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91	Environmental Science, Technology, and Education	ABS-80
The application and affectivity of fly ash granule using tapioca flour and sugarcane molasses as granule agents for soil ameliorant and fertilizer H Agusta(a*,b), FN Nisya(b), RN Iman(a), S Agustina(a) aDepartment of Agronomy and Horticulture, Institut Pertanian Bogor 16680, Indonesia *agusta[at]ipb.ac.id bSurfactant and Bioenergy Research Center, Institut Pertanian Bogor 16144, Indonesia Abstract The most popular fly ash application as coal combustion energy waste is as a mixing agent for cemented infrastructure and building construction. However, due to its appropriate various mineral content from vegetation fossil, the usage for fertilizer and soil amelioration agent was tested in small pots on the field. The purpose of the experiment was to confirm the effectivity of fly ash granule application using tapioca flour and sugar cane molasses as granule agents on the soil amelioration function and the sorghum growth, development, and its potential bioethanol yield harvested in the vegetative stage. The granule binding agents source is from agricultural product or byproduct or agricultural waste so that environmental management and the production system of the fly ash granules exhibit the advantage for a sustainable production system. The concentration of 10% of the granule binding agents concentration for the application at a rate of 8 tons ha-1 was effective enough to improve the soil properties, plant growth, and the doubling of bioethanol potential yield as well. Keywords: hazardous waste, bioethanol, granulation technique, bioenergy plant, biomass product Share Link | Plain Format | Corresponding Author (HERDHATA AGUSTA)

92	Environmental Science, Technology, and Education	ABS-81
Zinc contamination in surface water of the Umeda River, Japan Pertiwi Andarani(1,2), Hardianti Alimuddin(1), Ryosuke Suzuki(1), Kuriko Yokota(1), and Takanobu Inoue(1) (1)Department of Architecture and Civil Engineering, Toyohashi University of Technology, Toyohashi - 441-8580, Japan (2)Department of Environmental Engineering, Faculty of Engineering, Diponegoro University, Semarang - 50275, Indonesia Abstract Due to the adverse effects of zinc (Zn) on the aquatic organisms, environmental quality standards (EQS) for zinc of 0.03 mg/L in surface water has been enacted in Japan since 2003. However, zinc elevated sites persist, including Aichi Prefecture. This study aims to assess the temporal and spatial variability of zinc contamination for 14 months in surface water of the Umeda River, Aichi Prefecture. The water samples were analyzed using Flame Atomic Absorption Spectrometry. The zinc concentrations tended to be higher in a downstream direction. The concentration means of nine sampling stations in surface water in August 2019 to July 2020 varied from 0.011 to 0.031 mg/L. The annual mean concentration value has already exceeded the EQS. Meanwhile, the yearly concentration means of the industrial wastewater were 0.036 to 0.079 mg/L, lower than the National Effluent Standards of 2 mg/L in Japan. All sampling points had relatively high concentrations ranged from 0.021 to 0.062 mg/L in February during the winter season. The reduced precipitation causing low river discharges might consequently elevate the zinc concentrations. The total zinc load at the most downstream section was approximately 0.012 t/km2/year. According to this study, the Umeda River has been affected by anthropogenic activities. Keywords: zinc, spatial-seasonal variation, river water, japan Share Link | Plain Format | Corresponding Author (Pertiwi Andarani)

93	Environmental Science, Technology, and Education	ABS-83
Company Financial performance, Company characteristics and the quantity of environmental disclosure: Evidence from Singapore Indah Fajarini Sri Wahyuningrum(1*), Shanty Oktavilia(2), Badingatus Solikhah (1), Nilam Putri(1),Hadrian Geri Djajadikerta(3), Endang Tjahjaningsih (4) (1*) Accounting Department, Faculty of Economics, Universitas Negeri Semarang (i.fajarini[at]mail.unnes.ac.id) (2) Economics Department, Faculty of Economics, Universitas Negeri Semarang (3) School of Business and Law, Edith Cowan University, Australia (4) Department of Management, Faculty of Economics and Business, Unisbank Abstract Environmental disclosure is disclosed by company in an annual report or sustainability report as a form of responsibility to society and the environment. This study aims to examine the factors that influence environmental disclosure, consisting of profitability, leverage, company age, company size, industry type, and company age. Population in this study is non-financial companies listed on Singapore Exchange (SGX) in 2018. Purposive sampling is used as a sampling method, in order to obtain 61 companies as sample companies. Multiple linear analysis was used to test the effect between variables. The quantity of environmental disclosure is measured using the content analysis method. Profitability was measured by ROE and leverage was proxies by debt to total equity. Company size was measured by log of total assets and industry type used dummy variables for high profile and low profile industries. The result showed that company size has a significant positive effect on environmental disclosure. On the other hand, profitability, leverage and industry type have no significant effect on environmental disclosure. Based on the result test, large companies disclosed environmental disclosures as an effort to increase public trust and credibility Keywords: Environmental disclosure, profitability, leverage, company age, comage,industry type Share Link | Plain Format | Corresponding Author (Indah Fajarini Sri Wahyuningrum)

94	Environmental Science, Technology, and Education	ABS-88
Utilization of tofu wastewater and sugar industry by-products as a medium for the production of antifungal metabolites by Paecylomyces marquandii TP4 Desak Gede Sri Andayani, Desak Gede Tirta Andini #1 Research Unit for Clean Technology, Indonesian Institute of Sciences, Jl Cisitu, Bandung 40135, Indonesia. #2 Faculty of Science and Technology, Airlangga University, Jl. Dr. Ir. H. Soekarno, Mulyorejo, Surabaya,60115, Indonesia Abstract Paecilomyces marquandii strain TP4 is a saprophytic fungi that isolated from soil taken from Tangkuban Perahu Mountain at West Java Province, Indonesia. The aim of this research is to identify the growth profile of P. marquandii strain TP4 and the antifungal activity against Fusarium sp. Antifungal compound is produced by liquid fermentation method using tofu wastewater and molasses media. The fermentation broth is extracted by liquid-liquid extraction using n-hexane, ethyl acetate and methanol solvents. The result shows that the optimum activity is achieved after 120 hours fermentation. The fermentation broth has antifungal activity against Fusarium sp. where inhibitory diameter was 20 mm. The results of total flavonoid content and total phenolic content of freeze dry fermentation culture were 0.4839 mg/g and 1.171 mg/g, respectively. Ethyl acetate extract shows the highest antifungal activity with MIC 31.25 ppm and MFC 125 ppm.. The FTIR spectrum shows the functional groups of OH, aliphatic CH, C-C, aromatic C=C, CH and C-O. Characterization of antifungal compound based on phytochemical test and FTIR determine to be phenolic group. Keywords: tofu wastewater, molasses Paecilomyces marquandii Strain TP4, antifungal activity, Fusarium sp., Fermentation Share Link | Plain Format | Corresponding Author (Desak Gede Sri Andayani)

95	Environmental Science, Technology, and Education	ABS-89
Synthesis And Charactherization Of Fe3o4-Activated Carbon And It^s Application To Adsorb Methylene Blue Devika Safitri Dirgayanti 1, Soerja Koenarpadi 1*, Noor Hindryawati 1 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Mulawarman University, Samarinda 75123, East Kalimantan, Indonesia Abstract Synthesis and characterization of Fe3O4-Activated Carbon (Fe3O4-AC) and the application to adsorb methylene blue has been conducted. The Fe3O4-AC was synthesized using co-preciptation method by addition ammonium hydroxide 25%. The Fe3O4 was prepared from mixing mole ratio of Fe3+ and Fe2+ = 3:2 and AC was made from egg rack. Composite of Fe3O4-AC was characterized using Fourier Transform Infra-Red (FTIR), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) and Vibrating Sample Magnetometer (VSM). FTIR characterization was indicated the appearance peak of a C-O vibration at 1033.85 cm-1 and functional group of Fe-O at 540.07 cm-1. XRD pattern of Fe3O4-AC was presence peak of crystal structure Fe3O4 even though it^s small intencity. SEM image of Fe3O4-AC was spherical in shape with the denser pore of structure. The saturation magnetization of Fe3O4-AC was lower than Fe3O4. The result showed that adsorption of methylene blue on Fe3O4-AC and AC were optimum at pH 7. The sorption of methylene blue in Fe3O4-AC and AC was 126.043 and 102.82 mg/g, respectively. The performance of Fe3O4-AC was greater than that of AC. Keywords: synthesis, characterization, Fe3O4, activated carbonl, adsorption, methylene blue Share Link | Plain Format | Corresponding Author (Soerja Koesnarpadi)

96	Environmental Science, Technology, and Education	ABS-97
Economic Potential of Paper Waste Recycling Activities on the Informal Sector in Grobogan District A Case Study: Purwodadi Sub-District B P Samadikun1, D A B Sinttia1, A Rezagama1, S Sumiyati1, H S Huboyo1, B S Ramadan1, M Hadiwidodo1, and F Nabila1 1 Department of Environmental Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang, Indonesia 50275, Indonesia Abstract Waste is a serious issues, not only in Indonesia but also in other countries. The governments have conducted various attempts to reduce the waste, for example by recycling waste. One of the regions in Indonesia that done recycling is Purwodadi Sub-District, where the activity of waste utilization is mostly conducted in the informal sector. This research aims to estimate the economic potential and the expense the existing system of paper waste management and to analyze the benefits of paper waste management activity by the informal sector in Purwodadi Sub-District economically and environmentally. The method used is interviews and questionnaire surveys toward 31 recyclers consisting of scavengers, waste banks, garbage collectors I and II, and the dealers. Based on the research result, the economic potential in the enterprise of paper waste recycling by each recycler was different. By applying the implementation of the paper waste 3R program in the informal sector, the benefits are divided into two, economic and environmental benefits. The economic benefits are profits from selling paper waste taken from recyclers, while the environmental benefits as the paper waste management by the informal sector is the waste reduction with the percentage waste reduction of 15.9% in Purwodadi Sub-District. Keywords: Paper waste,Economic potential,Benefit analysis,Recycling Share Link | Plain Format | Corresponding Author (Firna Nabila)

97	Environmental Science, Technology, and Education	ABS-99
Cost Optimization of Tannery Wastewater Treatment by Electrocoagulation Process with Iron Electrode Under Various DC Voltage and Electricity Consumption Muchlis (*a), Ajeng Arum Sari (a), Widyarani (a) , Elan Sutarlan (a), Eduardus Budi Nursanto (b), Naufal Fasa (b) a) Research Unit for Clean Technology, Indonesian Institute of Sciences, Jl. Cisitu Sangkuriang, Bandung 40135, Indonesia b) Department of Chemical Engineering, Pertamina University, Jl Teuku Nyak Arief, Kebayoran Lama, Jakarta 12220, Indonesia *) muchlis1577[at]gmail.com Abstract Electrocoagulation (EC) is an electrochemical technique in wastewater treatment that generates coagulant species in situ by electro dissolution of the sacrificial electrode. This work aimed to optimize the operating cost of tannery wastewater treatment by EC with iron electrodes under various DC voltages and electricity consumption. The experiment was conducted in a 400 mL batch electrochemical reactor using three iron electrode plates under a mono polar configuration and parallel distances of 26 mm. Several variations of voltage (8, 12 and 16 volt) and electricity consumption (1.7 , 2.6 , 3.4 and 4.3 kWh/m3) were applied. The reactor performance was evaluated based on the sedimentation curve using Imhoff cone. Simultaneously, the operating cost was analyzed based on the electrode mass consumption and electricity consumption under variation in iron electrode price and electricity rates. The result showed that the optimum operating condition was obtained at the electrical voltage of 12 VDC and the electricity consumption of 2.55 kWh/m3. This condition had a current density of 1.7 A/m2, the electrode consumption rate of 0.31 kg/m3, and the operating cost of 0.45 - 0.55 USD/m3. Keywords: electrocoagulation, tannery wastewater, DC voltage, electricity consumption, electrode consumption, cost optimization Share Link | Plain Format | Corresponding Author (Muchlis Muchlis)

98	Environmental Science, Technology, and Education	ABS-100
Effect of Current Strength on Electrocoagulation Using Al-Fe Electrodes in COD and TSS Removal of Domestic Wastewater Wiharyanto Oktiawan, Ika Bagus Priyambada, Fendi Setyo Budi, Satrio Aji Environmental Engineering Departement, Engineering Faculty, Diponegoro University Abstract Domestic wastewater is wastewater that comes from household activities such as kitchens, baths, laundry, and water closets. Domestic wastewater contains parameters that can cause environmental pollution, so it needs to be treated. One of the domestic waste treatment technologies using electrocoagulation. Electrocoagulation is a continuous coagulation process using direct electric current through electrochemical events. The purpose of this study was to determine the effect of current on electrocoagulation using Al-Fe electrodes in reducing contaminant levels of domestic wastewater (COD and TSS). The electrode configuration used in this study was Al-Fe with a variation of the current strength used was 1 A, 2 A, 3 A. The electrocoagulation process was carried out continuously with a contact time of 12 minutes. The sampling process was replicated at 12 minutes, 17 minutes, 22 minutes, 27 minutes, 32 minutes, 37 minutes and 42 minutes. The instrument used in this study was an electrocoagulation reactor with dimensions of 6 cm x 10 cm x 18 cm with Al and Fe electrode configurations. Treatment of domestic waste using electrocoagulation and filtration technology can remove COD parameters in the Al-Fe electrode configuration with a current of 2 A and sampling at 27 minutes with an efficiency of 95%. The most optimum removal of TSS parameters of 94% was obtained in the Al-Fe electrode configuration with a current of 2 A and taking samples at 37 minutes. Keywords: domestic waste water, electrocoagulation, COD, TSS, Al-Fe electrodes, current strength Share Link | Plain Format | Corresponding Author (Wiharyawan Oktiawan)

99	Environmental Science, Technology, and Education	ABS-102
Integration of Upflow Anaerobic Sludge Blanket and Constructed Wetlands for Pharmaceutical Wastewater Treatment Hanny Vistanty, Farida Crisnaningtyas Balai Besar Teknologi Pencegahan Pencemaran Industri Abstract Pharmaceutical wastewater is one important issue for environmental and human safety, due to their resistant characteristic and toxicity. Studies reported that pharmaceutical residue and several drug metabolites have been detected in the aquatic environment and pose high risk on human and the ecosystem. Many technologies, ranging from conventional methods, such as activated sludge, anaerobic digestion, and aerobic membrane bioreactors (MBR), to advanced treatment, such as advanced oxidation process (AOP), or integration of more than one method was applied for pharmaceutical wastewater treatment. Integration of Upflow Anaerobic Sludge Blanket (UASB) and constructed wetlands was applied for pharmaceutical wastewater treatment discharged by one of pharmaceutical industry in Semarang. The performance of UASB and constructed wetlands were evaluated. Up to 73% and 94% of COD removal efficiency was achieved in UASB and constructed wetlands, respectively. An average 95% of pollutant removal was achieved by the system, indicating the stability and ability of integration in pharmaceutical wastewater treatment. Keywords: pharmaceutical, wastewater, UASB, constructed wetlands Share Link | Plain Format | Corresponding Author (Hanny Vistanty)

100	Environmental Science, Technology, and Education	ABS-105
A Continuous Mode Reactor Design for Industrial Textile Wastewater Treatment Through Catalytic Ozonation Rame, Rustiana Yuliasni, Ningsih Ika Pratiwi, Novarina Irnaning Handayani, Nanik Indah Setianingsih Balai Besar Teknologi Pencegahan Pencemaran Industri Abstract The low energy requirements to treat industrial textile wastewater combined with the very fast catalytic reaction give catalytic ozonation capacity to operate them for industrial applications. However, gathering this catalytic ozonation remains energy-consuming and, as a consequence, expensive. In this work, a continuous mode reactor design arrangement with an integrated sensor is investigated for industrial textile wastewater. The combination of the autonomous and continuous removal of the impurities makes this continuous mode reactor excellent for the treated wastewater on the industrial textile scale. Keywords: continuous mode reactor- industrial textile wastewater- catalytic ozonation Share Link | Plain Format | Corresponding Author (Ningsih Ika Pratiwi)

101	Environmental Science, Technology, and Education	ABS-106
A Proposed Catalytic Ozonation Reactor Design For Reuse Large Scale Industrial Wastewater Rame, Agus Purwanto, Silvy Djayanti, Yose Andriani Balai Besar Teknologi Pencegahan Pencemaran Industri Abstract The large scale industrial wastewater is a longstanding problem, but considerations of the industrial wastewater treatment progress are unusual and the design of wastewater treatment required by industry is severely deficient. To make industrial wastewater an economically viable source of clean water, we propose a logical approach towards the design of a large scale catalytic ozonation reactor for reuse large scale industrial wastewater. ANSYS software is used as a primary tool to provide an estimation of the Ozone transfer and catalytic performance of the reactor and the effects of reactor design are investigated. The Ozone transfer of 100 g/h, energy consumption rate of 3 kW/h, and a catalytic time of 120 seconds are all within acceptable ranges typical to industrial wastewater. It is estimated that a double catalytic ozonation reactor of 5 m3 can supply the clean water demand of 100 m3/day. Keywords: industrial wastewater- catalytic ozonation reactor- ANSYS Share Link | Plain Format | Corresponding Author (Yose Andriani)

102	Environmental Science, Technology, and Education	ABS-107
Mapping Chlorophyll-a and Total Suspended Soil (TSS) Distribution in the Waters of Ciletuh Bay Illa Annisa (a) , and Supriatna(a) (a) Universitas Indonesia Abstract The waters of Ciletuh Bay are one of the waters located in southern Java that interact directly with the Indian Ocean, which is utilized for fishing and tourism activities. Opportunities for utilization of Teluk Ciletuh waters in the field of fisheries need to be maximized by monitoring the quality of the waters of the bay area. Remote sensing methods can identify and analyze the results of the spectral recording of water with observations of TSS and Chlorophyll-a spreads obtained using the Budhiman algorithm et al., (2004), and the concentration of TSS results from the algorithm Wibowo et al., (1994). Observations were conducted using Citra Landsat-8 in 2019 - 2020. The results of the application of the algorithm obtained the results of TSS concentrations in the waters of Ciletuh Bay have a maximum value of >125 mg/l - 225 mg/l, and a minimum value of 6 mg/l - 15 mg/l. Chlorophyll-a concentration reaches a maximum value of 6 mg/l - 10 mg/l, and a minimum value of 3 mg/l - 5 mg/l. The same distribution pattern is indicated by both parameters, namely high concentrations in coastal areas and river estuaries, and lower in the high seas. Keywords: Remote Sensing- Chlorophyll-a- TSS- Ciletuh Bay Share Link | Plain Format | Corresponding Author (Illa Annisa)

103	Environmental Science, Technology, and Education	ABS-111
Optimazitation Of Nitrogen Removal in Activated Sludge Process Using Simultaneous Nitrification Denitrification Method Junaidi (1*), Sri Sumiyati (2), M Arief Budihardjo (3), Wiharyanto Oktiawan (4), Ronauli Sitinjak (5) Environmental Engineering Department of Engineering Faculty, Diponegoro University, Tembalang, Semarang, Indonesia, 50275 junaidiundip[at]gmail.com Abstract This research has investigated of high nitrogen concentrations by simultaneous nitrogen nitrification and denitrification (SND) in a continuous flow system of activated sludge processes. Merriote tube capacity of 10 L with a discharge of 10 L/day as an inlet. Next to the 10 L volume aeration tank where biological treatment occurs, pH 7,2 and DO 1-1.5 mg/L are the control variables. Artificial waste is used as an inlet with a nutrient ratio of C:N:P is 100:5:1. This research was conducted by variations in carbon sources is namely glucose and methanol and ariations of CN ratios of 5, 10, and 20 were also carried out. SND (Simultaneous Nitrification Denitrification) occured by nitrogen removal the highest percentage of N nitrification to nitrification when the source of carbon methanol and the ratio of CN 20 is 63.38 %. While the percentage of N denitirification is at the time of methanol and the CN ratio of 20 is 65.97 %. That proper SND technology can save operating time and energy, and may replace two traditional stages: biological nitrification and denitrification processes. Keywords: artificial wastewater, nitrogen removal, activated sludge, simultaneous nitrification-denitrification Share Link | Plain Format | Corresponding Author (Ronauli Sitinjak)

104	Environmental Science, Technology, and Education	ABS-113
Analysis of Land Suitability for Water Resources Infrastructure Development in Merauke Regency Yohanes D. Aditya (a), Anjar D. Sakti (a), Ketut Wikantika (a), Agriarso W. Septiawan (b) (a) Center of Remote Sensing (CRS), Institut Teknologi Bandung (ITB), Jalan Ganesha 10, Bandung, West Java, Indonesia (b) Geospastial Analyst of Merauke Regency Government Abstract The availability of water in a region had an important role in the sustainability of the life of the people. According to Laws of the Republic of Indonesia number 7 of 2004 water resources management is needed to plan, and evaluate the implementation of water resources conservation, utilization of water resources that are needed by the community. Rawa Biru is a swamp located in Wasur National Park, Merauke Regency, used as the main water source by the government to fulfill the clean water needs of the people of Merauke. In 2003, the area of Rawa Biru^s potential water body was 881.17 square km with an actual water body area of 1.13 square km or 113 hectares. In 2006, it was noted that the actual area of swamp water bodies had shrunk to 95 hectares. Therefore, this study aims to determine the location of the latest water resources development to prepare if Rawa Biru can no longer be used in the future. This study uses several parameters, namely: rainfall and evapotranspiration to measure the location that has the most water reserves. Then, we use river network data, river flow accumulation, slope to determine the exact location of infrastructure development planning for water resources. The results show that these parameters are able to show the potential of water reserves and suitable locations for the construction of water resources conservation infrastructure for the benefit of the community. This research is expected to be a recommendation for policy makers to develop water resources infrastructure in the regions. Keywords: Water Resources, Water Infrastructure, Rawa Biru, Merauke Share Link | Plain Format | Corresponding Author (Yohanes Dian Aditya)

105	Environmental Science, Technology, and Education	ABS-115
Land Allocation based on Physiological Needs and Land Suitability by Using the Combination of Ecological Footprint and SVM Sitarani Safitri, Irawan Sumarto, Akhmad Riqqi, Albertus Deliar, Ketut Wikantika Remote Sensing and Geographic Information Science Research Group, Department of Geodesy and Geomatics, Faculty of Earth Science and Technology, Bandung Institute of Technology, Bandung 40132, Indonesia Abstract Land can produce products in the form of goods and services (supply) to meet human needs (demand). Meeting human needs through development activities requires the allocation of land cover/land use. Land cover/land use should be allocated with regard to the land capability itself. The ability of land to meet human needs, particularly physiological needs as as basic survival needs. Based on existing developments, ecological footprint (EF) becomes a simple but comprehensive land allocation calculation method. The calculation of land allocation certainly needs to pay attention to its land suitability. The concept of land suitability aims for optimal and sustainable land use. This can be achieved by providing information on the relationship between land characteristics. Land suitability in this model is assessed using elevation, slope, water availability, type of ecoregion, rainfall, and temperature. In this study, land suitability model was conducted using Support Vector Machine (SVM) with the kernel trick. SVM is used to find the best hyperplane by maximizing the distance between classes. Hyperplane is a function that can be used to separate between classes. Overall Accuracy of land suitability modeling results, namely 87,728%. The kappa coefficient value is 0.812 with a significance value of 0.00. The results of land allocation modeling with EF show that agricultural, plantation, and pastures are in deficit. The EF-based allocation was then compared with the land suitability. The final results show that agricultural land, plantations and pastures are still experiencing deficits, but there are some reduction. The amount of deficit reduction for agricultural land reached 651,634.4202 ha, plantations 19,914.95913 ha, and pastures 1,695.578149 ha. The research results are expected to provide an overview for policy making related to land use planning. Keywords: land allocation- ecological footprint- SVM- land suitability- Share Link | Plain Format | Corresponding Author (Sitarani Safitri)

106	Environmental Science, Technology, and Education	ABS-116
A Waste Management System Development In The Saponda Darat Island By The Integration Of Remote Sensing Data And Economic Aspects D C A Masse (a,b*), F Wardhana (c), A D Sakti (a,b), L M G Jaya (d), K Wikantika (a,b) a) Remote Sensing and Geographic Information Science Research Group, Faculty of Earth Sciences and Technology, Institut Teknologi Bandung, Bandung 40132, Indonesia b) Center for Remote Sensing, Institut Teknologi Bandung, Bandung 40132, Indonesia c) Graduate School, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia d) Department of Engineering, Universitas Halu Oleo, Kendari 93132, Indonesia *ambomasse.cd[at]gmail.com Abstract Waste is one of the biggest problems faced in almost all countries in the world including Indonesia, especially for the archipelago. Saponda Darat Island is located at 3^o58^46^ S dan 122^o45^44^ second E in Soropia, Konawe Regency, Southeast Sulawesi. As a small island, the population on the Saponda Darat Island is quite dense. According to the headman, the population is 1,613 inhabitants with 486 households. The lack of waste management on this island causes a large amount of waste on the land and in the sea around the island. The objective of this study is to develop a waste management system based on geospatial information in the Saponda Darat Island as the effort to solve the waste problems based on the economic aspect. The analysis is carried out spatially by utilizing remote sensing satellite data to determine the main garbage dump on the island and to determine the efficient waste transportation routes from the mainland. The result of this study are in the form of technical recommendations for waste management in small island areas, a map of the main garbage dumps and a map of the transportation route for transporting the waste. Keywords: Remote sensing, Waste management system, Islet territory Share Link | Plain Format | Corresponding Author (Derick Christopher Ambo Masse)

107	Environmental Science, Technology, and Education	ABS-117
Performance Stability of Reactors in Disseminating COD And Ammonium in Domestic Waste Contaminated with Pharmaceutical Residues Sudarno, Nurandani Hardyanti, Masni Sipayung Department of Environmental Engineering, Faculty of Engineering, Diponegoro University Jl.Prof. H. Sudarto, SH Tembalang, Semarang, 50275, Indonesia Abstract Currently, the use of PPCP products has increased significantly. Personal Pharmaceutical Care Products (PPCPs) enter the environment through human activities such as residue from hospital and community use. This study will discuss the stability of the intermittent and continuous reactor^s performance in removing COD and ammonium from domestic waste, which has been operational for 20 days, and an increase in the concentration of pharmaceutical residue pollutants every five days. The sediment used was derived from the septic tank sediment and used artificial waste with an initial COD of 100 mg / l and initial ammonium of 80 mg / l. The results showed that the increase in the concentration of pharmaceutical residual pollutants in the operational reactor affected COD removal and ammonium efficiency. The stability of the reactor performance in removing COD and Ammonium in domestic waste contaminated with pharmaceutical residues was disrupted because microorganisms in removing COD and ammonium were disrupted amoxicillin concentration increases. Keywords: Keywords: amoxicillin, ammonium, COD, intermittent and continuous reactor Share Link | Plain Format | Corresponding Author (Masni Friska Sipayung)

108	Environmental Science, Technology, and Education	ABS-118
Carrying Capacity of Air Quality Analysis as Part of Air Pollution Control Strategy In Kendal Industrial Estate, Kendal Regency, Central Java Nurandani Hardyanti, Haryono S Huboyo, Surya Prayoga Universitas Diponegoro Abstract The development of the industrial sector in Indonesia produces benefits and carries risks, one of which is air pollution. Industrial estates play an important role as economic growth source with their emissions should have cared in terms of carrying capacity of air quality in their area. The projected carrying capacity of air quality is predicted using a simple box model with the emission factor using IPPS. Historical ambient air quality measurements in this area were also collected. Based on the calculation results show the constructed industries emission load of SO2, NO2, CO, VOC, and TSP 109 tons/year, 128 tons/year, 42 tons/year, 1263 tons/year, and 2008 tons/year. In order to not exceed the ambient air quality standard, the maximum number of industries that can be accommodated in those areas is 190 industries. The critical parameter for violating ambient air quality standard is TSP. Thus, air pollution control strategy should be focused on reducing TSP emission load. Keywords: industrial estate, IPPS, emission load, Capacity of Air Quality Share Link | Plain Format | Corresponding Author (Surya Prayoga)

109	Environmental Science, Technology, and Education	ABS-120
Relationship Of Quality Management System Standards To Industrial Property Rights In Indonesia Using Spearman Correlation Analysis Method Arfan Bakhtiar, Hery Suliantoro, Novie Rahayu Ningsih, Knight Pitipaldi Departemen Teknik Industri, Universitas Diponegoro Abstract This study examines the relationship between the application of SNI ISO Quality Management System Standards to Industrial Property Rights in Indonesia using Spearman Correlation Analysis. The focus of research is on the comparison of the correlation coefficient value of quality management system standards: SNI ISO 9001 QMS, SNI ISO 14001 EMS, SNI ISO 22000 FSMS, SNI ISO 13485 MD-QMS, SNI ISO 27001 ISMS, SNI ISO 16949 A-QMS with industrial property rights : patents, simple patents, industrial designs and brands in Indonesia. The test conducted was to see the data relationship between the number of quality management system standard certificates to industrial property rights in Indonesia for 7 years starting from 2009 to 2015. The spearman correlation method is used to analyze the correlation coefficient value on the development of certificate data held in Indonesia. The results of the Spearman correlation test show that several quality management system standards have significant values that have entered the tolerance limit or have gone out of the tolerance limit for industrial property rights. These evidences suggests several quality management system standards able to contribute to the development of innovation in a country, especially Indonesia. Keywords: Industrial Property Rights, Innovation, Quality Management Standard, Environment Management Standard Share Link | Plain Format | Corresponding Author (Arfan Bakhtiar)

110	Environmental Science, Technology, and Education	ABS-122
Estimation Of The Potential of Understorey and Litter Carbon On the Shrub Bush Vegetation in Aceh Besar District Umar H. A, Sufardi, Syafruddin, Teti Arabia, Munar Syiah Kuala University Abstract Abstract. The distribution of scrub vegetation is almost evenly distributed in Aceh Besar district. The desire to see the carbon potential that exists in this vegetation and treat it - future treatment will be carried out both reforestation and soil management so that increase carbon stock for the future. Therefore it is necessary to do research to find out how much carbon potential is in scrub vegetation in the district Aceh Besar. Making plots according to field conditions. Then determined each vegetation growth on seedling plot sizes with a minimum area of 4 m2 (growth rate woody vegetation < 2 cm in diameter with a height = 1.5 m) and minimal stake plot area 25 m2 (growth rate of woody vegetation with a diameter of 2 cm to <10 cm). Each plot, both seedling and sapling plots, was repeated 5 times.Vegetation Shrubs <2 cm in size are dominated by Teki grass (Cyperus rotundus) and Putri Malu (Mimosa pudica). For shrub vegetation measures 2 cm - 10 cm across dominance by Acacia mangium plants. The total amount of plant carbon biomass is 2,053,546.33 tonnes / ha, a C value of 964,990.26 tonnes / ha and the potential for CO2 absorption at plants amounting to 3,540,455.15 tonnes / ha on shrub vegetation in the district Aceh Besar. Keywords: Scrub, CO2, Aceh Besar District Share Link | Plain Format | Corresponding Author (Umar H A, S.P., M.P)

111	Environmental Science, Technology, and Education	ABS-128
Numerical simulation of detailed airflow distribution in newly developed photosynthesis chamber Moliya Nurmalisa1*, Takayuki Tokairin1, Kotaro Takayama2, and Takanobu Inoue1 Architecture and Civil Engineering Department, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan. 2 Electronics - Inspired Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441 - 8580, Japan. Abstract Predictive numerical simulation about the uniformity of airflow in canopy plants could provide a suitable environment for plant growth. A numerical investigation of airflow in a photosynthesis chamber was conducted using a CFD model. This research was designed to conduct a validation of the numerical model with measurement performed in an empty bottom opened chamber. The chamber has bottom openings and three exhaust fans are set on the roof. After model validation, airflow pattern and its uniformity were evaluated in the case of 1) different fan arrangement and 2) doubled air volume rate. Obtained results showed that increasing the air volume rate of the fans and changing fan positions to middle and diagonal positions significantly affect the uniformity of air velocity distribution in the canopy plant. Keywords: CFD model, Airflow, Air distribution Share Link | Plain Format | Corresponding Author (Moliya Nurmalisa)

112	Green Infrastructure	ABS-27
Life Cycle Assessment (LCA) of Portland Composite Cement (PCC) 50 kg Paper Craft Bag at PT. Semen Padang Tabita Panggabean, Rizki Aziz, Yommi Dewilda Environmental Engineering Department, Andalas University Limau Manis, Pauh, Padang City, West Sumatra 25163 panggabeantabita[at]gmail.com Abstract PT. Semen Padang produces several types of cement, includes PCC, with total production is up to 6,568,354 tons in 2018. PCC production reached 54% of the total, where the size of 50 kg bag dominates the production with 93%, and the use of paper craft bags as the cement packaging is 78.39%. This research aims to analyze the environmental impacts of the production of 1 ton of PCC 50 kg paper craft bag using the LCA method. The gate-to-gate approach applies as the boundary, ranging from raw mill till packing unit, and the 9th version of SimaPro used as a tool to assess. IMPACT 2002+ used as the method to assess the environmental impact of the production. The result shows that the highest environmental impacts are global warming, non-renewable energy, and respiratory inorganics with the value amounted to 0.10884252 Pt. The process of calcination and coal used in the kiln, packaging transport by diesel-powered truck, and the use of electricity is the main contributor to the impact value. In order to improve PCC production, it is recommended to have an alternative fuel on the kiln unit and use biodiesel-20 as the truck^s fuel, to reduce coal and gaseous emission. Keywords: 1 ton PCC 50 kg Paper Craft Bag, Biodiesel-20, IMPACT 2002+, LCA, PT. Semen Padang, 9th version of SimaPro Share Link | Plain Format | Corresponding Author (Tabita Panggabean)

113	Green Infrastructure	ABS-73
EFFECT OF SMART ENVIRONMENT ELEMENTS ON OCCUPANCY RATES OF SUBSIDY HOUSING IN KECAMATAN BALIKPAPAN UTARA Mega Ulimaz (a*), Elin Diyah Syafitri (a) Urban and Regional Planning Department, Institut Teknologi Kalimantan Jl. Soekarno Hatta Km 15 Balikpapan *megaulimaz[at]lecturer.itk.ac.id Abstract In line with the decline of mining and oil business since 2015, the purchasing power of the middle and upper class houses of Balikpapan City residents has also decreased. Property developers change strategy by developing low-cost and subsidies housing. However, often the end result of the construction of cheap housing is still not built environmentally. It is very important to consider environmentally friendly housing. Many of these subsidy housing developments are built in Kecamatan Balikpapan Utara. Based om the existence of subsidy housing in Balikpapan Utara that is already built and inhabited, it is necessary to identify the influence of smart environment elements on the occupancy rates of existing subsidy housing in order to improve environmental quality. The analysis of the occupancy rate of subsidy houses based on smart environmental elements is carried out through a linear regression model. The results of the analysis show that there are only 2 significant variables, distance of arterial roads and the affordability of religious facilities. If the affordability of arterial roads increases by one unit, then the number of houses occupied will increase by 15%. If the affordability of religious facilities increases, the number of houses occupied will increase by 74%. Keywords: occupancy rates, smart environment, subsidy housing Share Link | Plain Format | Corresponding Author (Mega Ulimaz)

114	Green Infrastructure	ABS-82
Analysis of the Green Building and Technology Concept at the Universitas Negeri Semarang to realize the pillar of conservation Gilang Ramadhan Universitas Negeri Semarang Kampus Sekaran-Gunungpati-Semarang50229, Indonesia unnes[at]unnes.ac.id Abstract Along with the times and technology that provides many benefits, it cannot be denied that new problems have also emerged, such as climate change and global warming. If it continues, this will bring disaster for the sustainability of the next generation. So it is necessary to improve and balance the environment by applying the green building concept. This is in line with the Universitas Negeri Semarang which has a vision and mission as a conservation university. In this study progress, green building studies are focused on the analysis of green roofs and street buildings in educational buildings. Buildings that have educational functions need to be studied with green building concepts and technology to become a reference source that can later be applied in other university. This study is focused on the analysis of green roofs and street lamps in buildings. The purpose of this research is to identify the concept of green roofs and street lamps on the university buildings of the Universitas Negeri Semarang to realize the pillars of conservation. The method used in this research is descriptive qualitative. The location of this research is around the sub-district of Gunungpati, Semarang City, Universitas Negeri Semarang, which uses the application of green roofs and street lamps. The results of this study indicate that the sustainable system has become one of the priority policies on the Universitas Negeri Semarang. Green roofs and street lamps are not only an attempt to create sustainable architecture, but also from an aesthetic point of view. Green roofs and street lamps are an appropriate application of the green building concept to be applied to buildings because they can reduce resource costs and save energy. Keywords: Green building, Universitas Negeri Semarang, Conservation Share Link | Plain Format | Corresponding Author (Gilang Ramadhan)

115	Green Infrastructure	ABS-84
Water Potential Research to Fulfill Raw Water Needs in Gunungkidul A Sarminingsih*, A Rezagama Department of Environmental Engineering, Engineering Faculty, Diponegoro University, Semarang, Indonesia *aniksarminingsih[at]lecturer.undip.ac.id Abstract Gunungkidul has the potential for raw water from underground rivers with a discharge reaching 1,000 lps. This river is in the middle zone of Gunungkidul Regency and has not been used optimally. This study aims to analyze the condition of water supply in Gunungkidul Regency and to plan the development of water supply in Gunungkidul Regency. The methods used in this study include direct measurement, surveys, and interviews. From the analysis it was found that the available underground river discharge capacity in Gunungkidul Regency was 4,516 lps, while the water demand for each district after accumulation was 4,030 lps. The difference between the available discharge capacity and the water needs of Gunungkidul Regency is 486 lps. With this difference, it can be seen that the discharge of 440,72 lps has not been utilized in Gunungkidul Waterwork Company. To reduce the difference in discharge capacity, a regional drinking water supply system originating from the Gunungkidul Regency can be made for several districts in the Special Region of Yogyakarta and Central Java. Keywords: Drinking water supply- water needs- underground river Share Link | Plain Format | Corresponding Author (Anik Sarminingsih)

116	Green Infrastructure	ABS-93
OTTV Recalculation of Suara Merdeka Tower: A Recommendation Design Towards Energy Efficient Building Previari Umi Pramesti, Mirza Ramandhika, Muhammad Ismail Hasan, Hermin Werdinningsih 1Vocational School, Universitas Diponegoro, Semarang, Indonesia 50275 2Architecture Department, Faculty of Engineering, Universitas Diponegoro, Semarang, Indonesia 50275 Abstract This paper discusses how a building facade design posses an immense significant effect on thermal value transfer on building envelopes. The thermal transfer from outside into the building through the building envelope affects the thermal conditions in the building. Hence it determines the energy requirements in the room, such as the need for indoor air conditioning. Calculation on the southwest facade of Suara Merdeka Tower Semarang using the Ecotect software with the result that the OTTV (Overall Thermal Transfer Value) reaches above 35 W / m2 that is 59.44 W / m2. This facade is the face of the building as well as the smallest facade area. This smallest area remarkably influences on conditions in the building since the combination of glass types dominate and no shading devices on the entire side of the building. Solar radiation falls directly on the Southwest side after 12.00 pm and is not shadowed at all (overshadowed by 0%). This study simulates the redesign of the southwest facade and recalculates the OTTV value after the redesign process using the Ecotect software. The result obtained is a decrease in OTTV value by up to 35% after redesign recommendation applied. Keywords: OTTV recalculation, OTTV simulation, thermal transfer Share Link | Plain Format | Corresponding Author (Previari Umi Pramesti)

117	Green Infrastructure	ABS-96
Viscoelastic properties characterization of modified bamboo (Dendrocalamus asper) through acetylation assisted by supercritical CO2 S Silviana, M Petermann Department of Chemical Engineering, Faculty of Engineering, Diponegoro University, Jl. Prof. Sudarto, SH Kampus Tembalang, 50275 Semarang, Indonesia Particle Technology, Faculty of Mechanical Engineering, Ruhr University Bochum, Universitaetsstrasse 150, 44801 Bochum, Germany Abstract Acetylation of bamboo assisted by supercritical CO2 had been observed to overcome conventional modification regard with time and chemicals. The modification by acetylation had been executed to endure the bamboo in term of carbon capture storage in materials. This paper is aimed to identify the viscoelastic properties of acetylated bamboo such as glass transition temperature (Tg) using dynamic mechanical analysis (DMA) with a DMA Eplexor 500N instrument. Testing was performed in a heating range of 293 to 523 K at a rate of 2oC/min, with an oscillating torsional force applied at a frequency of 2 Hz. The untreated, dried bamboo exhibited a high Tg of 408 K. This Tg of the untreated bamboo reflected the same with Tg of the lignin and hemicellulose components, while the Tg is lower than that of the cellulose component, i.e. 516 K. The treated bamboo exhibited thermal softening releasing the Tg of lignin and hemicellulose decreased to 314 K and the Tg of cellulose shifted to 496 K owing to the plasticizing effect of the esterification reaction after the acetylation. Investigation of the thermoplastic behavior of solid acetylated bamboo indicated that the significant decrease in the Tg was resulted from acetylation reaction. Keywords: acetylation, bamboo, supercritical CO2, dynamic mechanical analysis, glass transition temperature Share Link | Plain Format | Corresponding Author (Silviana Silviana)

118	Green Infrastructure	ABS-124
OPEN SPACE FUNCTION IN PLAZA AREA IN CENTRAL JAVA GREAT MOSQUE Ahmad Mahbub Hamdani, Atiek Suprapti, R. Siti Rukayah Doctoral Study Program of Architecture and Urban Sciences, Diponegoro University Abstract The plaza area at the Great Mosque of Central Java is a non-green open space of the Central Java Grand Mosque building complex. The plaza area of &#8203-&#8203-this mosque is a transformation of the square in an ancient Javanese mosque, in a modern architectural form. The Plaza area has an important role in the building, because the plaza area at the mosque is the first place we meet, and becomes the center of circulation and socio-religious activities for visitors. Thus, it is necessary to design a plaza area at the Grand Mosque of Central Java which considers all aspects. Open space has a role as a container that can accommodate certain activities of the community in certain areas, therefore open space has a contribution to be given to humans in the form of positive impacts. This research was conducted at the Grand Mosque of Central Java using qualitative-descriptive methods. This research focuses on studies in the plaza area of &#8203-&#8203-the Grand Mosque of Central Java in terms of open space functions. The results of this study, in the plaza area at the Great Mosque of Central Java, show that it has not fulfilled both as a general function of open space and an ecological function. Keywords: plaza area, grand mosque of central java, open space function Share Link | Plain Format | Corresponding Author (Ahmad Mahbub Hamdani)

119	Green Infrastructure	ABS-125
Financial Framework of Disaster Waste Management in Lombok Earthquake 2018 Maryono (*), Hariyadi, Takayuki Shimaoka, and Hirofumi Nakayama Center for Green Infrastructure Resilience and Development, Diponegoro University *maryono[at]pwk.undip.ac.id Abstract Financing is an important component in the success of disaster waste management due to the earthquake in Lombok. This study provides a basic conception of the calculation of the financing component that needs to be explored further. The study recommends that the financing components that must be included are as follows: formulation of boarding units as a basic cost, costs related to damage to public facilities, costs related to damage to facilities owned by legal entities, and costs incurred in damages in the category of private ownership. Keywords: Financial Framework, Disaster Waste Management, Lombok Earthquake 2018 Share Link | Plain Format | Corresponding Author (Maryono Maryono)

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