Analysis of the Chemical and Mineral Composition of WWTP Sludge as a Sustainable Construction Material Kiki Gustinasari, Aulia Nur Mustaqiman, Luhur Akbar Devianto, Putri Setiani, Wahyunanto Agung, Tia Dwi Irawandani, Naula Rizak, Karima Aminina
Program Studi Teknik Lingkungan, Fakultas Teknologi Pertanian, Universitas Brawijaya
Jalan Veteran, Malang 65145, Indonesia
email corrspondence: tia.dwi.irawandani[at]gmail.com
Abstract
The dairy processing industry produces sludge from its Wastewater Treatment Plant (WWTP), which still contains organic and inorganic compounds. Sludge still has potential uses, such as calcium, phosphorus, and silica, which can be used as a substitute for construction materials. This study aims to analyze the chemical and mineral composition of WWTP sludge from dairy factories to assess its suitability as an environmentally friendly alternative construction material. The methods used in this study include X-Ray Fluorescence (XRF) testing of the sludge^s mineral composition, non-metallic chemical tests including pH, phosphate, and nitrite, and heavy metal tests including Pb, Cd, Cr, Ni, and Zn. Sample preparation is required. Sludge preparation is oven-dried in preparation for the XRF test. Sludge preparation requires oven-dried preparation for heavy metal testing using an AAS instrument. The results of this study are expected to contribute to the fields of materials engineering and industrial waste management, as well as support more environmentally friendly development policies.
Keywords: dairy industry - sludge composition- mineral of sludge- sustainable materials- waste management- WWTPs sludge.
Topic: Waste and environmental management and engineering
