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
