Elsa Windiastuti, Nastiti Siswi Indrasti, Udin Hasanudin, Yazid Bindar, Suprihatin
Palm oil liquid waste is difficult to handle due to the large amount and ineffective processing system. To overcome this problem, electrocoagulation process has been proven effective in treating various liquid waste. Therefore, this study aimed to identify a decrease in pollution load on palm oil mill secondary effluent (POMSE) in electrocoagulation process through a batch system. The process was carried out using a reactor from a power supply circuit, a voltmeter, a trophy cup, an aluminum electrode rod, and a magnetic stirrer. The electrodes used comprised aluminum measuring 12 x 2 cm, which were arranged bipolarly with a distance of 1 cm. The voltage variations used were 15, 20, and 25 volts with contact times of 30, 60, and 90 minutes. The objective of this study was to determine the performance of electrocoagulation to reduce the pollution load on POMSE under various operating conditions such as voltage and contact time. The results showed that the best treatment was obtained at a voltage of 25 volts for 30 minutes with the removal efficiency of chemical oxygen demand (COD), total suspended solids (TSS), turbidity, and color of 50.6%, 98.69%, 97.83%, and 88.71%, respectively. Cost calculation using the Activity-Based Costing (ABC) method. The operational costs required to process POMSE were found to be $ 0.98/m3. © 2024, Thai Society of Higher Eduation Institutes on Environment. All rights reserved.
Department of Agricultural Industry Engineering, IPB University, West Java, Indonesia; Department of Agricultural Product Technology, University of Lampung, Lampung, Indonesia; Department of Chemical Engineering, Bandung Institute of Technology, West Java, Indonesia; Department of Agroindustrial Technology, Sumatera Institute of Technology, Lampung, Indonesia
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