Modified cassava flour (mocaf) wastewater treatment using electrocoagulation reactor

摘要

Modified cassava flour is made from fermented cassava and applied to substitute wheat flour. Mocaf wastewater was produce from the cassava soaking and fermentation process. This wastewater contains organic pollutant that must be treated before thrown into the environment. The objective of this study is to reduce COD, TSS, and TDS in Mocaf wastewater using electrocoagulation. The study was conducted on a laboratory scale using a batch reactor electrocoagulation with an aluminum electrode. The voltage of electro coagulator was varied (12, 18, and 24 Volt) with process time was 0, 30, 60, 90, 120, 150, and 180 minutes. The results showed that removal of COD, TDS, and TSS in mocaf wastewater increases with an increasing electrolysis time. COD, TSS, and TDS removal could achieve 73%, 90%, and 36% respectively. Kinetic adsorption data fitted with a pseudo-second-order for COD removal. At the end of electrolysis time, the pH of wastewater towards neutral.