Removal of COD and TSS from tomato ketchup industrial wastewater using cylindrical electrocoagulation method

Abstract

Tomato ketchup industrial sector is associated with various environmental problems including high concentration wastewater containing organic pollutant and suspended solid. While the industry always considers from an economic point of view, electrocoagulation can be the best alternative of treat wastewater which has the advantage easy in operation, minimum space requirements, low volumes of sludge produced, and can be used in high concentration wastewater. This paper investigated the effect of pH and current electricity on performance of removal of COD and TSS in tomato ketchup wastewater treatment. The research was conducted in continuous flow using cylindrical reactor with rod aluminum anode dan helical stainless-steel cathode, while the pH and current variations were 6, 7, 8 and 30 A, 35 A, and 40 A respectively. Based on analyzed data, aluminum has an effectiveness in COD and TSS removal. On the other hand, pH and current has a significant role on the process of removing COD and TSS. The best removal of COD and TSS was under the 35 A and pH 8 condition with 81,86 % (103.24 gCOD) and 82.61% (6.48 gTSS).