Potential Lifespan Increase of Membranes used for Wastewater Treatment by Electrocoagulation

Abstract

Electrocoagulation technology can treat pollutants without the need for coagulants. Coagulation takes place when current is applied and is capable of eliminating small particles. Additionally, electrocoagulation may reduce waste residue accumulation. In this project, treatment of domestic wastewater (DWW) by electrocoagulation (EC) was investigated. The samples were supplied from the HAYA domestic wastewater pretreatment plant. Experimental studies were conducted to determine the optimum operating conditions, that achieved the maximum removal, such as electrode type, treatment time, turbidity. This study focusses on having electrocoagulation process treatment within the process of membrane using iron Fe electrode. Water treatment using electrocoagulation will be conducted before going to membrane to improve the efficiency of the membrane and facilitate the process of the treatment. The nitrate and phosphate removal reached 59% and 45% respectively at 60 min in a continuous process. The highest removal of iron was in continuous process around 90% at 5 min. And for Mg removal, it reached 20% at 60 min with digestion with a currant of 220 mA and 1 cm electrode distance. The % Removal of metals increase with the increase in the voltage. The removal of Fe, Mg, phosphate reached to 41%,89% and 98% respectively.