WITHDRAWN: An integrated process of methanol coagulation and side stream membrane bioreactor for treatment of rice gruel wastewater

Abstract

Significant demand for water supply was to expect forthcoming decades. Production of reusable water from industrial and domestic wastewater is a feasible, cost-effective, and significant positive benefit to the environment. In the present study, the domestic rice gruel wastewater (RGW) treated with aqueous methanol coagulation integrated aerobic membrane bioreactor (AMBR). Hydrophilized spiral wound 5 kDa ultrafiltration membrane (HF – UF) used in the bioreactor for the effective removal of pollutants from RGW. Furthermore, the RGW pretreated with various coagulants such as methanol, ethanol, and HCl. The obtained pretreated RGW subjected to the HF-UF 5 kDa side stream AMBR for reusable water production. The experiments conducted to determine the turbidity, conductivity, total dissolved solids (TDS), and chemical oxygen demand (COD) found to be 96 %, 91 %, 91 %, and 94.6 %. The overall process was feasible, compact, environmentally free, cost-effective, eco-friendly.