Aerobic Brickbat Grit Sand (ABGS) Purifier: The New Technology for Treatment of Wastewater in Rural India

Abstract

Rural wastewater treatment is mostly ignored in developing and undeveloped countries. The most important barrier for addressing to this problem is cost of treatment and simplified technology. Aerobic Brickbat Grit Sand (ABGS) purifier consists of four stages. Wastewater flows gravitationally through partition walls in zigzag pattern with brick bats filter; Pebble sand filter and charcoal and grit filter which facilitate removal of contaminants from domestic wastewater. In the present study, experimental model for domestic wastewater treatment was setup in the Environmental Engineering laboratory at Government College of Engineering Aurangabad, Maharashtra. Physiochemical analysis was done in August and September of 2016 the percentage removal of contaminants results shows Biological Oxygen Demand (BOD) 92% - 87%, Chemical Oxygen Demand (COD) 93 - 89%, Total Suspended Solids( TSS) 80 - 78% and Turbidity 95 - 85%. After successful examination of experiment model pilot model was established in the same campus for the treatment of boys hostel grey water .ABGS purifier pilot plant model for grey water treatment show high efficiency in removal of BOD (89%), COD(90%), TSS (86%), Total Phosphorus (77%), Nitrate (93%), Ammonia((90%), Sulphate (67%), Oil and grease(82%).ABGS purifer is eco-friendly and easy to install technology for domestic wastewater treatment with use of locally available material. ABGS purifier is decentralized approach of domestic wastewater treatment. Hence ABGS as an alternative solution to tackle over the problem of rural wastewater treatment.