Priyanand Agale, Amol Saner, Rashmita Srinivasan and Parag Sadgir
Abstract
This study illustrated that the Aerobic Brickbat Grit Sand (ABGS) Purifier system is an ideal practice for decentralized wastewater treatment. Decentralized wastewater treatment is the only solution to reduce the environmental burden as well as to tackle the scarcity of water in developing and undeveloped countries. In the developing countries, treatment of domestic wastewater is not a primary objective of development because requirement of huge funds for collection of wastewater and to construct centralized treatment facilities as well as need of technical experts for managing the treatment plant. Providing simple, cost effective and eco-friendly wastewater treatment is a challenge in many parts of the world. Decentralized wastewater treatment is the solution to reduce the environmental burden as well as to tackle the scarcity of water in developing and undeveloped countries. In this situation Aerobic Brickbat Grit Sand (ABGS) purifier serves as an alternative option to treat the domestic wastewater in the decentralized way. The present study emphasizes on the approach of ABGS for decentralized wastewater treatment. Working model of ABGS purifier was setup for the treatment of grey water at Government College of Engineering, Aurangabad, M.S., India. The variations in physicochemical parameter of the influent and effluent show pH (7.2ñ0.1 to 7.6ñ0.1), BOD (189ñ33 to 11ñ1 mg/l), COD (354ñ47 to 26ñ5 mg/l), TSS (92ñ6 to 13ñ3 mg/l), TDS (393ñ51 to 430ñ43 mg/l), Total phosphorus( 30ñ3 to 6ñ0.6 mg/l), Nitrate (5ñ1 to 0.5ñ0.1 mg/l), Ammonia(0.6ñ0.2 to 0.04ñ0.1 mg /l), Sulphate (43ñ1 to 14ñ3 mg/l), Chloride (86ñ10 to 78ñ7 mg/l), Oil and grease (5.1ñ0.3 to 1.9ñ0.5 mg/l). ABGS purifier is eco-friendly and cost effective domestic wastewater treatment system constructed with use of locally available material.