Industrial Effluent Waste Management & Cost Analysis

The Common Effluent Treatment Plants (CETP) minimizes the pollution from industrial effluents. This
plant monitors the reduction of physical and biochemical parameters such as total suspended solids
(TSS), biological oxygen demand (BOD), chemical oxygen demand (COD), dissolved oxygen (DO),
heavy metals etc. The Sequential Batch Reactor (SBR), a variation of the ASP, combines all the
treatment steps and processes into a single basin. An improved SBR process is Attached Growth
Batch Reactor (AGBR) technology that provisions for microbial growth on the settled media/bed to
treat the industrial wastewater using enzymes. This technology, when used to treat polluted river
water, achieved about 90% of reduction of wastewater parameters. In all the above methods the
sludge settlement occurs. It contains biodegradable carbon content which could be used as feed for
Biogas Digesters to produce Methane. The present study aims at examining the benefits of combining
AGBR and Biogas Digester to implement the 3Rs (Reduce, Recycle, Reuse). This study highlights the
detrimental effect of untreated industrial effluent discharge, the mandatory policies of the pollution
control board to set up common effluent treatment plants, the advantage of AGBR over the
conventional SBR set- up and the importance of biogas digester in biodegrading the sludge produced
during industrial effluent treatment.