Abstract
The Tannery Industry produces a massive amount of toxic effluent which needs to be treated properly. It contains high organic matter, suspended solids, and chromium which in turn can cause environmental problems. This study provides valuable insights into the potential of Moving Bed Biofilm Reactor (MBBR) and Activated Sludge Process (ASP) for treating tannery wastewater. It also highlights the importance of proper wastewater treatment in the tannery industry to mitigate environmental impacts. The batch analysis was conducted to find out removal efficiencies for Total Dissolved Solids (TDS), Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD5), Sulphide (S2-), Ammonia (NH4), Nitrate (NO3). Kaldness K1 bio-media was used with a 50% filling ratio in the laboratory setup of the MBBR and aeration was provided to both setups. The results for the MBBR system showed chromium removal of 95.4% with the obtained reduction of biochemical oxygen demand (BOD), chemical oxygen demand (COD), sulfide (S2-), and nitrate (NO3) 93.5%, 88.8%, 93.7%, and 97.09%, respectively. It indicates significant removal efficiencies for various pollutants in the tannery wastewater, suggesting the effectiveness of the MBBR system.
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