DOI: 10.5176/2251-2489_BioTech15.15
Authors: G.S.RAMPRADHEEP, R.SARANYA, M.SHAMEEM NISHA, V.S.SUMA, S.SUGIRTHI, P.SHYAMALA
Abstract: Wastewater treatment processes are designed to achieve improvements in the quality of the wastewater. Manganese compounds have a high potential for treating wastewater, both for utilizing its oxidation, flocculation ability and catalyst ability in anaerobic nitrification. The promising use of manganese compounds such as permanganate and manganese dioxide is regarded as an` effective method of treating organic compounds in wastewater from municipal and industrial wastewater. It is to combine manganese compounds with Microbial Fuel Cell technology. Aiming at reusing the biomass in anaerobic digested sludge for degrading organic pollutants and simultaneously recovering electric energy, Single-chamber Microbial Fuel Cell (SMFC) system was developed. Considering the electricity generation rate and characteristics of cathode, MnO2 was used as the reactant on the cathode electrode; meanwhile, the substrate types in anode compartment also were investigated and then extra sodium acetate was added to investigate the power generation performance. Two parts were carried out during the whole project. The chemical treatment part was mainly designed to
find out the best dosage of KMnO4 in flocculation when treating reject wastewater from digester. The other part was to see whether it is possible to improve electricity generation by degrading organic pollutants when MnO2 was used as a cathodic reactant in sediment microbial fuel cell which consisted of anaerobic digested sludge.
Keywords: Digested sludge ,Microbial fuel cell, Manganese compounds
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