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Use of Manganese Compounds and Microbial Fuel Cells in Wastewater Treatment.
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Water, Sewage and Waste technology.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

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. Now it is newly realized possibilities 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 and investigated during the main experimental part. 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 of the research 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 concurrent reacted with magnesium and calcium compounds when treating reject wastewater from digester at Hammarby Sjöstadsverk. The other part was studied 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 from UASB.

Place, publisher, year, edition, pages
2011. , 43 p.
Series
TRITA-LWR Degree Project, ISSN 1651-064X ; LWR-EX-11-16
Keyword [en]
Digested Sludge, Manganese Compounds, Microbial Fuel Cell, Potassium Permanganate
National Category
Water Engineering
Identifiers
URN: urn:nbn:se:kth:diva-96295OAI: oai:DiVA.org:kth-96295DiVA: diva2:530206
Uppsok
Technology
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Available from: 2012-06-01 Created: 2012-06-01 Last updated: 2012-06-01Bibliographically approved

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