Brewery and liquid manure wastewaters as potential feedstocks for microbial fuel cells: a performance study.
This work aims at the comparison of the electrical and chemical performance of microbial fuel cells (MFCs) fed with several types of brewery and manure industrial wastewaters. Experiments were conducted in a single-cell MFC with the cathode exposed to air operated in batch and fed-batch modes. In fed-batch mode, after 4 days of operation, a standard MFC was refilled with crude wastewater to regenerate the biofilm and recreate initial feeding conditions. Brewery wastewater (CV1) mixed with pig-farm liquid manure (PU sample) gave the highest voltage (199.8 mV) and power density (340 mW/m3) outputs than non-mixed brewery waste water. Also, coulombic efficiency is much larger in the mixture (11%) than in the others (2-3%). However, in terms of chemical oxygen demand removal, the performance showed to be poorer (53%) for the mixed sample than in the pure brewery sample (93%). Fed-batch operation showed to be a good alternate for quasi-continuous operation, with equivalent electrical and chemical yields as compared with normal batchwise operation.
['Angosto|J M|JM|', 'Fernández-López|J A|JA|', 'Godínez|C|C|']
D001674:Bioelectric Energy Sources D003246:Conservation of Energy Resources D004566:Electrodes D004735:Energy Transfer D004867:Equipment Design D019544:Equipment Failure Analysis D005240:Feasibility Studies D007220:Industrial Waste D008372:Manure D012996:Solutions D014865:Waste Disposal, Fluid D062065:Waste Water D014873:Water Pollutants D018508:Water Purification
microbial fuel cell manure industrial wastewater brewery wastewater bioconversion wastewater treatment