Introduction of a Degassing Membrane Technology into Anaerobic Wastewater Treatment

The effectiveness of degasification using a degassing membrane to improve chemical oxygen demand (COD) removal efficiency was investigated using a bench-scale upflow anaerobic sludge blanket (UASB) reactor. Vacuum degasification was able to transfer dissolved gas in the bulk liquid of the UASB react...

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Bibliographic Details
Published in:Water environment research 2013-05, Vol.85 (5), p.387-390
Main Authors: Bandara, W. M. K. R. T. W., Ikeda, M., Satoh, H., Sasakawa, M., Nakahara, Y., Takahashi, M., Okabe, S.
Format: Article
Language:English
Subjects:
anaerobic digestion
Anaerobiosis
Applied sciences
Biological and medical sciences
Bioreactors
Biotechnology
Chemical compounds
Chemical oxygen demand
degassing membrane
dissolved gas
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
General purification processes
Hydrogen Peroxide
Hydrogen-Ion Concentration
Membranes, Artificial
Methods. Procedures. Technologies
Others
Oxygen - chemistry
Oxygen - metabolism
Phenols - chemistry
Pollution
Thermodynamics
upflow anaerobic sludge blanket
Vacuum technology
Various methods and equipments
Waste Disposal, Fluid - methods
Wastewaters
Water - chemistry
Water Pollutants, Chemical
Water Purification
Water treatment
Water treatment and pollution
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Summary:The effectiveness of degasification using a degassing membrane to improve chemical oxygen demand (COD) removal efficiency was investigated using a bench-scale upflow anaerobic sludge blanket (UASB) reactor. Vacuum degasification was able to transfer dissolved gas in the bulk liquid of the UASB reactor inside the membrane. Such a process might provide thermodynamically favorable conditions for the degradation of organic compounds. The COD-removal efficiency improved from 83% during normal operation to 90% during the degassing operation.
ISSN:1061-4303
1554-7531
DOI:10.2175/106143013X13596524516707