Anaerobic Treatment of a Biologically Inhibitory Wastewater

A sequence of unit processes consisting of a berl-saddle-packed-bed anaerobic reactor and an expanded-bed, granular activated carbon fluidized-bed anaerobic reactor was used for the treatment of a synthetically prepared coal conversion wastewater. The wastewater, with high concentrations of inhibito...

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Bibliographic Details
Published in:Journal - Water Pollution Control Federation 1988-01, Vol.60 (1), p.86-92
Main Authors: Fox, Peter, Suidan, Makram T., Pfeffer, John T.
Format: Article
Language:English
Subjects:
Activated carbon
Adsorption
Applied sciences
Biodegradation
Biological and medical sciences
Biological treatment of waters
Biotechnology
Chemical oxygen demand
Environment and pollution
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
General purification processes
Industrial applications and implications. Economical aspects
Methane
Methane production
Phenols
Pollution
Wastewater
Wastewater treatment
Wastewaters
Water pollution
Water treatment and pollution
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Summary:A sequence of unit processes consisting of a berl-saddle-packed-bed anaerobic reactor and an expanded-bed, granular activated carbon fluidized-bed anaerobic reactor was used for the treatment of a synthetically prepared coal conversion wastewater. The wastewater, with high concentrations of inhibitory compounds, was fed at three different chemical oxygen demand (COD) concentrations: 1513, 3027, and 7567 mg/L. Excellent removal of organic matter combined with high conversion of COD to methane was achieved. Negligible removal of COD was observed in the packed-bed reactor whereas the expanded-bed GAC reactor removed the majority of the organics in the wastewater. Ortho- and meta-cresol resisted biodegradation and their toxicity to the anaerobic culture in the GAC reactor was overcome by partial replacement of the granular activated carbon medium in that reactor.
ISSN:0043-1303
2327-7467