Anaerobic Fluidized Bed and Anaerobic Filter/Contact Stabilization Application for Heat Treatment Liquor

Two anaerobic processes for pretreatment of the heat treatment liquor were pilot tested: the anaerobic fluidized bed process and the AF/CS (anaerobic filter/contact stabilization) process. The performance of the pilot systems was evaluated at several loading rates ranging between 2600 and 45 000 g s...

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Bibliographic Details
Published in:Journal - Water Pollution Control Federation 1987-12, Vol.59 (12), p.1050-1058
Main Authors: Pugh, Lucy B., Kang, Shin J., Spangler, James L.
Format: Article
Language:English
Subjects:
Applied sciences
Biomass
Chemical oxygen demand
Exact sciences and technology
Heat treatment
Liquids
Loading rate
Pollution
Pumps
Sewerage works: sewers, sewage treatment plants, outfalls
Solids
Start up firms
Storage tanks
Volume
Water treatment and pollution
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Summary:Two anaerobic processes for pretreatment of the heat treatment liquor were pilot tested: the anaerobic fluidized bed process and the AF/CS (anaerobic filter/contact stabilization) process. The performance of the pilot systems was evaluated at several loading rates ranging between 2600 and 45 000 g soluble ${\rm COD}/{\rm m}^{3}$ • day. The anaerobic fluidized bed system, loaded at a much higher rate than the AF/CS system, exhibited consistently high COD removal efficiency at high organic loadings. Average removal efficiencies for soluble COD ranged between 60 and 70% for both systems. Gas production averaged 0.4 liters per gram of COD removed, with a methane content between 76 and 79%. Based on the superior performance of the fluidized bed system, a full-scale system was designed with construction scheduled for completion in late 1987.
ISSN:0043-1303
2327-7467