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Operation of a novel anaerobic biofilter for treating food-processing wastewater

  • Session 5 Environmental Biotechnology
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Abstract

An anaerobic biofilter was operated with 4500 mg COD/L food-processing waste water, fed at 10 d of hydraulic retention time (HRT). In 45 d after seeding, established biofilms were dominated by dense layers ofMethanococcus-like andMethanothrix-like cells. The average COD and grease removal efficiencies were 85 and 53%, respectively, when the HRT was decreased stepwise to 1.5 d. Immobilized biofilms enabled the biofilter to be started up easily, to have stable treatment performance, and to recover rapidly from shock loadings and process failure.

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Authors and Affiliations

  1. Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong

    Hong Chua

  2. Ryoden Development Company, North Point, Hong Kong

    C. C. N. Cheng

Authors
  1. Hong Chua
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  2. C. C. N. Cheng
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Chua, H., Cheng, C.C.N. Operation of a novel anaerobic biofilter for treating food-processing wastewater. Appl Biochem Biotechnol 57, 837–843 (1996). https://doi.org/10.1007/BF02941763

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  • DOI: https://doi.org/10.1007/BF02941763

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