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Enzymatic pre-hydrolysis and anaerobic degradation of wastewaters with high fat contents

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Abstract

Dairy wastewaters containing elevated fat and grease levels (868 mg l−1) were treated in an upflow anaerobic sludge blanket reactor (UASB) and resulted in effluents of high turbidity (757 nephelometric turbidity units), volatile suspended solids up to 944 mg l−1 and COD removal below 50%. When the same dairy wastewater was pre-treated with 0.1% (w/v) of fermented babassu cake containing Penicillium restrictum lipases, turbidity and volatile suspended solids were decreased by 75% and 90%, respectively, and COD removal was as high as 90%.

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Authors and Affiliations

  1. Escola de Química, Brazil

    M.C. Cammarota

  2. Coordenação de Programas de Pós-Graduação em Engenharia, Brazil

    G.A. Teixeira

  3. Instituto de Química/Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil

    D.M.G. Freire

Authors
  1. M.C. Cammarota
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  2. G.A. Teixeira
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  3. D.M.G. Freire
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Cammarota, M., Teixeira, G. & Freire, D. Enzymatic pre-hydrolysis and anaerobic degradation of wastewaters with high fat contents. Biotechnology Letters 23, 1591–1595 (2001). https://doi.org/10.1023/A:1011973428489

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  • DOI: https://doi.org/10.1023/A:1011973428489

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