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Cellulase Hydrolysis of Unsorted MSW

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Abstract

A recent development in waste management and engineering has shown that the cellulase can be used for the liquefaction of organic fractions in household waste. The focus of this study was to optimize the enzyme hydrolysis of thermally treated municipal solid waste (MSW) by the addition of surfactant. Concurrently, the enzyme performance was analysed on pure cellulose in a solution of MSW wastewater. Results showed no effect of surfactant addition to the hydrolysis media as measured by viscosity and particle size distribution. MSW treatment wastewater was found to contain a high amount of calcium, potassium, sodium, chloride and others that may affect cellulolytic enzymes. Cellulase performance showed no effect of adding the metal ion-chelating agent EDTA to the solution. The cellulases were stable, tolerated and functioned in the presence of several contaminants.

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Acknowledgements

The Danish Energy Authority and DONG Energy A/S, Denmark financially supported the project as PSO project no. 7,335 and project no. T015815, respectively. Novozymes A/S, Bagsværd, Denmark is gratefully thanked for the enzymes.

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Authors and Affiliations

  1. Forest and Landscape, University of Copenhagen, Rolighedsvej 23, 1958, Frederiksberg, Denmark

    Jacob Wagner Jensen, Claus Felby & Henning Jørgensen

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  1. Jacob Wagner Jensen
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  2. Claus Felby
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  3. Henning Jørgensen
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Correspondence to Jacob Wagner Jensen.

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Jensen, J.W., Felby, C. & Jørgensen, H. Cellulase Hydrolysis of Unsorted MSW. Appl Biochem Biotechnol 165, 1799–1811 (2011). https://doi.org/10.1007/s12010-011-9396-7

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  • DOI: https://doi.org/10.1007/s12010-011-9396-7

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