Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 400306
Title Effect of pH and VFA on hydrolysis of organic solid waste
Author(s) Veeken, A.H.M.; Kalyuzhnyi, S.; Scharff, H.; Hamelers, H.V.M.
Source Journal of Environmental Engineering 126 (2000)12. - ISSN 0733-9372 - p. 1076 - 1081.
DOI http://dx.doi.org/10.1061/(ASCE)0733-9372(2000)126:12(1076)
Department(s) Sub-department of Environmental Technology
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2000
Keyword(s) 2-phase anaerobic-digestion - degradation - kinetics
Abstract The anaerobic hydrolysis rate of organic solid waste was studied at fixed volatile fatty acid (VFA) concentrations ranging from 3 to 30 g COD/L and fixed pH values between 5 and 7. For separate control of both VFA and pH, a special completely mixed reactor was designed. In this way, it was possible to distinguish between the inhibitory effects of pH, total VFA, and undissociated VFA on anaerobic hydrolysis. It was shown that hydrolysis of the organic solid waste followed first-order kinetics. Using a statistical analysis, it was found that the hydrolysis rate constant was pH dependent but was not related to the total VFA and undissociated VFA concentrations
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