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.

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Record number 343090
Title Trace metal dynamics in methanol fed anaerobic granular sludge bed reactors
Author(s) Zandvoort, M.H.
Source Wageningen University. Promotor(en): Gatze Lettinga, co-promotor(en): Piet Lens. - Wageningen : - ISBN 9085041465 - 208
Department(s) Sub-department of Environmental Technology
Microbiological Laboratory
Physical Chemistry and Colloid Science
Publication type Dissertation, internally prepared
Publication year 2005
Keyword(s) anaërobe behandeling - rioolslib - metalen - sporenelementen - milieuafbraak - anaerobic treatment - sewage sludge - metals - trace elements - environmental degradation
Categories Waste treatment
Abstract Trace metals are essential for anaerobic microorganisms, because they are present as cofactor in many of their enzymes. Therefore anaerobic wastewater treatment systems using these microorganisms to perform biological conversions are dependent on these metals for their (optimal) performance. In practice these metals are supplied to the influent when they are absent or insufficiently present in the wastewater. This supply is generally not very rational. However, such a rational metal supply is desired in order to reduce the costs, to minimize the introduction into the environment and to maximize the biological activity. To achieve this insight, in the trace metal dynamics in anaerobic granular sludge bed reactors is required. This thesis therefore focuses on the retention, accumulation and release of trace metals in anaerobic granular sludge and the factors affecting these processes. Further the impact of metal presence/absence and dosing on the anaerobic conversion of methanol was addressed
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