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 371519
Title Waste sizing solution as co-substrate for anaerobic decolourisation of textile dyeing wastewaters
Author(s) Bisschops, I.; Santos, A.B. dos; Spanjers, H.
Source Water Science and Technology 52 (2005)1-2. - ISSN 0273-1223 - p. 397 - 403.
DOI https://doi.org/doi.org/10.2166/wst.2005.0545
Department(s) Sub-department of Environmental Technology
Publication type Refereed Article in a scientific journal
Publication year 2005
Keyword(s) redox mediator - azo-dye - water - effluent - technologies - kinetics - starch
Abstract Dyeing wastewaters and residual size are textile factory waste streams that can be treated anaerobically. For successful anaerobic treatment of dyeing effluents, a co-substrate has to be added because of their low concentration of easily biodegradable compounds. Starch-based size contains easily biodegradable material, but is too concentrated to be treated without difficulties. Although residual size makes up only a small volume, when mixed with the other textile wastewater streams it has a considerable impact on the overall organic load. Many textile dyes can pass through a conventional aerobic treatment plant without being degraded. Anaerobic pre-treatment of the dyeing wastewaters before discharge to the aerobic plant can solve this problem, as many dyestuffs are partly degradable under anaerobic conditions, rendering aerobically degradable products. In this study, the possibility of using waste size as a co-substrate for the anaerobic pre-treatment of dyeing wastewaters was investigated. It was found that waste size was applicable as co-substrate for the decolourisation of the two textile dyeing wastewaters studied. Adding a redox mediator could enhance decolourisation rates for both wastewaters
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