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 344644
Title Thermophillic treatment by anaerobic granular sludge as an effective approach to accelerate the electron transfer and improve the reductive decolorization of azo dyes in bioreactors
Author(s) Santos, A.B. dos; Traverse, J.; Cervantes, F.J.; Lier, J.B. van
Source Water Science and Technology 52 (2005)1-2. - ISSN 0273-1223 - p. 363 - 369.
DOI https://doi.org/10.2166/wst.2005.0540
Department(s) Sub-department of Environmental Technology
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2005
Keyword(s) ontkleuring - temperatuur - textielindustrie - kleurstoffen (dyes) - azoverbindingen - afvalwaterbehandeling - anaërobe behandeling - slib - decolorization - temperature - textile industry - dyes - azo compounds - waste water treatment - anaerobic treatment - sludges - redox mediators - reactor - transformation - aqds
Categories Waste Water Treatment
Abstract The effects of temperature, hydraulic retention time (HRT), and the redox mediator, thraquinone- 2,6-disulfonate (AQDS), on electron transfer and subsequent reductive decolorization of dyes rom textile wastewater was assessed in mesophilic and thermophilic anaerobic bioreactors. The results clearly show that compared to mesophilic anaerobic treatment, thermophilic treatment at 55 8C is an effective approach for increasing the electron transfer capacity in bioreactors, and thus improving the decolorization rates. At an HRT of 2.5 h and in the absence of AQDS, the color removal was 5.3-fold higher at 55 8C compared to 30 8C. Furthermore, similar decolorizations were found at 55 8C between the AQDS-free and AQDSsupplemented reactors, whereas a significant difference (up to 3.6-fold) on dye reduction occurred at 30 8C. Keywords Azo dye; color removal; electron transfer; anaerobic treatment; mesophilic; thermophilic
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