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Treatment of high e...
Treatment of high ethanol concentration wastewater by biological sand filters : Enhanced COD removal and bacterial community dynamics
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- Rodriguez-Caballero, Alina (författare)
- Mälardalens högskola,Akademin för hållbar samhälls- och teknikutveckling
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- Ramond, J. -B (författare)
- Univ Western Cape, Inst Microbial Biotechnol & Metagen, ZA-7535 Bellville, South Africa
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- Welz, P. J. (författare)
- Cape Peninsula Univ Technol, Biocatalysis & Tech Biol Res Grp, ZA-7535 Bellville, South Africa
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- Cowan, D. A. (författare)
- Univ Western Cape, Inst Microbial Biotechnol & Metagen, ZA-7535 Bellville, South Africa
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- Odlare, Monica (författare)
- Mälardalens högskola,Akademin för hållbar samhälls- och teknikutveckling
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- Burton, S. G. (författare)
- Cape Peninsula Univ Technol, Biocatalysis & Tech Biol Res Grp, ZA-7535 Bellville, South Africa
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(creator_code:org_t)
- Elsevier BV, 2012
- 2012
- Engelska.
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Ingår i: Journal of Environmental Management. - : Elsevier BV. - 0301-4797 .- 1095-8630. ; 109, s. 54-60
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Winery wastewater is characterized by its high chemical oxygen demand (COD), seasonal occurrence and variable composition, including periodic high ethanol concentrations. In addition, winery wastewater may contain insufficient inorganic nutrients for optimal biodegradation of organic constituents. Two pilot-scale biological sand filters (BSFs) were used to treat artificial wastewater: the first was amended with ethanol and the second with ethanol, inorganic nitrogen (N) and phosphorus (P). A number of biochemical parameters involved in the removal of pollutants through BSF systems were monitored, including effluent chemistry and bacterial community structures. The nutrient supplemented BSF showed efficient COD, N and P removal. Comparison of the COD removal efficiencies of the two BSFs showed that N and P addition enhanced COD removal efficiency by up to 16%. Molecular fingerprinting of BSF sediment samples using denaturing gradient gel electrophoresis (DGGE) showed that amendment with high concentrations of ethanol destabilized the microbial community structure, but that nutrient supplementation countered this effect.
Nyckelord
- Bacterial community structures
- Chemical oxygen demand
- Biological sand filters
- Ethanol
- Nutrients
- Wastewater
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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