Treatment of dairy wastewater using anaerobic and solar photocatalytic methods
- Authors
- Banu, JR[Banu, J. Rajesh]; Anandan, S[Anandan, S.]; Kaliappan, S[Kaliappan, S.]; Yeom, IT[Yeom, Ick-Tae]
- Issue Date
- 2008
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- dairy wastewater; anaerobic treatment; HUASB; solar photocatalytic treatment; TiO2
- Citation
- SOLAR ENERGY, v.82, no.9, pp.812 - 819
- Indexed
- SCIE
SCOPUS
- Journal Title
- SOLAR ENERGY
- Volume
- 82
- Number
- 9
- Start Page
- 812
- End Page
- 819
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/83214
- DOI
- 10.1016/j.solener.2008.02.015
- ISSN
- 0038-092X
- Abstract
- The present study was aimed to treat the dairy wastewater by using anaerobic and solar photocatalytic oxidation methods. The anaerobic treatment was carried out in a laboratory scale hybrid upflow anaerobic sludge blanket reactor (HUASB) with a working volume of 5.9 L. It was operated at organic loading rate (OLR) varying from 8 to 20 kg COD/m(3) day for a period of 110 days. The maximum loading rate of the anaerobic reactor was found to be 19.2 kg COD/m(3) day and the corresponding chemical oxygen demand (COD) removal at this OLR was 84%. The anaerobically treated wastewater at an OLR of 19.2 kg COD/m(3) day was subjected to secondary solar photocatalytic oxidation treatment. The optimum pH and catalyst loading for the solar photochemical oxidation was found to be 5 and 300 mg/L, respectively. The secondary solar photocatalytic oxidation using TiO2 removed 62% of the COD from primary anaerobic treatment. Integration of anaerobic and solar photocatalytic treatment resulted in 95% removal of COD from the dairy wastewater. The findings suggest that anaerobic treatment followed by solar photo catalytic oxidation would be a promising alternative for the treatment of dairy wastewater. (c) 2008 Published by Elsevier Ltd.
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Collections - Graduate School of Water Resources > Department of Water Resources > 1. Journal Articles
- Graduate School of Water Resources > ETC > 1. Journal Articles
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