A photosynthetic bacteria pond system was applied to the treatment of food industrial wastewater and recovery of carbon in the form of purple non-sulphur bacterial (PnSB) cell. The effect of infra-red transmitting filter on the selection of microbial groups in the system was investigated. It was found that more than 90% of organic removal could be achieved when the system was operated at HRT of 3 to 10 days, even though some fluctuations were observed at lower HRT. Infra-red transmitting filter could suppress the growth of microalgae in the system and allow the purple non-sulphur to grow in the system. Nevertheless, they could be outgrown by sulphate-reducing bacteria at higher organic loading rates. The growth of purple sulphur bacteria associated with sulphate reducing bacteria was also observed. ORP is a crucial operating factor to control the system under micro-anaerobic conditions which is preferred to the growth of purple non-sulphur bacteria.
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Research Article|
October 01 2007
Photosynthetic bacteria pond system with infra-red transmitting filter for the treatment and recovery of organic carbon from industrial wastewater
C. Chiemchaisri;
*Department of Environmental Engineering, Kasetsart University, 50 Phaholyothin Road, Chatuchak, Bangkok, 10900, Thailand (E-mail: fengccc@ku.ac.th)
E-mail: fengccc@ku.ac.th
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L. Jaitrong;
L. Jaitrong
*Department of Environmental Engineering, Kasetsart University, 50 Phaholyothin Road, Chatuchak, Bangkok, 10900, Thailand (E-mail: fengccc@ku.ac.th)
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R. Honda;
R. Honda
**Environmental Science Center, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113, Japan (E-mail: yamamoto@esc.u-tokyo.ac.jp)
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K. Fukushi;
K. Fukushi
**Environmental Science Center, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113, Japan (E-mail: yamamoto@esc.u-tokyo.ac.jp)
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K. Yamamoto
K. Yamamoto
**Environmental Science Center, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113, Japan (E-mail: yamamoto@esc.u-tokyo.ac.jp)
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Water Sci Technol (2007) 56 (7): 109–116.
Citation
C. Chiemchaisri, L. Jaitrong, R. Honda, K. Fukushi, K. Yamamoto; Photosynthetic bacteria pond system with infra-red transmitting filter for the treatment and recovery of organic carbon from industrial wastewater. Water Sci Technol 1 October 2007; 56 (7): 109–116. doi: https://doi.org/10.2166/wst.2007.686
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