Journal of East China Normal University(Natural Science) >

2018 , Vol. 2018 >Issue 6: 81 - 87

DOI: https://doi.org/10.3969/j.issn.1000-5641.2018.06.010

Biodegration of LAS in an urban malodorous river

  • YIN Chao ,
  • HUANG Min-sheng ,
  • HE Yan ,
  • CUI He ,
  • WANG Di-fang ,
  • ZHANG Ting-yue ,
  • XIAO Bing
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  • 1. School of Ecological and Environmental Science, East China Normal University, Shanghai 200241, China;
    2. Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, East China Normal University, 200241, China

Received date: 2018-07-13

  Online published: 2018-12-01

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Abstract

Biodegradation of the anion-surfactant LAS in the urban malodorous water of Liwan River in Putuo District (Shanghai) was studied by "river-die away"under different conditions. In particular, the influences of temperature, pH, initial concentration of LAS, nutrients (C6H12O6) and aeration conditions on the biodegradation of LAS were investigated. The study showed that when the temperature increased from 10℃ to 30℃, the half-life of LAS decreased from 6.5 days to 2.5 days. The biodegration of surfactant at pH=8.5±0.2 was slightly better than that at pH=7.5±0.2 and pH=9.5±0.2. With greater initial concentration, the half-life of LAS increased from 2.9 days to 3.4 days. C6H12O6 inhibited degradation of LAS, but the degradation of LAS accelerated under continuous aeration conditions.

Key words： LAS; urban malodorous river; biodegration

Cite this article

YIN Chao , HUANG Min-sheng , HE Yan , CUI He , WANG Di-fang , ZHANG Ting-yue , XIAO Bing . Biodegration of LAS in an urban malodorous river[J]. Journal of East China Normal University(Natural Science), 2018 , 2018(6) : 81 -87 . DOI: 10.3969/j.issn.1000-5641.2018.06.010

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