用于处理水中直链烷基苯磺酸盐的光化学与生物联合工艺
Combined photochemical and biological processes for the treatment of linear alkylbenzene sulfonate in water.
作者信息
Mehrvar Mehrab, Tabrizi Gelareh Bankian
机构信息
Department of Chemical Engineering, Ryerson [corrected] University, Toronto, Ontario, Canada.
出版信息
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2006;41(4):581-97. doi: 10.1080/10934520600572975.
In this study, the effects of photochemical pre-treatment (pilot-plant UV/H2O2 process) of linear alkylbenzene sulfonate (LAS) on its subsequent biological treatment were examined. It was observed that the photochemical pre-treatment of the LAS solution did not increase its biodegradability. Moreover, the effects of acclimated microorganisms on the biodegradability of the LAS solution were also studied. It was observed that the acclimated activated sludge increased the biodegradation of the LAS solution. However, due to the presence of some intermediates in the effluent of the photoreactor, the biodegradability of this effluent was less than the biodegradability of the untreated LAS solution with the same concentration of the LAS in the effluent of the photoreactor.
在本研究中，考察了线性烷基苯磺酸盐（LAS）的光化学预处理（中试规模的UV/H2O2工艺）对其后续生物处理的影响。观察到LAS溶液的光化学预处理并未提高其生物降解性。此外，还研究了驯化微生物对LAS溶液生物降解性的影响。观察到驯化的活性污泥提高了LAS溶液的生物降解率。然而，由于光反应器出水中存在一些中间产物，该出水的生物降解性低于光反应器出水中LAS浓度相同的未处理LAS溶液的生物降解性。
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