流出物
过氧化氢
臭氧
化学
制浆造纸工业
活性炭
环境化学
废物管理
环境工程
环境科学
有机化学
工程类
吸附
作者
Gunnar O. Sigge,T.J. Britz,Pieter Fourie,C.A. Barnardt,R. Strydom
标识
DOI:10.2166/wst.2001.0254
摘要
UASB treatment of cannery effluents was shown to be feasible. However, the treated effluent still does not allow direct discharge to a water system and a further form of post-treatment is necessary to reduce the COD to lower than the legal limit of 75 mg/l. The use of ozone, hydrogen peroxide and granular activated carbon were used singly or in combination to assess the effectiveness as post-treatment options for the UASB treated alkaline fruit cannery effluent. Colour reduction in the effluent ranged from 15% to 92% and COD reductions of 26-91% were achieved. Combinations of ozone and hydrogen peroxide gave better results than either oxidant singly. The best results were achieved by combining ozone, hydrogen peroxide and granular activated carbon, and COD levels were reduced to levels sufficiently below the 75 mg/l limit.
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