Decolorization of textile wastewater by photo-fenton oxidation technology.
作者： Shyh-Fang Kang , Chih-Hsiang Liao , Shei-Tue Po
DOI: 10.1016/S0045-6535(99)00524-X
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摘要: Abstract This paper describes the use of photo-fenton process for color removal from textile wastewater stream. The sample to be treated was simulated by using colorless polyvinyl alcohol (PVA) and reactive dyestuff R94H. As a result, hydroxyl radical (HO ) oxidation can effectively remove color, but chemical oxygen demand (COD) removed in slight degree. is markedly related with amount HO formed. optimum pH both OH formation occurs at 3–5. Up 96% within 30 min under studied conditions. Due photoreduction ferric ion into ferrous ion, resurgence observed after min. dosage UV power affect positive way, however, marginal benefit less significant higher range both. PVA as major background COD stream inhibits insignificantly its concentration increases.
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