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    題名: Decolorization of textile wastewater by photo-fenton oxidation technology
    作者: Kang. Shyh-Fang;Liao, Chih-Hsiang;Po, Shei-Tue
    貢獻者: 淡江大學水資源及環境工程學系
    關鍵詞: decolorization;hydroxyl radical;photo-fenton;textile wastewater;color
    日期: 2000-10-01
    上傳時間: 2010-03-26 16:36:29 (UTC+8)
    出版者: Elsevier
    摘要: This paper describes the use of photo-fenton process for color removal from textile wastewater stream. The wastewater sample to be treated was simulated by using colorless polyvinyl alcohol (PVA) and reactive dyestuff of R94H. As a result, the hydroxyl radical (HOFull-size image (<1 K)) oxidation can effectively remove color, but the chemical oxygen demand (COD) was removed in a slight degree. The color removal is markedly related with the amount of HOFull-size image (<1 K) formed. The optimum pH for both the OHFull-size image (<1 K) formation and color removal occurs at pH 3–5. Up to 96% of color can be removed within 30 min under the studied conditions. Due to the photoreduction of ferric ion into ferrous ion, color resurgence was observed after 30 min. The ferrous dosage and UV power affect the color removal in a positive way, however, the marginal benefit is less significant in the higher range of both. PVA as the major background COD of a textile wastewater stream inhibits the color removal insignificantly as its concentration increases.
    關聯: Chemosphere 41(8), pp.1287-1294
    DOI: 10.1016/S0045-6535(99)00524-X
    顯示於類別:[水資源及環境工程學系暨研究所] 期刊論文


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