Effects of dye additives on the ozonation process and oxidation by-products: a comparative study using hydrolyzed CI Reactive Red 120

	Effects of dye additives on the ozonation process and oxidation by-products: a comparative study using hydrolyzed CI Reactive Red 120
	Zhang, FF ; Yediler, A ; Liang, XM ; Kettrup, A
刊名	dyes and pigments
	2004
卷号	60 期号:1 页码:1-7
关键词	purification ozonation CI Reactive Red 120 azo dye textile dyeing and finishing industry
英文摘要	decolorization of azo reactive dyes by ozone has been described by several authors. however, the efficiency of ozonation and the by-products produced by dye additives/impurities such as synthetic precursors, by-products, salts and dispersing agents in commercial azo dyes during the oxidative treatment have not been reported. to investigate the effects of such impurities on the ozonation process and on the formation of oxidation by-products, a commercially available azo reactive dye c.i. reactive red 120 was chosen as a model compound. experiments were conducted in aqueous solutions of hydrolyzed c.i. reactive red 120 (200 mg/l) either with or without purification. treatment efficiencies of purified and unpurified dye were evaluated in terms of cod, bod28, absorbance and initial decolorization rates. additionally, organic and inorganic anions were analyzed by hpic. after 28 days of incubation the bod28/ cod ratio increased from 0.22 to 0.48 and from 0.05 to 0.26 for purified and unpurified c.i. reactive red 120, respectively, indicating an enhancement of biodegradable compounds in the ozonated solutions. the results also illustrate that the dye additives/impurities in commercial dyes affect the microbial activity as well as the biodegradability. it is therefore recommended that dyes should be purified before ozonation, if detailed information on the degradation processes and the resulting oxidation by-products are required. (c) 2003 elsevier ltd. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; engineering, chemical ; materials science, textiles
研究领域[WOS]	chemistry ; engineering ; materials science
关键词[WOS]	waste-water ; azo-dyes ; semibatch reactor ; ozone ; degradation ; biodegradability ; decolorization ; wastewaters ; effluents ; dyestuffs
收录类别	SCI
语种	英语
WOS记录号	WOS:000185982700001
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/138429]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.GSF, Natl Res Ctr Environm & Hlth, Inst Ecol Chem, D-85758 Neuherberg, Germany 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116011, Peoples R China 3.Tech Univ Munich, Chair Ecol Chem & Environm Analyt Chem, D-85350 Freising Weihenstephan, Germany
推荐引用方式 GB/T 7714	Zhang, FF,Yediler, A,Liang, XM,et al. Effects of dye additives on the ozonation process and oxidation by-products: a comparative study using hydrolyzed CI Reactive Red 120[J]. dyes and pigments,2004,60(1):1-7.
APA	Zhang, FF,Yediler, A,Liang, XM,&Kettrup, A.(2004).Effects of dye additives on the ozonation process and oxidation by-products: a comparative study using hydrolyzed CI Reactive Red 120.dyes and pigments,60(1),1-7.
MLA	Zhang, FF,et al."Effects of dye additives on the ozonation process and oxidation by-products: a comparative study using hydrolyzed CI Reactive Red 120".dyes and pigments 60.1(2004):1-7.