Partitioning and Degradation of Triclosan and Formation of Methyl-Triclosan in Water-Sediment Systems

被引：24

作者：

Huang, Xiaolong ^{[1
,2
]}

Wu, Chenxi ^{[1
]}

Xiong, Xiong ^{[1
,2
]}

Zhang, Kai ^{[1
,2
]}

Liu, Jiantong ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

来源：

WATER AIR AND SOIL POLLUTION | 2014年 / 225卷 / 09期

关键词：

Adsorption; Degradation; Triclosan; Methyl-triclosan; Water-sediment system; WIDELY USED BIOCIDE; SURFACE WATERS; WASTE-WATER; TREATMENT PLANTS; BACTERICIDE TRICLOSAN; MASS-SPECTROMETRY; TRICLOCARBAN; FATE; SORPTION; SOILS;

D O I：

10.1007/s11270-014-2099-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Adsorption and degradation processes of triclosan (TCS) were studied in the laboratory using field-collected sediments of different physicochemical properties. Batch equilibrium experiment indicated that adsorption isotherms were fitted well to both linear and Freundlich model with linear sorption coefficients (K-d) varied from 147 to 1,425 mL mu g(-1). The sediment with a higher organic carbon content and a lower pH value had the greatest adsorption capability. Degradation experiment showed that triclosan was relatively stable in water with calculated half-life values ranged from 89 to 161 days. No degradation in sterilized water suggested that the loss of triclosan was due to biological processes. Degradation was more rapid in water-sediment system than in water, and the calculated half-life value in water-sediment systems ranged from 32 to 62 days. Methylation of triclosan was observed in all studied sediments, but the amount of methyl-triclosan (M-TCS) accounted for less than 5 % of the degradated TCS.

引用

页数：10

共 42 条

[21] The effects of dredging on nitrogen balance in sediment-water microcosms and implications to dredging projects [J].

Jing, Lian Dong ;

Wu, Chen Xi ;

Liu, Jian Tong ;

Wang, Hua Guang ;

Ao, Hong Yi .

ECOLOGICAL ENGINEERING, 2013, 52 :167-174

[22] Sorption of estrogens, triclosan, and caffeine in a sandy loam and a silt loam soil [J].

Karnjanapiboonwong, Adcharee ;

Morse, Audra N. ;

Maul, Jonathan D. ;

Anderson, Todd A. .

JOURNAL OF SOILS AND SEDIMENTS, 2010, 10 (07) :1300-1307

[23] Factors regulating the accumulation and spatial distribution of the emerging contaminant triclosan in the sediments of an urbanized estuary: Greenwich Bay, Rhode Island, USA [J].

Katz, David R. ;

Cantwell, Mark G. ;

Sullivan, Julia C. ;

Perron, Monique M. ;

Burgess, Robert M. ;

Ho, Kay T. ;

Charpentier, Michael A. .

SCIENCE OF THE TOTAL ENVIRONMENT, 2013, 443 :123-133

[24]

Kookana R. S., 2011, WATER SCI TECHNOLOGY, V63

[25] Fate of triclosan and triclocarban in soil columns with and without biosolids surface application [J].

Kwon, Jeong-Wook ;

Xia, Kang .

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 2012, 31 (02) :262-269

[26] Aqueous photochemistry of triclosan:: Formation of 2,4-dichlorophenol, 2,8-dichlorodibenzo-p-dioxin, and oligomerization products [J].

Latch, DE ;

Packer, JL ;

Stender, BL ;

VanOverbeke, J ;

Arnold, WA ;

McNeill, K .

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 2005, 24 (03) :517-525

[27] SORPTION OF TRICLOSAN ONTO SEDIMENTS AND ITS DISTRIBUTION BEHAVIOR IN SEDIMENT-WATER-RHAMNOLIPID SYSTEMS [J].

Lin, Hui ;

Hu, Yong-you ;

Zhang, Xiao-yu ;

Guo, Yan-ping ;

Chen, Guan-ru .

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 2011, 30 (11) :2416-2422

[28] Occurrence and environmental behavior of the bactericide triclosan and its methyl derivative in surface waters and in wastewater [J].

Lindström, A ;

Buerge, IJ ;

Poiger, T ;

Bergqvist, PA ;

Müller, MD ;

Buser, HR .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2002, 36 (11) :2322-2329

[29]

Orvos DR, 2002, ENVIRON TOXICOL CHEM, V21, P1338, DOI 10.1897/1551-5028(2002)021<1338:ATOT>2.0.CO

[30]

← 1 2 3 4 5 →