Fate and mass balance of triclosan and its degradation products: Comparison of three different types of wastewater treatments and aerobic/anaerobic sludge digestion

被引:53
作者
Tohidi, Fatemeh [1 ]
Cai, Zongwei [1 ,2 ]
机构
[1] Hong Kong Baptist Univ, Dept Chem, State Key Lab Environm & Biol Anal, Kowloon Tong, Hong Kong, Peoples R China
[2] Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
Triclosan; Sewage treatment plant; Mass balance; 2,4-Dicholorophenol; 2,8-Dichlorodibenzoparadioxin; Distribution coefficient; Biodegradation; SEWAGE-TREATMENT PLANTS; POLYCYCLIC AROMATIC-HYDROCARBONS; METHYL-TRICLOSAN; SURFACE WATERS; BIOSOLIDS; TOXICITY; EXPOSURE; REMOVAL; SOIL; METHYLTRICLOSAN;
D O I
10.1016/j.jhazmat.2016.04.034
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Triclosan (TCS) as an antimicrobial agent has been ubiquitously found in wastewater and sewage sludge. TCS may undergo transformation/degradation during wastewater treatment. Some of the resulted products such as 2,4-dichlorophenol (2,4-DCP), 2,8-dichlorodibenzoparadioxin (2,8-DCDD) and methyl triclosan (MTCS) are presumed toxic/persistent compounds. In this study, fate ofTCS and the probability of formation of important degradation products were investigated in three susceptible wastewater/sludge treatment practices. 24.1% and 27.2% of the loading TCS was adsorbed to the generated sludge, whereas up to 60% of the loading TCS was biotransformed. Up to 9.9% and 13.0% of TCS loss was attributed to the formation of 2,4-DCP and 2,8-DCDD in chlorination and UV disinfection, respectively. Anaerobic and aerobic sludge digestion processes eliminated up to 23.0% and 56.0% of TCS, respectively. About 7.4% of TCS in aerobic digestion was transformed to methyl triclosan (MTCS). Significant temporal variation of TCS was observed in primary sedimentations, except for chemically enhanced primary treatment that was suggested to be governed by chemical-forced sedimentation. Distribution coefficient (K-d) of TCS was directly correlated to the total organic carbon of the sludge (TOC). Moreover, strong correlation was observed between elimination efficiency in primary sedimentation and loading concentration. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:329 / 340
页数:12
相关论文
共 41 条
[1]   Triclosan in plasma and milk from Swedish nursing mothers and their exposure via personal care products [J].
Allmyr, Mats ;
Adolfsson-Erici, Margaretha ;
McLachlan, Michael S. ;
Sandborgh-Englund, Gunilla .
SCIENCE OF THE TOTAL ENVIRONMENT, 2006, 372 (01) :87-93
[2]   Occurrence of methyl triclosan, a transformation product of the bactericide triclosan, in fish from various lakes in Switzerland [J].
Balmer, ME ;
Poiger, T ;
Droz, C ;
Romanin, K ;
Bergqvist, PA ;
Müller, MD ;
Buser, HR .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2004, 38 (02) :390-395
[3]   Fate of triclosan and triclosan-methyl in sewage treatment plants and surface waters [J].
Bester, K .
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY, 2005, 49 (01) :9-17
[4]   Dioxin Photoproducts of Triclosan and Its Chlorinated Derivatives in Sediment Cores [J].
Buth, Jeffrey M. ;
Steen, Peter O. ;
Sueper, Charles ;
Blumentritt, Dylan ;
Vikesland, Peter J. ;
Arnold, William A. ;
McNeill, Kristopher .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2010, 44 (12) :4545-4551
[5]   AQUATIC PHOTOCHEMISTRY OF CHLORINATED TRICLOSAN DERIVATIVES: POTENTIAL SOURCE OF POLYCHLORODIBENZO-P-DIOXINS [J].
Buth, Jeffrey M. ;
Grandbois, Matthew ;
Vikesland, Peter J. ;
McNeill, Kristopher ;
Arnold, William A. .
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 2009, 28 (12) :2555-2563
[6]   Urinary concentrations of Triclosan in the US population: 2003-2004 [J].
Calafat, Antonia M. ;
Ye, Xiaoyun ;
Wong, Lee-Yang ;
Reidy, John A. ;
Needham, Larry L. .
ENVIRONMENTAL HEALTH PERSPECTIVES, 2008, 116 (03) :303-307
[7]   Biodegradation of triclosan and formation of methyl-triclosan in activated sludge under aerobic conditions [J].
Chen, Xijuan ;
Nielsen, Jeppe Lund ;
Furgal, Karolina ;
Liu, Yaling ;
Lolas, Ihab Bishara ;
Bester, Kai .
CHEMOSPHERE, 2011, 84 (04) :452-456
[8]   A novel resistance mechanism to triclosan that suggests horizontal gene transfer and demonstrates a potential selective pressure for reduced biocide susceptibility in clinical strains of Staphylococcus aureus [J].
Ciusa, Maria Laura ;
Furi, Leonardo ;
Knight, Daniel ;
Decorosi, Francesca ;
Fondi, Marco ;
Raggi, Carla ;
Rosado Coelho, Joana ;
Aragones, Luis ;
Moce, Laura ;
Visa, Pilar ;
Teresa Freitas, Ana ;
Baldassarri, Lucilla ;
Fani, Renato ;
Viti, Carlo ;
Orefici, Graziella ;
Luis Martinez, Jose ;
Morrissey, Ian ;
Oggioni, Marco Rinaldo .
INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS, 2012, 40 (03) :210-220
[9]   EFFECT OF TEMPERATURE CONTROL ON BIOLOGICAL WASTEWATER-TREATMENT PROCESSES [J].
COLLINS, CE ;
INCROPERA, FP ;
GRADY, CPL .
WATER RESEARCH, 1978, 12 (08) :547-554
[10]   Triclosan: environmental exposure, toxicity and mechanisms of action [J].
Dann, Andrea B. ;
Hontela, Alice .
JOURNAL OF APPLIED TOXICOLOGY, 2011, 31 (04) :285-311