Triclosan in a sewage treatment process—balances and monitoring data

Bester, Kai

doi:10.1016/s0043-1354(03)00335-x

Cited by 255 publications

(187 citation statements)

References 11 publications

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“…Previous research indicated that discharges of effluent and land application of biosolids from municipal wastewater treatment plants (WWTPs) were two major pathways introducing TCS into the environment (Dann and Hontela 2011). Mass balance study suggested that 30 % of TCS entering the WWTPs was adsorbed to the sludge and persisted in the sludge, while only 5 % of TCS was presented in the effluent (Bester 2003). Despite the removal rate reached 86 to 96 % with different treatment process in WWTPs (Bester 2005;Singer et al 2002), TCS was still detected in the environment worldwide, especially in waters receiving effluent discharge (Chau et al 2008;Kookana et al 2011).…”

Section: Introductionmentioning

confidence: 99%

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

Huang

Xiong

et al. 2014

Water Air Soil Pollut

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Adsorption and degradation processes of triclosan (TCS) were studied in the laboratory using fieldcollected 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 μg. 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 watersediment 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.

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Section: Introductionmentioning

confidence: 99%

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

Huang

Xiong

et al. 2014

Water Air Soil Pollut

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“…Similarly, Miège et al 26) reported ＞ 80% removal rates of triclosan, at different STPs utilizing activated sludge treatment. Other activated sludge treatment plants showed similar performances with aqueous-phase removal efficiency ranging from 95% to 96% 27,28) , whereas trickling filters showed lower removal ef ficiencies ranging from 58% to 86% 27) . Triclosan undergoes biodegradation but due to its relatively high octanol-water partition coefficient (log Kow ＝5． 4) it adsorbs to sludge 29) .…”

Section: )mentioning

confidence: 90%

Contamination of Pharmaceutical and Personal Care Products in Sewage Treatment Plants and Surface Waters in South Korea and their Removal during Activated Sludge Treatment

et al. 2010

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“…It was shown that 79% of triclosan was removed from biological wastewater treatment processes due to the presence of triclosan-degrading bacteria in the activated sludge [9]. A removal of about 90% was measured in wastewater treatment plants (WWTP) employing a conventional activated sludge process of which 40-60% was due to biodegradation while the remainder was due to sorption to the sludge [3,9,10].…”

Section: Introductionmentioning

confidence: 99%