DOI: 10.1016/j.watres.2018.08.034
Scopus记录号: 2-s2.0-85053047617
论文题名: Distribution and fate of pharmaceuticals and their metabolite conjugates in a municipal wastewater treatment plant
作者: Brown A.K. ; Wong C.S.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 144 起始页码: 774
结束页码: 783
语种: 英语
英文关键词: Beta-blocker
; Metabolite conjugate
; Pharmaceutical
; Sulfonamide
; Thyroid hormone
; Wastewater treatment plant
Scopus关键词: Biomolecules
; Drug products
; Effluent treatment
; Effluents
; Metabolites
; Reclamation
; Reservoirs (water)
; Sewage pumping plants
; Sulfur compounds
; Water treatment plants
; Beta-blockers
; Municipal wastewater treatment plants
; Occurrence and distribution
; Sulfonamide
; Suspended particulate matters
; Thyroid hormones
; Wastewater treatment plants
; Wastewater treatment process
; Wastewater treatment
; activated sludge
; discharge
; drug
; effluent
; environmental fate
; hormone
; metabolite
; sulfate
; suspended particulate matter
; wastewater treatment plant
英文摘要: Some pharmaceutical conjugates can be excreted into wastewaters at levels rivalling those of the parent compounds; however, little is known about this potential reservoir of pharmaceuticals to aquatic systems. We evaluated the occurrence and distribution of four different classes of pharmaceuticals and their metabolite conjugates in a wastewater treatment plant over four months. Aqueous and suspended solids fractions of primary, mixed liquor, secondary, and final effluent, along with return activated sludge, and waste activated sludge were assessed. The only conjugate not found in the final effluent was acetaminophen sulfate. Moreover, thyroxine and thyroxine glucuronide were the only compounds quantified in the suspended solids in the final effluent. Propranolol, propranolol sulfate, thyroxine, and thyroxine glucuronide all had no significant decreases in concentration going through the wastewater treatment process, from primary to final effluent. However, there were significant decreases observed for acetaminophen (99.8%), sulfamethoxazole (71%), N-acetyl sulfamethoxazole (59%), and sulfamethoxazole glucuronide (79%). The mean (±SEM) mass loadings in the aqueous fraction of the final effluent for each compound ranged from 0.84 ± 0.2 g/d for thyroxine to 45.3 ± 4.2 g/d for acetaminophen. At least as much conjugate was released into receiving waters, if not more: 1.6 ± 0.2 g/d for thyroxine glucuronide to 18.5 ± 4.5 g/d for sulfamethoxazole glucuronide, and 61.2 ± 9.6 g/d for N-acetyl sulfamethoxazole. Additionally, the mean loading of thyroxine was 0.29 ± 0.025 g/day and thyroxine glucuronide 1.8 ± 0.59 g/day in the suspended solids. This equates to 26% of total thyroxine and 53% of total thyroxine glucuronide associated with suspended particulate matter that reaches receiving waters. This study reflects the importance of including phase II conjugates in assessing overall compound load of pharmaceutical discharge from wastewaters, and also that substantial amounts of such contaminants are associated with wastewater solids when drugs are in the pg/L to μg/L range. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112514
Appears in Collections: 气候减缓与适应
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作者单位: University of Manitoba, Department of Chemistry, Winnipeg, MB R3T 2N2, Canada; The University of Winnipeg, Departments of Chemistry and Environmental Studies and Sciences, Richardson College for the Environment, Winnipeg, MB R3B 2E9, Canada
Recommended Citation:
Brown A.K.,Wong C.S.. Distribution and fate of pharmaceuticals and their metabolite conjugates in a municipal wastewater treatment plant[J]. Water Research,2018-01-01,144