DOI: 10.1016/j.watres.2018.02.010
Scopus记录号: 2-s2.0-85041749225
论文题名: Influences of dissolved organic matters on tetracyclines transport in the process of struvite recovery from swine wastewater
作者: Lou Y. ; Ye Z.-L. ; Chen S. ; Wei Q. ; Zhang J. ; Ye X.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 134 起始页码: 311
结束页码: 326
语种: 英语
英文关键词: Antibiotic
; Dissolved organic matter
; Phosphorus recovery
; Struvite
; Wastewater
Scopus关键词: Antibiotics
; Biogeochemistry
; Dissolution
; Molecular weight
; Organic compounds
; Recovery
; Wastewater
; Dissolved organic matters
; Molecular weight cutoff
; Phosphate recovery
; Phosphorus recovery
; Struvite recoveries
; Struvites
; Synthetic waste water
; Tetracyclines (TCs)
; Biological materials
; chlortetracycline
; dissolved organic matter
; fulvic acid
; organic matter
; oxytetracycline
; struvite
; tetracycline derivative
; antiinfective agent
; tetracycline derivative
; aggregation
; antibiotics
; concentration (composition)
; degradation
; dissolved organic matter
; hydrolysis
; pH
; phosphate
; pollutant removal
; recovery
; struvite
; wastewater
; wastewater treatment
; Article
; fractionation
; hydrogen bond
; hydrolysis
; infrared spectroscopy
; liquid chromatography-mass spectrometry
; molecular weight
; pH
; pig
; precipitation
; priority journal
; waste water
; waste water management
; analysis
; animal
; procedures
; recycling
; sewage
; water pollutant
; Suidae
; Animals
; Anti-Bacterial Agents
; Recycling
; Struvite
; Swine
; Tetracyclines
; Waste Disposal, Fluid
; Waste Water
; Water Pollutants
英文摘要: Due to the extensive existence of tetracyclines (TCs), struvite (MgNH4PO4·6H2O) recovery from swine wastewater will pose TCs-pharmacological threats to the agricultural planting and environment. This study investigated the influences of dissolved organic matters (DOM), as an important medium in the wastewater, on TCs transport during struvite recovery from swine wastewater. Compared to TCs concentrations of 1.49–2.16 μg/g in the solids obtained from synthetic wastewater, the existence of DOM significantly enhanced TCs contents in the products with the values of 360–742 μg/g. DOM was fractionated into four size fractions with different molecular weight cut-off, i.e. FDOM1 (30 kDa-0.45 μm), FDOM2 (5–30 kDa), FDOM3 (1–5 kDa) and FDOM4 (<1 kDa). Results revealed that the destabilization and aggregation of FDOM1 and FDOM2 contributed major roles to TCs transport from the aqueous phase to the solid products. Meanwhile, the hydrolysis of certain parts of FDOM1 and FDOM2 led to the aqueous TCs re-partition among various DOM constituents, which presented a false appearance that FDOM4 with smaller molecular weight posed significant influences on TCs transport. Increasing pH values from 8.5 to 10.5 resulted with a stepwise increase of precipitated DOM, thereby enhancing TCs concentrations from 94.5 to 292.4 μg/g to 627.2–825.0 μg/g in the recovered solids. The outcomes provide a better understanding on the capability of DOM on TCs transport and abatement in the phosphate recovery process. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112926
Appears in Collections: 气候减缓与适应
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作者单位: Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, No. 1799 Jimei Road, Xiamen City, Fujian 361021, China; University of Chinese Academy of Sciences, Beijing, 100049, China; College of Environmental Science and Engineering, Donghua UniversityShanghai 201620, China
Recommended Citation:
Lou Y.,Ye Z.-L.,Chen S.,et al. Influences of dissolved organic matters on tetracyclines transport in the process of struvite recovery from swine wastewater[J]. Water Research,2018-01-01,134