DOI: 10.1016/j.watres.2018.08.035
Scopus记录号: 2-s2.0-85052283146
论文题名: A review of landfill leachate induced ultraviolet quenching substances: Sources, characteristics, and treatment
作者: Iskander S.M. ; Zhao R. ; Pathak A. ; Gupta A. ; Pruden A. ; Novak J.T. ; He Z.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 145 起始页码: 297
结束页码: 311
语种: 英语
英文关键词: Landfill leachate
; Recalcitrant organic carbon
; UV absorbance
; UV disinfection
; UV quenchers
Scopus关键词: Biochemical engineering
; Biological materials
; Bioremediation
; Disinfection
; Organic acids
; Organic carbon
; Quenching
; Sewage
; Sewage treatment plants
; Waste treatment
; Wastewater treatment
; Biological treatment
; Biological treatment process
; Disinfection efficacy
; Landfill leachates
; UV absorbance
; UV disinfection
; UV quenchers
; Wastewater treatment plants
; Leachate treatment
; absorbance
; absorption
; disinfection
; humic acid
; landfill
; leachate
; optimization
; pollutant removal
; ultraviolet radiation
; wastewater treatment
英文摘要: Landfill leachate contains extremely diverse mixtures of pollutants and thus requires appropriate treatment before discharge. Co-treatment of landfill leachate with sewage in wastewater treatment plants is a common approach because of low cost and convenience. However, some recalcitrant organic compounds in leachate can escape biological treatment processes, lower the UV transmittance of waste streams due to their UV-quenching properties, and interfere with the associated disinfection efficacy. Thus, the leachate UV quenching substances (UVQS) must be removed or reduced to a level that UV disinfection is not strongly affected. UVQS consist of three major fractions, humic acids, fulvic acids and hydrophilics, each of which has distinct characteristics and behaviors during treatment. The purpose of this review is to provide a synthesis of the state of the science regarding UVQS and possible treatment approaches. In general, chemical, electrochemical, and physical treatments are more effective than biological treatments, but also costlier. Integration of multiple treatment methods to target the removal of different fractions of UVQS can aid in optimizing treatment. The importance of UVQS effects on wastewater treatment should be better recognized and understood with implemented regulations and improved research and treatment practice. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112431
Appears in Collections: 气候减缓与适应
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作者单位: Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States; Department of Civil and Environmental Engineering, Lamar University, Beaumont, TX 77710, United States; Hazen and Sawyer, Fairfax, VA 22033, United States; Intel Corporation, Hillsboro, OR 97124, United States; Department of Civil, Architectural and Environmental Engineering, North Carolina Agricultural & Technical State University, Greensboro, NC 27401, United States
Recommended Citation:
Iskander S.M.,Zhao R.,Pathak A.,et al. A review of landfill leachate induced ultraviolet quenching substances: Sources, characteristics, and treatment[J]. Water Research,2018-01-01,145