DOI: 10.1016/j.watres.2018.03.044
Scopus记录号: 2-s2.0-85046031714
论文题名: Pilot-scale evaluation of micropollutant abatements by conventional ozonation, UV/O3, and an electro-peroxone process
作者: Yao W. ; Ur Rehman S.W. ; Wang H. ; Yang H. ; Yu G. ; Wang Y.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 138 起始页码: 106
结束页码: 117
语种: 英语
英文关键词: Advanced oxidation
; Bromate
; Emerging contaminant
; Energy efficiency
; Pharmaceutical
; Water and wastewater treatment
Scopus关键词: Antibiotics
; Drug products
; Effluent treatment
; Effluents
; Energy efficiency
; Energy utilization
; Groundwater
; Irradiation
; Ozone
; Ozonization
; Surface waters
; Wastewater treatment
; Advanced oxidation
; Advanced oxidation process
; Bromate
; Emerging contaminant
; Pilot scale evaluation
; Realistic conditions
; Wastewater effluents
; Water and wastewater treatments
; Ozone water treatment
; bezafibrate
; bromate
; chloramphenicol
; clofibric acid
; diclofenac
; gemfibrozil
; ground water
; ibuprofen
; naproxen
; ozone
; surface water
; drug
; hydrogen peroxide
; ozone
; concentration (composition)
; dissolved organic carbon
; drug
; electrochemistry
; energy efficiency
; experimental study
; groundwater
; hydrogen peroxide
; ion
; oxidation
; ozonation
; ozone
; performance assessment
; pollutant removal
; surface water
; ultraviolet radiation
; wastewater
; wastewater treatment
; Article
; controlled study
; effluent
; electrochemistry
; electroperoxone
; intermethod comparison
; ozonation
; priority journal
; ultraviolet irradiation
; waste water
; waste water management
; water pollution control
; water quality
; water treatment
; analysis
; chemistry
; oxidation reduction reaction
; procedures
; radiation response
; sewage
; ultraviolet radiation
; water pollutant
; Bromates
; Hydrogen Peroxide
; Oxidation-Reduction
; Ozone
; Pharmaceutical Preparations
; Ultraviolet Rays
; Waste Disposal, Fluid
; Waste Water
; Water Pollutants, Chemical
英文摘要: The electro-peroxone (E-peroxone) process is an emerging ozone-based advanced oxidation process (AOP) that has shown large potential for micropollutant abatement in water treatment. To evaluate its performance under more realistic conditions of water treatment, a continuous-flow pilot E-peroxone system was developed and compared with conventional ozonation and a UV/O3 process for micropollutant abatements in various water matrices (groundwater, surface water, and secondary wastewater effluent) in this study. With a specific ozone dose of 1.5 mg O3/mg DOC, micropollutants that have high and moderate reactivity with ozone (O3) (diclofenac, naproxen, gemfibrozil, and bezafibrate) could be sufficiently abated (>90% abatement) in the various waters by all three processes. However, ozone-resistant micropollutants (ibuprofen, clofibric acid, and chloramphenicol) were abated only by ∼32–68%, 68–91%, and 73–90% during conventional ozonation of the selected groundwater, surface water, and secondary wastewater effluent, respectively. By electro-generating H2O2 or applying UV irradiation to enhance O3 transformation to •OH during ozonation, the E-peroxone and UV/O3 processes similarly enhanced the abatement efficiencies of ozone-resistant micropollutants by ∼15–43%, ∼5–15%, and ∼5–10% in the groundwater, surface water, and secondary wastewater effluent, respectively. In addition, the E-peroxone and UV/O3 processes significantly reduced bromate formation during the treatment of the three waters compared to conventional ozonation. Due to its higher efficiency, the E-peroxone process reduced ∼10–53% of the energy consumption required to abate the concentration of chloramphenicol (the most ozone-resistant micropollutant spiked in the waters) by 1 order of magnitude in the three waters compared to conventional ozonation. In contrast, the UV/O3 process consumed approximately 4–10 times higher energy than conventional ozonation. This pilot-scale study demonstrates that the E-peroxone process can provide a feasible, effective, and energy-efficient alternative for micropollutant abatement and bromate control in water and wastewater treatment. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112773
Appears in Collections: 气候减缓与适应
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作者单位: School of Environment, Beijing Key Laboratory for Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China
Recommended Citation:
Yao W.,Ur Rehman S.W.,Wang H.,et al. Pilot-scale evaluation of micropollutant abatements by conventional ozonation, UV/O3, and an electro-peroxone process[J]. Water Research,2018-01-01,138