globalchange  > 气候减缓与适应
DOI: 10.1016/j.watres.2018.04.038
Scopus记录号: 2-s2.0-85047486028
论文题名:
Dissolved Mn(III) in water treatment works: Prevalence and significance
作者: Johnson K.L.; McCann C.M.; Wilkinson J.-L.; Jones M.; Tebo B.M.; West M.; Elgy C.; Clarke C.E.; Gowdy C.; Hudson-Edwards K.A.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 140
起始页码: 181
结束页码: 190
语种: 英语
英文关键词: Manganese removal ; Mn(III) ; Natural organic matter (NOM) ; Water treatment works
Scopus关键词: Biological materials ; Catchments ; Chemicals removal (water treatment) ; Dissolution ; Mean values ; Mn oxides ; Natural organic matters ; Reductants ; Upland catchment ; Waste products ; Water industries ; Water treatment works ; Manganese removal (water treatment) ; manganese ; manganese oxide ; natural organic matter ; manganese ; catchment ; concentration (composition) ; dissolution ; inflow ; manganese ; manganese oxide ; organic matter ; oxide group ; particulate matter ; pollutant removal ; sludge ; upland region ; wastewater treatment ; Article ; catchment ; controlled study ; England ; humic substance ; metal recovery ; priority journal ; recycling ; sludge ; solid waste ; suspended particulate matter ; waste water management ; water content ; analysis ; prevalence ; procedures ; waste water ; water management ; water pollutant ; England ; Manganese ; Prevalence ; Waste Water ; Water Pollutants, Chemical ; Water Purification
英文摘要: Dissolved Mn(III) has been identified at all stages throughout a Water Treatment Works (WTW) receiving inflow from a peaty upland catchment in NE England. Ninety percent of the influent total manganese into the WTW is particulate Mn, in the form of Mn oxide (>0.2 μm). Approximately 9% (mean value, n = 22, range of 0–100%) of the dissolved (<0.2 μm) influent Mn is present as dissolved Mn(III). Mn(III) concentrations are highest (mean of 49% of total dissolved Mn; n = 26, range of 17–89%) within the WTW where water comes into contact with the organic-rich sludges which are produced as waste products in the WTW. These Mn(III)-containing wastewaters are recirculated to the head of the works and constitute a large input of Mn(III) into the WTW. This is the first report of Mn(III) being identified in a WTW. The ability of Mn(III) to act as both an oxidant and a reductant is of interest to the water industry. Understanding the formation and removal of Mn(III) within may help reduce Mn oxide deposits in pipe networks. Further understanding how the ratio of Mn(III) to Mn(II) can be used to optimise dissolved Mn removal would save the water industry significant money in reducing discoloration ‘events’ at the customers' tap. © 2018
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112717
Appears in Collections:气候减缓与适应

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作者单位: Department of Engineering, Durham University, South RoadDH1 3LE, United Kingdom; School of Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne, NE1 7RU, United Kingdom; AECOM, Newcastle Upon Tyne, NE1 2HF, United Kingdom; School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang-si, Gyeoungsangbuk-do 37673, South Korea; Institute of Environmental Health, Oregon Health & Science University, Portland, OR 97239, United States; Department of Geography, Durham University, South RoadDH1 3LE, United Kingdom; Facility of Environmental Nanoscience Analysis and Characterisation, Department of Geography Earth and Enviromental Sciences, Edgbaston, Birmingham, B15 2TT, United Kingdom; Department of Soil Science, Stellenbosch University, Private Bag X1, Matieland7602, South Africa; Northumbrian Water Group Ltd., Boldon House, Wheatlands Way, Pity Me, Durham, DH1 5FA, United Kingdom; Environment & Sustainability Institute and Camborne School of Mines, University of Exeter, Penryn, Cornwall, TR10 9DF, United Kingdom

Recommended Citation:
Johnson K.L.,McCann C.M.,Wilkinson J.-L.,et al. Dissolved Mn(III) in water treatment works: Prevalence and significance[J]. Water Research,2018-01-01,140
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