期刊
WATER ENVIRONMENT RESEARCH
卷 85, 期 2, 页码 151-157出版社
WATER ENVIRONMENT FEDERATION
DOI: 10.2175/106143012X13373575831150
关键词
tin oxide anodes; dimensionally stable anodes; electrochemical disinfection; wastewater effluent disinfection; drinking water disinfection; water quality
资金
- Water Environment Research Foundation (Alexandria, Virginia) [02-CTS-6]
The use of tin oxide anodes (TOAs) has been proposed for the disinfection of wastewater effluents and concurrent treatment of emerging contaminants. The common water quality constituents suspended solids, chemical oxygen demand (COD), alkalinity, ammonia-nitrogen, nitrite-nitrogen, and nitrate-nitrogen were investigated for their effect on oxidation performance by TOAs. Relative oxidant generation rates were not affected by increasing concentrations of suspended solids, COD, alkalinity, ammonia-nitrogen, or nitrate-nitrogen. Although nitrite-nitrogen did compete for oxidants generated by TOAs, nitrite is not usually present in oxygenated effluents. Chemical oxygen demand, ammonia, and nitrite were oxidized in the TOA systems, primarily through a non-hydroxyl radical mechanism. This research demonstrates that a majority of the common water quality constituents did not negatively affect TOA oxidation performance. Tin oxide anodes represent a potentially low cost and low maintenance option for single-step disinfection and treatment of emerging contaminants in wastewater effluents. Water Environ. Res., 85, 151 (2013).
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