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首页> 外文会议>Water Environment Federation 75th annual technical exhibition amp; conference (WEFTEC 2002) >An Evaluation of UV and NaOCl for Wastewater Disinfection at the Pelham WWTP
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An Evaluation of UV and NaOCl for Wastewater Disinfection at the Pelham WWTP

机译：在佩勒姆污水处理厂对紫外线和NaOCl进行废水消毒的评估

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A relatively new ultraviolet (UV) disinfection technology has been selected for thernPelham wastewater treatment plant (WWTP) operated by the Western Carolina RegionalrnSewer Authority (WCRSA). When completed, the Pelham WWTP will be the largestrnUV installation in South Carolina and one of the largest low pressure, high intensity UVrnsystems in the United States.rnPresently, chlorine gas is used for effluent disinfection, and sulfur dioxide gas is used forrndechlorination. Chlorine gas, sodium hypochlorite, and UV disinfection were evaluatedrnduring the predesign process with UV appearing to be the best alternative. The Pelhamrnplant will receive effluent from the Taylors WWTP, another WCRSA plant, afterrndecommissioning in five years. Differences in the two plants’ effluent quality, color,rntransmittance, and dissolved inorganics were concerns for selection of the UV system.rnTherefore, plant-specific testing was done to confirm the UV design criteria.rnAfter completion of the site specific study, UV and liquid sodium hypochlorite (NaOCl)rndisinfection with sodium bisulfite (NaHSO3) dechlorination were considered forrnimplementation. The disinfection system will have a design capacity equal to thernexpanded plant capacity of 22.5 mgd. This paper highlights the decision matrix used tornevaluate disinfection alternatives including evaluation of UV technologies, plant specificrntesting, costs analyses, and the establishment of design criteria.
机译：西卡罗来纳州地区污水处理局（WCRSA）运营的佩勒姆污水处理厂（WWTP）已选择了一种相对较新的紫外线（UV）消毒技术。佩勒姆污水处理厂完工后，将成为南卡罗来纳州最大的紫外线装置，也是美国最大的低压高强度紫外线系统之一。目前，氯气用于废水消毒，二氧化硫用于脱氯。在预设计过程中，对氯气，次氯酸钠和紫外线消毒进行了评估，其中紫外线似乎是最好的选择。 Pelhamrnplant将在五年内退役后，从另一个WCRSA工厂Taylors污水处理厂得到废水。紫外线系统的选择要考虑到两种植物的出水水质，颜色，透射率和溶解的无机物的差异。因此，进行了针对工厂的测试以确认紫外线的设计标准。用亚硫酸氢钠（NaHSO3）脱氯消毒液体次氯酸钠（NaOCl）被认为是无效的。消毒系统的设计容量将等于扩建后的22.5 mgd。本文重点介绍了用于评估消毒替代方案的决策矩阵，包括紫外线技术的评估，工厂特定测试，成本分析和设计标准的建立。

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