城市综合污水处理厂出水消毒成本-效益分析  

The Re-Disinfecting Technology and Its Cost-Benefit Analysis of Treated Urban Sewage

作　　者：周海川[1] 林玉娣[1] 马玉林[1] 

机构地区：[1]无锡市卫生防疫站,江苏无锡214002

出　　处：《环境科学研究》2002年第5期55-57,61,共4页Research of Environmental Sciences

基　　金：江苏省卫生厅课题 ( 9910 1)

摘　　要：分析研究了污水处理厂出水液氯消毒实验所涉及的成本和效益概念 ,提出了相应的成本 -效益分析的计算方法和计算参数。以无锡市芦村污水处理厂出水为例 ,30mg L有效氯作用 30min时 ,能杀灭出水中 98%的大肠菌群 ,其实施成本约为 730万元 a ,而产生的总效益约为196 1万元 a。其中 ,减少肠道传染病发病的健康效益约 76 7万元 a,减少湖水污染和蓝藻繁殖的环境效益约为 1194万元 a ,整个技术的效益 -成本比约为 2 7∶1。The cost and benefit concepts involved in liquid\|chlorine\|based disinfection experiments for effluents from sewage plants are analyzed,and corresponding calculation methods and parameters of cost\|benefit analysis presented.Put Lucun Sewage Plant,Wuxi as an example,the colon bacillus killing rate is about 98% with chlorine concentration of 30 mg/L available and an acting period of 30 min; the total cost for Lucun Sewage Plant is about 7.3×10 6 yuan/a,while the total benefit is about 19.61×10 6 yuan/a,including 7.67×10 6 yuan/a of health benefit gained from reducing intestine\|based contagious disease and 11.94×10 6 yuan/a of environmental benefit gained from reducing lake pollution and blue algae reproduction.The benefit\|cost ratio of the re\|disinfecting technology is about 2.7∶1.

关 键 词：污水处理厂 出水消毒 成本-效益分析 肠道传染病 蓝藻 

分 类 号：X832[环境科学与工程—环境工程] X505