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集中式饮用水源地高锰酸盐指数限值研究
引用本文:韩 梅,付 青,赵兴茹,陈艳卿,熊燕娜.集中式饮用水源地高锰酸盐指数限值研究[J].环境科学研究,2013,26(10):1126-1131.
作者姓名:韩 梅  付 青  赵兴茹  陈艳卿  熊燕娜
作者单位:1.中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012
基金项目:国家水体污染控制与治理科技重大专项(2009ZX07419-003);国家重点基础研究发展计划(973)项目(2008CB418206)
摘    要:CODMn(高锰酸盐指数)是一个反映地表水体受有机污染物和还原性无机物质污染程度的综合性指标,也是饮用水源地有机污染控制的重要指标. 对人体健康而言,CODMn一般不具备毒理特征,但ρ(CODMn)与经氯消毒后出水中消毒副产物浓度存在一定关联. 2007年典型流域集中式饮用水源地ρ(CODMn)调查结果表明了饮用水源地有机污染总体状况,即:湖库型水源地ρ(CODMn)最高,平均值为(2.70±1.40)mg/L;河流型水源地次之,平均值为(2.49±1.26)mg/L;地下水型水源地ρ(CODMn)最低. 湖库型和河流型水源地的ρ(CODMn)季节性变化较为明显,1—4月、11—12月较低,5—10月高,最大值均出现在8月;地下水型水源地的ρ(CODMn)较低,并且无明显季节性变化,平均值为(1.11±0.81)mg/L. 根据GB 5749—2006《生活饮用水卫生标准》和国内自来水厂主体净水工艺,建议我国饮用水源地ρ(CODMn)标准限值为4.0mg/L. 河流和湖库型水源地在不同月水质达标率分别为84.9%~89.0%和81.0%~89.6%,地下水型水源地水质达标率为99.6%. 为提高饮用水源地ρ(CODMn)达标水平,应重点加强河流和湖库型饮用水水源地农业面源的控制. 

关 键 词:集中式饮用水源地    高锰酸盐指数    水质特征    水质标准
收稿时间:2013/5/9 0:00:00
修稿时间:2013/6/21 0:00:00

Study on the Limit of Potassium Permanganate Index in Centralized Drinking Water Sources
HAN Mei,FU Qing,ZHAO Xing-ru,CHEN Yan-qing and XIONG Yan-na.Study on the Limit of Potassium Permanganate Index in Centralized Drinking Water Sources[J].Research of Environmental Sciences,2013,26(10):1126-1131.
Authors:HAN Mei  FU Qing  ZHAO Xing-ru  CHEN Yan-qing and XIONG Yan-na
Institution:1.State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China2.State Environmental Protection Key Laboratory of Drinking Water Source, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Abstract:To support the implementation of environmental quality standards for surface water revision, CODMn limit was researched through systematic analysis of typical watershed water quality and consulting literatures. The contents in the literatures were referred to domestic and international drinking water quality standards, the CODMn health hazard in drinking water and assessment on CODMn removal effect of different water purification technology. As an important indicator of organic pollution control, potassium permanganate index (CODMn) is a comprehensive index reflecting water organic pollution. Concerned on human health, CODMn generally to be thought not toxic. However, there is a relationship between CODMn and the disinfection by products concentration in chlorinated finished water. According to the survey conducted on CODMn concentration of typical watershed in China in 2007, CODMn of river, lakes/reservoir and groundwater of centralized drinking water sources was studied. The results showed that the highest CODMn concentration was in lake/reservoir sources with an average value of (2.70±1.40)mg/L, followed by river sources with an average value of (2.49±1.26)mg/L. The two types of water source presented seasonal variations that CODMn concentrations were lower from January to April and from November to December, but higher from May to October and reached the maximum value in August. CODMn concentration in groundwater sources was lower, compared with the other two types of water source, the average value of which is (1.11±0.81)mg/L. There was no obvious seasonal variation of CODMn concentration in groundwater sources. According to the “Standards for Drinking Water Quality” (GB 5749-2006) and the current routine of water purification process in China, the proposed CODMn concentration standard limit in drinking water sources is 4.0mg/L. The evaluation results showed that the water quality standard rate of CODMn concentration was 84.9%-89.0% in river-type source, 81.0%-89.6% in lake/reservoir source and 99.6% in groundwater source, respectively. In order to improve the level to meet the requirement of CODMn in drinking water sources, agricultural non-point pollution sources should be strengthening controlled. 
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