上海市家用活性炭净水器出水有机物含量及影响因素  

Organic indicators and its influencing factors in finished water of domestic water treatment units with activated carbon filters in Shanghai

作　　者：李竹[1] 凌霄[1] 崔文广[1] 张泓[2] 蔡萍[2] 陈哲[1] 苏怡[1] 吴立明[1] 

机构地区：[1]上海市疾病预防控制中心健康相关产品卫生评价科,上海200336 [2]上海市疾病预防控制中心卫生检测实验室

出　　处：《环境与健康杂志》2015年第5期415-419,共5页Journal of Environment and Health

基　　金：上海市卫生局科研课题(2010182)

摘　　要：目的了解上海市家用活性炭净水器出水有机物指标合格状况及其影响因素。方法分别于2011年夏季(7月)、秋季(10月)、冬季(12月),对上海市248户使用活性炭净水器的居民家庭净水器的使用情况进行调查,并检测出水水样中耗氧量、总有机碳浓度。结果夏季、秋季和冬季的活性炭净水器出水中耗氧量的不合格率分别为37.5%,33.6%,37.9%;夏季活性炭净水器出水中总有机碳的不合格率为0.8%,秋季和冬季活性炭净水器出水中的总有机碳均合格。多因素分析显示,夏、秋、冬季不同主滤芯出水量与净水器出水耗氧量不合格呈正向关联。各个季节活性炭净水器出水中耗氧量与总有机碳均呈正向关联。结论家用活性炭净水器在使用过程中存在有机物去除率不达标的问题,有一定的健康风险。影响耗氧量合格率的因素主要为主滤芯出水量、市政水水源地,应及时更换活性炭滤芯。Objective To investigate organic indicators and its influencing factors in finished water of domestic water treatment units （WTUs） with activated carbon filters in Shanghai. Methods A total of 248 families were chosen in Shanghai and the finished water samples of WTUs were collected for the determination of COD and TOC in summer（Jul.）, autumn（Oct.）, and winter （Dec.）, and the influencing factors were investigated. Results The unqualified rates for COD were 37.5% in summer, 33.6% in autumn and 37.9% in winter. The unqualified rates for TOC of treated water was 0.8% in summer, meanwhile, TOCs were qualified in autumn and winter. Multivariate analysis showed that treated water volume of the filter was positively correlated with the unqualified rates of COD in summer, autumn and winter. There were positive correlations between COD and TOC in each season. Conclusion The main influencing factors for removal rate of organic compounds for domestic WTUs with activated carbon filters are treated water volume, the water quality of raw water. It is necessary to replace the activated carbon filters in time.

关 键 词：活性炭净水器 有机物 污染 影响因素 

分 类 号：R123.1[医药卫生—环境卫生学]