不同水源水与处理工艺对生活饮用水水质的影响

Effect of different water sources and treatment technology on drinking water quality

目的了解不同水源水与水质工艺处理方式对饮用水水质的影响。方法按不同源水来源与处理工艺在辖区内设置生活饮用水采样点37个,每月采样检测,共采集水样408件。结果黄浦江源水生活饮用水水质检测总合格率为74.85%,青草沙水库源水的水质检测总合格率为97.47%,二者差异有统计学意义(χ2=48.07;P<0.05)。黄浦江源水经深度处理后,生活饮用水水质检测总合格率为83.08%,常规处理水质总合格率仅为48.78%,二者差异有统计学意义(χ2=19.48;P<0.05);青草沙水库源水经2种不同工艺处理后,水质没有明显差异。结论水质以青草沙水库为源水的优于黄浦江源水。源水与处理工艺决定水质的优劣,应逐步选用优质源水和深度处理工艺,去除水中有机物的污染,有效提高水质质量。

[Objective]To understand the effect of different water sources and treatment technology on drinking water quality.[Methods]There were 37 monitoring points of drinking water in Minhang District according to different water sources and treatment technology,the water samples were collected for laboratory analyses every month,and a total of 408 water samples were investigated in this study. [Results]The total qualification rate of drinking water from Huangpu River and Qingcaosha reservoir was 74. 85%and 97. 47% respectively,and difference was statistically significant（ χ^2= 48. 07,P〈 0. 05）. For the drinking water from Huangpu River,the qualification rate after advanced treatment and conventional treatment was 83. 08% and 48. 78% respectively,and difference was statistically significant（ χ^2= 19. 48,P〈 0. 05）. However,no significant difference was found in qualification rate of drinking water from Qingcaosha reservoir between two ways of treatment. [Conclusion]The quality of drinking water from Qingcaosha reservoir is better than that from Huangpu River. Different water sources and treatment technology determine the quality of water. High quality source water are recommended,and advanced water treatments should be used to prevent drinking water from organic pollution,to effectively improve the water quality.