无锡农村饮用水检测结果分析

Countryside Drinking Water in Wuxi Examination Result Analysis

目的了解农村饮水卫生质量和水井结构对水质影响情况。方法选3个不同区县4个自然村河塘水、井水及部分用浅式漏斗替代井旁窨阱及阴沟后的井水。结果井水粪大肠杆菌、细菌总数、硝酸盐氮超标率高,少数检出沙门氏菌。河塘水粪大肠杆菌、细菌总数超标率为100.00%,耗氧量、浑浊度、硝酸盐氮超标率均达50.00%以上。水井改进后水质指标硝酸盐氮、氯化物平均值明显好转,耗氧量、氨氮、亚硝酸盐氮平均值有好转。结论农村井水水质普遍受到细菌、硝酸盐的污染。河塘水受细菌和有机物污染严重,不可以饮用。水井结构改进后水质卫生质量有明显提高。

OBJECTIVE To Understand the health quality of the Countryside drinking water and water well structure to influence a circumstance to the water quality. METHODS Choose four natural village river pond water, well water and water parting with the shallow type funnel act for the well side overcast pit and sewerate. RESULTS It is high for faecal coliform, bacterial count, nitrate nitrogen in well water to super standard, the super standard rate for Faecal coliform, bacterial count in The river pond water attain as 100.00%, chemical oxygen demand, Turbidity, nitrate nitrogen super standard rate all reaches to 50.00%above. Water quality is an obvious amendment after improving well structure, water quantity index nitrate nitrogen, chloride, chemical oxygen demand, ammonia nitrogen, nitrate nitrogen are amended. CONCLUSION The Countryside drinking water well is widespread to be subjected to the pollution of bacteria, nitrate nitrogen. River pond water is subjected to bacteria and organic matter to pollute severity, can＇t drink. The water well structure improved, the well waterquality obviously Raised.