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目的:了解某区水厂污染状况,为某区城镇居民饮水安全提供可行的解决方案。方法:对某区各水厂针对性采取不同监测方案,将所得数据进行分析。结果:水源水总体较好,出厂水基本上都含有汞,某些时段的出厂水汞含量超出限值;对某厂的非常规监测中发现,沉淀剂和使用后滤砂中均检出汞,疑为厂内蓄积和器壁吸附造成的出厂水污染。结论:某区水厂均存在厂内污染和蓄积问题,严重影响出厂水质量;因此,改进水处理工艺;定期清洗和更换厂内耗材;建立和完善相关法律法规,加强对地表水的保护,保证城镇居民的用水安全。
Objective: To understand the pollution status of waterworks in a district and provide feasible solutions for the drinking water safety of urban residents in a certain district. Methods: Targeting various water plants in a certain district to adopt different monitoring schemes and analyzing the data obtained. Results: The water source water is generally good, and the ex-factory water basically contains mercury. The mercury content of the factory water in some periods exceeds the limit value. Unconventional monitoring of a factory found that mercury was detected in both the precipitant and after-use filter sand , It is suspected that the factory water accumulation and wall adsorption caused by factory water pollution. Conclusion: There are problems of pollution and accumulation in the waterworks in a district, which seriously affect the quality of the factory water. Therefore, the water treatment process is improved; the factory consumables are regularly cleaned and replaced; the relevant laws and regulations are established and perfected; the protection of surface water is strengthened; To ensure the safety of urban residents water.