摘要
[目的 ]探讨地面水和地下水二种水源混水对生活饮用水水质的影响。 [方法 ]对三种混水模式 (地下水的水质状况、与之混合的地面水种类、地面水与地下水混合的比例均有所不同 )连续 3年观察混水前后水中 2 4项卫生学指标的变化。 [结果 ]经混水工艺处理后的水与原地下水相比 ,可以使水中氯化物、硝酸盐、硫酸盐、总硬度和铁的含量降低 30 %～ 70 % ,其中硝酸盐和总硬度的含量减少约 50 % ,并由原地下水水质中硝酸盐和总硬度含量超过生活饮用水卫生标准降至标准限以下。 [结论 ]本文阐述的混水模式应用于生活饮用水中 ,是一种有效改善地下水水质的方法 ,它可以使出厂水的检测指标符合生活饮用水的卫生标准 ,并明显地降低原地下水中无机离子的含量 。
To study the effect of mixing water model on drinking water quality. The three cases were selected based on different district underground water,surface water and the radio of underground to surface water. 24 water quality parameters of the water were examined before and after mixing for 3 years successively. Compared to raw water,the concentration of chloride ,nitrate,sulfate,total hardness and iron in effluent reduced by 30%～70%. The quality of nitrate and total hardness descended almost by 50% and meet sanitary standards for drinking water after treatment. [Conclusion] The mixing water model for drinking water can lower the level of inorganic ions in drinking water,improve its quality and it is helpful to solve the problem of drinking water with coneentrations of nitrate and total hardness over sanitary standards.
出处
《环境与职业医学》
CAS
北大核心
2003年第2期123-125,共3页
Journal of Environmental and Occupational Medicine
