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近年来农村新建的集中式供水水源中采用的井壁管材各不相同。多采用全渗透的水泥砂石管,少部分用铸铁管材,由于井壁的密封深度(即井眼与井管之间和井壁用不透水材料密封深度)的不同,可能对水质产生不良影响。为了解井壁密封深度与水质的关系,我们选择水文地质相同的香河县部分村镇水井进行卫生状况、水井深度、密封深度、水质的调查。选用常见的污染项目氨氮、氯化物做为水质被污染
In recent years, the newly built centralized water supply source in rural areas has different wall pipe materials. The use of fully infiltrated cement-gravel pipes, with a small proportion of cast-iron pipe, may have adverse effects on water quality due to the seal depth of the shaft wall (ie, the depth of seal between the wellbore and the wellbore and the impervious material of the wellbore) . In order to understand the relationship between the depth of well wall sealing and water quality, we selected some villages and towns in Xianghe County with the same hydrogeology to conduct a survey on sanitary conditions, well depth, seal depth and water quality. Use of common pollution projects ammonia, chloride as water quality is polluted