重庆白沙渗流井渗透水水质特征研究

Characteristics of Seepage Water Quality of Baisha Filter Well in Chongqing

对重庆江津白沙自来水厂施工的渗流井渗透水水质进行的研究表明,受微污染的高浊度江河水,通过天然河床渗滤处理转化为渗透水,能够较好地去除水中的悬浮物质,降低水的浊度,并有较好的除菌效果。渗透水的NO-3,COD,BOD,TOC含量明显降低,去除效果达75%以上。渗透水常量化学组分发生较为明显的变化,微量组分含量变化不大。渗透水水质达到国家饮用水标准,可以直接作为生活用水。

Analyses of the seepage water quality in the filter well constructed by Baisha waterworks in Jiangjin, Chongqing reveal that, through infiltration of sandy gravel in the river bed, the micropolluted, high turbid river water can be converted into seepage water with suspended substances and bacteria well removed and turbidity visibly reduced. The contents of NO-3, COD, BOD and TOC in the seepage water are obviously reduced, and the removal ratio is over 75%. The change of major components in content is remarkable, while the microcomponents have not clear change in content. The quality of the seepage water accords with the national standard for drinking water quality, and can be used as domestic water directly.