江西新干地区渗滤取水浊度变化影响因素分析

Analysis on turbidity variation factors of percolating water abstraction at xin’gan,jiangxi

江西新干地区渗滤取水工程为新干县城主要供水水源之一,渗滤取水的水质尤为重要。作者通过对渗滤取水浊度的影响因素分析,得出河水浊度对渗滤取水浊度影响最大,是渗滤水浊度最大的影响因素。抽水速度对渗滤水浊度在短时间内有一定影响,但就浊度整体变化趋势而言影响不大。滤层物质组成直接影响过滤效果,丰水季滤层粘粒含量减少,造成渗滤水浊度均值1 NTU高于枯水季0.12 NTU。

The structure of percolating water abstraction has been one of the major water-supply sources in xin’gan,a county in Jiangxi province.Therefore,water quality of percolating water abstraction becomes particularly important.By analyzing the factors affecting the turbidity of percolating water,it is concluded that the turbidity of river water has the greatest influence on the turbidity of percolating water,which is the most influential factor of turbidity of percolating water.The pumping speed has a certain influence on the turbidity of the percolation water in a short time,but it has little effect on the overall trend of turbidity.The composition of the filter layer directly affects the filtration effect,and the clay content of the filter layer in the wet season is reduced,resulting in a mean turbidity of 1 NTU of the percolation water and a 0.12 NTU of the dry season.