乡村社会治理为视角的河流非点源污染水净化技术研究

Study on Non-point Source Pollution Water Purification Technology of Rivers from Perspective of Rural Social Governance

水资源不足及人类大量经济活动导致乡村河流生态问题日益严重,以河流非点源污染为研究对象,利用植被过滤带技术净化污染水。利用引水渠道将蓄水池水引到各个植被过滤带,且植被过滤带的出口位置设置了能够收集地表径流的水池。试验过程中,采集样品后,将收集到的水样分为瞬时水样、混合水样两种。将采集的实验样本加入H_2SO_4送至实验室分析,并分别利用不同方式测定水样中的SS、TP和TN浓度等参数。实验结果表明,3#草地过滤带对径流速度产生的影响最大,且对SS、TP和TN三者的浓度与负荷削减率最高,最具净化性。

Insufficient water resources and a large number of human economic activities have led to the growing ecological problems of rural rivers. The non-point source pollution of rivers is the research object, and the vegetation filter belt technology is used to purify polluted water. The water in the reservoir is led to the various vegetation filter belts by the water diversion channel, and the outlet of the vegetation filter belt is provided with a pool capable of collecting surface runoff. During the test, after collecting the sample, the collected water samples are divided into two types:instantaneous water sample and mixed water sample. The collected experimental samples were sent to the laboratory for analysis by H 2SO 4, and the parameters such as SS, TP and TN concentrations in the water samples were determined by different methods. The experimental results show that the 3# grass filter belt has the greatest impact on the runoff velocity, and the highest concentration and load reduction rate for SS, TP and TN, the most purifying.