长汀县古城河流域水质现状分析及污染防治对策探讨

Analysis on the Present Situation of Water Quality in the Gucheng River Basin of Changting County and Discussion on the Countermeasures for Pollution Control

长汀县古城河作为闽西南唯一一条流经赣江汇入长江的河流,保护流域环境不被污染和破坏,对保护长江支流源头具有重要意义。通过对流域内地表水监测布点获得现状监测数据,并采用综合污染指数法对水质进行评价,结果显示,断面总体水环境状况一般,监测点位W_(2)、W_(5)和W_(6)水质为轻度污染,监测点位W_(3)和W_(4)水质为中度污染,超标指标主要是COD_(Mn)和TP。分析得出4条导致其水质超标原因,结合实际、因地制宜,提出6条水污染防治对策。

As the only river flowing through Ganjiang River and flowing into the Yangtze River in southwest Fujian,the Gucheng River in Changting County is of great significance to protect the basin environment from pollution and damage,and to protect the source of the tributaries of the Yangtze River.The current monitoring data are obtained from the surface water monitoring points in the basin,and the water quality is evaluated by using the comprehensive pollution index method.The results show that the overall water environment condition of the section is general,the water quality of monitoring points W_(2),W_(5) and W_(6) is slightly polluted,the water quality of monitoring points W_(3) and W_(4) is moderately polluted,and the indicators exceeding the standard are mainly COD_(Mn) and TP.Based on the analysis of 4 causes of water quality exceeding the standard,6 water pollution prevention countermeasures are proposed according to the actual situation and local conditions.