Study On Quality Analysis And Pollution Control Of Drinking Water Sources In Gongjing District Zigong

The pollution of drinking water sources,attributing to the insufficient investment,imperfect system and backward technology,will threaten to people’s health.In addition,the issue of drinking water safety has gain increasing attention due to the unscientific division of water source,the incomplete monitoring network and defective mechanism of integral management,etc.First of all,this paper collected the most advanced water resources protection information of the past two years and obtained the trend of pollution factors of water sources by using the monitoring data of drinking water sources in Gongjing District.The samples of drinking water sources were collected.The characteristic pollutants of the water sources were obtained.Secondly,this paper finds the most likely factors which cause the characteristic pollutants through field investigation and researc h.Finally,we propose the most scientific and sustainable water pollution control measurement by combining with the management status of drinking water sources.The main conclusions of this study are as follows: 1.Through the on-the-spot investigation of the current status of existing drinking water sources in Gongjing District of Zigong City and the analysis of fixed-point water samples and the comparative analysis of data results,we determined the main reasons for the excess of some indicators of the standby water sources.The results show that the water quality of the drinking water sources in Gongjing District is ordinary.The water quality of the Niuwei River,Lianhua River and Yuanyan Cave are all in the upper limit of Class III of the Surface Water Environmental Quality Standard(GB3838-2002).The remaining 6 spare water sources are not up to the Class III standard limits of the Surface Water Environmental Quality Standard(GB3838-2002).The nitrogen and phosphorus pollution in the water sources of Gongjing District of Zigong City mainly comes from rural ground pollution,including contaminated water in rural areas,fertilizers and pesticides applied in agricultural production,pollutants from decentralized livestock and livestock,and pollutants fro m soil erosion.2.For the pollution prevention and control in Gongjing District,we proposed to strengthen the control of total phosphorus,total nitrogen,fecal coliform,permanganate index and anionic surfactant.We also made a scientific and reasonable program for the living pollution control and rural non-point source pollution.The program can provide support for solving the water pollution problems of Gongjing District.3.In view of the problems existing in rural non-point source pollution sources and point source pollution sources in Gongjing District,pollution control measures were proposed.At the same time,the sewage treatment systems of Jianshe and Chengjia towns were selected for analysis and comparison,and improved township sewage was propo sed.The treatment system provides technical support for the complete solution of the problems of watershed pollution in rural drinking water sources in Gongjing District.After the implementation of the pollution control plan,the main pollutants in the d rinking water sources of Gongjing District will be discharged to meet the standards.This paper will play a very important role in the construction of the green water source of Gongjing District.