Study On Water Environment Of Jinjiang Tianfu Straight Section

This paper take the Chengdu Jinjiang Tianfu straight pipe section of basin as the research object, to pollution source investigation, four key river basins cross-section, month, daytime ambulatory monitoring and section flux encryption monitoring for basic research. Researching complement to relevant environmental monitoring department in recent years, the water quality monitoring data, to water quality analysis as the research focus. Find ing out the situation, to find the gap, discover a problem, identify the root cause of the "research ideas, in order to realize and adapt to the social development level of the water environmental quality objectives for the purpose of the study, improve pollution abatement precision and quality improvement for, for water environment improvement provide the basis.The main research methods include the first, combined with the rank correlation coefficient method for the quantitative and qualitative analysis of water quality. The second, in the analysis based on four key monitoring sections and used to describe the measures of central tendency and describe the discrete degree of the indicators, qualitative analysis of four key sections of pollutants in section flux; according to the structure of section flux load, the quantitative section maximum load allows limits and quantity of pollutant reduction were analyzed. The third gray correlation method is used to analyze four key sections, so as to screen the main pollutants of each section.Through the analysis of the main conclusions:1) through the water quality time series analysis shows:Jinjiang Jinjiang Yongan bridge, is in the four sections of highway bridge, Jinjiang Huanglongxi, Jiang'an River River Temple, Jiang'an River River Temple section of permanganate index, CODCr, oil three pollution index, Jin Jianghuang Longxi section tp a pollution index, Jinjiang Yongan bridge section anion surface active agent a dye index decline trend is significant, the water pollution improved trend is credible. The 4 sections of the remaining pollution factors in the evaluation period of the decline or upward trend is random, water quality changes are stable or stable, there is no obvious trend change.2) flux through the cross section analysis shows that:to Jinjiang Guanyin Bay Bridge, Jiang'an River River Temple, Jin Jiang is the pollutant fluxes in the four section of highway bridge, Jinjiang Yongan bridge analysis comprehensive analysis, simulation of flux through the main pollutant scene cut, monthly maximum cut flux appeared in June, ammonia nitrogen and total phosphorus maximum month cut the flux emergence in January, may, June, including Jinjiang is highway bridge, the largest month cut flux appeared in January, indicating that ammonia nitrogen in the section has obvious point source pollution with characteristics. The remaining sections and pollutants appear in May, June,5, June for the former stage of the late stage of water, wet period, often in the basin 1 years in the first period of heavy rain, which shows that the source of pollution.3) by gray correlation analysis showed that the ammonia nitrogen, Jinjiang Chengdu Tianfu District straight section of apparent ammonia pollution input, and the impact on the water exit section, the pollution sources do not rule out the zone centralized sewage treatment plant effluent, washing wa Yan pollution input; for permanganate index, Jinjiang Yong'an permanganate index the concentration of Jiang Anhe and Jinjiang city center section of the impact of input intensity, the influence degree of close, affected Jinjiang Chengdu Tianfu new area straight section; for TP, Jin Jiangtian Fu Chengdu straight section of Jinjiang Yong'an total phosphorus total phosphorus input water concentration obviously, close to the Jinjiang Jinjiang Bay Bridge, highway bridge is Guanyin correlation strength, little effect of Jiangan the river of Jinjiang Yong'an tp. The total phosphorus pollution control key pollution input of Jinjiang river city center and Jinjiang Chengdu District pollution input straight section.