Study On Analysis And Countermeasures Of Monitoring Results About Rural Drinking Water Safety Projects In Liaocheng City

SettingWater is constitute the basic elements of the natural environment, is an important resource on earth, and all life system is the material basis for the survival and development. The total quantity of water is1.38billion km3, fresh water reserves of more than3500km3, accounted for2.53%of total reserves; Our fresh water resources total quantity is2800km3, accounting for6%of global water resources, but our country with a population of1.3billion, only2300m3per capita fresh water resources, is only a quarter of the world’s average level along with the development of society and economy, water status and role is widespread concern in the world, and there are serious shortages on the fresh water resources of our country.Drinking water is indispensable to human survival factors, safe drinking water is the basic requirements of human existence. In recent years, due to the rapid economic development, the technology of the pollution treatment and work is relatively lagging, the country a lot of rivers and urban surface water and groundwater have been varying degrees of pollution, more than half of the seven major rivers of surface water is not suitable for drinking, drinking water safety problem is very serious.According to China’s rural drinking water safety project management practice and exploration’, China’s rural water quality and environmental hygiene situation is very serious, the same as natural inferior water problems, rural drinking water sources are seriously polluted. In2008China’s Water Sector Policy and Risk analysis, pointing out that at present China has a population of more than8000rural drinking water fluoride than drinking water health standards, more than4000ten thousand people were drinking brackish water,2million people affected by arsenic contamination of drinking water.Rural drinking water safety is one of the important marks for rural residents quality of life, is also a measure of social and economic development and an important index of quality of human life. To investigate status of rural drinking water safety, improve and provide the basis for later life, Liaocheng CDC had a water quality monitoring and testing in2008-2011in liaocheng city,so can perfect rural drinking water health monitoring network, promote the broad masses of peasants, fundamentally solve the problem of rural drinking water safety, promote the rapid development of the rural economy and provide reference and basis for social undertakings harmony.ObjectiveThe main purpose of this study is to investigate the rural drinking water quality in recent four years, understand the water quality changes and supply present situation, analyse the current situation and factors,so can provide the reference and basis for taxable security development planning. Specific purpose is as follows:1To explore water quality changes in time and the present situation of water supply in rural area of Liaocheng.2Provide reference and basis for Drinking water safety development planning and building a new socialist countryside.3To ensure the safety of drinking water and effectively improve the level of rural residents quality of life and health,so as to promote the harmonious development of rural economy and social undertakings.MethodAccording to requirements of The National Rural Drinking Water Safety Project of Tenth Five Years Plan, Randomly selected rural security centralized water supply projects had been built in eight counties (city, area) in Liaocheng as monitoring objects. The requirements is that drinking water reached20tons/day (water supply a population of about200people). Every surveillance county (city, area) chooses monitoring according to local conditions, keeping continuous monitoring and relatively fixed. Before samples to investigate the basic situation of water quality monitoring points, fill in the questionnaire and do the record. Centralized water supply monitoring stations both test1time in dry season and wet period, each time collecting each one of treated water and peripheral water. Factory sampling from the water pump room or recently the faucet, peripheral water sampling among residents-using water container direct sampling. Sampling in3-4month and7-8month every year. Detection indexes including sensory properties and general chemical indicators, toxicology index, index of bacteriology, disinfection related indicators. By adopting the method of retrospective epidemiological investigation, Collecting the rural drinking water quality monitoring data in2008-2011in Liaocheng city. Use SPSS16.0for data entry and analysis, statistical inference using chi-square test, with P<0.05for the difference was statistically significant.Conclusion1The system has no effectively facilities.no disinfection equipments, once has the water contaminated with pathogen, the intestinal infectious disease would likely outbreak.2The total qualified rates are low in2008-2011in Liaocheng city.3The qualified rates of Fluoride sulphate and total hardness are very low.which need some departments take targeted measures to ensure the safety of rural drinking water timely.4In addition to the2009.the qualified rates of bacteriology indicators are higher in dry season than in wet period among2008-2011in Liaocheng city.5The sensory traits and general chemical indicators. arsenic and nitrate pass rates of rural areas drinking water in Liaocheng city have no significant difference between2008-2011,that means the drinking water in physical and chemical indicators is stable. Advice1Improve the awareness of rural drinking water safety problems, strengthen the construction of rural drinking water safety work, grasp of water management system2According to economic and social development level and the regional water resource conditions, scientific planning, rational layout.3. Governments at all levels should play a leading role, increasing investment, especially the local fiscal expenditure, to build village-level long-term job security system projects.4Perfect rural drinking water safety monitoring system, and regularly or not monitor them, bulletin the water quality situation, guide farmers to drinking water safety, the government also should play the role of management.5To strengthen water conservation, to ensure the water quality security of drinking water source.6Carrying out the popular science knowledge propaganda and education of rural drinking water safety.7In high fluoride or high hardness water area to add fluoride removal equipment, and ensure the regular replacement of ion exchange resin, reduce the influence of the harmful elements in the water.