Analysis of rural water pollution present situation and the reasons

Along with our country economy high speed development, in recent 10 years, our country rural water pollution is more and more serious, water environmental condition worse, most of the heavy metals in water, ammonia nitrogen, total phosphorus, chemical oxygen consumption, escherichia coli, cationic surfactants and other indexes had different degrees of paint. The characteristics of the rural non-point source pollution is pollution variety, large quantity, wide distribution, non-point source monitoring, management and pollution control is more complex. Exist in most rural towns nearby rivers are polluted, not only caused food production, but also makes our country of the people in the rural area drinking water safety not guaranteed basic. According to the survey, 88% of the population in China, 33% of the deaths are directly related to life water is not clean. Rural water environment deterioration, not only directly affects the economic benefits of industrial and agricultural production, but also not conducive to economic development and stability of the society.

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the cause of water pollution in rural area in China. 2. 1 use of chemical fertilizers, pesticides and sewage irrigation

the reduction of rural organic fertilizer application and nitrogen, phosphorus and potassium fertilizer is not reasonable use and the rapid growth of the chemical fertilizer use, the result is unbalanced NPK use, soil harden and cultivation of poor quality, low utilization rate of fertilizer, soil and water loss, cause pollution of surface water, groundwater, lake eutrophication [ 2] 。 The amount of pesticide in China from 20 in 1989. 620000 t increase to 39 in 1997. 450000 t. Pesticides in water body pollution mainly comes from: pesticide applying directly to the water; Pesticides by rain or irrigation water from farmland to migration of water; Pesticide production, processing enterprises of wastewater discharge; Pesticide residue in the atmosphere as rain into the water; Pesticides in use process, settlement of droplets or dust particles in the wind drift into the water; Spray cleaning tools and instruments, etc. In general, only 10% ~ 20% of pesticides adhesion on crops, while 80% loss in soil, water and air, and under irrigation or precipitation eluviation of groundwater pollution. In addition, because a large number of untreated waste water for irrigation, water paint, irrigation area of blind development, has caused the serious pollution of soil, crop and groundwater. Sewage irrigation has become one of the main causes of deterioration of rural environment in China, directly harm the sewage irrigation area drinking water safety. Wastewater irrigation problems mainly displays in: one is the sewage treatment can't keep up with, wastewater irrigation water quality, urban and industrial wastewater is low, lack the necessary sewage treatment measures.

2. 2 living sewage and waste pollution

a huge number of living garbage in our country as well as industrial waste, living garbage utilization rate is extremely low, open-air stored in suburban and rural, mostly not only occupies large tracts of arable land, may also spread virus bacteria, leachate pollution of surface water and groundwater, it leads to the deterioration of the ecological environment. A large amount of waste generated and accumulated, exacerbated by the deterioration of rural ecological environment

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3 township enterprises for reducing emissions of pollutants of reform and opening up has brought the rapid development of township enterprises, led to the recovery and the rise of rural small towns. Because the township enterprise has scattered layout, small scale and poor management features, such as serious environmental pollution, the surrounding township enterprises every year a large number of untreated pollutants emissions directly. Among them, the wastewater discharge of 3 billion t, chemical oxygen demand (cod) emissions of 3 million t, 30 million t, solid waste emissions seriously pollute the water environment of the countryside. Many of the township and village enterprises ( Mainly concentrated in papermaking, printing and dyeing, electroplating, chemical, metallurgical, mining, machinery processing, building materials, etc) Production process of untreated wastewater directly to the county, reservoirs and farmland, a large number of mixed and disorderly heap of industrial solid waste, living garbage and produce the secondary pollution of surface water and groundwater. Especially in recent years, the city of pollution to the environment after the tough sanctions, many polluting enterprises moved to the suburbs or small towns, some electronic and mechanical waste garbage items are also moved to the countryside. At present, the rural industrial pollution has made the country's 200000 km2 land suffered severe damage, further deepening the rural water environment pollution.

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4 environmentally-controlled agro-systems pollution with the improvement of urban and rural people's living standard, people for meat consumption demand, consumption types also from pigs to cattle, sheep, birds, etc. To develop in the direction of diversification. Around livestock and poultry breeding industry get rapid development in our country, has set up a large number of farms near suburban town, from the original rural scattered farming into centralized farming, leading to the waste treatment of animal manure and pollution problems.

countries also attaches great importance to the safety of rural drinking water, and spend a lot of money to improve the construction of water treatment equipment engineering, improve the rural drinking water quality, but we must protect our water resources, prevent the drinking water source of water pollution, we filter the source water treatment equipment co. , LTD. , is to form a complete set of research and development, according to rural drinking water quality to design the water treatment process, after a multipolar filtering, water quality has reached the requirement of rural drinking water, the products of our company in zhejiang, jiangxi, hubei and other regions has been very good evaluation.