Water pollution is a certain amount of sewage, waste water, all kinds of waste and other pollutants into the waters, beyond the self-purification of water bodies and the pollutant carrying capacity, resulting in water and sediment of the physical and chemical properties and biological community composition occurred adverse changes in the inherent destruction of the water ecosystem and water features, thereby reducing the water use value phenomenon. Water pollution caused by many factors: the body of water without proper treatment of urban domestic sewage and industrial waste water; application of chemical fertilizers, pesticides and urban pollutants on the ground, washed by the rain, with the surface runoff into water bodies; with the atmosphere the proliferation of toxic substances by gravity sedimentation or precipitation process into the water body and so on. The first one is the main factor of water pollution. The 20th century, 70 years later, with the development of global industrial production and socio-economic prosperity, a large number of industrial wastewater and urban domestic wastewater discharged into water bodies, water pollution is getting worse. These are contaminated water into the plants and animals, human body, causing harm to human pose a major threat to the survival and become human health, economic and social sustainable development, a major obstacle, prevention and treatment of water pollution is that we are most concerned about now topic. In this paper, mainly the main source of water pollution are introduced, and which sum up the dangers of the existing water pollution treatment technology, methods learned studies.
Water pollution is a certain amount of sewage, waste water, all kinds of waste and other pollutants into the waters, beyond the self-purification of water bodies and the pollutant carrying capacity, resulting in water and sediment of the physical and chemical properties and biological community composition occurred adverse changes in the inherent destruction of the water ecosystem and water features, thereby reducing the water use value phenomenon. Water pollution caused by many factors: the body of water without proper treatment of urban domestic sewage and industrial waste water; application of chemical fertilizers, pesticides and urban pollutants on the ground, washed by the rain,
With the surface runoff into water bodies; with the atmospheric dispersion of toxic substances through gravity settling or precipitation process into the water body and so on. The first one is the main factor of water pollution. The 20th century, 70 years later, with the development of global industrial production and socio-economic prosperity, a large number of industrial wastewater and urban domestic wastewater discharged into water bodies, water pollution is getting worse. These are contaminated water into the plants and animals, human body, causing harm to human pose a major threat to the survival and become human health, economic and social sustainable development, a major obstacle, prevention and treatment of water pollution is that we are now
Are most concerned about the topic. In this paper, mainly the main source of water pollution are introduced, and which sum up the dangers of the existing water pollution treatment technology, methods learned studies.
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