The Total Waste Water Data of China

the total waste water data of China

There is a shortage of fresh water resources in our country, per capita 2300 m3, equivalent to a qurter of the world per capita level, the world in 110. Since 1997, the national urban sewage emissions accounted for nearly 45% of the waste water emissions, to change the governance of water pollution in our country work has been mainly of industrial wastewater treatment, began working as a strengthening of the comprehensive administration of the urban sewage. Urban sewage pollution load for the first time in China in 1999 more than the industrial wastewater pollution load, the key to water pollution control in China is mainly fromthe industrial point source pollution control, gradually into a predominantly urban wastewater pollution control. According to the 2014 China environmental status bulletin published, in 2014, the national wastewater discharge for a total of 46 billion tons of urban sewage emissions by 247. 600 million tons, accounting for total sewage discharge of 53. 8%. Waste water chemical oxygen demand emissions of 13.33 million tons including sewage COD emissions of 8.217 million tons, accounting for waste water COD emissions of 61. 6%, this shows, the grim situation of water pollution in our country, especially urban sewage emissions impact on surface water and groundwater quality appears more prominent. According to relevant statistics, the nearly 80% of the untreated sewage, directly discharged into rivers andlakes, annual emissions of 40 billion m3, causing more than a third of the water is polluted. Experts point out that the water pollution aggravated the shortage water resources, directly threat to drinking water safety and people’s health, affect the economic losses caused by the industrial and agricultural production and crop safety about GNP of 1. 5% ~ 3%, water pollution has become a disasters as floods, droughts and even more serious. The worst effects of the future city’s sewage. Cause serious water pollution in our country one of the main reasons is due to the national urban wastewater treatment rate is low, make a lot of untreated sewage and direct discharge, has led to serious water pollution, and exacerbating water shortages. Plus with the speeding up of urbanization and industrialization, urban sewage quantity increases unceasingly, makes the water environment pollution is becoming more and more serious. The lag of urban sewage treatment, has become China’s regional water pollution prevention goals is one of the most important factors, and seriously restricted the city social economy sustainable Country specializes in urban sewage disposal problem has issued a series of policies and technical provisions, to formulate ”timeline” of the urban pollution standard, so it is urgent to speed up the construction of urban sewage concentrated treatment facilities.

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