The history of wastewater treatment.
About water pollution have been filed, especially in the groundwater pollution, hangzhou, zhejiang, wenzhou and other places have farmers or business entrepreneurs under the river swimming, please environmental protection agency to focus on water pollution severity, while the director of environmental protection, chose the silent or refuse, but the people environmental protection consciousness awakening, reached an unprecedented concern about water pollution degree.
Surface water pollution is obvious, groundwater pollution is shocking.
More than 70 percent of China's 1.3 billion people drink groundwater, and more than 400 cities in more than 660 cities use groundwater for drinking water.
But according to the introduction, 90% of the city's groundwater has been polluted.
Another set of data also suggests that groundwater is facing serious challenges.
In 2011, nine provinces and municipalities including Beijing and Shanghai assessed the water quality of the 857 eye monitoring Wells in their districts, which accounted for 2% of the monitoring Wells of class I and II, and 76.8% of the monitoring Wells of class IV and V.
Of the nine provinces and cities, the best water quality is hainan province, mainly in class II.
Shanghai and Beijing are the third class.
Heilongjiang and jiangsu have the highest proportion of water in class IV, while the provinces of jilin, liaoning, guangdong and ningxia only reach the level of V.
Increasing water pollution situation, sewage treatment and renewable industry was an unprecedented attention, two regional gross margin remained at about 70%, and even in some areas more than 100%, the industry development potential is very great.
By the end of 2012, the number of sewage treatment in China and its regeneration industry enterprises reached 213, total assets of 84.413 billion yuan, an increase of 11.43% from the 2011, sales income is 23.664 billion yuan, an increase of 16.16% from the 2011, expanding fast.
Development level is high!