The topic of water pollution is constantly being raised, especially the issue of groundwater pollution. There are farmers or entrepreneurs in Hangzhou, Zhejiang, Zhejiang and other places who have funded the environmental protection director to swim in the river to attract everyone ’s attention to the severity of water pollution. The director chose to remain silent or refuse, but the awakening of the public's awareness of environmental protection has caused unprecedented concern about water pollution.
The pollution of surface water is obvious, but the pollution of groundwater is shocking. 70% of China's 1.3 billion people drink groundwater, and more than 400 of the 660 cities use groundwater as a source of drinking water. However, according to reports, 90% of urban groundwater in the country has been polluted.
Another set of data also shows that groundwater is facing severe challenges. In 2011, Beijing, Shanghai and other 9 provinces and municipalities evaluated 857 monitoring wells in their jurisdictions. The water quality was 2% of the monitoring wells of type I and II, and 76.8% of the monitoring wells of type IV and V. .
Among the nine provinces and cities, the best water quality is Hainan Province, which is mainly class II, followed by Shanghai and Beijing, and most of them are class III. Heilongjiang and Jiangsu have the highest proportion of class IV water, and Jilin, Liaoning and Guangdong Ningxia's four provinces and regions generally only reach the level of Class V.
The increasing water pollution situation has caused unprecedented attention to the sewage treatment and regeneration industry. In the past two years, the gross profit margin of each region has remained at about 70%, and even some regions have exceeded 100%. The industry has great potential for development.