With the advancement of industrialization, my country's industrial wastewater discharge has been relatively large. The construction of sewage treatment facilities lags behind, and industrial sewage is discharged without treatment up to the standard, resulting in the continuous deterioration of the water quality of natural water bodies and the serious pollution of water resources. Water pollution has become one of the important factors restricting the sustainable development of my country's economy and society.

Water resources are limited

The total amount of water resources in China is relatively high. Data shows that the total amount of water resources in China has increased from 2,796.2 billion cubic meters in 2015 to 3,096.3 billion cubic meters in 2020. Due to the large population of China, the amount of water resources per capita is relatively small. In 2020, the amount of water resources per capita in my country will reach 2,211 cubic meters. In the arid regions of northwest China, the amount of water resources per capita is even smaller. In recent years, the amount of industrial water and domestic water has been continuously increasing, but water resources are very limited, and the task of purification and treatment of sewage is very important. The sewage must be allocated and optimized for recycling.

(Data show: compiled by the National Bureau of Statistics and China Commercial Industry Research Institute)

Sewage discharge is increasing year by year

Data show that China’s annual sewage discharge has increased from 46.662 billion cubic meters in 2015 to 55.465 billion cubic meters in 2019, with an average annual compound growth rate of 4.41%. China’s sewage discharge is increasing year by year. It is estimated that China’s sewage discharge will reach 579.1 in 2020. One hundred million cubic meters.

(Data source: compiled by the Ministry of Housing and Urban-Rural Development and China Commercial Industry Research Institute)

Development trend of China's environmental protection water industry

1. The development of the industry has been transformed from a capital drive to a joint drive of technology and capital

At present, environmental protection water projects pay more attention to the development and application of advanced technology. Industrial wastewater treatment facilities, as the components of industrial wastewater to be treated are becoming more complex and difficult to handle, it is necessary to integrate a variety of process technologies to achieve stable wastewater discharge standards. Affected by water pollution, the quality of raw water treated by high-quality water supply facilities has deteriorated, and the treatment process needs to be continuously updated to ensure safe water supply and the people's demand for high-quality water supply. The development of the environmental protection water industry has been transformed into a joint promotion of technology and capital.

2, TEPS mode has gradually become an important mode for industrial wastewater treatment

At present, the sewage treatment in my country's industrial parks mainly adopts the model of enterprise pretreatment + park centralized treatment. The sewage disposal company is responsible for the construction and operation of sewage pretreatment facilities, and the third-party sewage treatment service provider is responsible for the investment, construction and operation of the park sewage treatment plant. .

The TEPS model uses total process balance as the main technical means, and is an optimized third-party governance model for environmental pollution. The total process balance is a brand-new pollution control concept and water pollution control model. The total amount of pollutants removed is determined by the pollution source and emission indicators, and the degree of treatment and the distribution of the treatment volume in time and space and the corresponding process routes are automated The technology establishes a dynamic balance between the production process and the end treatment of wastewater, so that the most reasonable treatment process is selected to treat different wastewater and achieve the best technical and economic benefits.

3. The industry is moving towards smart development

With the development of information technology, Internet of Things technology and artificial intelligence, the environmental protection water industry is moving towards an intelligent development path of production intelligence, process equipment, equipment integration, monitoring data and management information. With the continuous development and innovation of technological means, the future environmental protection water industry can realize the systematic integration of human society and environmental business, realize environmental management and decision-making in a more refined and dynamic way, and creatively change the existing business model. Many fields such as smart services give birth to huge market opportunities.