The core data of this paper: the quantity of reclaimed water in China.
Reclaimed water is mainly used for urban miscellaneous use, environmental water and industrial water.
Reclaimed water is reusable reclaimed water, and its water quality is between the upper water (water supply) and the lower water (drainage). At present, domestic reclaimed water is mainly used for urban miscellaneous use, environmental water and industrial water. Cities should plan reclaimed water reuse according to local conditions. There are few mature cases of reclaimed water reinjection into farmland in China, but in fact, the drainage from domestic sewage treatment plants, especially the sewage treatment facilities at county and township levels, is mainly discharged into the fields by surrounding farmers to irrigate crops, and there is no clear research result on whether it is harmful to crops. Reclaimed water can be reused to replenish groundwater, but it needs high quality reclaimed water. After advanced treatment, it can meet the requirements of water replenishment and must not pollute groundwater. Therefore, the biggest problem of reusing underground supplementary water may be the cost of regeneration treatment.
The water utilization of reclaimed water increased 18.9% year-on-year.
With the economic development and social progress, the demand for water resources in all walks of life is increasing. The state attaches great importance to water conservation and actively seeks various ways to alleviate the contradiction of water shortage. Therefore, reclaimed water has become the focus of national attention, and many policies have been introduced to promote the utilization of reclaimed water. From 20 15 to 202 1 year, the amount of reclaimed water conservancy in China increased year by year. In 20021year, the amount of urban reclaimed water in China was 16 1 100 million cubic meters, an increase of 18.9% compared with 2020, accounting for 23.438+0 of the total urban water supply.
The competition in reclaimed water reuse industry is fierce.
The reclaimed water recycling industry in China is still in the primary development stage. Therefore, at present, China's reclaimed water recycling industry has low concentration and fierce competition. A few enterprises have certain technical advantages in some fields of water treatment, and compared with foreign countries, the scale of enterprises in the industry is small. Comprehensive water companies such as world water giants, large-scale water professional investment companies (state-owned or private), non-water investment groups (state-owned or private), water listed companies and local water companies dominate the reclaimed water market in China. Representative enterprises include Veolia, Suez Group, Times Water and Berlin Water. , as follows:
During the "Fourteenth Five-Year Plan" period, the production capacity of newly built, rebuilt and expanded reclaimed water shall not be less than150,000 cubic meters/day.
In terms of investment and construction of reclaimed water reuse industry, according to relevant policy planning, during the "Twelfth Five-Year Plan" period, the planned investment in urban sewage treatment and recycling facilities nationwide is nearly 430 billion yuan, of which 30.4 billion yuan is invested in the construction of reclaimed water utilization facilities. During the "Thirteenth Five-Year Plan" period, the investment in urban sewage treatment and recycling facilities was about 564.4 billion yuan, and the investment in new reclaimed water production facilities was 654.38+058 billion yuan. During the "Fourteenth Five-Year Plan" period, the production capacity of newly built, rebuilt and expanded reclaimed water shall not be less than150,000 cubic meters/day.
In June, 20021,the National Development and Reform Commission and the Ministry of Housing and Urban-Rural Development jointly issued the Tenth Five-Year Development Plan for Urban Sewage Treatment and Resource Utilization. The Plan clarifies that by 2025, the blank areas of domestic sewage direct discharge and collection and treatment facilities in urban built-up areas will be basically eliminated, and the national centralized collection rate of domestic sewage will strive to reach over 70%; The sewage treatment capacity of cities and counties basically meets the needs of economic and social development, and the sewage treatment rate of county towns reaches over 95%; The utilization rate of reclaimed water in water-deficient cities above prefecture level in China has reached more than 25%, Beijing-Tianjin-Hebei has reached more than 35%, and water-deficient cities in the middle and lower reaches of the Yellow River have reached 30%. The harmless disposal rate of municipal sludge reaches over 90%.
The Plan puts forward detailed technical requirements for the construction of sewage treatment and resource utilization facilities, emphasizing strengthening the construction of reuse facilities and promoting the resource utilization of sewage. In Beijing, Tianjin and Hebei, the Yangtze River Economic Belt, the Yellow River Basin, along the South-to-North Water Transfer Project, arid areas in northwest China and coastal water-deficient areas, demonstration cities for sewage resource utilization will be built, and supporting infrastructure will be planned to realize the large-scale utilization of reclaimed water.
For more research and analysis on this industry, please refer to the Analysis Report on Market Foresight and Investment Strategic Planning of China Water Industry Research Institute.