Driven by this policy, the urban sewage treatment market will change. Industry experts believe that in the tide of sewage recycling, hundreds of billions of sewage treatment market is expected to release, and China's independent innovation of sewage recycling technology, process and equipment, such as Bishui, a high-tech environmental protection enterprise with advanced domestic technology, its MBR membrane bioreactor technology, mbr-df double membrane new water source technology and other innovative water treatment technologies may usher in a new wind.
The domestic sewage recycling plan has been speeded up obviously
Since the beginning of this year, the pace of domestic sewage recycling planning has been significantly accelerated. The Environmental Resources Department of the national development and Reform Commission has successively held promotion meetings and expert symposiums to study and promote the drafting of Guidance Opinions and relevant implementation plans of sewage recycling utilization, and promote the construction of a "1 + n" policy framework system for sewage utilization.
According to the plan, by 2023, the level of wastewater utilization in water shortage areas and water environment sensitive areas will be significantly improved. For water shortage areas and water environment sensitive areas, it is necessary to carry out upgrading and transformation of sewage treatment plants in combination with water resources endowment, water environment protection objectives and technical and economic conditions, actively promote the utilization of sewage resources, and promote the use of reclaimed water for municipal miscellaneous use, industrial water and ecological water supplement.
The plan further clarifies the necessity and urgency of the implementation of advanced wastewater treatment and reuse in the new period when the contradiction between supply and demand of water resources is prominent. In addition, in addition to the policy support of the industry top-level planning, the continuous innovation and breakthrough of technology is the key to the smooth implementation of sewage recycling strategy.
Membrane technology has become the "national heavyweight" to promote the utilization of sewage resources
Various advanced treatment processes and membrane treatment processes have attracted much attention due to the upgrading and transformation of sewage treatment plants and the utilization of sewage resources. How to select the best wastewater recycling technology, there are many successful practices at home and abroad.
Singapore is recognized by the international water industry as a successful practitioner to solve the water resource dilemma by scientific and technological innovation. Its government strictly forbids the exploitation of groundwater. It mainly provides water through desalination and recycled water. It has long explored the centralized treatment of domestic and industrial sewage by using advanced microfiltration / ultrafiltration, reverse osmosis membrane and ultraviolet sterilization technology The water was further purified to form high-quality "new water", and large-scale construction of new water plant and seawater desalination plant. In the United States, after the secondary and secondary enhanced treatment, the effluent can be used for municipal greening, car washing, and other advanced treatment including microfiltration, activated carbon adsorption, reverse osmosis and disinfection. The quality of the effluent can meet the drinking water standard and can be used as an important supplement to surface or underground drinking water sources.
With the continuous promotion of favorable policies, more and more domestic enterprises set foot in the field of sewage resource utilization. Among them, the high-tech environmental protection enterprise Bishui has been adhering to the Chinese style independent innovation road for many years, vigorously developing technologies and products with independent intellectual property rights, breaking through the traditional concept and technology of pollution control, adopting membrane water treatment technology, and taking the road of sewage resource development.
The MBR membrane bioreactor technology independently developed by bisource can steadily upgrade municipal wastewater to class IV of surface water, and realize the resource utilization of sewage; mbr-df dual membrane new water source technology can super purify the sewage and upgrade the municipal sewage into high-quality usable water source (reaching the surface water class III). These two technologies won the second prize of the national science and Technology Progress Award in 2009 and 2017 respectively There have been several demonstration cases of stable operation in China, including Huazhong sewage treatment plant, Hubei Wuhan Beihu sewage treatment plant, and Beijing Cuihu new water source plant adopting DF membrane, etc.
Membrane technology enterprises with core competitiveness will usher in a new outlet
According to the calculation by analysts of Tianfeng securities based on seven assumptions such as "utilization rate of reclaimed water" and "growth rate of sewage treatment capacity", it is considered that under the tide of wastewater recycling, the total investment in the construction of renewable water conservancy facilities membrane facilities is expected to be 105.5-21.1 billion from 2021 to 2025, among which, the membrane material market is about 33.3 billion yuan.
With the continuous improvement of wastewater recycling level in water shortage areas and water environment sensitive areas, the demand for advanced treatment and resource utilization in municipal and industrial water treatment may continue to increase. Membrane technology enterprises with core competitiveness in the fields of innovative technology, engineering experience and operation capacity will usher in a new wind.
