Recently, the list of winners for the "Excellent Scientific Research Achievement Award (Natural Sciences and Engineering Technology)" of the Ministry of Education for the year 2025 has been officially announced. Led by Beijing Jianzhu University and jointly completed by China Construction Environmental Energy Technology Co., Ltd., Harbin Institute of Technology, China Academy of Environmental Sciences and other unitsKey technologies and applications for coordinated control of urban rainwater runoff and water environment quality assuranceThe project, with its significant technological innovation and broad prospects for promotion and application,Won the second prize for engineering technology research achievementsPreviously, this achievement had been evaluated by the authoritative achievement appraisal organized by the Chinese Society of Environmental Sciences and was assessed to meet the requirementsInternational leading level.

The Excellent Achievements Award for Scientific Research of the Ministry of Education (Natural Science and Engineering Technology) is a national level important award established to recognize collectives and individuals who have made significant breakthroughs and innovations in natural science research, technological inventions, and engineering technology. This award aims to encourage technological innovation and achievement transformation, promote scientific and technological progress and social development. It is an important manifestation of the achievements of Chinese universities and industry university research cooperation units in the field of science and technology, with high academic recognition and social influence. This award is a full recognition of the achievements made by China Construction Environmental Energy in adhering to the deep integration of industry, academia and research, and overcoming key challenges in the industry.
The project has broken through the traditional single mode of "quick drainage at the end", established and developed a new theory and technical equipment covering the key links of "infiltration and emission reduction - diversion and waste water - overflow control", and built a multi-scale evaluation guarantee system. It has been successfully applied in dozens of national sponge cities, and has achieved significant economic, environmental and social benefits.
As a core participant and key technology research unit in the project, China Construction Environmental Energy has contributed independently innovated core technology equipment in the precise control of overflow pollution. Among them, the "Intelligent Interception Technology for Stable Storage in Separate Warehouses" cleverly utilizes the characteristic of stable sedimentation in each warehouse through the design of storage tanks and compartments, solving the industry problem of slow settling after dilution of high concentration incoming water, achieving precise interception and efficient storage of high concentration polluted rainwater, and improving the system's impact resistance. The efficient combination of the "magnetic adsorption overflow rapid purification equipment" is a major breakthrough in terminal rapid purification technology. This equipment forms high-density magnetic flocs of pollutants by adding magnetic media during the coagulation process, and then uses ultra-high strength permanent magnetic disks to quickly separate pollutants within 30 seconds with a residence time of only 4-6 minutes. It has significant advantages of small footprint and high efficiency. This equipment has previously won the second prize of National Science and Technology Progress Award. The two technologies constitute the key links of the "source process end" full process overflow pollution control technology system, providing core support for urban pollutant reduction and water environmental quality assurance.

△ Super magnetic separation water purification equipment
△ Rainwater interception and storage system - regulating tank
Application Cases
Yaohai District, Hefei City
Initial rainwater interception and storage project of Nanfei River

The project is jointly constructed by China Construction Xinjiang Engineering (Group) Co., Ltd. and China Construction Environmental Energy Technology Co., Ltd. The project includes one 30000 m ³ storage tank, a pipeline network storage of 15000 m ³, approximately 3.1km of d1200-d3000 interception pipes, and four interception wells. The project covers an area of approximately 45.14 acres and has a service area of 22.6km ². The implementation of this project has reduced the pressure of urban waterlogging, effectively improved the water quality indicators of the main and tributary rivers of Nanfei River, and achieved an annual reduction of 48.2 tons in COD, 14.7 tons in ammonia nitrogen, and 1.02 tons in total phosphorus. It has become a benchmark for rainwater regulation and storage in the industry and has been selected as an excellent case in the water industry.
Shaanxi Xi'an Xiaozhai Regional Sponge City PPP Project
The project adopts China Construction Environmental Energy's rainwater interception and storage equipment, with a total storage capacity of 98000 m ³. The underground storage tank is equipped with inlet control equipment to control the entry of rainwater into the storage tank; Set up slag interception equipment to intercept impurities in water; A flushing device is installed in the underground storage tank to flush the sediment at the bottom. Effectively control the initial rainwater pollution in the Xiaozhai area, improve the water quality of the area, and alleviate urban waterlogging.
Initial Rainwater Treatment Project of Sihe River in Maojian District, Shiyan City

This project adopts the EMUM ultra magnetic separation treatment technology independently developed by China Construction Environmental Energy. A 30000 m ³/d initial rainwater treatment station will be built in Maojian District, Shiyan City, Hubei Province. The integrated plant station mode of rapid rainwater purification and treatment will reduce rainfall pollution and solve the problem of initial rainwater direct discharge pollution in the Sihe River Basin. Through technological innovation, rainwater purification and recycling will be accelerated, reducing pollution to natural water bodies and providing new ideas for the comprehensive management of small watersheds.