National Science and Technology Support Program Project - Coal Chemical Wastewater Treatment and Resource Utilization Technology and Demonstration in Arid Regions

Under the guidance of Academician Duan Ning, we took the lead in undertaking the 2014 National Science and Technology Support Program project "Coal Chemical Wastewater Treatment and Resource Utilization Technology and Demonstration in Arid Regions". The bottleneck problem restricting the development of coal chemical industry in arid areas such as Xinjiang is the severe shortage of water resources. It is of great practical significance to save valuable freshwater resources in arid areas such as Xinjiang, reduce the discharge of industrial wastewater, protect fragile ecosystems in arid areas, and achieve sustainable economic and social development. By integrating and optimizing the energy in the process of phenol ammonia recovery, developing innovative waste heat recovery solutions, developing process technologies that save high-temperature steam, optimizing extraction processes, and strengthening equipment, measures are taken to reduce the cost of phenol ammonia recovery and improve the removal rate of difficult to degrade pollutants in wastewater. At the same time, research is conducted on the technology and demonstration of coal chemical wastewater treatment and reuse in circulating cooling water systems. Special bacterial strains are used for enhanced biological treatment of wastewater treated by phenol ammonia recovery, and electrochemical/biological coupling technology is applied to treat reverse osmosis concentrated water and other wastewater. Membrane distillation evaporation crystallization coupling technology is developed for industrial demonstration application to improve the reuse rate of wastewater and achieve near zero discharge of coal chemical wastewater. Demonstration devices/projects are established to solve the problem of industrial scaling up of process technology and technology. Equipment difficulties, Establishing a larger scale industrial demonstration to reduce overall investment, management, and operating costs, providing technical support for the reuse of coal chemical wastewater in circulating cooling water systems. Project implementation can significantly improve the level of wastewater treatment and reuse in the coal chemical industry, ultimately achieving the goal of treating and resourceful coal chemical wastewater in arid areas.

This project has applied for 22 national patents and has been granted 10 patents; Published 18 papers, with 14 included in SCI and EI journals; Participated in/edited 4 national standards; 10 demonstration production lines, 2 provincial and ministerial level scientific and technological achievement appraisal certificates, and 14 research and development of new products, new materials, new devices, new technologies, and new methods.