New progress has been made in the removal of PPCPS pollutants from the Northern Sciences Institute

In recent years, the production and consumption of drugs and personal care supplies (referred to as PPCPS) have been increasing, leading to the frequency of detection frequency and detection concentration of new pollutants in PPCPS marks in the water environment. Studies have shown that 118 PPCPS and 110 PPCPS were detected in the water of the 5 major water systems and 8 administrative districts/county sewage treatment plants in Beijing.

The conventional processing process of traditional sewage treatment plants is difficult to effectively remove new PPCPS pollutants in sewage. PPCPS remaining in the water into the water environment will cause chronic poisoning and endocrine disorders to aquatic creatures and humans, and can lead to the formation of medical resistance to formation. , Seriously threatening water environmental safety and human health.

In response to the above problems, the R & D team of the Zihuan Institute's Water Resources based on the in -depth investigation of the construction segments of the entire process of urban sewage regeneration and the storage of PPCPS in the storage water body, and developed an electrical catalytic oxidation, single atomic base based on electrical catalytic oxidation, single atomic base PPCPS, which is represented by fenton oxidation and catalytic oxidation. Studies have shown that O3+H2O2 enhanced electro-catalytic technology during the 30min reaction process of ibuprofen reached 93%; Fanton oxidation technology based on the new CU-FE base single atomic catalyst shows Extremely excellent catalytic degradation performance, the removal rate of Bibuprofen in 20min reached more than 93%; the developed nano-catalyst MNXCE1-XO2/γ-AL2O3 catalytic ozone oxidation and single atomic catalyst MNCE-CNO/γ-Al2O3 catalytic oxidation can be catalyzed. Achieve a 100%removal rate of ibuprofen and Antolol in 10min.

The research team further analyzed the three advanced oxidation technologies developed above and the removal effects of the current Tao's NF270 and NF90 membranes. It is found that the four technologies can efficiently remove PPCPS pollutants in water. Among them The effect is the best. In addition, the research team catalyzed the ozone oxygen oxidation process in combination with engineering practice applications. The existence of salt ions and degradation by -products in the water in water may have risks to the safety of recycled water. , Effectively alleviate film pollution, extend the service life of the membrane, and reduce operation and maintenance costs.

Technical contrast analysis

The research team will continue to optimize the structure and process parameters of catalysts later, improve the stability and reliability of catalysts and processes, and provide a complete set of solutions for efficiently removing typical PPCPS pollutants and obtaining high -quality recycled water.

(Ren Xiaojing/Wen Chen Yanhui/Picture)

Public account name: Beijing Institute of Science and Technology, Beijing Science and Technology Research Institute

WeChat: BJAST-WX

Welcome everyone to follow us!

- END -