Zhang Qianru, research team of Shenyang Institute of ecology, Chinese Academy of Sciences, uses ball milling to improve the performance of biochar in removing Jiale musk

Synthetic musk is a common medicine and personal care product At present, there is no technology for the removal of hhcb from sewage in China, but the conventional sewage treatment technology has little effect on hhcb Therefore, it is an arduous challenge for environmental workers at home and abroad to develop efficient, economic and environmentally friendly functional materials to remove hhcb Biochar has a large specific surface area and high chemical stability, which is difficult to be degraded by microorganisms Its preparation and application can realize waste resource treatment to a certain extent Zhang Qianru, a researcher from the pollution ecological process group of Shenyang Institute of Applied Ecology, Chinese Academy of Sciences, uses the excellent physical and chemical properties of ball milled biochar to enrich the hhcb in the water to be treated into the surface and pores of ball milled biochar through adsorption and distribution, so as to remove the hhcb pollutants in the water efficiently After ball milling, the effect of biochar prepared at high temperature is significantly enhanced For biochar prepared at low temperature (300 ℃), ball milling only increases the surface area; for biochar prepared at high temperature (500 ℃), ball milling increases the surface area and internal surface area at the same time, thus exposing its graphite structure and oxygen-containing functional groups, and then enhances the adsorption of hhcb through surface adsorption and π - π interaction pore filling For 500 ℃ wheat biochar (ws500), 77.9% hhcb was removed due to surface adsorption, 22.1% hhcb was removed due to distribution; for ball milled ws500, 96.7% hhcb was removed due to surface adsorption, and the remaining 3.3% hhcb was removed due to distribution This work highlights the potential of ball milling as an excellent engineering method to improve the adsorption performance of biochar The above achievements were published on science of the total environment (DOI: 10.1016 / j.scittenv 2019.01.005) under the title of "ball milledbiochar for Galaxy removal: coordination performance and governance mechanisms" Researcher Zhang Qianru is the first author and corresponding author of this paper He is supported by general program of National Natural Science Foundation of China (3147055231670516) and national key basic research and development program (No 2018yfc1800704).