Prof. Dr. Teng-Fei Ma is a researcher at Chongqing Technology and Business University National Research Base of Intelligent Manufacturing Service. He received his Doctorate and Master's degrees in Environmental Science and Engineering from the School of Urban Construction and Environmental Engineering of Chongqing University and graduated as a postdoctoral fellow from the Agricultural Resources and Environment Mobile Station of Southwest University and the Chongqing Academy of Ecological and Environmental Sciences. He mainly studies wastewater treatment microorganisms, microbial water purification technology, and water ecological protection and restoration technology.