Renjian Deng is a professor in the School of Civil Engineering at Hunan University of Science and Technology. He earned a Bachelor's degree in Water Supply and Drainage Engineering in 2003 and a Master's degree in Port, Waterway and Offshore Engineering in 2005, both from Changsha University of Science and Technology. He also earned a Ph.D. in Municipal Engineering from Harbin Institute of Technology in 2015. He is also a member of the Communist Party of China and the Hunan Provincial Water Supply and Drainage Academic Committee, as well as being on the Young Editorial Board of the Journal of Ecology and Environment. His current research focuses on water treatment theory and technology, resource recovery and utilisation, and the treatment of heavy metal-contaminated wastewater and mine environmental pollution.