Wensheng Li is the founder and CEO of Yunnan HEXU Environmental Technology Co., Ltd. He is an entrepreneur who has broad vision and innovative spirit, and has nearly 30 years of entrepreneurial and management experience. In the past ten years, he has led the HEXU to specialize in the field of integrated plant of decentralized domestic wastewater treatment and solid waste incineration, and has successively completed R&D of various products such as BESTE, NESTE, CHtank, Urban BESTE, and GCCF. Depending on the excellent stability and innovation of the products, HEXU has developed into one of the leading manufacturers of the field in China.   Dr. Yungui LI is an associate professor of environmental engineering at Southwest University of Science and Technology, China. She is the executive deputy director of International Science and Technology Cooperation Base of Sichuan Province "Low-cost Wastewater Treatment Technology", and technical consultant of Process R&D Department of Yunnan Hexu Environmental Technology Co., LTD. Her main research interests include water pollution control and environmental health. She obtained her PhD degree in Envrionmental Science in Zhejiang University. She has hosted or mainly participated in 8 national or provincial science and technology projects. Dr. Yungui Li has published more than 50 papers in many peer-reviewed journals as the main author or co-author, covering environmental science and engineering field, as well as agri-food chemistry field. She also authorized 7 national invention and utility model patents.   Jianmin Zhang obtained master's degree from Toyohashi University of Technology, Japan. He has over 30 years of experience in Chinese municipal engineering design & research institute and Japanese johkasou manufacturers. The treatment process of BESTE, NESTE, CHtank was completed under his leadership. To date, he has involved in the compilation of 1 national standard, 1 local standard and 3 group standards related to decentralized wastewater treatment, and participated in a Chinese government project named Major Science and Technology project for Water Pollution Control and Treatment.   Dr. Fengyu Wang is the manager of R&D Dept. of Hexu. He received doctorate (PhD) in Water and Environmental Engineering in Ibaraki university, Japan. His research has mainly focused on fundamental and applied research in biological wastewater treatment. To date, he has published 7 publications on Japanese and international journals including main author and co-author.   Dr. Bin Wang, Professor, doctoral/master supervisor, Candidate of academic and technical leader of Sichuan Province. Bin Wang is the vice dean of School of Environment and Resource of Southwest University of Science and Technology, the certified expert of China Engineering Education Accreditation Association, the secretary general of the Teaching Steering Committee on the field of environmental science and engineering of colleges and universities in Sichuan Province, and the vice president of the National Union of colleges and universities majoring in Emergency Technology and Management. Bin Wang is the young editorial board member of Chinese Chemical Letters and Journal of Safety and Environment. Bin Wang has made important contributions in “River/Basin Ecological Environment and Pollution Control”, “Environmental Safety and Remediation Technology of Contaminated soil”. Bin Wang undertakes the sub subject in National Key R&D Program of China, the university-government major scientific research project, national natural science fund project, environment management and ecological protection in major R&D project, international cooperation and exchange program, Sichuan key scientific research project, applied basic research project, and so on. Bin Wang published three academic monographs, obtained second prize of science and technology of Sichuan Province and second prize of natural science of Yunnan province, etc.