Yuqiang Liu is a research fellow and a director of the Solid Waste Utilization and Disposal Technology Research Office in CRAES. He mainly engages in research and development work in solid waste landfills, solid waste pollution detection. He has presided and participant in multiple national research and development projects, including the National Key R&D Program “Research and Development of Non destructive Monitoring Technology and Equipment for Pollution Risk Sources Leakage”, “Research on Environmental Risk Assessment and Pollution Control Utilization Technology for Simple Garbage Landfills”, “Research and Demonstration of Key Technologies for Centralized Treatment and Disposal of Hazardous Waste”, and “Research on Safety Protection Evaluation Technology for Hazardous Waste Landfills”. He has presided over the revision of multiple national standards, including “Pollution Control Standards for Domestic Waste Landfill Sites”, “Pollution Control Standards for Hazardous Waste Landfill Sites”, and “Pollution Control Standards for General Industrial Solid Waste Storage and Landfill” and others. A scientific research approach has been developed to clarify the identification of environmental risks in landfills, develop pollution control technology plans, and support environmental management decisions. He has published more than 50 academic papers, including more than 20 SCI and EI papers. He has published more than 30 the national patents and 4 monographs.