1. 2018 - 2022 Principle Investigator, Integrated Demonstration of Safe Disposal of Multi-source Solid Waste in Qilian Mountain and Other Areas in Gansu Province, supported by National Key R&D Program of China (No. 2018YFC190370)
2. 2012 - 2016 Principle Investigator, Physical-chemical-biological Transformation of Municipal Solid Waste and Production of Pollutants, supported by National Basic Research Priorities Program of China (No. 2012CB719801)
3. 2010 - 2012 Principle Investigator, Hierarchical Structure of Sewage Sludge Floc and the Mechanism of Their Association with Dewaterability, supported by National Natural Science Foundation of China (No. 20977066)
4. 2007 - 2010 Principle Investigator, Hazardous Waste Risk Assessment, Supporting Technology and Operation Demonstration for Disposal Facility, supported by National High-Tech Research and Development Programs of China (No. 2007AA061304)