His main focus is in the area of in-situ remediation of organic and heavy metal contaminated land, groundwater, and sediment. He has developed cost-effective, environmentally-friendly technology and products to remediate persistent organic contaminants and formulated environmentally-friendly chemical and biochemical products for in-situ sediment remediation. Previously, he worked as an environmental research chemist at FMC Corporation. He received his M.S. and Ph.D. at Princeton University, and his B.S. from the School of Chemistry and Molecular Engineering, Peking University, Beijing, China.