Supported by the Nation Key Projects on Water Pollution Control and Management and the Strategical Emerging Industry Technological Breakthrough Program of the Guangdong Province, Prof. Wan Jinquan’s team has established the world’s first demonstration plant (with a treatment capacity of 5,000 ton/day) based on acid-free persulfate advance oxidation process, for the advanced treatment of pulping and paper making wastewater from Zhongshan Yongfa Paper Co. The technology has been applied in several full-scale industrial wastewater treatment plants in Guangdong and Hunan Province.