We cooperate with Harbin Institute of Technology on the R&D and application of sludge disposal. We have jointly built scientific research centers with Shanghai Jiao Tong University, Tianjin University, Shandong Jianzhu University, Qingdao University of Science and Technology and other universities. In cooperation with Shandong University of Technology, we devote ourselves to the R&D and technical services of purification and resource utilization technology for wastewater with high difficulty, high concentration, high salinity and high COD.