1. College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, Shandong, China
2. Solid Waste Management Research Institute, Beijing Municipal Research Institute of Environmental Protection, Beijing, China
3. College of Environmental and Material Engineering, Yantai University, Yantai, Shandong, China
4. The fourth construction company of China Construction Eight Engineering Division, Qingdao, Shandong, China