Qingdao University of Technology, Qingdao University of Technology, Jinggangshan University, Jinggangshan University, Jinggangshan University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Nanchang Hangkong University - National-Local Joint Engineering Research Center of Heavy Metal Pollutants Control and Resource Utilization and Jinggangshan University