1. School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi’an, 710021, P. R. China
2. PEIE Research Chair for the Development of Industrial Estates and Free Zones, Center for Environmental Studies and Research, Sultan Qaboos University, Al-Khoud, 123, Muscat, 123, Oman
3. School of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021, P. R. China