1. Lecturer, School of Environmental and Safety Engineering, Changzhou Univ., No. 1, Gehu Rd., Changzhou, Jiangsu 213164, China (corresponding author).
2. Professor, School of Environmental and Safety Engineering, Changzhou Univ., No. 1, Gehu Rd., Changzhou, Jiangsu 213164, China.
3. Associate Professor, School of Resources and Safety Engineering, Central South Univ., No. 932, Lushan South Rd., Changsha, Hunan 410083, China.