1. Master’s Candidate, Dept. of Civil Engineering, Shanghai Univ., 99 Shangda Rd., Shanghai 200444, PR China.
2. Professor, Dept. of Civil Engineering, Shanghai Univ., 99 Shangda Rd., Shanghai 200444, PR China.
3. Lecturer, Dept. of Civil Engineering, Shanghai Univ., 99 Shangda Rd., Shanghai 200444, PR China (corresponding author).
4. Engineer, Shanghai Chengtou Wastewater Treatment Co., Ltd., Shanghai 201203, China..