1. School of Resources and Environmental Engineering, Anhui University, Hefei, People’s Republic of China
2. Burns & McDonnell, Kansas City, MO, USA
3. Department of Civil Engineering, University of Nebraska-Lincoln, Omaha, NE, USA
4. Department of Chemistry, University of Nebraska Omaha, NE, USA
5. Department of Chemical and Biochemical Engineering, University of Iowa, Iowa City, IA, USA