1. College of Engineering, School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
2. Nanyang Environment and Water Research Institute, Residues and Resource Reclamation Center, 1 Cleantech Loop, Cleantech, Singapore 637141, Singapore
3. Robert Bosch (South East Asia) Pte Ltd., 11 Bishan Street 21, Singapore 573943, Singapore