[1] Nanyang Technol Univ, Sch Civil & Environm Engn, 50 Nanyang Ave, Singapore 639798, Singapore
[2] Nanyang Environm & Water Res Inst, Residues & Resource Reclamat Ctr, CleanTech, 1 Cleantech Loop, Singapore 637141, Singapore
[3] Abo Akad Univ, Johan Gadolin Proc Chem Ctr, Lab Mol Sci & Engn, Biskopsgatan 8, FI-20500 Turku, Finland
[4] Nanyang Technol Univ, Sch Mech & Aerosp Engn, 50 Nanyang Ave, Singapore 639798, Singapore
[5] Univ Otago, Dept Chem, 70 Union St, West Dunedin 9016, New Zealand