1. Chemical Engineering Department, Center of Contaminant Control & Utilization, Universiti Teknologi PETRONAS, Bandar Sri Iskandar, Perak, Malaysia
2. Chemical Engineering Department, Institiute of Contaminant Management, Universiti Teknologi PETRONAS, Bandar Sri Iskandar, Perak, Malaysia
3. Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Sri Iskandar, Perak, Malaysia