1. School of Industrial Technology, Bioprocess Technology Division, Universiti Sains Malaysia, 11800 Penang, Malaysia
2. Fellow of Centre for Global Sustainability Studies, Universiti Sains Malaysia, 11800 Penang, Malaysia
3. School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia
4. School of Chemical Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia
5. Faculty of Bioengineering and Technology, Universiti Malaysia Kelantan, 17600 Jeli, Kelantan, Malaysia
6. Indah Water Konsortium, Lorong Perda Utama 13, Bandar Perda, 14000 Bukit Mertajam, Penang, Malaysia