V.O. Ojijo and M.S. Onyango and Aoyi Ochieng and F.A.O. Otieno, Decolourization of Melanoidin Containing Wastewater Using South African Coal Fly Ash. journal = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology. January 2010, vol. 37(1). 58 - 64 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/7435.