The adsorption behaviour of copper on fly ash samples obtained from oil-palm waste products was studied using batch stirred-tank methods. In general, the adsorption process achieved equilibrium in about 40 minutes. Adsorption equilibrium data corresponded well to the Langmuir model. The adsorption capacity of the fly ash for copper was shown to be influenced by […]

Oil cell rupturing by ultrasonics is found to be highly efficient under certain conditions.. However, the simultaneous emulsification of oil will impose difficulty in oil separation and recovery. Optimum condition for cell rupturing were found to be at a cell concentration of less than 10% (w/w) with a power output of greater than 200 watts […]