DISSOLVED AIR FLOTATION FOR TREATMENT OF PALM OIL MILL EFFLUENT

Abstract

Palm Oil Mill Effluent (POME) is possibly the most controversial wastewater problem facing palm oil producing countries today. The application of the Dissolved Air Flotation (DAF) was presented by various researchers in the mid-1970's as a potential solution to the problem. This report delve into the studies of the optimum choice and combinations of chemical coagulant and flocculant to achieve the best flocculation. Similarly the report investigates the design parameters pertinent to the setting up and management of a large scale DAF. Comparative analysis was made between the pilot scale and an existing prototype unit. Economic analysis of the investment and operation were modelled to provide a comparison with another dewatering process. The results, however, indicate that the application of the OAF on a large scale for the treatment of POME is not viable because of both the economic and management constraints