Abstract

At present, wastewater from white pepper industry causes serious pollution problems, especially in the area around polluted source but the researches on white pepper wastewater haven't been done intensively and extensively. This research proposal presents the wastewater treatment technology that includes the biological treatment process (anaerobic biological and aerobic biological filter reactors) and the local ecosystem to remove the pollutants. This technology is suitable with the realistic conditions of the local areas and minimum cost. White pepper wastewater contains high organic matter, suspended solid concentrations and high colourity but the results show that this technology obtained 97-98% of COD and 90 94% of colour removal efficiencies. The technology has been used for the white pepper treatment plant in Dak Rlap, Dak Nong and achieved satisfactory results.