Resumen
Large production of sago flour has indeed brought a negative effect to rivers due to improper treatment of Sago factory?s waste before discharging. In order to maintain sustainability in Sago industry, a proper treatment and utilisation of industry waste should be implemented to maintain the continuation of Sago Industry cycle. In this project, we proposed proper treatment of sago waste, sago hampas and Sago Mill Effluent (SME). Sago hampas from sago production can be converted to useful animal feed due to high content of carbohydrate while SME can be treated and utilised to produce biogas and bioflocculant. The inlet of animal feed production will be sago hampas and water which produces animal feed of 10% moisture, wastewater and hot vapour. Sago hampas undergoes dewatering and drying process before packaged into pellets for animal feed distributions. On the other hand, in SME treatment, the inlet will be untreated SME and oxygen gas which will be converted biogas, bioflocculant, biomass sludge, carbon dioxide gas and treated SME. The SME undergoes anaerobic digestion by methanogenic bacteria to produce biogas which is later purified to 99.9% of Methane. The remaining SME undergoes aerobic treatment by bioflocculant producing bacteria to produce bioflocculant. The treated SME is later polished further by phytoremediation process before discharged into river. The COD reduction in anaerobic treatment is 85-95% while in aerobic treatment is 60-70%. The treated SME will follow standard A effluent before been released to the environment. Safety and hazards are important aspects taken into consideration especially in handling flammable biogas and biohazardous bacteria with proper method equipment. All in all, we believe the idea of merging treatment and sago production plants with the benefits from green technology processes is worthy to be considered.