A REVIEW ON THE USE OF SUGAR MILLS WASTEWATER USED AS A GROWTH MEDIUM FOR MICROALGAE FEED STOCK AND BIO DIESEL PRODUCTION IN PAKISTAN

Abstract

This review article assesses existing investigation on sugar industry wastewater for cultivating microalgae and its potential for biodiesel production. Pakistan is an agro based industrial economy in developing world. Energy crisis and second largest agro based processing industrial wastewater with high COD and BOD and other nutrients discharge directly in to natural water bodies without treatment due to complexity of process, high in energy consumption. Pakistan is currently serving demographic, economic and energy crisis, due to high growing demands, the situation is worsened to supply non-renewable fuel sources, which are the major cause of global warming and climate change. In this senerio, the study aims to provide sustainable low cost and energy-efficient solutions for sugar mills wastewater treatment and to find renewable viable options which are driving force for country in this developing world. To accomplish these objective, Bio based wastewater treatment system with biofuels production is promising’ alternative and renewable energy source based idea are launched in this review paper. Various feedstock’s has been reviewed for production of biofuels, but much more production efficiency has resulted in micro-algae, the most compelling source of biofuel, and its potentials for brewing wastewater. Pakistan is a tropical archipelago, which can grow microalgae as a reproductive source of biomass, will use wastewater from the sugar industry as a source to produce biofuels. Finally, the BOD, COD and other Toxins are removed and biomass product from microalgae is used as bio energy feedstock in this whole process.