The uncertainty in the price of petroleum crude and the fact of depleting resources forces to the search of new and renewable energy. Biodiesel are assumed to be promising alternative to traditional petroleum fuels, biodiesel or Fatty acid methyl esters (FAME) can be produced from vegetable oils. Large scale production of biodiesel increased in the past decade, but the usage of conventional vegetable oils for the production of biodiesel ends in food vs fuel crisis. The approach of biodiesel production from microalgal oil acts as a suitable alternative to these situations, which again leads to the waste disposal problems. These production facilities leaves enormous amounts of byproducts which are a threat to the environment which results in problem over the disposal of these effluents shoots up the cost of biodiesel, on the other hand usage of conventional vegetable oils for the production of biodiesel ends in food vs fuel crisis. Integrated biorefinery systems can be a suitable alternative to overcome the pitfalls, in simple a biorefinery can be termed as zero waste technology. Several researches are under progress to study the efficiency of various types of biorefinery approach. This paper discusses about the various options available in the area of microalgal biorefineries for the effective utilization of biomass feedstock thereby reducing the wastes generated.