ALGAE AS AN ALTERNATIVE FUEL FOR DIESEL
In view of the depleting oil reserves and exponential rise in petroleum prices, the search for alternative sources of fuel is very timely and important. The present paper addresses the underlying issues in biodiesel production from biomaterials and sustainable production and supply of first-generation biofuels, especially the one from jatropha. The agencies and research institutions involved in the production of biofuels and the national and international efforts made in this regard are discussed here. There is also a dire need of a step towards large-scale production and supply of second-generation biofuels,
although in infant stage, to strengthen the world economy in general and Indian economy in particular. However, the production of biofuels are likely to have serious socio-economic implications especially to the lesser developed societies. This needs serious attention from policy makers and public at large.
TYPES OF ALGAE
TYPES OF ALGAE
The word algae represent a large group of different organisms from different phylogenetic groups, representing many taxonomic divisions. In general algae can be referred to as plant-like organisms that are usually photosynthetic and aquatic, but do not have true roots, stems, leaves, vascular tissue and have simple reproductive structures. They are distributed worldwide in the sea, in freshwater and in wastewater. Most are microscopic, but some are quite large, e.g. some marine seaweeds that can exceed 50 m in length.
The unicellular forms are known as microalgae where as the multicellular forms comprise macroalgae.
Algae Biodiesel is a good replacement for standard crop Biodiesels like soy acanolaUp to 70% of algae biomass is usable oilsAlgae does not compete for land and space with other agricultural cropsAlgae can survive in water of high salt content and use water that was previously deemed unusable