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   Cultivation of Green Microalgae For the Production of Biofuels and Challenges in Biodiesel Manufacture From Microalgae :Review  
DOR 20.1001.2.9920016766.1399.
منبع كنفرانس ملي توسعه فناوري نانو - 1399 - دوره : 5 - پنجمین کنفرانس ملی توسعه فناوری نانو - کد همایش: 99200-16766
چکیده    As fossil fuel prices increase and environmental concerns gain prominence, the development of alternative fuels from biomass has become more important .global energy demand is increasing every day and most is still derived from non-renewable sources. biofuel production from renewable resource has been extensively paid attention as a sustainable alternative for fossil fuel. although numerous reports are available on the production of biodiesel from vegetable oils of terraneous oil-plants, such as soybean, sunflower and palm oils , but in response to the growing unease around global warming, induced by anthropogenic co2 emissions, microalgae were again suggested as a carbon neutral process to produce biofuels . despite receiving increasing attention during the last few decades, the production of microalgae biofuels is not yet sufficiently cost-effective to compete with that of petroleum-based conventional fuels .therefore , a new concept is introduced in this article as an option to reduce the total production cost of microalgae biodiesel. its primary advantages are that it is one of the most renewable fuels currently available and it is also non-toxic and biodegradable and they exhibit rapid biomass production containing high oil contents, at least 15 to 20 times higher than land based oleaginous crops. . it can also be used directly in most diesel engines without requiring extensive engine modifications. here, we review these strategies which include modulating light intensity in cultures, controlling and varying co2 levels and temperature, inducing nutrient starvation in the culture, the implementation of stress by incorporating heavy metal or inducing a high salinity condition, and the use of metabolic and genetic engineering techniques coupled with nanotechnology. cause of the decreasing fossil fuel supply and increasing greenhouse gas (ghg) emissions, microalgae have been identified as a viable and sustainable feedstock for biofuel production
کلیدواژه Microalgae ,Fossil Fuel ,Biodiesel ,Nano-Additive
آدرس Kherad University, Iran

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