Biodiesel From Algae Challenges And Prospects Pdf


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Biodiesel from algae: challenges and prospects.

Metrics details. Microalgae have recently attracted considerable interest worldwide, due to their extensive application potential in the renewable energy, biopharmaceutical, and nutraceutical industries. Microalgae are renewable, sustainable, and economical sources of biofuels, bioactive medicinal products, and food ingredients. Several microalgae species have been investigated for their potential as value-added products with remarkable pharmacological and biological qualities. As biofuels, they are a perfect substitute to liquid fossil fuels with respect to cost, renewability, and environmental concerns.

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Coupling of Algal Biofuel Production with Wastewater

Depleting fossil fuel, soaring prices, growing demand, and global climate change concerns have driven the research for finding an alternative source of sustainable fuel. Microalgae have emerged as a potential feedstock for biofuel production as many strains accumulate higher amounts of lipid, with faster biomass growth and higher photosynthetic yield than their land plant counterparts. In addition to this, microalgae can be cultured without needing agricultural land or ecological landscapes and offer opportunities for mitigating global climate change, allowing waste water treatment and carbon dioxide sequestration. Despite these benefits, microalgae pose many challenges, including low lipid yield under limiting growth conditions and slow growth in high lipid content strains. Biotechnological interventions can make major advances in strain improvement for the commercial scale production of biofuel. We discuss various strategies, including efficient transformation toolbox, to increase lipid accumulation and its quality through the regulation of key enzymes involved in lipid production, by blocking the competing pathways, pyramiding genes, enabling high cell biomass under nutrient-deprived conditions and other environmental stresses, and controlling the upstream regulators of targets, the transcription factors, and microRNAs.

Microalgae have gained enormous consideration from scientific community worldwide emerging as a viable feedstock for a renewable energy source virtually being carbon neutral, high lipid content, and comparatively more advantageous to other sources of biofuels. Although microalgae are seen as a valuable source in majority part of the world for production of biofuels and bioproducts, still they are unable to accomplish sustainable large-scale algal biofuel production. Wastewater has organic and inorganic supplements required for algal growth. The coupling of microalgae with wastewater is an effective way of waste remediation and a cost-effective microalgal biofuel production. In this review article, we will primarily discuss the possibilities and current scenario regarding coupling of microalgal cultivation with biofuel production emphasizing recent progress in this area. World biofuel production has increased sevenfold since but still meets only 2. It is expected that two main energy resources, crude oil and natural gas, will be diminished by


Biodiesel from algae: challenges and prospects some of these challenges, in particular the optimization of algal biomass production and TAG content. Download: Download high-res image (KB) · Download: Download full-size image.


Prospects and Challenges in Algal Biotechnology

Skip to Main Content. A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. Use of this web site signifies your agreement to the terms and conditions. Sustainable Third Generation Microalgae Based Biodiesel Production : Challenges and Opportunities Abstract: Since from centuries humans are utterly relied on the continual use of fossil for fulfilling daily desires, however with the increasing population fossil fuels are decreasing rapidly. Fossil fuels aren't thought as sustainable source of energy.

In the present scenario, rapid industrialization and urbanization have led to a dramatic increase in the levels of various hazardous pollutants in the environment, and this creates a serious threat to humankind. Today, most of the energy production comes from fossil fuel combustion, which is the key source of CO2 emissions. Research studies show that the utilization of microalgae could be the best option for the production of renewable and sustainable energy and for the mitigation of CO2 emission. Production of biofuels from microalgae can be classified as solid biochar , liquid bioethanol, biodiesel, bio-kerosene , and gaseous biogas, bio-syngas, biohydrogen fuels. Algal lipids usually have a higher viscosity than petro-diesel; therefore, the transesterification process is required to decrease the viscosity of microalgal lipids before they can be combusted in the engines.

Biodiesel from algae: challenges and prospects.

Algae are increasingly emerging as one of the most promising sustainable and long-term sources of biomass and oils for fuel, feed food and other co-products.

Tailoring Microalgae for Efficient Biofuel Production

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Introduction

Стратмор что-то задумал. - И не пытайтесь, коммандер, - прошипел.  - Вы рискуете попасть в Сьюзан. Хейл выжидал. Стояла полная тишина, и он внимательно прислушался. Ничего.

Она проклинала Хейла, недоумевая, каким образом ему удалось заполучить ее персональный код и с чего это вдруг его заинтересовал ее Следопыт. Встав, Сьюзан решительно направилась подошла к терминалу Хейла. Экран монитора был погашен, но она понимала, что он не заперт: по краям экрана было видно свечение. Криптографы редко запирали свои компьютеры, разве что покидая Третий узел на ночь. Обычно они лишь уменьшали их яркость; кодекс чести гарантировал, что никто в их отсутствие к терминалу не прикоснется. К черту кодекс чести, - сказала она.  - Посмотрим, чем ты тут занимаешься.

 Может быть, все-таки скажете что-нибудь. Что помогло бы мне? - сказал Беккер. Росио покачала головой: - Это .

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