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首页> 外文期刊>African Journal of Biotechnology >Potential of wastewater grown algae for biodiesel production and CO2 sequestration
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Potential of wastewater grown algae for biodiesel production and CO2 sequestration

机译：废水藻类用于生物柴油生产和二氧化碳封存的潜力

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Algae have been proposed as a potential renewable fuel source. Photosynthetic CO2fixation to substrates that can be converted to biodiesel by microalgae is thought to be a feasible technology with energy-saving and environment-friendly approach. In the present study, potential of microalgae, from wastewater stabilization pond, as a feedstock for biodiesel production and?CO2?sequestration was evaluated.?Mixed algae sample showed the highest CO2?fixation rate, followed by?Chlorella?sp.,Scenedesmus incrassatulus,?Scenedesmus dimorphus?and?Chroococcus?cohaerens(2.807, 1.627, 1.501, 1.270 and 0.786?g L-1d-1,?respectively). Nile red stain was used for detection of lipid in microalgal sample which was further extracted and analysed by gas chromatography (GC). The main fatty acids present in the mixed algae sample were fatty acids with C14–C18 (>98%) that are generated after natural CO2sequestration.?At ambient CO2?concentration, total fatty acid methyl esters (FAME) mainly comprised of myristic acid (C14:0), 0.0718%; palmitic acid (C16:0), 2.558%; octadecenoic acid (C18:1), 28.98% and linoleic acid (C18:2), 12.54% which makes the microalgal biomass a suitable feedstock for biodiesel production and?CO2mitigation.
机译：藻类已被提议作为潜在的可再生燃料源。通过藻类将光合作用固定在基质上，可以通过微藻将其转化为生物柴油，这是一种节能且环保的可行技术。在本研究中，评估了废水稳定池中微藻作为生物柴油生产和“ CO2”隔离的原料的潜力。“混合藻类”样品显示出最高的CO2固定率，其次是“小球藻”，Scenedesmus incrassatulus ，Scenedesmus dimorphus和Chocococcus cohaerens（分别为2.807、1.627、1.501、1.270和0.786？g L-1d-1）。尼罗红染色用于检测微藻样品中的脂质，将其进一步提取并通过气相色谱法（GC）进行分析。混合藻类样品中存在的主要脂肪酸是天然CO2隔离后产生的C14–C18（> 98％）脂肪酸。在环境CO2浓度下，总脂肪酸甲基酯（FAME）主要由肉豆蔻酸组成（ C14：0），0.0718％;棕榈酸（C16：0），2.558％;十八碳烯酸（C18：1）占28.98％，亚油酸（C18：2）占12.54％，这使微藻生物质成为生产生物柴油和减少CO2排放的合适原料。

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