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Dairy farm wastewater treatment and biodiesel production by Arthrospira platensis cultivation Dairy farm wastewater treatment and lipid accumulation by Arthrospira platensis
Water Research ( IF 12.8 ) Pub Date : 2017-10-28 , DOI: 10.1016/j.watres.2017.10.057
S. Hena , H. Znad , K.T. Heong , S. Judd

Dairy cattle treated wastewaters are potential resources for production of microalgae biofuels. A study was conducted to evaluate the capability of Arthrospira platensis cultivated in dairy farm wastewater for biodiesel production. The biomass of Arthrospira platensis was found to be 4.98 g L-1 and produced 30.23 wt% lipids to dry biomass cultivated in wastewater which was found nitrogen stressed in photo bioreactor. The extracted lipid displayed a suitable fatty acid profile for biodiesel, although the content of linolenic acid was found a little higher than the standard EN14214. It was found that nitrogen stressed medium increase the total lipid content but temperature and intensities of light were the most important factors to control the quantity of linolenic acid and hence the quality of biodiesel, while the optimum CO2 helped to achieve maximum biomass and triacylglycerols. The Arthrospira platensis offer a good option for the treatment of wastewater before final discharge.

中文翻译:

奶牛场污水处理和生物柴油生产的节旋藻养殖奶牛场污水处理和脂质堆积的节旋藻

经奶牛处理的废水是生产微藻生物燃料的潜在资源。进行了一项研究,以评估奶牛场废水中种植的节肢动物生产生物柴油的能力。板球菌的生物量为4.98 g L -1并产生30.23 wt%的脂质,以干燥废水中培养的生物质,在光生物反应器中发现氮胁迫。尽管发现亚麻酸的含量略高于标准EN14214,但提取的脂质显示出适合生物柴油的脂肪酸谱。发现氮胁迫培养基增加了总脂质含量,但是光的温度和强度是控制亚麻酸的量和生物柴油质量的最重要因素,而最佳的CO 2有助于实现最大的生物量和三酰基甘油。该节旋藻报价为最终排放前处理废水的一个不错的选择。
更新日期:2017-10-28
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