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  • harvesting economics and strategies using centrifugation for cost effective separation of microalgae cells for biodiesel applications

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 501
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     inefficient or energy-intensive microalgal harvesting strategies for biodiesel production have been a major setback in the microalgae industry. harvesting by centrifugation is generally characterized by high capture efficiency (>90%) under low flow rates and high energy consumption. however, results from the present study demonstrated that by increasing the flow rates (>1 l/min), the lower capture efficiencies (<90%) can be offset by the larger volumes of culture water processed through the centrifuge, resulting in net lower energy consumption. energy consumption was reduced by 82% when only 28.5% of the incoming algal biomass was harvested at a rate of 18 l/min by centrifugation. harvesting algal species with a high lipid content and high culture density could see harvesting costs of $0.864/l oil using the low efficiency/high flow rate centrifugation strategy as opposed to $4.52/l oil using numbers provided by the department of energy for centrifugation harvesting.

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