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首页> 外文期刊>Ecological engineering: The Journal of Ecotechnology >Heterotrophic cultivation of microalgae using aquaculture wastewater: A biorefinery concept for biomass production and nutrient remediation
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Heterotrophic cultivation of microalgae using aquaculture wastewater: A biorefinery concept for biomass production and nutrient remediation

机译:水产养殖废水的微藻培养:生物质生产和营养修复的生物遗工概念

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Cultivation of microalgae utilizing wastewater substrate could form a sustainable biorefinery with double benefit of biomass generation and nutrient remediation. In this study potential of aquaculture wastewater is evaluated for cultivation of Chlorella sorokiniana in heterotrophic mode for generation of high value biomass. Nutrient removal potential is also assessed. Aquaculture wastewater with 400 mgL(-1) sodium nitrate supplementation resulted in biomass productivity of 498.14 mgL(-1)d(-1). The biomass generated showed lipid productivity of 150.19 mgL(-1)d(-1), carbohydrate productivity of 172.91 mgL(-1)d(-1) and protein productivity of 141.57 mgL(-1)d(-1). The nutrient removal efficiencies were 75.56% for ammonium, 84.51% for nitrates, 73.35% for phosphates and 71.88% for COD (chemical oxygen demand). The findings of this study underline the potential of aquaculture wastewater for production of valuable microalgal biomass which can be utilized for biofuels or feed application. This biorefinery concept also polished aquaculture wastewater which can be effectively reused. (C) 2016 Elsevier B.V. All rights reserved.
机译:利用废水底物的微藻培养可以形成可持续的生物素,具有生物量产生和营养修复的双重效益。在这项研究中,评估水产养殖废水的潜力,用于培养HeateroRophic模式,用于产生高价值生物质。还评估了营养去除潜力。水产养殖废水具有400 mgL(-1)硝酸钠补充,导致生物质生产率为498.14 mgl(-1)d(-1)。产生的生物质显示出脂质生产率为150.19mg(-1)d(-1),碳水化合物生产率为172.91mg(-1)d(-1)和141.57mg1(-1)d(-1)的蛋白质生产率。碳酸铵营养去除效率为75.56%,硝酸盐84.51%,磷酸盐73.35%,鳕鱼(化学需氧量)为71.88%。本研究的结果强调了水产养殖废水的潜力,用于生产有价值的微藻生物量,可用于生物燃料或进料应用。这种生物遗料概念也抛光了水产养殖废水,可以有效地重复使用。 (c)2016年Elsevier B.v.保留所有权利。

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