评价小球藻（Chlorella sorokiniana），它分离自当地市政污水，可同时用于营养物去除和生物柴油生产。
Evaluation of Chlorella sorokiniana isolated from local municipal wastewater for dual application in nutrient removal and biodiesel production.
机构信息
Botany Department, Faculty of Science, Benha University, Benha, 13518, Egypt.
New Energy Department, School of Energy and Power Engineering, Jiangsu University, Zhenjiang, 212013, China.
出版信息
Bioprocess Biosyst Eng. 2019 Mar;42(3):425-433. doi: 10.1007/s00449-018-2046-5. Epub 2018 Nov 21.
The isolated microalga Chlorella sorokiniana BENHA721_ABO4 was grown in Bold's basal medium (BBM) as a control, municipal wastewater (WW), and wastewater enriched with BBM elements (WW+). Cultivation in WW+ showed the highest cell number which represented 25.3 and 47.3% over that grown in WW and BBM, respectively. However, rapid growth in WW+ was accompanied by significant reduction in lipid content. Due to lipid accumulation in WW, it showed the maximum significant lipid productivity of 16.2 mg L day. Microalgae cultivation in WW for 10 days showed 74.2, 83.3, and 78.0% removal efficiency for NO-N, NH-N and TP, respectively. In addition, growth in WW significantly reduced polyunsaturated fatty acids by 36.0% with respect to BBM in favor of monounsaturated fatty acids. The present results confirmed that C. sorokiniana isolate BENHA721_ABO4 grown in secondary effluent municipal wastewater offers real potential for future application in wastewater treatment and biodiesel production.
分离出的小球藻 Chlorella sorokiniana BENHA721_ABO4 在 Bold 基础培养基 (BBM) 中生长作为对照，城市污水 (WW) 和富含 BBM 元素的废水 (WW+)。在 WW+中培养表现出最高的细胞数量，分别比在 WW 和 BBM 中生长高出 25.3%和 47.3%。然而，WW+中的快速生长伴随着脂质含量的显著降低。由于 WW 中存在脂质积累，其表现出最高的显著脂质生产力为 16.2 mg L day。在 WW 中培养 10 天，NO-N、NH-N 和 TP 的去除效率分别达到 74.2%、83.3%和 78.0%。此外，与 BBM 相比，WW 中的生长显著降低了 36.0%的多不饱和脂肪酸，有利于单不饱和脂肪酸。本研究结果证实，从二级出水城市污水中分离出的小球藻 BENHA721_ABO4 对未来在废水处理和生物柴油生产中的应用具有很大的潜力。
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