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小球藻对奶牛场沼液处理能力及生物质生产的探究
Authors
丰平仲
冯思然
+3 more
朱顺妮
王忠铭
袁振宏
Publication date
1 January 2019
Publisher
Abstract
为资源化处理奶牛场沼液、探究小球藻Chlorella vulgaris NIES-227对奶牛场沼液的处理能力以及生物质利用潜力,在柱式光生物反应器中利用小球藻处理沼液占比分别为25%、50%、75%和100%4种不同浓度的未灭菌污水。研究结果显示,各浓度污水中总氮、总磷和COD的去除率分别为36.0%~92.5%、42.8%~100%和6.9%~32.2%。在沼液占比为25%的污水中氮磷的去除率最高,氨氮、总氮和总磷的去除效率分别可达99.9%、91.0%和100%。微藻在低浓度沼液(25%~50%)中生长状态良好,在沼液占比为50%的污水中可获得最高生物质产率393.6mg(/L·d)。但是在高浓度沼液(75%~100%)中微藻生长受到一定抑制,导致氮磷的去除效果变差。培养期间细菌的数量增长显著,促进了COD的去除。各浓度沼液生物质中总脂、总糖和蛋白质含量分别为13.2%~32.2%、12.3%~27.6%和16.2%~30.9%。实验数据表明,低浓度沼液能产生更多高能量组分的生物质,适合用作生物燃料的开发;高浓度沼液能产生含较多蛋白质的生物质,更适合用作动物饲料
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Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
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oai:ir.giec.ac.cn:344007/20555
Last time updated on 05/12/2019
Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.giec.ac.cn:344007/20557
Last time updated on 05/12/2019