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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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沼液培养的普通小球藻对co2的去除
DOI: 10.3724/SP.J.1145.2011.00700, PP. 700-705
Keywords: 普通小球藻,沼液,氮磷去除,co2去除,污水处理
Abstract:
利用微藻固定co2和处理污水已成为微藻应用的一个重要研究方向.利用营养丰富的沼气发酵废液培养小球藻，藻种经驯化后在不同浓度沼液中能良好生长.小球藻在高浓度的co2中有较好的生长和较强的耐受能力，在1.5%co2通气下生物量最高.在此基础上考察了沼液中小球藻对co2的去除情况.结果表明，提高小球藻生长速率和co2浓度可以增加小球藻对co2的去除量，降低通气也可提高co2去除率.在1.5%co2浓度、通气量60mlmin-1条件下，co2去除率可达30.61%；在10%co2浓度、通气量100mlmin-1时最高去除量为279.7mgl-1h-1.采用六管串联通气培养小球藻去除粗沼气中的co2，去除量为(205.80±13.20)mgl-1h-1，去除率为60.32%±3.73%.在同样的通气量下，co2的去除量与单管培养相近，去除率是单管培养的近6倍，因此小球藻对沼气中的co2具有良好的去除效果.图4表2参17
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