黑暗条件下普通小球藻处理废水的研究

Study on Wastewater Treatment by Chlorella vuganis under Dark Condition

DOI：10.3969/j.issn.1673-1689.2012.09.007

中文关键词: 普通小球藻 废水处理 活性污泥 异养

英文关键词: Chlorella vuganis wastewater treatment activated sludge heterotrophism

基金项目:国家自然科学基金项目(20707007)

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中文摘要:

通过光暗条件下普通小球藻的废水处理、黑暗条件下菌藻协同处理废水、黑暗条件下普通小球藻可持续生长的实验对小球藻黑暗条件下废水处理进行了研究。结果表明,黑暗条件下小球藻对COD的去除强于光照条件,对氮磷的去除不如光照条件。在黑暗、静置条件下,藻菌混合体系对废水中COD和氮磷的去除以小球藻为主导;在黑暗、摇床条件下,藻菌混合体系对废水中COD和氮磷的去除以活性污泥为主导;而且,黑暗条件下藻菌混合并不会出现两者互利共生强化废水处理的效果;小球藻能够在黑暗条件下长期生长并稳定地处理废水。

英文摘要:

The wastewater treatment by Chlorella vuganis under light and dark condition,and by algae-bacterium system under dark condition were studied,the Chlorella vuganis’s sustainable growth under dark condition was also studied.The results showed that the removal of COD under dark condition was better than light condition,but TN&TP were on the contrary.Chlorella vuganis played a key role in removal COD,TN,TP in the mixed system of Chlorella vuganis and activated sludge when stationarily incubated under dark condition.However,activated sludge played a key role in removal COD,TN,TP in the mixed system when shakingly incubated under dark condition.What’s more,the mixture of algae and bacterium couldn’t have an effect on mutualism and improved the efficiency of wastewater treatment,and Chlorella vuganis could grow and treat wastewater sustainably under dark condition.

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