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科技导报  2015 

藻菌固定化用于市政污水深度脱氮除磷及藻体产油研究

DOI: 10.3981/j.issn.1000-7857.2015.14.011, PP. 65-69

Keywords: 微藻,脱氮除磷,生物能源

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Abstract:

污水再生利用是解决水资源与能源危机的重要途径,采用微藻深度处理污水并生产生物质能源是一大热点。针对市政污水深度处理,以活性污泥为固定化细菌,采用小球藻和栅藻,分别比较了固定化藻菌、固定化微藻,以及悬浮态微藻在藻体生长、污水脱氮除磷和微藻产油方面的差异,拟实现对市政污水深度脱氮除磷的同时实现微藻油脂的诱导富集。结果表明,固定化藻菌对氮磷的去除效果优于固定化微藻和悬浮态微藻,且固定化藻菌中微藻油脂质量分数最高。当市政污水NH4+-N和PO43--P的初始质量浓度分别为25和3mg/L时,固定化栅藻菌培养4d后能够完全去除水体中的氮磷,而固定化藻菌中小球藻的油脂质量分数可达到16.5%。

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