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Journal AWWA - Denitrification Using a Membrane-Immobilized Biofilm AWWA期刊-使用膜固定化生物膜进行反硝化
发布日期: 1995-03-01
将固定化细菌细胞技术应用于实验室规模,以选择性去除污染水中的硝酸盐,同时分离反硝化细菌和处理水中的碳能源。双室反应器带有用于固定细菌细胞的微孔膜,平均反硝化速率为5800 mg硝酸盐氮(NO3--N)/m2d膜表面积。观察到碳氮质量消耗比为2.2克有机碳/克氮,处理水中有少量甲醇污染。基于菲克定律的NO3--N去除物理模型和通过固定化结构测量的硝酸盐扩散系数与实验结果有很好的相关性。包括39个参考文献、表格和图表。
Immobilized bacterial cell technology was applied, on a bench scale, to the selective removal of nitrate from contaminated water, together with the segregation of denitrifying bacteria and the carbon energy source from the treated water. The two-chambered reactor, with a microporous membrane for bacterial cell immobilization, performed at an average denitrification rate of 5,800 mg nitrate-nitrogen (NO3--N)/m2d of membrane surface area. A carbon-to-nitrogen mass consumption ratio of 2.2 g organic carbon/gram nitrogen was observed, with a small degree of methanol contamination of the water being treated. A physical model for NO3--N removal based on Fick's law and the measured diffusion coefficient of nitrate through the immobilization structure gave a good correlation with experimental results. Includes 39 references, table, figures.
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发布单位或类别: 美国-美国给水工程协会
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