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饮用水中生物硝酸盐去除工艺的研究进展

Biological nitrate removal processes from drinking water supply-a review.

机构信息

Department of Environmental Health Engineering, Health Sciences Research Center and Faculty of Health, Mazandaran University of Medical Sciences, Sari, Iran.

出版信息

J Environ Health Sci Eng. 2013 Dec 19;11(1):35. doi: 10.1186/2052-336X-11-35.

Abstract

This paper reviews both heterotrophic and autotrophic processes for the removal of nitrate from water supplies. The most commonly used carbon sources in heterotrophic denitrification are methanol, ethanol and acetic acid. Process performance for each feed stock is compared with particular reference nitrate and nitrite residual and to toxicity potential. Autotrophic nitrate removal has the advantages of not requiring an organic carbon source; however the slow growth rate of autotrophic bacteria and low nitrate removal rate have contributed to the fact that relatively few full scale plants are in operation at the present time.

摘要

本文综述了从供水系统中去除硝酸盐的异养和自养过程。在异养反硝化中最常用的碳源是甲醇、乙醇和乙酸。每种原料的工艺性能都与硝酸盐和亚硝酸盐的残留以及毒性潜力进行了比较。自养硝酸盐去除具有不需要有机碳源的优点;然而,自养细菌生长缓慢且硝酸盐去除率低,这导致目前实际运行的大型工厂相对较少。

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