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硫自养/异养反硝化协同处理含硝氮废水技术的现状与展望
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Abstract:
传统的反硝化技术以异养反硝化为主，不仅需要外加碳源，而且产泥量大，容易产生二次污染。近年来自养反硝化技术发展迅速，其中硫自养反硝化具有处理效率高、污泥产生量少、能耗低等优点，发展前景良好；但其反应过程中会产生大量H+和硫酸盐，会对出水水质产生影响。为了进一步提高反硝化效率及出水水质，降低产泥量，本文综述硫自养/异养反硝化协同处理技术的研究现状，并对其发展前景进行讨论和展望。
The traditional denitrification technology is mainly heterotrophic denitrification, which not only needs additional carbon source, but also produces large amount of mud, which is easy to produce secondary pollution. In recent years, nitrotrophic denitrification technology has developed rapidly. Among them, sulfur autotrophic denitrification has the advantages of high treatment efficiency, low sludge production and low energy consumption, and has a good development prospect. However, a large amount of H+ and sulfate will be produced in the reaction process, which will affect the effluent quality. In order to further improve denitrification efficiency and effluent quality, and reduce sludge production, this paper reviews the research status of sulfur autotrophic/heterotrophic denitrification co-treatment technology, and discusses its development prospects.
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