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新型单级自养脱氮与反硝化除磷耦合工艺

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Indexed by:期刊论文

Date of Publication:2018-01-01

Journal:安全与环境学报

Included Journals:CSCD

Volume:18

Issue:1

Page Number:257-263

ISSN No.:1009-6094

Key Words:环境工程学;单级自养脱氮工艺;反硝化除磷工艺;单级自养脱氮与反硝化除磷耦合工艺;碳源

Abstract:反硝化除磷菌(Denitrifying Polyphosphate Accumulating Organisms,DPAOs)在缺氧段需要硝氮(NO3--N)作为电子受体进行吸磷,而氨氧化细菌(Ammonia-Oxidizing Bacteria,AOB)和厌氧氨氧化细菌(Anaerobic ammonium oxidation,Anammox)恰好能够产生NO3--N,基于此原理,将反硝化除磷菌与氨氧化细菌和厌氧氨氧化细菌进行联合培养,建立单级自养脱氮与反硝化除磷耦合工艺.该耦合工艺通过3个阶段的培养,在低碳氮磷比的条件下实现COD(Chemical Oxygen Demand)、氨氮及磷酸盐的同步高效去除(>90%).同时探讨了反硝化除磷细菌在不同碳源的条件下,各个化学指标(如挥发性脂肪酸、聚羟基脂肪酸等)的变化趋势及微生物群落多样性的变化情况.

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