Feammox-driven iron cycle coupling functional strain and application thereof

By applying Feammox-driven iron cycle coupling functional strains, the simultaneous and efficient removal of nitrogen and phosphorus from aquaculture wastewater was achieved using a mixed bacterial agent of Acinetobacter oryzae and Pseudomonas vesiculosus in the Feammox reaction system. This solved the problems of low nitrogen and phosphorus removal efficiency and slow reaction rate in existing technologies, and reduced energy consumption and equipment investment.

CN122256160APending Publication Date: 2026-06-23TIANJIN NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN NORMAL UNIVERSITY
Filing Date
2026-04-10
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing biological treatment technologies have low nitrogen and phosphorus removal efficiency and slow reaction rates in aquaculture wastewater treatment, making it difficult to achieve simultaneous and efficient removal. They also suffer from high energy consumption and high costs.

Method used

Using Feammox-driven iron cycling coupling strains, and employing a mixed bacterial agent of Acinetobacter oryzae Aci-Ory-524 and Pseudomonas virucides, nitrogen and phosphorus removal were carried out under anaerobic conditions through the Feammox reaction system. Combined with an external current to promote iron cycling, in-situ coupling removal of nitrogen and phosphorus was achieved.

Benefits of technology

It improves nitrogen and phosphorus removal efficiency, reduces equipment investment and energy consumption, achieves simultaneous and efficient removal of nitrogen and phosphorus, and requires no additional iron source. The reaction system is simple and the operating cost is low.

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Abstract

The application discloses a Feammox-driven iron cycle coupling functional strain and application thereof, and relates to a bacterial agent containing Acinetobacter oryzae Aci-Ory-524, wherein the Acinetobacter oryzae Aci-Ory-524 is preserved in the China General Microbiological Culture Collection Center on March 31, 2026, and has an original number of Aci-Ory-524 and a preservation number of CGMCC No. 38114. In-situ coupling removal of nitrogen and phosphorus in aquaculture wastewater is realized, and the bacterial agent is in the form of pure bacteria and mixed bacteria. Physical and chemical property determination is carried out, and an artificial simulation water is used for testing, so that good nitrogen and phosphorus removal effects are achieved.
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