A method and application of using Acinetobacter HH and Chlorella MHQ2 to treat wastewater and produce plant growth promoter products

The combined use of Acinetobacter HH and Chlorella MHQ2 to treat food wastewater has solved the problems of difficulty in treating food wastewater and resource utilization. It has achieved efficient removal of COD and TP in wastewater, promoted the accumulation of polysaccharides and plant growth, provided liquid fertilizer, and achieved harmless and resource-based treatment of wastewater.

CN119662492BActive Publication Date: 2025-09-26BEIJING FORESTRY UNIVERSITY
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Patent Information

Application Number
CN202510147936.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-09-26
Estimated Expiration
2045-02-11

AI Technical Summary

Technical Problem

The treatment of food wastewater is difficult and costly. Existing bacteria-algae coupling technology fails to effectively remove phosphorus, nitrogen, and COD from wastewater, and fails to utilize microalgae polysaccharides as resources to promote plant growth.

Method used

A combined treatment method of Acinetobacter HH and Chlorella MHQ2 is adopted to form algae-bacteria liquid fertilizer through solid-liquid separation, inoculation and cultivation, which is used for the degradation and resource utilization of kitchen wastewater, and promotes polysaccharide accumulation and plant growth.

Benefits of technology

It achieved efficient degradation of kitchen wastewater, with a removal rate of 76.66% of COD and 97.68% of TP, promoted the accumulation of polysaccharides, and significantly improved the germination rate and growth of plants, realizing the harmless and resource-based treatment of wastewater.

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Abstract

The present invention discloses a method and application for utilizing Acinetobacter HH and Chlorella MHQ2 to treat wastewater and produce a plant growth promoter. The method relates to the field of microorganisms and micronutrient fertilizers. The present invention provides a strain of Acinetobacter HH, deposited with CGMCC No. 32660, which, when combined with Chlorella MHQ2 to treat high-organic food wastewater, achieves a COD removal rate of 76.66% and a TP removal rate of 97.68%. Furthermore, the introduction of Acinetobacter promotes the accumulation of algal polysaccharides, reaching 0.18 g / L, and can be recycled as a plant growth promoter. The algae-bacterial liquid fertilizer produced through the combined treatment effectively promotes the germination and growth of pakchoi and corn seeds. The method is simple to operate and can efficiently and cost-effectively treat food waste. It also utilizes algae-bacterial biomass to produce an algae-bacterial liquid fertilizer, achieving both harmless and resourceful food waste treatment. This method is of great significance and holds great potential for widespread application.
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