Composite oxygenator for removing nitrite from aquaculture water and preparation method thereof

Abstract

The invention belongs to the technical field of aquaculture, and discloses a compound oxygen enhancer for removing nitrite in aquaculture water and a preparation method. The oxygen-increasing agent is prepared from the following components in parts by weight: 40-50 parts of oxygen-increasing components, 24-38 parts of composite microbial bacterial agents, 5-29 parts of adsorbents, 1.0-2.5 parts of growth promoters, and externally added traditional Chinese medicines. 7 to 10 parts of agent, 0.02 to 0.12 parts of synergist, 1 to 3 parts of stabilizer, and 1.4 to 2.2 parts of sustained release agent; the compound microbial agent includes denitrifying bacteria, Trichoderma harzianum, Bacillus amyloliquefaciens, Bacillus lateralis, Bacillus subtilis, Rhodococcus rhodococcus, silicate bacteria, Streptococcus faecalis and Bacillus coagulans. The oxygen-increasing agent of the invention is compounded with various microbial agents, can effectively remove nitrite, and has the functions of inhibiting pathogenic bacteria in aquaculture water and improving intestinal digestion of aquatic animals, and has good popularization and application value.

Description

Technical field [0001] The invention belongs to the technical field of aquaculture, and specifically relates to a composite oxygenator for removing nitrite in aquaculture water and a preparation method. Background technique [0002] In recent years, aquaculture has developed rapidly, especially in artificial freshwater aquaculture, which are mostly ponds or factory constructions, which are closed and the water body is static for a long time. The oxygen content and nitrite content in the water body affect the water environment It is very large, directly related to the output of aquaculture, especially with the development of high-density aquaculture, a large amount of fish and shrimp excrement, residual bait and other organic matter are deposited on the bottom of the water, making the oxide layer in the surface layer of the bottom of the pool thin, and the lower layer is reduced The layer thickens and the redox potential decreases. During the breeding season, due to the high temp...

AI Technical Summary

Problems solved by technology

[0004] The application of biological treatment methods to control nitrite in water has achieved good results. However, most of the current technologies use a single microbial strain to control water quality, and the degradation efficiency is not high enough, which has limitations. Therefore, various microorganisms Combining the optimal proportion of bacterial agents, using their interaction and mutual influence to maximize their group advantages, in order to achieve the purpose of efficient and rapid degradation, has also become a difficult problem and a research hotspot in breeding technology

However, the existing water purifier has a single function and cannot meet the requirements of high-density aquaculture. Therefore, it is of great significance to develop a multifunctional water purification agent.

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