Rhodococcus ruber HDRR1 for purifying inorganic nitrogen and phosphorus in aquaculture tail water of seawater ponds and applications of rhodococcus ruber HDRR1

Abstract

The invention discloses rhodococcus ruber HDRR1 for purifying inorganic nitrogen and phosphorus in aquaculture tail water of seawater ponds. The rhodococcus ruber HDRR1 is assigned the accession number CCTCC M20191008, and deposited with the China Center for Type Culture Collection, Wuhan, China on December 4, 2019. The strain HDRR1 has strong purifying capacity on the inorganic nitrogen and phosphorus in aquaculture tail water, is good in environmental adaptability and has no adverse effects on farmed fish and shrimp. Applications of the rhodococcus ruber HDRR1 on purifying the inorganic nitrogen and phosphorus in the aquaculture tail water of seawater ponds are also disclosed.

Description

technical field [0001] The invention belongs to the technical field of microbial purification of seawater pond culture water, in particular to a Rhodococcus rubrum HDRR1 for purifying inorganic nitrogen and phosphorus in seawater pond culture tail water and an application thereof. Background technique [0002] In 2018, the total output of aquaculture in my country exceeded 50 million tons, accounting for more than 78% of the total supply of aquatic products. If the aquaculture process is not properly managed, residual feed, aquaculture metabolites and aquatic biological residues will accumulate in the water environment, forming self-sourced aquaculture tail water or pollutants. In terms of the form of chemical substances contained in the tail water, there are mainly ammonia nitrogen, total inorganic nitrogen (TIN), phosphorus, organic matter and fouling organisms (Xu Sheng, 2011; Shu Tingfei et al., 2002). For example, harmful nitrogen such as ammonia nitrogen and nitrite n...

AI Technical Summary

Problems solved by technology

[0004] Because nitrifying bacteria and denitrifying bacteria are relatively difficult to separate and purify, most researchers at home and abroad use activated sludge for enrichment culture, and seldom use pure bacteria to expand the culture method, and form pure bacteria that can be used in aquaculture industry on a large scale Preparation products are rarely reported (Yang Ning, 2003; Wang Juan, 2006)

Although microbial immobilization technology has attracted much attention and many beneficial explorations and attempts have been made, most of them are still in the stage of small-scale and small-scale application experiments, and have not yet achieved the effect of large-scale industrial application of directional cultivation of a single microorganism.

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