Preparation method of fresh water composite microorganism base modifier

Abstract

The invention discloses a preparation method of a fresh water composite microorganism bottom modifier. The preparation method comprises the steps of preparation of a fermentation culture medium, fermentation, adsorption and crosslinking. The method comprises the following specific steps: firstly, mixing bran powder, corncob powder, starch wastewater and a fermentation synergist to obtain the fermentation culture medium; introducing a mixed bacterial solution of rhodococcus erythropolis, saccharomyces cerevisiae and bacillus subtitles for fermentation culture, and purifying to obtain a microbial flocculant; then, adsorbing sesame straw activated carbon, enzymatic liquid, the microbial flocculant and a microbial preparation; performing crosslinking with a crosslinking agent to obtain the fresh water composite microorganism base modifier. The preparation method has the beneficial effects of easiness and feasibility, higher yield and productive rate of polysaccharides in a preparation process, higher mechanical strength and stability of a final product, and higher mass transfer performance and pelletizing performance. The fresh water composite microorganism base modifier modifies culturing sewage through the three strong effects of fluctuation, enzymatic degradation and microbial degradation, and has the advantages of comprehensive biodegradability, high security, nontoxicity, harmlessness and freeness from secondary pollution.

Description

technical field [0001] The invention relates to the field of cultured freshwater bottom modifiers, in particular to a preparation method of freshwater composite microbial bottom modifiers. technical background [0002] The pond is not only the environment for the growth of cultured fish and other aquatic organisms, but also the treatment place for their secretions and excrement. Due to the large amount of feeding during the breeding process, the residual bait and the feces, corpses and dead algae of aquatic organisms continue to increase. However, it cannot be excluded from the pond, and it is deposited at the bottom of the pond, forming a layer of black silt at the bottom of the pond. The organic matter in the sludge is fermented and decomposed under anoxic conditions to produce a large number of substances that are not conducive to the growth of fish and aquatic organisms, such as ammonia, hydrogen sulfide, methane, hydrogen, organic acids, mercaptans, and lower amines. Th...

AI Technical Summary

Problems solved by technology

The organic matter in the sludge is fermented and decomposed under anoxic conditions to produce a large number of substances that are not conducive to the growth of fish and aquatic organisms, such as ammonia, hydrogen sulfide, methane, hydrogen, organic acids, mercaptans, and lower amines. These substances not only directly Harm the cultured fish and aquatic organisms, and worsen the water quality of the entire pond environment, lower the pH value, thereby affecting the metabolism and growth of the cultured species, resulting in an increase in the feed factor, an increase in the cost of breeding, and even poisoning and death of the cultured species. Cause significant loss to the economic benefits of the breeding cycle