Compound microecological preparation for purifying cultivation water, preparation formulation thereof and preparation processes of the preparation and the preparation formulation

Abstract

The invention relates to a compound microecological preparation used to purify aquaculture water in the field of aquiculture, a preparation form and a preparation process thereof; the preparation is composed of photosynthetic bacterium, bacillus subtilis, denitrifying bacterium, coagulant aid and auxiliary components; the preparation form is composed of an inner layer and an outer layer, wherein, the outer layer comprises bacillus subtilis, denitrifying bacterium and coagulant aid, and the inner layer comprises solid photosynthetic bacterium particles. The invention breaks through the prior theory that people keeps using nitrite bacteria and nitrobacteria to solve the problem of the accumulation of ammonia nitrogen and nitrite in the aquaculture water in the control of aquaculture water, introduces an advanced SHARON theory in wastewater treatment, integrates the characteristics of the aquaculture water quality, purifies the aquaculture water with denitrifying bacteria strains as the main bacteria strains, can quickly and effectively reduce the content of NH3 and NO2- in the aquaculture water, is not inhibited by the concentration of the NO2-, and effectively reduces the oxygen consumption in the aquaculture water.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a compound microecological preparation for purifying aquaculture water, a dosage form and a preparation process thereof. Background technique [0002] At present, with the increase of people's demand for aquatic products, many aquaculture factories adopt high-density aquaculture methods to increase unit output, but often this high-density aquaculture method cannot achieve the corresponding fish and shrimp production. The main reason is that water quality problems limit fish and shrimp. output. The water quality problem of aquaculture water mainly comes from the influence of organic matter such as feces excreted by fish and residual bait that fish and shrimps failed to eat. Macromolecular organic matter in aquaculture water is decomposed into small molecule peptides, which are oxidized by ammonifying bacteria into ammonia nitrogen (NH 3 -N), and then through the nitrosation of nitrosif...

AI Technical Summary

Problems solved by technology

[0008] 1. Photosynthetic bacteria do not produce oxygen during photosynthesis under anaerobic and light conditions, and photosynthetic bacteria cannot decompose and utilize macromolecular organic matter such as residual bait, excrement, and plankton residues that enter the aquaculture water body. After bacterial infection, the number of rotifers in the aquaculture water increases greatly, resulting in biological hypoxia in high-density aquaculture ponds, resulting in a large number of fish and shrimp deaths

[0009] 2. The reproduction and secretion of Bacillus subtilis are inseparable from oxygen. The existing micro-ecological preparations use raw materials with strong adsorption function as carriers, or make them into tablets, so that Bacillus subtilis can easily sink to the aquaculture water when it is released. However, the anaerobic environment at the bottom of the aquaculture water body cannot provide the oxygen necessary for the reproduction of Bacillus subtilis, so the effect is not significant

[0010] 3. After the nitrosifying bacteria and nitrifying bacteria are released into the aquaculture water at the same time, the growth rate of the nitrosifying bacteria is much greater than that of the nitrifying bacteria (18-20 hours for one generation), and the nitrifying bacteria are vulnerable to nitrite, ammonia nitrogen and other water quality indicators. Therefore, it is particularly easy to cause nitrite accumulation in aquaculture water, especially high-density aquaculture water will form nitrite poisoning, and the nitrite produced in the aquaculture process will become the main factor hindering the development of aquaculture.

[0011] In addition to the active ingredients of the above three main microecological preparations, there are some bacteria or fungi with nitrification that need organic carbon to obtain energy, and the ammonification rate is slower than that of nitrifying bacteria, so they cannot become the main body of nitrification; lactic acid bacteria Due to the limitation of their breeding conditions, yeast and yeast cannot effectively reproduce and grow in aquaculture water, nor can they be used as the main body of beneficial microorganisms

[0012] In summary, the main limiting factor for high-density farming of aquatic products at this stage is NO 2 —, and the commonly used microecological preparations and usage methods cannot meet the needs of reducing nitrite in aquaculture water

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