Special flora for sewage treatment and cultivation method of special flora

Abstract

The invention relates to a special flora for sewage treatment. The special flora is prepared from the following components in percentage by mass: 10 to 15 percent of pseudomonas aeruginosa, 13 to 20 percent of bacillus, 5 to 10 percent of rhodococcus sp, 3 to 8 percent of acinetobacter, 8 to 15 percent of bacillus pyocyaneus, 15 to 21 percent of bacillus alcaligenes, 3 to 5 percent of lactobacillus acidophilus, 1 to 6 percent of Streptomyces and 10 to 25 percent of coral nocardia, wherein the mass sum of the strains is 100 percent. A cultivation method for the special flora for the sewage treatment, disclosed by the invention, has the advantages of simple operation and broad conditions; the special flora has better treatment effects on sulfate, organic matters and sewage with higher content of NH3-N; the treated sewage which meets relevant national emission standards can be directly discharged or recycled; besides, the special flora has the advantages of low sludge quantity, zero secondary pollution, stable treatment effect, environment friendliness and zero toxicity.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment special bacteria group and a cultivation method thereof. Background technique [0002] For wastewater treatment, it is easier to treat low-concentration sewage, but when dealing with high-concentration sewage, the efficiency of microbial treatment will be greatly reduced. In the prior art, in the process of treating sewage with complex bacteria flora for high-concentration sewage treatment, because the living conditions are not all optimal for each strain of the flora, the growth rates of various strains are not the same, resulting in complex The imbalance of the proportion of each strain in the bacterial flora will affect the application effect. In addition, the stability of the complex bacterial flora used in sewage treatment in the prior art is relatively poor, and it is easily affected by the environment and the population structure, causing the d...

AI Technical Summary

Problems solved by technology

[0002] For wastewater treatment, it is easier to treat low-concentration sewage, but when dealing with high-concentration sewage, the efficiency of microbial treatment will be greatly reduced

In the prior art, in the process of treating sewage with complex bacterial flora for high-concentration sewage treatment, because the living conditions are not all optimal for each strain of the flora, the growth rates of various strains are not the same, resulting in complex The imbalance of the proportion of each strain in the bacterial flora will affect the application effect

In addition, the stability of the complex bacterial flora used in sewage treatment in the prior art is relatively poor, and it is easily affected by the environment and the population structure, causing the death of some bacterial species or changing the group dominance of the complex bacterial flora due to the intervention of new microorganisms

In addition, due to the loss of complex bacterial flora, it is necessary to continuously replenish the complex bacterial flora in the sewage treatment system to maintain it as the dominant flora in the system, which will undoubtedly increase the operating costs of the sewage treatment plant

Obviously, the complex bacterial flora used for sewage treatment in the prior art is easily affected by living conditions, has poor stability and needs to continuously replenish the complex bacterial flora, which leads to problems such as increased sewage treatment costs

Images