Microorganism combination and degradation method for degrading heavy metal-enriched plants

Abstract

The invention belongs to the field of microorganism, in particular to a microorganism combination and a degradation method for degrading heavy metal-enriched plants. The microorganism combination consists of B.subtilis, P.chrysosporium, T.ressei and Pterulasp.strain QD-1 accoriding to a ratio of (0.5 to 1.5):(0.5 to 1.5):(0.5 to 1.5):(0.5 to 1.5):(0.5 to 1.5). The microorganism combination has theadvantages that the microorganism degrading and capacity reduction with low cost, low energy consumption and green and safe effects are realized; the good effect is realized on the degrading effect of enriched plant and the extracting of heavy metals; the lignocellulose is highly and efficiently degraded so as to reach the high-efficiency degrading and high-flux capacity reduction of biomass; thebacterial strain has good uranium tolerance, and the antagonism is avoided between the bacterial strains.

Description

technical field [0001] The invention belongs to the field of microorganisms, and in particular relates to a combination of microorganisms and a degradation method for degrading heavy metal-rich plants. Background technique [0002] Heavy metal materials have always been an indispensable resource in the development of human industrial technology. With the formation of more and more high-tech industries today, although a variety of heavy metal substitute materials have been produced, the mining volume and demand of heavy metal resources have not decreased. On the contrary, human mining of heavy metal mineral resources has greatly increased. In the process of utilization of heavy metal resources, including mining, tailings stacking, ore refining and subsequent processing and utilization, local heavy metal concentrations will be too high, which will affect the surrounding environment, and the polluted area will gradually expand with rainwater and watersheds. [0003] The main s...

AI Technical Summary

Problems solved by technology

Therefore, most of the uranium-contaminated areas are polluted by compound heavy metals, which makes the pollution remediation extremely complicated

[0005] Although conventional physical and chemical methods can be used to treat heavy metals in water-soil media, they are not easy to operate in the field because of their high cost, easy to cause secondary pollution, and great harm to the human body during the treatment process; more advantages

So far, research on bioremediation of heavy metal-contaminated environments is mostly limited to laboratories, and only a few experiments have entered the field stage

[0006] Phytoremediation technology is currently a research hotspot in the field of remediation of heavy metal pollution, but there is a relative lack of research on phytoremediation of heavy metals after remediation.

[0007] However, the use of enriched plants to remediate heavy metal pollution will produce a large amount of heavy metal-enriched biomass, which will cause secondary pollution if not properly disposed of.

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