A bioremediation method for metal pollution control

A pollution control and bioremediation technology, applied in the field of soil remediation, can solve problems such as death, slow growth and reproduction, and affect the efficiency and effect of soil remediation, and achieve the effect of good light transmission

Active Publication Date: 2021-10-29
柳州市格佑环保科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] However, most of the current bioremediation uses microorganisms and plants to remediate the soil. However, there are no measures for auxiliary cultivation of microorganisms and repair plants during soil remediation, which makes the growth and reproduction of microorganisms and repair plants slow when they are first transplanted to contaminated soil. Death, affecting the efficiency and effect of soil remediation

Method used

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  • A bioremediation method for metal pollution control
  • A bioremediation method for metal pollution control
  • A bioremediation method for metal pollution control

Examples

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Embodiment 1

[0039] Example 1: See figure 1 with Figure 7 , a bioremediation method for metal pollution control, including a soil remediation method, the remediation method is

[0040] S1. Use a cultivator to stir the soil layer polluted by heavy metals to a depth of 30cm-50cm;

[0041] S2. Irrigate the soil to be treated in step S1, make it in a flooded state, and keep it in the air for 3-5 days until loose;

[0042] S3. Mix the soil with a thickness of 20-25cm on the surface layer of the soil to be treated evenly with the composite microbial strains, the composite microbial strains include Bacillus megaterium, Bacillus colloid, Serratia marcescens, Pseudomonas aeruginosa and dense For at least one type of Streptomyces spirochetes, an auxiliary treatment device is set up in the treatment area, and a light-transmitting film 5 is laid on the outside of the auxiliary treatment device, so that the space in the auxiliary treatment device is closed to reduce the impact of the external enviro...

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Abstract

The invention discloses a bioremediation method for metal pollution control, which belongs to the technical field of soil remediation. It is a bioremediation method for metal pollution control. The soil is aired until it becomes loose, and then compound microbial strains are injected into the contaminated soil and an auxiliary treatment device is set up. After 2-3 months of microbial cultivation, repair plants are planted in the recontaminated repair area, and algae culture films are laid in the auxiliary treatment device. The phototropic algae are cultivated on the algae culture film, and the whole plant is removed after 10-12 months of cultivation. The auxiliary treatment device can be used to isolate the soil area to be treated from the outside and form a small greenhouse. The auxiliary treatment device is equipped with a suction pipe and the supply pipe to supplement nutrients and pump air, and the algae culture film can fall off in time after the propagation and expansion of the algae culture film, so that the algae on the algae culture film can provide nutrients for microorganisms and plants.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to a bioremediation method for metal pollution control. Background technique [0002] In recent decades, due to global industrialization, a large number of potentially toxic substances have been discharged into the biosphere, including heavy metals, which can enter soil, rivers, and groundwater through various channels. Heavy metals are pollutants that are difficult to control. They have a long incubation period, chronic accumulation of hazards, are not easy to be noticed by people, and are non-degradable. Once they enter the environment, they will produce persistent and series of pollution, which is not easy to be removed. Tailings ponds in metal mines are an important source of heavy metal pollution in the environmental system. Tailings are a kind of solid waste generated during the mining process. These wastes contain high concentrations of toxic heavy metals. When they ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/10
CPCB09C1/10B09C1/105B09C2101/00
Inventor 钟辉
Owner 柳州市格佑环保科技有限公司
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