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Conditioner for remediating organic contaminated soil by utilizing microbes

A microbial remediation and organic pollution technology, which is applied in the field of conditioner for diesel-contaminated soil, can solve the problems of low soil efficiency, limit the application and impact of microbial remediation, and achieve the effect of alleviating compaction and improving compaction

Pending Publication Date: 2018-11-20
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the current actual effect, there are still some deficiencies in the existing microbial remediation methods, which mainly include: (1) The existing conditioners will have an impact on the indigenous flora, forming an antagonistic effect, which is not conducive to the remediation of contaminated soil
(2) Adding an appropriate amount of straw can relieve soil compaction and enhance ventilation to a certain extent, but it has little effect on soil polluted by diesel oil
(3) Deep plowing (turning) the soil is not only a complicated process, but also time-consuming and labor-intensive, making the operation difficult
The emergence of these unfavorable factors limits the application of microbial remediation in the remediation of diesel-contaminated soil, or in other words, affects the effectiveness of remediation of diesel-contaminated soil

Method used

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  • Conditioner for remediating organic contaminated soil by utilizing microbes
  • Conditioner for remediating organic contaminated soil by utilizing microbes
  • Conditioner for remediating organic contaminated soil by utilizing microbes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) A conditioner utilizing microorganisms to remediate organically polluted soil, containing microbial flora, organic amendments and culture medium, said microbial flora being Acinetobacter (Acinetobacter), Micrococcus (Micrococcus), Bacillus A combination of five species of genus Bacillus, pseudomonas and Achromobacter; the organic modifier is a combination of diatomaceous earth, plant ash, humus, straw, and sawdust; the The medium is a combination of potassium dihydrogen phosphate, dipotassium hydrogen phosphate, ammonium sulfate, limestone and soybean meal.

[0034] The mass percentage of described conditioner component is:

[0035] Microbial flora fermentation broth (OD=1.5) 5%;

[0036] 50% organic modifier, including: 20% diatomaceous earth, 10% plant ash, 10% humus, 5% straw, and 5% sawdust;

[0037] Medium 45%, including: potassium dihydrogen phosphate 12%, dipotassium hydrogen phosphate 8%, ammonium sulfate 19%, limestone 5%, soybean meal 1%.

[0038] (2) The...

Embodiment 2

[0044] (1) A conditioner utilizing microorganisms to remediate organically polluted soil, containing microbial flora, organic amendments and culture medium, said microbial flora being Actinomycetes (Actinomycetes), Pseudomonas (pseudomonas), The combination of Rhodococcus (Rhodococcus), Coryneforms (Coryneforms), and Candida (Candida); the organic amendment is a combination of diatomaceous earth, plant ash, humus, bagasse and sawdust; The medium contained monopotassium phosphate, dipotassium phosphate, ammonium sulfate, limestone and soybean meal.

[0045] The mass percentage of described conditioner component is:

[0046] Microbial flora fermentation broth (OD=2.0) 10%;

[0047] 45% organic modifier, including 15% diatomaceous earth, 15% plant ash, 7% humus, 5% bagasse, and 3% sawdust;

[0048] 45% medium, including 10% potassium dihydrogen phosphate, 5% dipotassium hydrogen phosphate, 13% ammonium sulfate, 15% limestone, and 2% soybean meal.

[0049] (2) The present inven...

Embodiment 3

[0052] (1) A conditioner that utilizes microorganisms to remediate organically polluted soil contains microbial flora, an organic amendment and a culture medium, and the microbial flora is Enterococcus faecalis (Enterococcus faecalis), Staphylococcus (Staphylococcus), yellow Bacillus (Flavobacterium), white rot fungi (write-rot fungi) four kinds of combinations; the organic amendment is a combination of diatomaceous earth, plant ash, biochar and sawdust; the medium contains potassium dihydrogen phosphate, phosphoric acid Dipotassium hydrogen, ammonium sulfate, limestone and soybean meal.

[0053] The mass percentage of described conditioner component is:

[0054] Microbial flora fermentation broth (OD=2.5) 15%;

[0055] 30% organic modifier, including 17% diatomaceous earth, 2% plant ash, 10% biochar, and 1% sawdust;

[0056] Medium 55%, including 8% potassium dihydrogen phosphate, 2% dipotassium hydrogen phosphate, 1% ammonium sulfate, 40% limestone, and 4% soybean meal.

...

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Abstract

The invention discloses a conditioner for remediating organic contaminated soil by utilizing microbes. The conditioner comprises the following components in percentage by mass: 5-20% of microbial flora fermentation liquor, 20-50% of an organic improver and 30-75% of a culture medium, wherein the microbial flora relates to 19 bacterial genera comprising acinetobacter, micrococcaceae, bacillus, candida, trichoderma and aspergillus; the organic improver is one or several of diatomite, humus, straws, charcoal, saw dust, bagasse and plant ash; the culture medium contains monopotassium phosphate, dipotassium phosphate, ammonium sulfate, limestone and bean pulp. The conditioner disclosed by the invention contributes to degrading growth and reproduction of the microbial flora of organic pollutants, and can achieve effects of regulating the pH value of the soil and nutrition-allocated proportion of carbon, nitrogen and phosphorus, effectively improving the composition and structure of the organic contaminated soil and avoiding the phenomenon that the ventilation volume of soil is reduced due to hardening, so that the organic contaminated soil is effectively remediated.

Description

technical field [0001] The invention belongs to the technical field of using microorganisms to repair polluted soil, in particular to a conditioner for using microorganisms to restore organic pollution, especially diesel-polluted soil. Background technique [0002] Soil is one of the necessary natural resources for human beings, animals, plants and microorganisms to survive. Land does not necessarily have soil, and soil is closely related to human survival (farming and animal husbandry). Originally there was a dynamic balance of matter and energy between the soil and the environment, but with the strengthening and impact of human activities, the dynamic balance between the soil and the environment has gradually changed: the soil is gradually being polluted, among which organic pollution (Petroleum and its products) have increasingly serious impacts and harms on soil and the environment, and polluted soil has restricted and seriously affected the survival of humans, animals,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K109/00
CPCC09K17/40C09K2109/00
Inventor 张旭李西燕朱明龙谭文松
Owner EAST CHINA UNIV OF SCI & TECH
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