Bioremediation method for soil polluted by heavy metal lead cadmium and base on kosteletzkya virginica

A cadmium-contaminated soil and bioremediation technology is applied in the field of heavy metal lead-cadmium-contaminated soil bioremediation based on seaside mallow. The effect of reducing stability and promoting absorption

Active Publication Date: 2017-04-26
HENAN INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method for bioremediation of heavy metal lead and cadmium contaminated soil based on seaside mallow, which solves the problem that the existing heavy metal lead and cadmium con

Method used

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Examples

Experimental program
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Example Embodiment

[0028] Example 1

[0029] A method for bioremediation of heavy metal lead and cadmium contaminated soil based on seaside mallow, including the following steps:

[0030] Step 1. Prepare mixed soil: mash the river sand, humus soil, and garden soil separately and mix them evenly according to a mass ratio of 3:3:4, and pass through a sieve with a mesh diameter of 2 mm to obtain mixed soil;

[0031] Step 2. Prepare nutrient soil: add 1×10 effective viable bacteria per kilogram of mixed soil 8 Pieces / g of 25g of young mantle saccharomycete, effective number of viable bacteria is 3×10 8 20ml of Bacillus megaterium agent per mL, mix well to obtain nutrient soil;

[0032] Step 3. Prepare a nutrient bowl: Put nutrient soil into a seedling raising bowl with an outer diameter of 9 cm and a height of 9 cm to obtain a nutrient bowl;

[0033] Step 4. Seed pretreatment: Select seashore mallow seeds with full grains and good seed coat color, soak them in water for two days, and then take them out for us...

Example Embodiment

[0040] Example 2

[0041] A method for bioremediation of heavy metal lead and cadmium contaminated soil based on seaside mallow, including the following steps:

[0042] Step 1. Prepare mixed soil: mash the river sand, humus soil, and garden soil separately and mix them evenly according to a mass ratio of 3:3:4, and pass through a sieve with a mesh diameter of 2 mm to obtain mixed soil;

[0043] Step 2. Prepare nutrient soil: add 1.5×10 effective viable bacteria per kilogram of mixed soil 8 Pieces / g of 25 g of young mantle sac fungus, effective viable bacteria number is 3.5×10 8 20ml of Pseudomonas agent per mL, mix well to obtain nutrient soil;

[0044] Step 3. Prepare a nutrient bowl: Put nutrient soil into a seedling raising bowl with an outer diameter of 9 cm and a height of 9 cm to obtain a nutrient bowl;

[0045] Step 4. Seed pretreatment: Select seashore mallow seeds with full grains and good seed coat color, soak them in water for two days, and then take them out for use;

[0046]...

Example Embodiment

[0052] Example 3

[0053] A method for bioremediation of heavy metal lead and cadmium contaminated soil based on seaside mallow, including the following steps:

[0054] Step 1. Prepare mixed soil: mash the river sand, humus soil, and garden soil separately and mix them evenly according to a mass ratio of 3:3:4, and pass through a sieve with a mesh diameter of 2 mm to obtain mixed soil;

[0055] Step 2. Prepare nutrient soil: add effective viable bacteria number per kilogram of mixed soil to 2×10 8 Units / g of Moses globular mold agent 25g, effective viable bacteria number is 4×10 8 20ml of Rhizobium per mL, mix well to obtain nutrient soil;

[0056] Step 3. Prepare a nutrient bowl: Put nutrient soil into a seedling raising bowl with an outer diameter of 9 cm and a height of 9 cm to obtain a nutrient bowl;

[0057] Step 4. Seed pretreatment: Select seashore mallow seeds with full grains and good seed coat color, soak them in water for two days, and then take them out for use;

[0058] Step...

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PUM

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Abstract

The invention discloses a bioremediation method for soil polluted by heavy metal lead cadmium and base on kosteletzkya virginica. The bioremediation method comprises the following steps of composite soil preparation, nutrient soil preparation, feeding block preparation, seed pretreatment, sowing, transplantation, fertilization and harvesting. According to the bioremediation method for the soil polluted by the heavy metal lead cadmium and base on the kosteletzkya virginica, the survival rate of the kosteletzkya virginica can be improved, the kosteletzkya virginica grows more robust, and the heavy metal lead cadmium in the soil can be efficiently absorbed; and the absorption rate of the kosteletzkya virginica on the heavy metal lead cadmium is improved by 70% or over compared with the absorption rate of commonly-cultivated kosteletzkya virginica.

Description

technical field [0001] The invention belongs to the technical field of heavy metal pollution restoration, and in particular relates to a bioremediation method for heavy metal lead and cadmium contaminated soil based on seaside mallow. Background technique [0002] Soil is an important resource for the survival and development of human society. However, with the rapid development of industrialization and the acceleration of urbanization, heavy metal pollution in my country's soil is becoming more and more serious. At present, lead and cadmium pollution is the most common type of soil heavy metal pollution, and its contaminated soil remediation is a difficult problem. The incubation period of heavy metal lead and cadmium pollution is long, and the harm is chronic accumulation, which is not easy to be noticed by people, and once the environment is polluted, the residual time is long, and it is not easy to remove from the environment. [0003] Some physical or chemical methods ...

Claims

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Application Information

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IPC IPC(8): B09C1/00B09C1/10
CPCB09C1/10B09C1/105
Inventor 周建王保全齐安国乔丽芳邓中阳
Owner HENAN INST OF SCI & TECH
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