Remediation tank for heavy metal contaminated soil

A technology for polluted soil and heavy metals, applied in the restoration of polluted soil, solid separation, sieving and other directions, can solve the problems of soil damage to soil structure, secondary pollution, soil quality threat, etc., to achieve enhanced solubility, convenient maintenance, The effect of easy digging operation

Inactive Publication Date: 2020-03-24
耿言华
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of remediation tank for heavy metal contaminated soil, which can solve the problem that heavy metal elements still exist in the soil for remediation of soil by chemical solidification method, which poses a threat to soil quality, and can solve the problem of using reagents in existing soil remediation. Destroying the soil structure and causing secondary pollution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Remediation tank for heavy metal contaminated soil
  • Remediation tank for heavy metal contaminated soil
  • Remediation tank for heavy metal contaminated soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Dissolve citric acid monohydrate in water to prepare 20mmol / L citric acid solution;

[0047] Dissolve trisodium ethylenediamine disuccinate in water to prepare 20mmol / L trisodium ethylenediamine disuccinate solution;

[0048] adding the rhamnolipid into water, stirring evenly to obtain a 10g / L rhamnolipid solution;

[0049] Mix citric acid solution, trisodium ethylenediamine disuccinate solution and rhamnolipid solution uniformly at a volume ratio of 1:0.5:0.5 to obtain composite rinse agent A.

[0050] Add the polluted soil that has been sieved to remove the gravel by the filter screen into the repair pool, add the rinse agent A into the repair tank according to the ratio of 1kg soil to 3L rinse agent, fully mix the contaminated soil and rinse agent A, and Stir the soil continuously, and discharge the eluent A out of the repair pool through the drain pipe 3 after 6 hours. The discharged eluent A is collected and then treated centrally. After the eluent A is discharged...

Embodiment 2

[0052] Dissolve oxalic acid in water to prepare a 30mmol / L oxalic acid solution;

[0053] Dissolve disodium edetate in water to prepare a 20 mmol / L disodium edetate solution;

[0054] Adding sophorolipids into water and stirring evenly to obtain a 10g / L sophorolipid solution;

[0055] Mix oxalic acid solution, edetate disodium solution and sophorolipid solution uniformly at a volume ratio of 1:1:2 to obtain composite rinse agent B.

[0056] Add the polluted soil that has been sieved to remove the gravel by the filter screen into the restoration pool, add the eluent B to the restoration pool at the ratio of 1kg of soil to 5L of the eluent, fully mix the contaminated soil and the eluent B, and Stir the soil continuously, and discharge the eluent B out of the repair pool through the drain pipe 3 after 6 hours. The discharged eluent B is collected and then treated centrally. After the eluent B is discharged, take a soil sample to test the zinc, copper, nickel, Changes in the con...

Embodiment 3

[0058] Dissolve acetic acid in water to prepare 20mmol / L acetic acid solution;

[0059] Dissolve tetrasodium glutamic acid N,N-diacetate in water to prepare 30mmol / L tetrasodium glutamate N,N-diacetate;

[0060] adding trehalolipid into water, stirring evenly to obtain 20g / L trehalolipid solution;

[0061] Acetic acid solution, tetrasodium glutamic acid N,N-diacetate solution and trehalolipid solution were uniformly mixed at a volume ratio of 1:2:0.5 to obtain a composite eluent C.

[0062] Add the polluted soil that has been sieved to remove the gravel by the filter screen into the restoration pool, add the eluent C into the restoration pool according to the ratio of 1kg of soil to 3L of eluent C, fully mix the contaminated soil and eluent C, and Stir the soil continuously, and discharge the eluent C out of the repair pool through the drain pipe 3 after 6 hours. The discharged eluent C is collected and treated centrally. After the eluent C is discharged, take a soil sample t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a remediation tank for heavy metal contaminated soil. The remediation tank comprises a tank body, the bottom of the tank body is obliquely arranged, the inclination angle is 5-10 DEG, a waterproof layer is laid on the bottom of the tank body, the inclined lower end of the tank body communicates with a water discharge pipe, the water discharge tube is provided with a water discharge valve, and a soil turning device is arranged in the tank body. The remediation tank can conveniently remediate soil, can turn the soil easily by arranging the soil turning device, and avoidsanother soil turning devices from being manually operated for soil turning remediation; and a method for remediating soil by adopting a chemical leaching agent makes the contaminated soil transferredinto the remediation tank and remediated, so the chemical leaching agent is prevented from being added to affect other soils.

Description

technical field [0001] The invention relates to the technical field of remediation of heavy metal-contaminated soil, in particular to a remediation pool for heavy metal-contaminated soil. Background technique [0002] Soil heavy metal pollution means that human activities bring heavy metal substances into the soil, which makes the content of heavy metals in the soil significantly higher than its natural background content. The continuous enrichment of heavy metals in the soil will poison the plant system in the soil, not only leading to soil degradation, Ecological damage will also accumulate in the human body through the ecological chain cycle, posing a huge threat to human health and life safety. [0003] The purpose of soil remediation is to reduce or remove the heavy metal content in the soil or reduce the biological activity of heavy metals through physical, chemical, biological and other methods. Chinese patent CN103286123A discloses a method of repairing soil by chem...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/02B09C1/10B07B1/46
CPCB07B1/4609B09C1/02B09C1/10B09C1/105
Inventor 耿言华
Owner 耿言华
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap