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Heavy metal ion polluted soil repairing material, and preparation method thereof

A technology for heavy metal ions and polluted soil, applied in the field of heavy metal ion-contaminated soil remediation materials and their preparation, can solve the problems of agricultural product pollutants exceeding the standard, endangering human health, crop yield reduction, etc., achieving stable remediation effect, short remediation time, and easy industrialization production effect

Inactive Publication Date: 2016-03-02
JIANGSU GAIYA ENVIRONMENTAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polluted soil will lead to crop yield reduction, and even cause excessive pollutants in agricultural products, endangering human health

Method used

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  • Heavy metal ion polluted soil repairing material, and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Weigh wollastonite 40kg, polydimethylsiloxane diquaternary ammonium salt 1kg, (trimethylsilyl) phosphate 1kg, methylisothiazolinone 0.5kg, basic sodium aluminum carbonate 0.5kg, Add 0.5kg of sodium germanate, 0.3kg of sodium selenite, 0.2kg of barium metaborate and 0.1kg of polyethylene dioxythiophene into a high-pressure homogenizer, and mix for 15 minutes at 50°C and 15MPa;

[0030] (2) Add 1 kg of calcium aluminate and stir evenly to obtain heavy metal ion contaminated soil remediation materials.

[0031] The performance test results of the prepared heavy metal ion contaminated soil remediation materials are shown in Table 1.

Embodiment 2

[0033] (1) Weigh wollastonite 40kg, polydimethylsiloxane diquaternary ammonium salt 1kg, (trimethylsilyl) phosphate 1kg, methylisothiazolinone 0.5kg, basic sodium aluminum carbonate 0.5kg, Add 0.5kg of sodium germanate, 0.3kg of sodium selenite, 0.2kg of barium metaborate and 0.1kg of polyethylene dioxythiophene into a high-pressure homogenizer, and mix for 15 minutes at 50°C and 15MPa;

[0034] (2) Add 1 kg of calcium aluminate, 0.5 kg of activated carbon, and 0.5 kg of barium oxide, and stir evenly to obtain a soil restoration material contaminated by heavy metal ions.

[0035] The performance test results of the prepared heavy metal ion contaminated soil remediation materials are shown in Table 1.

Embodiment 3

[0037] (1) Weigh wollastonite 50kg, polydimethylsiloxane diquaternary ammonium salt 2kg, (trimethylsilyl) phosphate 2kg, methylisothiazolinone 1kg, basic sodium aluminum carbonate 1kg, germanic acid Add 1kg of sodium, 0.5kg of sodium selenite, 0.8kg of barium metaborate and 0.4kg of polyethylene dioxythiophene into a high-pressure homogenizer, and mix for 25 minutes at 60°C and 18MPa;

[0038] (2) Add 2 kg of calcium aluminate, 0.5 kg of activated carbon, and 0.5 kg of barium oxide, and stir evenly to obtain a soil restoration material contaminated by heavy metal ions.

[0039] The performance test results of the prepared heavy metal ion contaminated soil remediation materials are shown in Table 1.

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Abstract

" The invention discloses a heavy metal ion polluted soil repairing material, and a preparation method thereof. The heavy metal ion polluted soil repairing material is prepared from, by weight, 40 to 50 parts of aedelforsite, 1 to 2 parts of calcium aluminate, 1 to 2 parts of a polydimethylsiloxane diquaternary ammonium salt, 1 to 2 parts of trimethylsilyl phosphate, 0.5 to 1 part of methylisothiazolinone, 0.5 to 1 part of Carbaldrate, 0.5 to 1 part of sodium germanate, 0.3 to 0.5 part of sodium selenite, 0.2 to 0.8 part of barium metaborate, and 0.1 to 0.4 part of poly(3,4-ethylenedioxythiophene). The invention also provides the preparation method of the heavy metal ion polluted soil repairing material.

Description

technical field [0001] The invention belongs to the field of repair materials, in particular to a repair material for heavy metal ion polluted soil and a preparation method thereof. Background technique [0002] There are many reasons for soil pollution, such as industrial sludge, agricultural garbage, sewage irrigation, pollutant deposition in the atmosphere, and the extensive use of mineral fertilizers and pesticides containing heavy metals. Polluted soil will lead to crop yield reduction, and even cause excessive pollutants in agricultural products, endangering human health. [0003] Soil remediation mainly refers to the use of physical, chemical and biological methods to transfer, absorb, degrade and transform pollutants in the soil, reducing its concentration to an acceptable level, or converting toxic and harmful pollutants into harmless substances. Soil remediation can not only remove heavy metal ions in the soil, but also promote crop nutrient absorption, and play...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40
Inventor 程功弼仲英豪
Owner JIANGSU GAIYA ENVIRONMENTAL SCI & TECH CO LTD
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