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Beryllium metal polluted soil repairing agent and preparation method thereof

A technology of contaminated soil and remediation agent, applied in the field of soil remediation, can solve the problems of long remediation period, high beryllium toxicity, and high remediation cost of beryllium-contaminated soil, and achieve the effect of efficient remediation economy and enhanced adsorption capacity

Inactive Publication Date: 2019-03-22
浙江中地净土科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present application provides a remediation agent for beryllium metal-contaminated soil and its preparation method, which solves the technical problems of high toxicity of beryllium, long remediation period of beryllium-contaminated soil, high remediation cost and low economic efficiency in the prior art; Achieve the technical effect of efficient soil restoration and high economical efficiency

Method used

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  • Beryllium metal polluted soil repairing agent and preparation method thereof
  • Beryllium metal polluted soil repairing agent and preparation method thereof
  • Beryllium metal polluted soil repairing agent and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0037] Mineral microcapsule material; said mineral microcapsule material accounts for 90-110 parts; sepiolite powder, said sepiolite powder accounts for 20-35 parts; and hydroxide, said hydroxide accounts for 40-50 parts.

[0038] The restorative composition also includes: the hydroxide is one or more mixtures of potassium hydroxide, sodium hydroxide, calcium hydroxide, aluminum hydroxide or magnesium hydroxide; wherein potassium hydroxide and hydrogen are preferably used Potassium oxide, because the residual potassium and sodium elements in the soil can be quickly removed by bean plants in the late and mid-term, such as using soybean roots to absorb excess potassium and sodium elements in the soil.

[0039] Specifically, the soil leaching test shows that under alkaline conditions, the adsorption force of the soil to beryllium is strengthened, so adding some alkaline substances to the beryllium-contaminated soil can reduce the activation and migration of beryllium, which is eff...

Embodiment 2

[0060] On the basis of Embodiment 1, do further optimization, specifically:

[0061] The restorative composition includes: mineral microcapsule material; the mineral microcapsule material accounts for 100 parts; sepiolite powder, the sepiolite powder accounts for 25 parts; and hydroxide, the hydroxide accounts for 45 parts.

[0062] The mineral microcapsule material components include: silicon oxide, the silicon oxide accounts for 70 parts; aluminum oxide, the aluminum oxide accounts for 10 parts; sodium oxide, the sodium oxide accounts for 2 parts; calcium oxide, the calcium oxide accounts for 2 parts. 5 parts; and potassium oxide, which accounts for 3 parts.

[0063] The pH value of the restoration agent is 8.

[0064] The water content of the restoration agent is between 4%.

[0065] The specific surface area of ​​the restoration agent is 650m 2 / g.

[0066] The preparation method of the restoration agent comprises: mixing the silicon oxide, aluminum oxide, sodium oxide...

Embodiment 3

[0071] On the basis of Embodiment 1, do further optimization, specifically:

[0072] The restorative composition includes: mineral microcapsule material; the mineral microcapsule material accounts for 105 parts; sepiolite powder, the sepiolite powder accounts for 35 parts; and hydroxide, the hydroxide accounts for 55 parts.

[0073] The mineral microcapsule material composition includes: silicon oxide, the silicon oxide accounts for 80 parts; aluminum oxide, the aluminum oxide accounts for 12 parts; sodium oxide, the sodium oxide accounts for 4 parts; calcium oxide, the calcium oxide accounts for 9 parts; and potassium oxide, which accounts for 4 parts.

[0074] The pH value of the restoration agent is 7.8.

[0075] The water content of the restoration agent is between 2.5%.

[0076] The specific surface area of ​​the restoration agent is 800m2 / g.

[0077] The preparation method of the restoration agent includes: mixing the silicon oxide, aluminum oxide, sodium oxide, calci...

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Abstract

The embodiment of the invention provides a beryllium metal polluted soil repairing agent and a preparation method thereof and belongs to the technical field of soil repairing. The repairing agent comprises 80-120 parts of a mineral microcapsule material, 10-40 parts of sepiolite powder and 30-60 parts of hydroxide. The beryllium metal polluted soil repairing agent has the technical fields of efficient soil repairing and high economy.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to a remediation agent for beryllium metal-contaminated soil and a preparation method thereof. Background technique [0002] At present, the treatment of heavy metal-contaminated soil has been paid attention to. The technologies for dealing with pollution sources include bioremediation, phytoremediation, biological ventilation, chemical oxidation, soil leaching, electrodynamic separation, and excavation. [0003] Among them, the commonly used restoration methods are bioremediation, phytoremediation, and electrodynamic separation; however, the above-mentioned common methods still have various problems in soil restoration, such as long restoration cycle time, heavy restoration operation workload, and short restoration maintenance time; such as biological 1. The cycle of phytoremediation is generally more than three months, and the maintenance time is short; another example is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/08C09K101/00
CPCC09K17/08C09K2101/00
Inventor 陈明
Owner 浙江中地净土科技有限公司
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