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A Remediation Method of Abandoned Factory Contaminated Soil

A restoration method and a technology of polluted soil, applied in the field of soil restoration, can solve problems such as hidden dangers in production and life, poisonous shopping malls, poisonous residential areas, etc., and achieve the effect of enhancing photocatalytic effect, improving efficiency, and improving fixation capacity

Active Publication Date: 2022-03-22
江西源春环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has a huge amount of engineering, and the subsequent incineration treatment causes serious air pollution and consumes a lot of energy.
[0005] When these abandoned factories are being developed for residential or commercial use, the contaminated soil on the surface must be treated, otherwise poisonous residential areas, poisonous shopping malls, etc. will be formed, which will pose a great hidden danger to people's production and life

Method used

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  • A Remediation Method of Abandoned Factory Contaminated Soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] An abandoned factory contaminated the soil repair particles, the preparation method of the repair particles is as follows:

[0034] (1) Preparation of particulate substrates

[0035] (1) Take a certain amount of natural zeolite, and then heat it to 400 ° C for 4 hours in the hubbenzum.

[0036] (2) Adjusting the humic acid to 2% aqueous sodium sodium sodium sodium solution, when the calcination zeolite taken out of the subth (1) is lowered to 150 ° C, add aqueous sodium suction aqueous solution, completely cooling and dried Get a humic acid-based zeolite;

[0037] (3) Tune the sodium alginate into 1.0% aqueous alginate aqueous solution, then add 30% of the sodium alginate water solution and 8% silane coupling agent, the powder is montmorillonite powder: fly ash : Nano-titanium white powder mass ratio is 8: 2: 1 mixture, after dispersion is uniform, according to the suction ratio of 0.3 l / kg, the syndrome of the humic acid-inserted zeolite step, mixed with stirring for 2 h...

Embodiment 2

[0049] An abandoned factory contaminated the soil repair particles, the preparation method of the repair particles is as follows:

[0050] (1) Preparation of particulate substrates

[0051] (1) Take a certain amount of natural zeolite, and then heat the calcination zeolite after heating to the hubbew furnace of 420 ° C for 3 h.

[0052] (2) Adding humic acid to a 2% aqueous sodium suction solution, when the calcination zeolite taken out of the subth (1) is lowered to 180 ° C, add the sodium suction of the sodium suedic acid solution, completely cooling, remove drying Get a humic acid-based zeolite;

[0053](3) The sodium alginate formulated aqueous 0.8% sodium alginate, followed by addition of 25% aqueous solution of sodium alginate powder and 6% of a silane coupling agent, the powder montmorillonite powder: Fly Ash : 6 mass ratio of nano titanium dioxide: 2 mixture, homogeneously dispersed, in accordance with the liquid to solid ratio of 0.4L / kg was added (2) obtained in step h...

Embodiment 3

[0066] An abandoned factory contaminated the soil repair particles, the preparation method of the repair particles is as follows:

[0067] (1) Preparation of particulate substrates

[0068] (1) a certain amount of natural zeolite, calcined at 500 ℃ 2h and heated to boiling horse oven, remove the calcined zeolite;

[0069] (2) The formulated humic acid 2% aqueous solution of sodium humic acid, when the first step (1) calcining the zeolite withdrawn lowered to 200 ℃, immersion quenching into aqueous sodium humic removed completely cooled after drying to obtain humic acid intercalation zeolite;

[0070] (3) The sodium alginate formulated into a 0.5% aqueous sodium alginate solution, followed by addition of 20% by mass aqueous solution of sodium alginate powder and 5% of a silane coupling agent, the powder montmorillonite powder: Fly Ash : mass ratio of nano titanium dioxide 5: 2 mixture, homogeneously dispersed, in accordance with the liquid to solid ratio of 0.5L / kg was added (2) ...

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Abstract

The invention discloses a remediation particle for polluted soil of an abandoned factory and a remediation method for using the remediation particle to repair the polluted soil of an abandoned factory. The calcined expanded zeolite is used as the basic material of the remediation particle, and is adsorbed and fixed by sodium alginate and humic acid. Zinc ions are trapped and the pores formed by expansion can provide an excellent anaerobic environment for desulfurizing vibrio, improving the purification ability of sulfate radicals; using the dual functions of photocatalysis and microbial decomposition, it can greatly improve the long-chain macromolecular organic matter. It can be repaired in situ, the repairing method is simple and easy, the treatment efficiency is high, and the treatment effect is good.

Description

Technical field [0001] The present invention relates to the field of soil restoration, in particular to a repair method for contaminated the soil of abandoned plants. Background technique [0002] Due to the rapid economic development of the economy, my country has faster urban expansion, leading to the original urban suburban residentialization development, commercial development. More chemical plant areas with the original suburbs, now need to relocate and reuse land. [0003] However, due to the abandoned factories in the production and operation process, the ground soil will varying degrees of pollution, such as high concentrations of organic solvents and pesticide residues in the surface soil of pesticide plants, and other manufacturing and processing plants will residue processing reagents, such as anti-corrosion Pillow wood factory. [0004] Pillow, refers to the sleeper made of wood, which is characterized by light weight, light weight, good insulation performance, simple...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40B09C1/08B09C1/10
CPCC09K17/40B09C1/08B09C1/10B09C1/105B09C2101/00
Inventor 刘晓峰江寿良刘宗飞江子恒王丹蕾
Owner 江西源春环保科技有限公司