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A heavy metal ion adsorption blanket, its preparation method and its application in removing heavy metals from soil

A technology of heavy metal ions and heavy metals, applied in the restoration of polluted soil, alkali metal compounds, chemical instruments and methods, etc., can solve the problems of secondary pollution of soil, prevent secondary pollution, improve strength, improve strength and toughness Effect

Active Publication Date: 2021-05-28
海岱生态建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And there is no mature product and method in the prior art that can solve the problem of secondary pollution of soil by foreign substances

Method used

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  • A heavy metal ion adsorption blanket, its preparation method and its application in removing heavy metals from soil
  • A heavy metal ion adsorption blanket, its preparation method and its application in removing heavy metals from soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Such as figure 1 As shown, a heavy metal ion adsorption blanket, the adsorption blanket includes an adsorption blanket body 1-2, the adsorption blanket body 1-2 includes graft modified polypropylene and sodium-based primary bentonite, the graft modified polypropylene and The mass ratio of Naji first-grade bentonite is 14:86. The adsorption blanket body 1-2 also includes a sodium alginate film 1-3, and the sodium alginate film 1-3 accounts for 20% of the mass of the adsorption blanket body 1-2. The specification of the adsorption blanket is 25g / m 2 . The bottom side of the adsorption blanket body 1-2 is fixedly connected with a network interweaving structure 1-1. The adsorption blanket body 1-2 is fixedly connected to the mesh interweaving structure 1-1 by knitting. The mesh interweaving structure 1-1 is a fishing net.

Embodiment 2

[0062] Such as figure 1 As shown, a heavy metal ion adsorption blanket, the adsorption blanket includes an adsorption blanket body 1-2, the adsorption blanket body 1-2 includes graft modified polypropylene and sodium-based primary bentonite, the graft modified polypropylene and The mass ratio of Naji grade one bentonite is 14.5:85.5. The adsorption blanket body 1-2 also includes a sodium alginate film 1-3, and the sodium alginate film 1-3 accounts for 22% of the mass of the adsorption blanket body 1-2. The specification of the adsorption blanket is 30g / m 2 . The bottom side of the adsorption blanket body 1-2 is fixedly connected with a network interweaving structure 1-1. The adsorption blanket body 1-2 is fixedly connected to the mesh interweaving structure 1-1 by knitting. The mesh interweaving structure 1-1 is a fishing net.

Embodiment 3

[0064] Such as figure 1 As shown, a heavy metal ion adsorption blanket, the adsorption blanket includes an adsorption blanket body 1-2, the adsorption blanket body 1-2 includes graft modified polypropylene and sodium-based primary bentonite, the graft modified polypropylene and The mass ratio of Naji first grade bentonite is 15:85. The adsorption blanket body 1-2 also includes a sodium alginate film 1-3, and the sodium alginate film 1-3 accounts for 25% of the mass of the adsorption blanket body 1-2. The thickness of the adsorption blanket is the specification g / m 2 . The bottom side of the adsorption blanket body 1-2 is fixedly connected with a network interweaving structure 1-1. The adsorption blanket body 1-2 is fixedly connected to the mesh interweaving structure 1-1 by knitting. The mesh interweaving structure 1-1 is a fishing net.

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Abstract

The application discloses a heavy metal ion adsorption blanket, its preparation method and its application in removing heavy metals from soil, which belongs to the technical field of soil environment improvement. The heavy metal ion adsorption blanket made of bentonite and polypropylene blocks the secondary pollution of the soil by foreign substances. Combined with the adsorption of green plants on heavy metal ions in deep soil, the purpose of comprehensive treatment of heavy metals in soil can be achieved.

Description

technical field [0001] The invention relates to the technical field of soil environment improvement, in particular to a heavy metal ion adsorption blanket, a preparation method and an application in removing heavy metals from soil. Background technique [0002] With the rapid development of industry and agriculture, the problem of soil heavy metal pollution has become prominent, and the work of soil restoration and treatment is urgent. The main heavy metal ions in soil include As, Cd, Co, Cr, Cu, Hg, Ni, Pb and Zn, and the above nine heavy metal ions are mostly distributed in mines and surrounding smelters. Heavy metal ions do not degrade in soil or even in nature, so the focus of research is to enrich, solidify, transfer and concentrate heavy metal ions in soil. [0003] In nature, the organisms at the top of the food chain have higher heavy metal enrichment content. The enrichment process of heavy metal ions in organisms is: plants absorb heavy metals in the soil, herbivo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/28B09C1/00B01J20/30
CPCB01J20/12B01J20/261B01J20/2803B09C1/00
Inventor 姚洪涛于曙光李善立周建超程明
Owner 海岱生态建设有限公司
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