Composite material for recovering heavy metal in river bed silt and manufacture method thereof

A composite material, heavy metal technology, applied in the directions of alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve problems such as pollution, and achieve the effects of low cost, low energy loss, and excellent elastic properties

Inactive Publication Date: 2017-11-24
郑平珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, heavy metals discharged with wastewater, even if the concentration is small, can accumulate in algae and sediment, be absorbed by the surface of fish and shellfish, produce food chain concentration, and cause public nuisance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A composite material for heavy metal recovery from river bottom and mud, characterized in that: the composite material is a fishing net structure as a whole, and the fishing net structure is composed of a plurality of composite wires, and the composite wire is composed of a core, an adsorption material and an adsorption structure wherein the core constitutes the axis of the composite wire, and the adsorption structure is set on the surface of the core with a thickness of 2.1 mm; the core is a VDCrSi oil-quenched and tempered steel wire with a diameter of 0.5 mm and a blue surface treatment; the adsorption material includes Sodium lignosulfonate, sinapyl alcohol, zeolite and red mud in a mass ratio of 3:2:5:2; the adsorption structure is specifically modified wear-resistant macroporous silica gel type I.

[0026] 2. A method for manufacturing the composite material for recovering heavy metals in mud at the bottom of the river according to claim 1, characterized in that it...

Embodiment 2

[0043] The whole is consistent with Example 1, the difference is:

[0044]A composite material for heavy metal recovery from river bottom and mud, characterized in that: the composite material is a fishing net structure as a whole, and the fishing net structure is composed of a plurality of composite wires, and the composite wire is composed of a core, an adsorption material and an adsorption structure wherein the core constitutes the axis of the composite wire, and the adsorption structure is set on the surface of the core with a thickness of 2 mm; the core is a VDCrSi oil-quenched and tempered steel wire with a diameter of 0.4 mm and a blue surface treatment; the adsorption material includes Sodium lignosulfonate, sinapyl alcohol, zeolite, and red mud at a ratio of 3:2:5:2; the adsorption structure is specifically modified wear-resistant macroporous silica gel type I.

[0045] The method for making the above-mentioned composite material for heavy metal recovery in mud at the...

Embodiment 3

[0056] The whole is consistent with Example 1, the difference is:

[0057] A composite material for heavy metal recovery from river bottom and mud, characterized in that: the composite material is a fishing net structure as a whole, and the fishing net structure is composed of a plurality of composite wires, and the composite wire is composed of a core, an adsorption material and an adsorption structure Wherein the core constitutes the composite wire axis, and the adsorption structure is set on the surface of the core, with a thickness of 2.5mm; the core is a VDCrSi oil-quenched and tempered steel wire with a diameter of 0.5mm and a blue surface treatment; the adsorption material includes Sodium lignosulfonate, sinapyl alcohol, zeolite, and red mud in a ratio of 3:2:5:2; the adsorption structure is specifically modified wear-resistant macroporous silica gel type I.

[0058] The method for making the above-mentioned composite material for heavy metal recovery in mud at the bott...

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Abstract

The invention relates to a composite material for recovering heavy metal in river bed silt and a manufacture method thereof. The composite material is a fishing net structure, which is composed of multiple composite filaments. The composite filament is composed of a core part, an adsorption material and an adsorption structure. The core part forms axis of the composite filament, the adsorption structures sleeves the surface of the core part, and thickness is 2mm-2.5mm. The core part is a VDCrSi oil-hardened and tempered steel wire which has diameter of 0.4-0.5 mm and has undergone surface bluing treatment. The adsorption material contains sodium lignosulfonate, sinapyl alcohol, zeolite and red mud at the mass ratio of 3:2:5:2. The adsorption structure is specifically modified wear-resistant macroporous silica gel Type I. The composite material for recovering heavy metal in river bed silt can adsorb heavy metal materials in river bed silt; available resources are recovered; and pollution is reduced.

Description

technical field [0001] The invention relates to the field of environmental protection management, in particular to a composite material for recycling heavy metals in river bottom mud and a manufacturing method thereof. Background technique [0002] At present, due to the mining, smelting and processing of heavy metals in China, many heavy metals such as lead, mercury, cadmium, cobalt, etc. enter the water body and cause serious environmental pollution. For example, heavy metals discharged with wastewater, even if the concentration is small, can accumulate in algae and bottom mud, be absorbed by the surface of fish and shellfish, produce food chain concentration, and cause public nuisance. The benefit or harm of metals in water depends not only on the type and physical and chemical properties of the metal, but also on the concentration, valence and form of the metal. Even if the concentration of beneficial metal elements exceeds a certain value, it will have severe toxicity, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F11/00C02F101/20
CPCB01J20/02B01J20/165B01J20/22B01J20/24B01J20/28011B01J20/28014B01J20/28085B01J2220/46C02F11/004C02F2101/20C02F2103/007
Inventor 郑平珍
Owner 郑平珍
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