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Stabilizing agentia used for treating waste residue containing beryllium and preparation method and application thereof

A stabilization and waste slag technology, which is applied to chemical instruments and methods, solid waste removal, transportation and packaging, etc., can solve the problems of no special stabilizer for beryllium-containing waste slag, no beryllium-containing waste slag, etc., to achieve the preparation method and The method of use is simple, the cost is low, and it is beneficial to the effect of popularization and application

Inactive Publication Date: 2019-03-12
湖南省环境保护科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as of now, there has not been a case of treatment of beryllium-containing waste residue nationwide, and there is no special stabilizer for beryllium-containing waste residue

Method used

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  • Stabilizing agentia used for treating waste residue containing beryllium and preparation method and application thereof
  • Stabilizing agentia used for treating waste residue containing beryllium and preparation method and application thereof
  • Stabilizing agentia used for treating waste residue containing beryllium and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The stabilizer agent for treating waste residue containing beryllium comprises the following components in parts by mass: 15 parts of fly ash and 85 parts of portland cement.

[0022] The preparation method of the stabilizing agent for treating beryllium-containing waste slag is as follows: uniformly mix the fly ash and portland cement according to the mass ratio to obtain the finished product.

Embodiment 2

[0024] The stabilizer agent for treating waste residue containing beryllium comprises the following components in parts by mass: 25 parts of sepiolite and 75 parts of portland cement.

[0025] The preparation method of the stabilizing agent for treating beryllium-containing waste slag is as follows: uniformly mix the sepiolite and Portland cement according to the mass ratio to obtain the finished product.

Embodiment 3

[0027] The stabilizer agent for treating beryllium-containing waste slag includes the following components in parts by mass: 20 parts of waterworks sludge and 80 parts of portland cement.

[0028] The preparation method of the stabilizing agent for treating beryllium-containing waste slag is as follows: according to the mass ratio, uniformly mix the residual sludge of the water supply plant with Portland cement to obtain the product.

[0029] Stabilization treatment of waste slag containing beryllium was carried out by using the stabilizing agents in Examples 1 to 3 respectively. Take the beryllium-containing waste slag particles that are broken into particle size ≤ 0.3mm after drying, wherein the beryllium content is 3500mg / kg, and the fluorine content is 40400mg / kg. Mix the stabilizing agents obtained in Examples 1 to 3 with the beryllium-containing waste residue at a mass ratio of 0.8:1, and after uniform mixing, add water at a solid-to-liquid ratio of 1: (0.5 to 0.8) and s...

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PUM

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Abstract

The invention relates to a stabilizing agentia used for treating waste residue containing beryllium and a preparation method and application thereof and belongs to the technical field of hazardous waste treatment. The stabilizing agentia used for treating the waste residue containing beryllium comprises the following components including, by mass part, 15-25 parts of conditioning agent, 5-15 partsof additive and 60-80 parts of curing agent, wherein the conditioning agent is coal ash or sepiolite or remnant mud of a water supply factory, and the additive is monopotassium phosphate, or calciumsuperphosphate, or sodium sulfide or calcium oxide. The stabilizing agentia used for treating the waste residue containing beryllium can remarkably stabilize and cure beryllium and fluorine in the waste residue containing beryllium, the leaching-out concentration of beryllium and fluorine in the waste residue containing beryllium is reduced to the greatest extent, the curing rate reaches over 99%,the leaching-out concentration of beryllium is lower than the leaching-out toxicity identifying standard value, and the waste residue containing beryllium is converted from the hazardous waste into common solid waste. The stabilizing agentia is low in cost, the preparation method and the using method are simple, and the stabilizing agentia is beneficial for being applied and popularized.

Description

technical field [0001] The invention belongs to the technical field of hazardous waste treatment, and in particular relates to a stabilizing agent for treating waste residue containing beryllium, a preparation method and application thereof. Background technique [0002] Beryllium is a scarce strategic resource, which is mainly manifested in the small reserves and high demand. Beryllium is mainly produced in a few countries such as the United States, Japan, the Commonwealth of Independent States, China, and India in the world. Moreover, the demand for beryllium in the world is increasing at an annual rate of 5% to 6%. Beryllium metal, beryllium compounds and beryllium alloys are widely used in aerospace, nuclear industry, and electronics industry. The production process of beryllium metal products is generally the process of beryllium ore - beneficiation - beryllium concentrate - pretreatment - leaching - beryllium-containing waste slag. Due to the high fluorine content in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D3/33B09B5/00B09B3/00A62D101/49A62D101/40
CPCA62D3/33B09B5/00A62D2101/49A62D2101/40B09B3/10
Inventor 许友泽赵媛媛付广义向仁军成应向钟宇刘丹妮
Owner 湖南省环境保护科学研究院
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