Heavy metal stabilizer for treating waste incineration fly ash and using method thereof

A heavy metal stabilizer and waste incineration fly ash technology, which is applied in the direction of protection devices against harmful chemicals, can solve the problems of low efficiency and large pollution, and achieve the effect of small usage, low cost and low cost

Inactive Publication Date: 2020-05-05
南京化学工业园环保产业协同创新有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It pollutes a lot and has low benefit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The invention provides a heavy metal stabilizer for treating waste incineration fly ash, which has the following components and contents: phosphate: 10-20 parts, silicate: 5-10 parts, inorganic alkaline substance: 5-10 parts, adsorption 5-8 parts of stabilizer, 5-10 parts of stabilizer, 1-2 parts of activator, 1-5 parts of cellulose, 10-20 parts of sulfide, 5-20 parts of organic chelate, curing agent: 10-20 parts, metal chelating agent: 20-30 parts and water: 40-50 parts.

[0018] The use method of the heavy metal stabilizer for controlling waste incineration fly ash comprises the following steps:

[0019] The first step: first, the heavy metal stabilizer and the A certain proportion of waste incineration fly ash is mixed, placed in a mixer for dry mixing, the stirring speed is 150-200r / min, and the stirring time is 30 minutes, and the mixture is obtained by stirring until uniformly mixed.

[0020] The second step: Add an adsorbent and a stabilizer with a ratio of 1:1...

Embodiment 2

[0027] The invention provides a heavy metal stabilizer for treating waste incineration fly ash, which has the following components and contents: phosphate: 10-20 parts, silicate: 5-10 parts, inorganic alkaline substance: 5-10 parts, adsorption 5-8 parts of stabilizer, 5-10 parts of stabilizer, 1-2 parts of activator, 1-5 parts of cellulose, 10-20 parts of sulfide, 5-20 parts of organic chelate, curing agent: 10-20 parts, metal chelating agent: 20-30 parts and water: 40-50 parts.

[0028] The use method of the heavy metal stabilizer for controlling waste incineration fly ash comprises the following steps:

[0029] The first step: first, the heavy metal stabilizer composed of phosphate, silicate, inorganic alkaline substance, sulfide, organic chelate and metal chelating agent and A certain proportion of waste incineration fly ash is mixed, placed in a mixer for dry mixing, the stirring speed is 150-200r / min, and the stirring time is 20 minutes, and the mixture is obtained by st...

Embodiment 3

[0037] The invention provides a heavy metal stabilizer for treating waste incineration fly ash, which has the following components and contents: phosphate: 10-20 parts, silicate: 5-10 parts, inorganic alkaline substance: 5-10 parts, adsorption 5-8 parts of stabilizer, 5-10 parts of stabilizer, 1-2 parts of activator, 1-5 parts of cellulose, 10-20 parts of sulfide, 5-20 parts of organic chelate, curing agent: 10-20 parts, metal chelating agent: 20-30 parts and water: 40-50 parts.

[0038] The use method of the heavy metal stabilizer for controlling waste incineration fly ash comprises the following steps:

[0039] The first step: firstly, the heavy metal stabilizer and the A certain ratio of waste incineration fly ash is mixed, and it is placed in a mixer for dry mixing at a stirring speed of 180-200 r / min for 30 minutes, until it is evenly mixed to obtain a mixture.

[0040] The second step: add an adsorbent and a stabilizer with a ratio of 1:2 to the mixture obtained in the...

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PUM

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Abstract

The invention discloses a heavy metal stabilizer for treating waste incineration fly ash and a using method of the heavy metal stabilizer. The heavy metal stabilizer comprises the following components: 10 to 20 parts of a phosphate; 5 to 10 parts of a silicate; 5-10 parts of an inorganic alkaline substance, 5-8 parts of an adsorbent, 5-10 parts of a stabilizer, 1 to 2 parts of an activating agent;1 to 5 parts of cellulose; 10-20 parts of a curing agent and 20-30 parts of a metal chelating agent; the phosphate is one or more of a calcium magnesium phosphate fertilizer, tripotassium phosphate,monopotassium phosphate and dipotassium phosphate. The beneficial effects of the heavy metal stabilizer are that: according to the heavy metal stabilizer for treating the waste incineration fly ash and the using method of the heavy metal stabilizer, the stabilizer formed by mixing the phosphate, the inorganic alkaline substance, the adsorbent, the stabilizer, the activating agent and the like arefully contacted with the incineration fly ash, so that certain treatment effect on fly ash is achieved; the method has the advantages of no secondary pollution, no nuisance, simple use method and lowcost, conforms to the energy-saving and carbon-reducing benefits and economic benefits, and has favorable application prospects.

Description

technical field [0001] The invention relates to the field of heavy metal stabilizers, in particular to a heavy metal stabilizer for treating waste incineration fly ash and a use method thereof. Background technique [0002] Domestic waste incineration fly ash is mostly processed by chelation curing, mainly using organic chelating agents, supplemented by inorganic curing agents such as cement. It is a processing method in which cement and organic chelating agent solution are mixed with fly ash, stirred, bonded and solidified into hard blocks. [0003] Commonly used heavy metal stabilization agents can be divided into inorganic agents and organic agents. Organic agents mainly use polymers as chelating agents, mainly including pyrrolidine, imine, thiourea, and carbamic acid. Heavy metals are included in the molecule to generate insoluble reactants, so as to achieve the purpose of stabilizing heavy metals. Inorganic agents mainly include lime, sulfide (sodium sulfide, sodium h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D3/33A62D3/40A62D101/08
CPCA62D3/33A62D3/40A62D2101/08A62D2203/02
Inventor 王雷
Owner 南京化学工业园环保产业协同创新有限公司
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