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Method for processing waste incineration fly ash and garbage concentrated solution through synergetic curing

A waste incineration fly ash and treatment method technology, applied in waste treatment, solid waste removal, etc., can solve the problems of harsh conditions and high costs, and achieve the effect of reducing solidification costs, reducing the use of cement, and reducing the occupied storage capacity

Active Publication Date: 2019-06-21
LIAONING HAITIANGE ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology describes the co-processing method of landfill leachate and fly ash, but this method can only be realized under high temperature and high pressure conditions. Co-processing of filtrate and fly ash

Method used

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  • Method for processing waste incineration fly ash and garbage concentrated solution through synergetic curing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A treatment method for synergistic solidification of waste incineration fly ash and waste concentrate, comprising the following steps:

[0029] The total mass of all solid materials in this embodiment is 50kg;

[0030] (1) take by weighing 15kg of dry waste incineration fly ash;

[0031] The curing base material is 19.5kg, and the curing base material is composed of fly ash, iron ore tailings powder, desulfurized gypsum and red mud, including 7.5kg of fly ash, 5kg of iron ore tailings powder, 5kg of desulfurized gypsum, and 2kg of red mud;

[0032] 10.5kg of curing agent, the curing agent is composed of bentonite, zeolite and cement, of which 5kg of bentonite, 2kg of zeolite and 3.5kg of cement;

[0033] Put the waste incineration fly ash, curing base material and curing agent into the dry material mixer for mixing and stirring, and stir evenly for 3 minutes to form a solid mixture;

[0034] (2) Add 25 kg of garbage concentrate to the solid mixture, and continue to st...

Embodiment 2

[0038] A treatment method for synergistic solidification of waste incineration fly ash and waste concentrate, comprising the following steps:

[0039] The total mass of all solid materials in this embodiment is 50kg;

[0040] (1) Take by weighing 17.5kg of dry waste incineration fly ash;

[0041] The curing base material is 17kg, and the curing base material is composed of fly ash, iron ore tailings powder, desulfurized gypsum and red mud, including 6kg of fly ash, 5kg of iron ore tailings powder, 4kg of desulfurized gypsum, and 2kg of red mud;

[0042] 11.5kg of curing agent, the curing agent is composed of bentonite, zeolite, and cement, of which 4kg of bentonite, 3kg of zeolite, and 4.5kg of cement, put the waste incineration fly ash, curing base material and curing agent into the dry material mixer for mixing and stirring, evenly 2 minutes to form a solid mixture;

[0043](2) Add 25 kg of garbage concentrate to the solid mixture, and continue to stir for 2 minutes to for...

Embodiment 3

[0047] A treatment method for synergistic solidification of waste incineration fly ash and waste concentrate, comprising the following steps:

[0048] The total mass of all solid materials in this embodiment is 100kg;

[0049] (1) take by weighing 40kg of dry waste incineration fly ash;

[0050] The curing base material is 27kg, and the curing base material is composed of fly ash, iron ore tailings powder and desulfurized gypsum, including 12kg of fly ash, 10kg of iron ore tailings powder, and 5kg of desulfurized gypsum;

[0051] 26kg of curing agent, the curing agent is composed of diatomite, zeolite and cement, wherein 8kg of diatomite, 6kg of zeolite and 12kg of cement are put into the dry material mixer to mix and stir the waste incineration fly ash, curing base material and curing agent, Stir evenly for 10 minutes to form a solid mixture;

[0052] (2) Add 60 kg of garbage concentrate to the solid mixture, and continue stirring for 10 minutes to form a uniform slurry-lik...

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Abstract

The invention discloses a method for processing waste incineration fly ash and a garbage concentrated solution through synergetic curing, and solves the problems that the waste incineration fly ash and the garbage concentrated solution which are two main pollution wastes are difficult to handle, and the processing cost is relatively high. The treatment method comprises the following steps of: mixing and stirring the waste incineration fly ash, a curing base material, and a curing agent to form a solid mixture; adding the garbage concentrated solution to the solid mixture, and continuing to stir to form a uniform slurry type solid-liquid mixture; adding a stabilizer to the slurry type solid-liquid mixture, uniformly stirring, putting in a mold, maintaining to form a solidified body, and finally placing the solidified body in a designated area of a refuse landfill for storage or backfilling. On the basis of ensuring the stability of the solidified body, the method not only realizes the safe processing of the waste incineration fly ash, but also realizes the in-situ resource utilization of the garbage concentrated solution of refuse landfills and incineration plants, and realizes theco-processing of the garbage concentrated solution and the waste incineration fly ash in plant areas, and greatly reduces the operating costs of enterprises.

Description

technical field [0001] The invention relates to the technical field of resource utilization of bulk solid waste and harmless disposal of hazardous waste, in particular to a method for co-solidifying waste incineration fly ash and waste concentrate. Background technique [0002] Waste incineration fly ash refers to the trappings of the flue gas purification system in waste incineration equipment and the bottom ash settled at the bottom of the flue and chimney. Because it contains heavy metals such as lead, mercury, chromium, and highly carcinogenic dioxins, it is listed Into my country's "National Hazardous Waste List" waste category HW18 (waste code 772-002-18). At the same time, after meeting the requirements of Article 6.3 of the "Standards for Pollution Control of Domestic Waste Landfill Sites" (GB16889-2008), they can enter the domestic waste landfill for landfill and enjoy the right to exempt hazardous waste from management. [0003] At present, the common disposal meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00
CPCY02W30/20
Inventor 宋军孔德勇刘光聪
Owner LIAONING HAITIANGE ENVIRONMENTAL PROTECTION TECH
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