CN107050734A - A kind of incineration of refuse flyash curing agent - Google Patents
A kind of incineration of refuse flyash curing agent Download PDFInfo
- Publication number
- CN107050734A CN107050734A CN201710397001.8A CN201710397001A CN107050734A CN 107050734 A CN107050734 A CN 107050734A CN 201710397001 A CN201710397001 A CN 201710397001A CN 107050734 A CN107050734 A CN 107050734A
- Authority
- CN
- China
- Prior art keywords
- curing agent
- solidification
- bentonite
- magnesium powder
- quick lime
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 31
- 239000010881 fly ash Substances 0.000 title claims abstract description 15
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 38
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000440 bentonite Substances 0.000 claims abstract description 20
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 20
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000292 calcium oxide Substances 0.000 claims abstract description 19
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 19
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- 238000007711 solidification Methods 0.000 abstract description 25
- 230000008023 solidification Effects 0.000 abstract description 25
- 239000002956 ash Substances 0.000 abstract description 12
- 239000000126 substance Substances 0.000 abstract description 9
- 239000010813 municipal solid waste Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000013329 compounding Methods 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 239000000428 dust Substances 0.000 description 10
- 239000004568 cement Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 239000013043 chemical agent Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- LRDIEHDJWYRVPT-UHFFFAOYSA-N 4-amino-5-hydroxynaphthalene-1-sulfonic acid Chemical compound C1=CC(O)=C2C(N)=CC=C(S(O)(=O)=O)C2=C1 LRDIEHDJWYRVPT-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/33—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemical fixing the harmful substance, e.g. by chelation or complexation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/10—Destroying solid waste or transforming solid waste into something useful or harmless involving an adsorption step
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of incineration of refuse flyash curing agent, the curing agent is mixed with by heavy magnesium powder, bentonite and quick lime and formed, and the mass percent of each component is：Heavy magnesium powder 60%~75%, bentonite 5%~15% and quick lime 15%~25%, and above-mentioned each component content sum is 100%.The present invention is formed with heavy magnesium powder, bentonite and quick lime compounding powder, pass through the proportioning of each preferred component, the curing agent solidification effect prepared is good, heavy metal ion in garbage flying ash has obtained effective solidification, solidification age is short, significantly reduces solidification cost, and curing agent stability is good, be not in the problem of harmful substance is leached after solidification, will not also produce other high concentration wastes.
Description
Technical field
The present invention relates to environmental technology field, more particularly to a kind of incineration of refuse flyash curing agent.
Background technology
As centralized burning method is increasingly becoming the major way of China's urban garbage disposal, the safe place of flying ash
Put also turns into scholar's question of common concern with utilizing.Because the shape by various environmental key-elements during landfill is rung, rubbish
Heavy metal in flying ash is possible to migrate and convert, therefore how flying ash is handled with society
Development increasingly attracts attention.Stabilization, flyash curing processing must be carried out before final disposal is carried out to flying ash, this is
Because containing the heavy metals such as the higher lead of leaching concentration, cadmium in flying ash.Certain flying ash can also transport special dangerous waste to
Landfill yard.Many cities all carry out curing process to flying ash in recent years, and obtain good effect.
Current still feasible stabilization processes have following three kinds of methods：
1st, cement solidification technology：Cement solidification is to mix flying dust, cement by a certain percentage to add appropriate water, is allowed to solidification
A kind of method.Cement solidification flying dust technology is a kind of hazardous waste disposal technology of comparative maturity, in economy and operable
Aspect has obvious advantage, but the consumption of cement is high, causes firming body increase-volume rate high, elapses over time, solidifies body portion
Noxious material may gradually dissolution, long-term to environment presence and potential threat；
2nd, melting and solidification technology：Melting and solidification technology, which is mainly, mixes flying dust and the tiny nature of glass, blended granulating and forming
Afterwards, melted under 1000-1400 DEG C of high temperature, melting and solidification technology is high to the volume reduction rate of residue, and solidification effect is good, but fatal scarce
Point is that part noxious material can be evaporated, it is necessary to take vent gas treatment measure, so its system is more complicated, operating cost is high；
3rd, chemical agent stabilization technique：Chemical agent stabilization technique is to utilize chemical agent, and after chemical reaction will be poisonous and harmful
Material is changed into the process of low-solubility, low migration and hypotoxicity material.Conventional stabilizer is inorganic matter and organic matter.Nothing
Machine thing mainly has Na, S and phosphoric acid class medicament, and organic medicament is mainly chelate polymer material, by flying dust with carrying complex
Insoluble medicament is mixed, and harmful substance can be fixed in flying dust, and harmful components leaching in reduction flying dust is reached with this
Possibility.Using these above-mentioned chemicals treatment flying dusts, preferable effect is typically all up, the method has processing procedure letter
It is single, the advantages of equipment investment is few, but have the disadvantage that high concentration inorganic salt wastewater can be produced, it is necessary to further processing.
In view of the deficiencies in the prior art, thus incineration of refuse flyash inorganic agent and processing method in the urgent need to improving, need
Develop the inorganic agent of a kind of more effective and rational incineration of refuse flyash.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of incineration of refuse flyash curing agent, utilizing this
Curing agent is handled incineration of refuse flyash, and the heavy metal ion in garbage flying ash can be made effectively to be solidified, solidification
Age is short, significantly reduces solidification cost, and curing agent stability is good.
To realize above-mentioned technical purpose and the technique effect, the present invention is achieved through the following technical solutions：A kind of rubbish
Rubbish flying ash curing agent, the curing agent is mixed with by heavy magnesium powder, bentonite and quick lime and formed, the quality hundred of each component
Point ratio is：Heavy magnesium powder 60%~75%, bentonite 5%~15% and quick lime 15%~25%, and above-mentioned each component content sum is
100%。
It is preferred that, the mass percent of each component is：Heavy magnesium powder 65%, bentonite 15% and quick lime 20%.
It is preferred that, content of magnesium is 60~80% in the heavy magnesium powder.
It is preferred that, the bentonitic particle mean size is 220~230 mesh.
The beneficial effects of the invention are as follows：The present invention is formed with heavy magnesium powder, bentonite and quick lime compounding powder, is passed through
It is preferred that the proportioning of each component, the curing agent solidification effect prepared is good, the harmful substance in garbage flying ash has been obtained effectively
Solidification, solidification age is short, significantly reduces solidification cost, and curing agent stability is good, is not in harmful substance after solidification
The problem of leaching, it will not also produce other high concentration wastes.
Embodiment
Presently preferred embodiments of the present invention is described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly being defined so as to be made to protection scope of the present invention.
A kind of incineration of refuse flyash curing agent, the curing agent is mixed with by heavy magnesium powder, bentonite and quick lime and formed,
The mass percent of each component is：Heavy magnesium powder 60%~75%, bentonite 5%~15% and quick lime 15%~25%, and it is above-mentioned each
Constituent content sum is 100%.
It is preferred that, the mass percent of each component is：Heavy magnesium powder 65%, bentonite 15% and quick lime 20%.
It is preferred that, content of magnesium is 60~80% in the heavy magnesium powder.
It is preferred that, the bentonitic particle mean size is 220~230 mesh.
Embodiment one：
The mass percent of each component is in curing agent：In heavy magnesium powder 65%, bentonite 15% and quick lime 20%, heavy magnesium powder
Content of magnesium is 70%, according to the proportioning, by heavy magnesium powder, bentonite and quick lime after being fully ground mixing, needed for obtaining
Curing agent.
Embodiment two：
The mass percent of each component is in curing agent：In heavy magnesium powder 75%, bentonite 10% and quick lime 15%, heavy magnesium powder
Content of magnesium is 75%, according to the proportioning, by heavy magnesium powder, bentonite and quick lime after being fully ground mixing, needed for obtaining
Curing agent.
Prepare after curing agent, curing process is carried out to incineration of refuse flyash using the curing agent.Wherein, heavy magnesium powder pair
Heavy metal ion in flying dust has precipitation and suction-operated；Bentonite has suction-operated to the metal ion in flying dust；It is raw
Lime mainly plays fixation to the harmful substance in flying dust.Heavy magnesium powder, bentonite and quick lime mixing, can draw electrostatic
The reaction such as power, Van der Waals force, ion exchange and chemical precipitation is carried out simultaneously, so that the harmful substance in absorption solidification flying dust.
The present invention is formed with heavy magnesium powder, bentonite and quick lime compounding powder, passes through the proportioning of each preferred component, system
Good for the curing agent solidification effect gone out, the harmful substance in garbage flying ash has obtained effectively solidifying, and solidification age is short, greatly
Solidification cost is reduced, and curing agent stability is good, is not in the problem of harmful substance is leached after solidification, will not also produce it
His high concentration waste.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification is made, or other related technical fields are directly or indirectly used in,
Similarly it is included within the scope of the present invention.
Claims (4)
1. a kind of incineration of refuse flyash curing agent, it is characterised in that：The curing agent is mixed by heavy magnesium powder, bentonite and quick lime
It is prepared from, the mass percent of each component is：Heavy magnesium powder 60%~75%, bentonite 5%~15% and quick lime 15%~25%
, and above-mentioned each component content sum is 100%.
2. a kind of incineration of refuse flyash curing agent according to claim 1, it is characterised in that the mass percent of each component
For：Heavy magnesium powder 65%, bentonite 15% and quick lime 20%.
3. a kind of incineration of refuse flyash curing agent according to claim 1, it is characterised in that magnesium contains in the heavy magnesium powder
Measure as 60~80%.
4. a kind of incineration of refuse flyash curing agent according to claim 1, it is characterised in that：The bentonitic average grain
Spend for 220~230 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397001.8A CN107050734A (en) | 2017-05-31 | 2017-05-31 | A kind of incineration of refuse flyash curing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397001.8A CN107050734A (en) | 2017-05-31 | 2017-05-31 | A kind of incineration of refuse flyash curing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107050734A true CN107050734A (en) | 2017-08-18 |
Family
ID=59615968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710397001.8A Pending CN107050734A (en) | 2017-05-31 | 2017-05-31 | A kind of incineration of refuse flyash curing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107050734A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279975A (en) * | 2019-07-23 | 2019-09-27 | 哈德逊（苏州）水技术有限公司 | Incineration of refuse flyash curing agent |
| CN112495984A (en) * | 2020-10-27 | 2021-03-16 | 清大国华环境集团股份有限公司 | Hazardous waste solidification/stabilization comprehensive treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508885A (en) * | 2009-03-13 | 2009-08-19 | 重庆大学 | Refuse incineration flying ash metallurgy sintering treatment fixing agent |
| CN103170488A (en) * | 2013-02-07 | 2013-06-26 | 中国恩菲工程技术有限公司 | Waste incineration fly ash curing agent and treatment method of waste incineration fly ash |
| CN104773989A (en) * | 2015-03-29 | 2015-07-15 | 安徽盛运环保（集团）股份有限公司 | High efficiency waste incineration fly ash solidifying agent |
-
2017
- 2017-05-31 CN CN201710397001.8A patent/CN107050734A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508885A (en) * | 2009-03-13 | 2009-08-19 | 重庆大学 | Refuse incineration flying ash metallurgy sintering treatment fixing agent |
| CN103170488A (en) * | 2013-02-07 | 2013-06-26 | 中国恩菲工程技术有限公司 | Waste incineration fly ash curing agent and treatment method of waste incineration fly ash |
| CN104773989A (en) * | 2015-03-29 | 2015-07-15 | 安徽盛运环保（集团）股份有限公司 | High efficiency waste incineration fly ash solidifying agent |
Non-Patent Citations (3)
| Title |
|---|
| 曾卉等: ""几种固化剂组配修复重金属污染土壤"", 《环境化学》 * |
| 许丽萍编: "《污染土的快速诊断与土工处置技术 第1版第1次》", 31 December 2015, 上海科学技术出版社 * |
| 陈炳睿等: ""6种固化剂对土壤PbCdCuZn的固化效果"", 《农业环境科学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279975A (en) * | 2019-07-23 | 2019-09-27 | 哈德逊（苏州）水技术有限公司 | Incineration of refuse flyash curing agent |
| CN112495984A (en) * | 2020-10-27 | 2021-03-16 | 清大国华环境集团股份有限公司 | Hazardous waste solidification/stabilization comprehensive treatment method |
| CN112495984B (en) * | 2020-10-27 | 2021-10-01 | 清大国华环境集团股份有限公司 | Hazardous waste solidification/stabilization comprehensive treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
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| RJ01 | Rejection of invention patent application after publication |