CN109622560A - The processing method of incineration of refuse flyash - Google Patents
The processing method of incineration of refuse flyash Download PDFInfo
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- CN109622560A CN109622560A CN201811472843.6A CN201811472843A CN109622560A CN 109622560 A CN109622560 A CN 109622560A CN 201811472843 A CN201811472843 A CN 201811472843A CN 109622560 A CN109622560 A CN 109622560A
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- sodium
- incineration
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- 239000010881 fly ash Substances 0.000 title claims abstract description 27
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000004568 cement Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 12
- 239000002956 ash Substances 0.000 claims abstract description 10
- GSFSVEDCYBDIGW-UHFFFAOYSA-N 2-(1,3-benzothiazol-2-yl)-6-chlorophenol Chemical compound OC1=C(Cl)C=CC=C1C1=NC2=CC=CC=C2S1 GSFSVEDCYBDIGW-UHFFFAOYSA-N 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 239000002105 nanoparticle Substances 0.000 claims abstract description 9
- 239000007864 aqueous solution Substances 0.000 claims abstract description 8
- 235000019799 monosodium phosphate Nutrition 0.000 claims abstract description 8
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims abstract description 8
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 7
- 239000004094 surface-active agent Substances 0.000 claims abstract description 5
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 claims abstract description 4
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims abstract description 3
- 239000000654 additive Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 9
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical group OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 6
- 235000015424 sodium Nutrition 0.000 claims description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 5
- 229940009662 edetate Drugs 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010813 municipal solid waste Substances 0.000 abstract description 4
- 239000010782 bulky waste Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 10
- 238000002386 leaching Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000004056 waste incineration Methods 0.000 description 4
- 239000002738 chelating agent Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 150000004696 coordination complex Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- 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
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/21—Agglomeration, binding or encapsulation of solid waste using organic binders or matrix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention discloses a kind of processing method of incineration of refuse flyash, comprising the following steps: 1) sodium dimethyl dithiocarbamate, sodium dihydrogen phosphate, EDETATE SODIUM is carried out chelating curing process to flying ash；2) by step 1) treated chelating curing process after flying dust and cement, nano-sized carbon progress it is dry-mixed, obtain fly ash mixture；3) fly ash mixture obtained by step 2) is mixed with sodium silicate aqueous solution, and 2~4h of surfactant mixed processing is added.Formula material of the invention is easy to get, effect is good, safety and environmental protection, at low cost, not only mitigates the burden of bulky refuse treatment plant, while being more suitable for the use of small-sized rubbish treatment plant.
Description
Technical field
The present invention relates to field of domestic garbage treatment, and in particular to a kind of processing method of incineration of refuse flyash.
Background technique
Along with the development of world economy and the improvement of living standards of the people, generation greatly improves therewith,
" garbage-surrounded city " phenomenon is commonplace and has been increasingly becoming the bottleneck that restriction city is further developed.House refuse subtracts after burning
Quantify significant (volume reduction 90%, loss of weight 70%), burning heat and steam can be recycled and be used to alleviate increasingly severe energy
Source crisis, therefore waste incineration obtains worldwide approval and is widely adopted.In some developed countries, such as Poland,
France etc., burning ratio has been more than 60%, and in Denmark, Japan, Germany and Switzerland, which is even more than 80%.By
The development of many years, China's consumer waste incineration amount increase to 5329.9 ten thousand tons in 2014 from 178.38 ten thousand tons of 2001, burn
Burn corresponding 1% from 2001 of ratio increases 2014 32.5%；The ability of China's waste incineration at this stage is about 23.3
Ten thousand ton per days, according to Correlative plan, national consumer waste incineration ability will be more than 400,000 ton per days in the year two thousand twenty, reachable in 2025
500000 ton per days.
Currently, there are mainly three types of processing methods in flying dust, one is using cement solidification technology to heavy metals immobilization at
Reason, heavy metal is reacted by ion exchange, passivation, absorption, chemisorption, sedimentation with the cement of aquation, finally in the water of cement
Change and form the more stable compound such as hydroxide or complex compound on the surface silicate colloid C-H-S, but this method has flying dust
Increase-volume amount it is big, the shortcomings that increasing the volume of landfill；Second is that melting and solidification method, this method is generally acknowledged at present the safest, steady
Fixed flying ash stabilizing/curing technology, this method mainly form flying ash and nature of glass powder mixing granulation,
A period of time is melted under 1000~1400 DEG C of high temperature, but this method has the shortcomings that energy consumption is high；Third is that chemical agent stabilization method, changes
Learn medicament by the chemical reaction with heavy metal by its ion transit at low-solubility, low migration high-molecular complex or
Inorganic mineral, core are the choosing of the selection of chelating agent, especially chemical agent to main polluted heavy metals ion
Selecting property, and the stability of complex compound is generated, especially to the leachability of acid solution；It can be carried out industrial metaplasia currently on the market
In the method for production, the complex compound that generates with heavy metal can leaching concentration it is high, be unable to satisfy environmentally friendly needs.
Summary of the invention
The present invention provides a kind of processing method of incineration of refuse flyash, so that treated heavy metal complex leaching concentration
It substantially reduces, it is at low cost.
To achieve the goals above, the invention adopts the following technical scheme: a kind of processing method of incineration of refuse flyash, packet
It includes following steps: 1) flying ash chelate by sodium dimethyl dithiocarbamate, sodium dihydrogen phosphate, EDETATE SODIUM solid
Change processing；Fly ash granule group is obtained flyash curing body by the Leaching for reducing heavy metal in flying dust, and reduction was constructed
Flying dust fugitive dust in journey；
2) by step 1) treated chelating curing process after flying dust and cement, nano-sized carbon progress it is dry-mixed, obtain flying dust
Mixture；
3) fly ash mixture obtained by step 2) is mixed with sodium silicate aqueous solution, and surfactant mixed processing 2 is added
~4h.Aqueous solution water can be industrial water.Industrial water low cost, has saved cost, also can reach same effect
Fruit.
Further, 20~40 parts of sodium dimethyl dithiocarbamate, 10~20 parts of biphosphates are added in step 1)
Sodium, 2~10 parts of EDETATE SODIUMs.
Further, the cement additive amount is the 10% of flying dust dry weight.Enhance to burn in the case where reducing and holding and fly
The intensity of ash plays the effect of bonding to flying dust using cement as adhesive；
Further, the surfactant is lauryl sodium sulfate, and additive amount is 2~6 parts.
Further, the nano-sized carbon additive amount is 4~8 parts, and partial size is 60~80nm.
Bring of the present invention has the beneficial effect that 1) chelating agent is reacted with numerous heavy metal ion, reduces heavy metal in flying dust
Leaching fly ash granule group is obtained into flyash curing body, reduce flying dust fugitive dust in work progress；
2) formula material of the invention is easy to get, effect is good, safety and environmental protection, at low cost, not only mitigates bulky refuse treatment plant
Burden, while be more suitable for small-sized rubbish treatment plant use；
3) the application joined nano-sized carbon, so that the stability of heavy metal complex greatly increases, hence it is evident that reduce leaching
Toxicity realizes the purpose of the low evilization of incineration of refuse flyash；
4) preparation method of chelating agent of the present invention is easy to operate, without putting into high-cost instrument, has saved garbage disposal
Cost.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.
Embodiment 1
1) by 20 parts of sodium dimethyl dithiocarbamate, 10 parts of sodium dihydrogen phosphates, 2 parts of EDETATE SODIUMs to flying ash into
Row chelating curing process；
2) by step 1) treated chelating curing process after flying dust and cement, 4 parts of nano-sized carbon (partial size 60nm) into
Row is dry-mixed, and the cement additive amount is the 10% of flying dust dry weight, obtains fly ash mixture；
3) fly ash mixture obtained by step 2) is mixed with sodium silicate aqueous solution, and is added 2 parts of lauryl sodium sulfate and mixes
Close processing 2h.
For handling the flying dust of certain destructor plant, data comparison is shown in Table 1.
Embodiment 2
1) by 30 parts of sodium dimethyl dithiocarbamate, 15 parts of sodium dihydrogen phosphates, 6 parts
EDETATE SODIUM carries out chelating curing process to flying ash；
2) by step 1) treated chelating curing process after flying dust and cement, 6 parts of nano-sized carbon (partial size 70nm) into
Row is dry-mixed, and the cement additive amount is the 10% of flying dust dry weight, obtains fly ash mixture；
3) fly ash mixture obtained by step 2) is mixed with sodium silicate aqueous solution, and is added 4 parts of lauryl sodium sulfate and mixes
Close processing 3h.
For handling the flying dust of certain destructor plant, data comparison is shown in Table 1.
Embodiment 3
1) by 40 parts of sodium dimethyl dithiocarbamate, 20 parts of sodium dihydrogen phosphates, 10 parts of EDETATE SODIUMs to flying ash
Carry out chelating curing process；
2) by step 1) treated chelating curing process after flying dust and cement, 8 parts of nano-sized carbon (partial size 80nm) into
Row is dry-mixed, and the cement additive amount is the 10% of flying dust dry weight, obtains fly ash mixture；
3) fly ash mixture obtained by step 2) is mixed with sodium silicate aqueous solution, and is added 6 parts of lauryl sodium sulfate and mixes
Close processing 4h.
For handling the flying dust of certain destructor plant, data comparison is shown in Table 1.
Reference examples 1
1) by 40 parts of sodium dimethyl dithiocarbamate, 20 parts of sodium dihydrogen phosphates, 10 parts of EDETATE SODIUMs to flying ash
Carry out chelating curing process；
3) fly ash mixture obtained by step 1) is mixed with sodium silicate aqueous solution, and is added 6 parts of lauryl sodium sulfate and mixes
Close processing 4h.
For handling the flying dust of certain destructor plant, data comparison is shown in Table 1.
Table 1
Above-described is only embodiments of the present invention, for those of ordinary skill in the art, is not being departed from
Under the premise of the invention is conceived, improvement can also be made, but these are all belonged to the scope of protection of the present invention.
Claims (5)
1. a kind of processing method of incineration of refuse flyash, it is characterised in that: the following steps are included:
1) sodium dimethyl dithiocarbamate, sodium dihydrogen phosphate, EDETATE SODIUM are subjected to chelating curing process to flying ash；
2) by step 1) treated chelating curing process after flying dust and cement, nano-sized carbon carry out it is dry-mixed, obtain flying dust mix
Object；
3) fly ash mixture obtained by step 2) is mixed with sodium silicate aqueous solution, and 2~4h of surfactant mixed processing is added
?.
2. the processing method of incineration of refuse flyash according to claim 1, it is characterised in that: 20~40 are added in step 1)
Part sodium dimethyl dithiocarbamate, 10~20 parts of sodium dihydrogen phosphates, 2~10 parts of EDETATE SODIUMs.
3. the processing method of incineration of refuse flyash according to claim 2, it is characterised in that: the cement additive amount is
The 10% of flying dust dry weight.
4. the processing method of incineration of refuse flyash according to claim 3, it is characterised in that: the surfactant is
Lauryl sodium sulfate, additive amount are 2~6 parts.
5. the processing method of the incineration of refuse flyash according to claim 1 to 4, it is characterised in that: described
Nano-sized carbon additive amount is 4~8 parts, and partial size is 60~80nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811472843.6A CN109622560A (en) | 2018-12-04 | 2018-12-04 | The processing method of incineration of refuse flyash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811472843.6A CN109622560A (en) | 2018-12-04 | 2018-12-04 | The processing method of incineration of refuse flyash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109622560A true CN109622560A (en) | 2019-04-16 |
Family
ID=66070958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811472843.6A Pending CN109622560A (en) | 2018-12-04 | 2018-12-04 | The processing method of incineration of refuse flyash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109622560A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08257530A (en) * | 1995-03-24 | 1996-10-08 | Komatsu Ltd | Incineration ash treatment method |
| CN1586743A (en) * | 2004-09-07 | 2005-03-02 | 上海大学 | Treating method for city life garbage burning flyash |
| CN102642879A (en) * | 2012-04-27 | 2012-08-22 | 环境保护部华南环境科学研究所 | Method for treating landfill leachate and waste incineration fly ash simultaneously by adopting formulation and synergistic technology |
| CN105964652A (en) * | 2016-05-10 | 2016-09-28 | 苏州大学 | Curing and stabilizing treatment method for garbage incineration fly ash |
| CN106955451A (en) * | 2017-02-27 | 2017-07-18 | 湖南云平环保科技有限公司 | Incineration of refuse flyash heavy metal chelant and preparation method thereof |
| CN107537129A (en) * | 2016-06-28 | 2018-01-05 | 李�杰 | A kind of heavy metal stabilizer and its application method for administering incineration of refuse flyash |
| CN108744383A (en) * | 2018-08-06 | 2018-11-06 | 成都市兴蓉再生能源有限公司 | A kind of compound incineration of refuse flyash chelating agent and preparation method thereof |
-
2018
- 2018-12-04 CN CN201811472843.6A patent/CN109622560A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08257530A (en) * | 1995-03-24 | 1996-10-08 | Komatsu Ltd | Incineration ash treatment method |
| CN1586743A (en) * | 2004-09-07 | 2005-03-02 | 上海大学 | Treating method for city life garbage burning flyash |
| CN102642879A (en) * | 2012-04-27 | 2012-08-22 | 环境保护部华南环境科学研究所 | Method for treating landfill leachate and waste incineration fly ash simultaneously by adopting formulation and synergistic technology |
| CN105964652A (en) * | 2016-05-10 | 2016-09-28 | 苏州大学 | Curing and stabilizing treatment method for garbage incineration fly ash |
| CN107537129A (en) * | 2016-06-28 | 2018-01-05 | 李�杰 | A kind of heavy metal stabilizer and its application method for administering incineration of refuse flyash |
| CN106955451A (en) * | 2017-02-27 | 2017-07-18 | 湖南云平环保科技有限公司 | Incineration of refuse flyash heavy metal chelant and preparation method thereof |
| CN108744383A (en) * | 2018-08-06 | 2018-11-06 | 成都市兴蓉再生能源有限公司 | A kind of compound incineration of refuse flyash chelating agent and preparation method thereof |
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Application publication date: 20190416 |