CN109647850A - The processing system of collaboration processing incineration of refuse flyash and garbage leachate - Google Patents
The processing system of collaboration processing incineration of refuse flyash and garbage leachate Download PDFInfo
- Publication number
- CN109647850A CN109647850A CN201811489177.7A CN201811489177A CN109647850A CN 109647850 A CN109647850 A CN 109647850A CN 201811489177 A CN201811489177 A CN 201811489177A CN 109647850 A CN109647850 A CN 109647850A
- Authority
- CN
- China
- Prior art keywords
- flying dust
- parts
- leachate
- processing system
- incineration
- 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.)
- Granted
Links
- 238000012545 processing Methods 0.000 title claims abstract description 89
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 50
- 239000010881 fly ash Substances 0.000 title claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 109
- 238000006243 chemical reaction Methods 0.000 claims abstract description 49
- 238000002844 melting Methods 0.000 claims abstract description 42
- 230000008018 melting Effects 0.000 claims abstract description 42
- 238000005406 washing Methods 0.000 claims abstract description 34
- 239000000706 filtrate Substances 0.000 claims abstract description 31
- 239000002671 adjuvant Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000001035 drying Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 239000002956 ash Substances 0.000 claims abstract description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003546 flue gas Substances 0.000 claims abstract description 7
- 229910001385 heavy metal Inorganic materials 0.000 claims description 50
- 239000000654 additive Substances 0.000 claims description 30
- 230000000996 additive effect Effects 0.000 claims description 30
- 150000002500 ions Chemical class 0.000 claims description 29
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000004568 cement Substances 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 11
- 239000001569 carbon dioxide Substances 0.000 claims description 11
- 239000007767 bonding agent Substances 0.000 claims description 10
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 9
- 239000003456 ion exchange resin Substances 0.000 claims description 9
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- PQHYOGIRXOKOEJ-UHFFFAOYSA-N 2-(1,2-dicarboxyethylamino)butanedioic acid Chemical compound OC(=O)CC(C(O)=O)NC(C(O)=O)CC(O)=O PQHYOGIRXOKOEJ-UHFFFAOYSA-N 0.000 claims description 7
- 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 claims description 7
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- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
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- 239000002689 soil Substances 0.000 claims description 2
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- 230000000052 comparative effect Effects 0.000 description 30
- 238000002360 preparation method Methods 0.000 description 17
- 238000002386 leaching Methods 0.000 description 11
- 229960004424 carbon dioxide Drugs 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
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- 238000001514 detection method Methods 0.000 description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 3
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- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 238000005453 pelletization Methods 0.000 description 3
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000002361 compost Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 229940116007 ferrous phosphate Drugs 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 229910000155 iron(II) phosphate Inorganic materials 0.000 description 2
- SDEKDNPYZOERBP-UHFFFAOYSA-H iron(ii) phosphate Chemical compound [Fe+2].[Fe+2].[Fe+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O SDEKDNPYZOERBP-UHFFFAOYSA-H 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
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- 238000003672 processing method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910001428 transition metal ion Inorganic materials 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000206761 Bacillariophyta Species 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- XUMBMVFBXHLACL-UHFFFAOYSA-N Melanin Natural products O=C1C(=O)C(C2=CNC3=C(C(C(=O)C4=C32)=O)C)=C2C4=CNC2=C1C XUMBMVFBXHLACL-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- GCNLQHANGFOQKY-UHFFFAOYSA-N [C+4].[O-2].[O-2].[Ti+4] Chemical compound [C+4].[O-2].[O-2].[Ti+4] GCNLQHANGFOQKY-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
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- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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- 231100000572 poisoning Toxicity 0.000 description 1
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- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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- 230000006641 stabilisation Effects 0.000 description 1
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- 231100000816 toxic dose Toxicity 0.000 description 1
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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
-
- 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
-
- 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
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/30—Incineration ashes
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses the processing system of a kind of collaboration processing incineration of refuse flyash and garbage leachate, including be connected with flue gas purifying equipment flying dust collecting bin, at dumping the leachate collecting pond of bottom and when the sequentially connected washing pool of flying dust collecting bin, drying box, reaction kettle, microwave treatment, solid-liquid separator and melting furnace, cooling bay;Heat exchanger is wherein connected on leachate collecting pond, heat exchanger is connect with drying box by pipeline;The bottom in leachate collecting pond is connected with filtrate tower, is connected with compressor on reaction kettle;Melting furnace is connect with drying box by pipeline, and drying box can be dried in the flue gas for melting generation, and adjuvant storehouse is connected on melting furnace.Processing system in the present invention has the advantages that collaboration processing flying ash and garbage leachate, high treating effect, at low cost.
Description
Technical field
The present invention relates to technical field of waste gas treatment, more specifically, it relates to which a kind of collaboration handles incineration of refuse flyash
With the processing system of garbage leachate.
Background technique
China's daily-life garbage without environmental pollution is disposed mainly by three kinds of modes: landfill, burning and compost.China's domestic rubbish disposal
Mainly based on landfill, burns and the ratio of compost is less, but the ratio burned all is increasing every year.It burns compared to landfill
Have many advantages, such as volume reduction, decrement etc., and the energy utilizes again.
Rubbish will carry out a certain amount of stacking storage and drying process before burning, therefore can generate a certain amount of garbage filter
Liquid.The typical feature of landfill leachate be BOD and COD concentration is high, heavy metal concentration is high, water quality and quantity variation greatly, ammonia nitrogen contains
Amount is high, microbial nutrition is out of proportion, and not only extremely stench is unpleasant, and index of correlation is 10-100 times of general municipal sewage.
In the prior art, application publication number is that the Chinese invention patent of CN107840550A discloses a kind of garbage leachate
Processing method, the treatment process of existing this garbage leachate is anti-using electrolysis processing, anoxic is successively carried out to Leachate site
Nitrification processing, short distance nitration processing and Anammox reaction, obtain the standard tertiary treatment liquid for meeting national sewage discharge, but
It is that its comprehensive performance is poor, can only individually handles Leachate site.
The flying dust of high-content dioxin and heavy metal can be settled in Refuse Incineration Process in exhaust gas purification equipment.According to
Clear stipulaties domestic garbage incineration flyash belongs to dangerous waste in " consumer waste filling and embedding contamination control standard GB16889-2008 "
Object, while filling requirement is domestic garbage incineration flyash moisture content efficiency less than 30%, dioxins concentration lower than 3ugTEQ/Kg and
The Leaching of heavy metal is lower than corresponding standard value.Once being accumulated into vivo in organism fat deposit and internal organs
And can hardly be discharged or degrade, the poisoning of building up property seriously affects the ecological environment of surrounding.
In the prior art, the Chinese invention patent file that application publication number is CN102173721A discloses a kind of rubbish and burns
The consolidation method of flying dust consolidating agent and incineration of refuse flyash is burnt, which has the excellent of the Leaching Heavy Metals in reduction flying dust
Point.But the performance of pitch can be reduced in actual use, it on the other hand still has a small amount of heavy metal and leaks, cause
Secondary pollution.
Several sides once are mainly manifested in obviously there is also some defects to the processing method of Leachate site and flying dust at present
Face: 1, concertedness is poor: the processing engineering of percolate and the processing engineering of flying dust are individually to complete in existing garbage burning factory;
2, processing cost is high: garbage leachate will be by the processing such as biodegrade, and processing cost is high, and flying dust, which mainly passes through, solidifies landfill
Mode takes up a large area, and processing cost is higher;3, treatment effect is low: Leachate site is difficult to control in denitrification, causes to seep
Drip that liquid treatment effect is bad, while the effect is relatively poor for flyash curing, and heavy metal in flying dust and dioxin are not detached from completely,
To landfill yard ambient enviroment potential risk.In the landfill disposal of long period, heavy metal and dioxin in flying dust are percolated again
Into environment, second of pollution is caused.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of collaboration processing incineration of refuse flyash and
The processing system of garbage leachate, with that can cooperate with, processing incineration of refuse flyash and Leachate site, processing cost are lower, handle
The good advantage of effect.
To achieve the above object, the present invention provides the following technical scheme that a kind of collaboration processing incineration of refuse flyash and rubbish
The processing system of rubbish Leachate site, including be connected with flue gas purifying equipment flying dust collecting bin, at dumping bottom infiltration
Drip liquid collecting pit, with the sequentially connected washing pool of flying dust collecting bin, drying box, reaction kettle, microwave treatment when, solid-liquid separator and
Melting furnace, cooling bay;
Heat exchanger is wherein connected on leachate collecting pond, heat exchanger is connect with drying box by pipeline;Leachate collecting
The bottom in pond is connected with filtrate tower, is connected with compressor on reaction kettle;
The bottom of filtrate tower is connect with reaction kettle by pipeline, and additive bin is connected on reaction kettle, is flown by what drying box was dried
Ash and filtrate tower filter Leachate site and additive bin in additive with mass ratio for 1:5-10:0.6-1.0 ratio anti-
Mixing in kettle is answered, reaction kettle is heated to 260-300 DEG C, and pressure is set as 10.5-20MPa, keeps the temperature 2.5-3 hours, passes through compression
Machine is passed through oxygen into reaction kettle, is separated later by solid-liquid separator to flying dust and Leachate site;
Melting furnace is connect with drying box by pipeline, and drying box can be dried in the flue gas for melting generation, is connected on melting furnace
It is connected to adjuvant storehouse;
Mixed melting is carried out according to the ratio that mass ratio is 1:5-10 to the adjuvant in flying dust and adjuvant storehouse by melting furnace,
Harmless slag is obtained, the melting flying dust that melting furnace generates enters cooling bay cooling and obtains harmless glass slag;Leachate site is carried out
It is discharged after adjusting pH and removing heavy metals ion.
By using above-mentioned technical proposal, due to being passed through in washing pool using using flying dust storehouse collection flying dust, then by flying dust
It is washed, the chlorine element and inorganic salts wash-off in flying dust is dissolved into water lotion, reduce corrosion of the villaumite to equipment, and
And inorganic salts are effectively recycled, flying dust is dried later, then by after drying flying dust and Leachate site introduce reaction
Harmless treatment is carried out in kettle, wherein the dielectric constant of water reduces when the temperature of reaction kettle is increased to 260-300 DEG C, is promoted
Make water be relatively easy to dissolve the organic contaminations such as dioxin, and be passed through oxygen in a kettle, can promote to form energy of oxidation
The very strong free radical of power improves reaction rate and oxidation efficiency, is that the chemical bond rupture of organic matter finally aoxidizes and forms titanium dioxide
Carbon and water, while the absorption and coagulation interaction of the metal ion and flying dust in flying dust, can be catalyzed dioxin in flying dust and
Organic matter in garbage leachate decomposes, and in flying dust after heavy metal ion hot water reaction, becomes ionic forms, consequently facilitating with adding
Add agent to be combined with each other, heavy metal is promoted to be detached from from flying dust;The preheating in garbage leachate is collected using heat exchanger simultaneously, is made
Drying box is dried with waste heat, improves the utilization rate of the energy.The exhaust gas generated in melting furnace simultaneously is passed through in drying box,
Also flying dust can be dried.
Further, the additive contains the following parts by weight: 1.4-1.8 parts of ferrous phosphates, 0.2-0.6 part three
Four sodium of iron chloride, 0.4-0.8 part iminodisuccinic acid, 1.2-1.7 parts of active carbons.
By using above-mentioned technical proposal, due to using ferrous phosphate to be capable of forming fine and close netted cement, realization pair
The package of flying dust, is passivated flying dust, and improves the intensity of flying dust and the ability of environment resistant erosion, four sodium of iminodisuccinic acid
It is very strong to the effect of the chelating of transition metal ions, especially heavy metal elements such as copper, iron, nickel, can in flying dust and Leachate site
Heavy metal ion chelating, while active carbon can adsorb peculiar smell.
Further, the adjuvant contains the following parts by weight: 0.8-1.6 parts of sulfuric acid, 0.2-0.6 parts of oxidations
Calcium, 2.1-3.1 part sodium metasilicate, TMT-15,1.3-1.6 parts of diatomite of 0.2-0.5 parts of organic sulfurs, 1.4-1.6 parts of cement.
It can be made with the heavy metal ion chelating in flying dust by using above-mentioned technical proposal using organic sulfur TMT-15
Heavy metal ion in flying dust is converted into the compound of indissoluble, keeps flying dust relatively stable, reduces the release of pollutant in flying dust, and
And calcium oxide is used, flyash curing is made by fine and close netted cement, realizes to the package action of flying dust, makes flying dust pollutant
Passivation, and can be improved the intensity of flying dust and the ability of environment resistant erosion, simultaneous oxidation calcium can be formed with the As in flying dust
Precipitating, is capable of forming hydrogel using sulfuric acid and sodium metasilicate, can be bonded solidification flying dust, carries out at solidification and stabilization to flying dust
Reason reduces the pollutant release in flying dust, enhances the ability of flying dust environment resistant corrosion, flying dust is avoided to generate secondary pollution, and
Increase the diatomite with porous structure, the peculiar smell and dioxin of flying dust can be adsorbed, achievees the effect that purify flying dust, while energy
Enough increase the intensity of flying dust, the hydrated product of cement can gap it is minimum, permeability is extremely low, can wrap up contaminant particle object
Wherein, and the mixed slurry alkalinity of flying dust and cement is stronger, and many heavy metal ion can be made to send out in the micropore of solidfied material
Raw double decomposition precipitation reaction forms the hydroxide precipitating of low solubility, prevents the leaching of heavy metal contaminants.
Further, coarse rack and the fine fack below coarse rack, the pitch of coarse rack are equipped in the filtrate tower
For 10-15mm, the pitch of fine fack is 1-3mm, is placed with filtrate on the coarse rack and fine fack.
By using above-mentioned technical proposal, when Leachate site enters in filtrate tower from the top of filtrate tower, coarse rack can
Biggish impurity and particulate matter in Leachate site are filtered out, it is lesser miscellaneous that the fine fack below coarse rack can filter out particle
Matter and particulate matter, the filtrate on coarse rack and fine fack can adsorb peculiar smell in Leachate site, heavy metal ion and organic
Pollutant.
Further, the filtrate contains the following parts by weight: 1.5-2.4 parts of active carbons, 0.8-1.3 portions of diatoms
Soil, 0.4-0.8 parts of kaolin, 1.2-1.5 parts of ion exchange resin, 3.5-4.1 parts of water of 0.3-0.6 parts of caraway powder, 0.6-0.9 parts
Bonding agent.
By using above-mentioned technical proposal, active carbon and diatomite have multiple-void structure, can adsorb in Leachate site
Peculiar smell and organic matter difficult to degrade, kaolin can adsorb the organic pollutant in Leachate site, and ion exchange resin can adsorb
The alkaline decomposition product of quasi- melanin and reduced sugar in Leachate site, so that Leachate site is made to decolourize, the ammonia in ion exchange resin
Base, hydroxyl isoreactivity group can carry out chelating, exchange reaction with heavy metal ion, thus remove heavy metal in Leachate site from
Son, caraway powder can absorb heavy metal ion in Leachate site, such as mercury, copper and arsenic etc..
Further, the treatment temperature of the microwave treatment room is 1500-2200 DEG C, and the processing time is 40-60min.
By using above-mentioned technical proposal, flying dust and Leachate site are handled in the way of microwave heating, speed is fast, energy consumption
Low, removing toxic substances is thorough, especially while incineration of refuse flyash and rubbish of the processing containing detection device for multi metallic elements such as copper, lead, zinc, chromium
Leachate site.
Further, the ratio of flying dust and water is 1Kg:(5-10 in the washing pool) L, washing time 15-20min,
Stirring rate is 200-300r/min.
By using above-mentioned technical proposal, flying dust is introduced into washing pool and is washed, washing can remove can in flying dust
Soluble and chloride ion reduce the concentration of soluble-salt, and then reduce the dissolution of heavy metal.
Further, there is with water quality than the heavy metal ion agent for capturing for 1:2.7-3.1 investment in the washing pool.
By using above-mentioned technical proposal, when flying dust, which enters, to be washed in washing pool, heavy metal in washing pool from
Chelating effect can occur with the heavy metal ion in flying dust for sub- agent for capturing, and heavy metal ion is made to be converted into the compound of indissoluble,
To be detached from from flying dust, the release of pollutant in flying dust is reduced.
Further, it is equipped with carbon dioxide in the washing pool and is bubbled machine, carbon dioxide and incineration of refuse flyash ratio are
1L/min:(1-10Kg)。
By using above-mentioned technical proposal, carbon dioxide gas is passed through into washing pool due to using carbon dioxide to be bubbled machine
Bubble, can promote the dissolution of heavy metal ion, improve the rate of recovery of heavy metal, and increase the purifying rate of flying dust.
Further, the melting furnace using plasma melting furnace, rotary kiln or molten mass.
In conclusion the invention has the following advantages:
The first, it since the present invention is due to carrying out the innoxious mixed processing of high temperature to flying dust and Leachate site using reaction kettle, can assist
It with processing incineration of refuse flyash and garbage leachate, and is passed through into reaction kettle and is passed through oxygen, can decompose in Leachate site
Organic matter, increases reaction rate, at the same the ingredient in flying dust can organic pollutant in catalytic degradation Leachate site, collaboration processing
The efficiency of incineration of refuse flyash and garbage leachate is more preferable, and treatment effect is more preferable.
The second, into reaction kettle, addition and flying ash and garbage leachate are in a certain proportion of additive in the present invention,
Wherein ferrous phosphate is capable of forming fine and close netted cement, realizes to the package of flying dust, is passivated flying dust, and improve flying dust
Intensity and environment resistant corrode ability, four sodium of iminodisuccinic acid can with transition metal ions carry out chelating, make seep drip
Heavy metal ion in liquid and flying dust is detached from.
The substances such as cement and organic sulfur TMT are added in adjuvant in third, the present invention, hydrolysis product of cement is laminar silicic acid
Salt, many heavy metal ion can replace calcium ion and aluminium ion in its lattice, thus be strongly bound, and cement
The hole of hydrated product is lower, can pollutant wrap up wherein, and organic sulfur TMT-15 also can chelating metal ion,
So that metal ion is converted to indissoluble object makes stabilizing fly ash.
It 4th, being capable of a huge sum of money in chelating flying dust by putting into heavy metal ion agent for capturing into washing pool in the present invention
Belong to ion, heavy metal ion is made to be converted into the compound of indissoluble, to be detached from flying dust, reduces the discharge of pollutant in flying dust.
5th, carbon dioxide is placed in the present invention in washing pool and is bubbled machine, the dissolution of heavy metal ion can be increased, mentioned
The recycling of high heavy metal ion improves clean-up effect.
Detailed description of the invention
Fig. 1 is the flow diagram of the collaboration processing of flying ash and garbage leachate provided by the invention.
Specific embodiment
Below in conjunction with drawings and examples, invention is further described in detail.
The preparation example 1-3 of additive
Preparation example 1: 1.4 kilograms of ferrous phosphates, 0.2 kilogram of ferric trichloride, 0.4 kilogram of four sodium of iminodisuccinic acid and 1.2 are taken
Kilogram active carbon is put into blender, is stirred evenly, is dissolved in carry out extruding pelletization in extruder later.
Preparation example 2: take 1.6 kilograms of ferrous phosphates, 0.4 kilogram of ferric trichloride, 0.6 kilogram of four sodium of iminodisuccinic acid and
1.5 kilograms of active carbons are put into blender, are stirred evenly, and dissolve in carry out extruding pelletization in extruder later.
Preparation example 3: take 1.8 kilograms of ferrous phosphates, 0.6 kilogram of ferric trichloride, 0.8 kilogram of four sodium of iminodisuccinic acid and
1.7 kilograms of active carbons are put into blender, are stirred evenly, and dissolve in carry out extruding pelletization in extruder later.
The preparation example 4-5 of filtrate
Preparation example 4: taking 1.5 kilograms of active carbons, 0.8 kilogram of diatomite and 0.4 kilogram of kaolin to be sufficiently stirred with blender, makes each
Kind of raw material is sufficiently mixed, and squeezes out the particle that partial size is 3mm with extruder, is poured into nodulizer, add 1.2 kilograms from
Sub-exchange resin, 0.3 kilogram of caraway powder, 3.5 kilograms of water and 0.6 kilogram of bonding agent are uniformly mixed, and generate the ball that sphere diameter is 5mm
Grain, natural curing 1 hour, is dried, steam curing later;Its ion exchange resin is Zhejiang Province Zhengguan Industry Co., Ltd
The D201 macroporous strong basic negative resin of preparation, bonding agent are that the C-440 type of federal Fine Chemical Co., Ltd's preparation in Guangdong is viscous
Connect agent.
Preparation example 5: taking 1.9 kilograms of active carbons, 1.1 kilograms of diatomite and 0.6 kilogram of kaolin to be sufficiently stirred with blender,
Various raw materials are sufficiently mixed, and squeeze out the particle that partial size is 4mm with extruder, is poured into nodulizer, adds 1.4 thousand
Grams of ion exchange resin, 0.5 kilogram of caraway powder, 3.8 kilograms of water and 0.7 kilogram of bonding agent are uniformly mixed, and generation sphere diameter is 6mm
Spherolite, natural curing 1.5 hours, dry later, steam curing, ion exchange resin is that the Zhejiang industry share that wins honour for has
The standby D201 macroporous strong basic negative resin of corporation is limited, bonding agent is the C- of federal Fine Chemical Co., Ltd's preparation in Guangdong
440 type bonding agents.
Preparation example 6: taking 2.4 kilograms of active carbons, 1.3 kilograms of diatomite and 0.8 kilogram of kaolin to be sufficiently stirred with blender,
Various raw materials are sufficiently mixed, and squeeze out the particle that partial size is 5mm with extruder, is poured into nodulizer, adds 1.5 thousand
Grams of ion exchange resin, 0.6 kilogram of caraway powder, 4.1 kilograms of water and 0.9 kilogram of bonding agent are uniformly mixed, and generation sphere diameter is 7mm
Spherolite, natural curing 2 hours, dry later, steam curing, ion exchange resin is that the Zhejiang industry share that wins honour for is limited
The standby D201 macroporous strong basic negative resin of corporation, bonding agent are the C-440 of federal Fine Chemical Co., Ltd's preparation in Guangdong
Type bonding agent.
Embodiment
Embodiment 1: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, referring to Fig. 1, including with
Flying dust collecting bin that garbage-incineration smoke purifying equipment is sequentially connected, washing pool, drying box, reaction kettle, microwave treatment room, solid-liquid
Separator, melting furnace and cooling bay, and be connected with the leachate collecting pond being connected at dumping, with leachate collecting pond
Heat exchanger and filtrate tower, heat exchanger are connect with drying box by pipeline, and filtrate tower is connected by pipeline with reaction kettle, are reacted
It is connected with additive bin and compressor on kettle, adjuvant storehouse is connected on melting furnace, Leachate site two is connected on solid-liquid separator
Grade processing pond.
It is concentrated in flying dust collecting bin by the flying dust that flue gas purifying equipment is collected, flying dust enters in washing pool through piping
It is washed, enters in drying box after washing and be dried using the waste heat of Leachate site, flying dust is filtered with through filter material tower later
Leachate site proportionally enter in reaction kettle, heated up and pressurizeed to reaction kettle, and into reaction kettle addition and flying dust
It is in a certain proportion of additive with Leachate site, mixing stirs evenly, and oxygen is passed through into reaction kettle using compressor, by paste after reaction
Object, which is introduced into microwave treatment room, carries out microwave treatment, then is separated by solid-liquid separation, and flying dust and adjuvant are carried out blended melting, are made
Slag, the exhaust gas that melting is generated are introduced in drying box by pipeline, and melting flying dust is passed through in cooling bay and is cooled down, is made
Glass slag.
Wherein the mass ratio of flying dust and water is 1Kg:5L, washing time 15min, stirring rate 200r/ in washing pool
Min, and have in washing pool with water quality than the heavy metal ion agent for capturing for 1:2.7, heavy metal ion agent for capturing is rich for Wuhan
The heavy metal ion agent for capturing of the model TMT-18F of Ren Di Science and Technology Ltd. production, washing pool is interior to be equipped with carbon dioxide drum
The ratio of bubble machine, carbon dioxide and flying ash is 1L/min:1Kg.
The mass ratio of flying dust, Leachate site and additive is 1:5:0.6 in reaction kettle, and reaction kettle is stainless steel material, and band
There is self- poking arrangement, reaction kettle is warming up to 260 DEG C, and the pressure that reaction kettle is arranged is 10.5MPa, and it is small to be stirred to react 2.5
When, the amount for being passed through oxygen is 1.3 times of original Leachate site COD value, is sent into microwave treatment room later, wherein additive is by preparing
Example 1 is prepared.
Microwave treatment temperature in microwave treatment room is 1500 DEG C, and the processing time is 40min.
Leachate site enters wherein from the top of filtrate tower, and coarse rack and the thin lattice below coarse rack are equipped in filtrate tower
Grid, the pitch of coarse rack are 10mm, and the pitch of fine fack is 1mm, are placed with filtrate on coarse rack and fine fack, filtrate can
Peculiar smell, organic pollutant and the heavy metal ion of Leachate site are adsorbed, wherein filtrate is prepared by preparation example 4.
By the flying dust after microwave treatment and after Leachate site separates with solid-liquid separator, pH value is adjusted to Leachate site, is gone
After the subsequent processings such as suspended particulate substance and heavy metal ion, discharged after reaching national wastewater discharge standard, it will be from separation of solid and liquid
After the flying dust and adjuvant separated in device is according to the ratio mixing of 1:1, melted, wherein the proportion of adjuvant is referring to table 1, table
" part " represents parts by weight in 1.
Melting furnace is plasma melting furnace, and the temperature of plasma melting furnace is 1800, and the type of cooling of cooling bay is
It is air-cooled.
Embodiment 2: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the area with embodiment 1
Be not, in washing pool the mass ratio of flying dust and water be 1Kg:8L, washing time 18min, stirring rate 250r/min, and
Have in washing pool with water quality than the heavy metal ion agent for capturing for 1:2.9, the interior carbon dioxide that is equipped with of washing pool is bubbled machine, dioxy
The ratio for changing carbon and flying ash is 1L/min:5Kg.
The mass ratio of flying dust, Leachate site and additive is 1:7.5:0.8 in reaction kettle, and reaction kettle is stainless steel material, and
With self- poking arrangement, reaction kettle is warming up to 280 DEG C, and the pressure that reaction kettle is arranged is 15.5MPa, is stirred to react 2.7
Hour, the amount for being passed through oxygen is 1.4 times of original Leachate site COD value, is sent into microwave treatment room later, wherein additive is by making
Standby example 2 is prepared.
Microwave treatment temperature in microwave treatment room is 1850 DEG C, and the processing time is 50min.
The pitch of coarse rack is 13mm, and the pitch of fine fack is 2mm, is placed with filtrate on coarse rack and fine fack, filters
Material is prepared by preparation example 5.
After the flying dust and adjuvant separated in solid-liquid separator is according to the ratio mixing of 1:1.3, melted, wherein assisting
The proportion of agent is referring to table 1, and " part " represents parts by weight in table 1.
Melting furnace is plasma melting furnace, and the temperature of plasma melting furnace is 2000, and the type of cooling of cooling bay is
Water cooling.
Embodiment 3: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the area with embodiment 1
Be not, in washing pool the mass ratio of flying dust and water be 1Kg:10L, washing time 20min, stirring rate 300r/min,
And have in washing pool with water quality than the heavy metal ion agent for capturing for 1:3.1, it is equipped with carbon dioxide in washing pool and is bubbled machine, two
The ratio of carbonoxide and flying ash is 1L/min:10Kg.
The mass ratio of flying dust, Leachate site and additive is 1:10:1.0 in reaction kettle, and reaction kettle is stainless steel material, and band
There is self- poking arrangement, reaction kettle is warming up to 300 DEG C, and the pressure that reaction kettle is arranged is 20MPa, is stirred to react 3 hours, is led to
The amount for entering oxygen is 1.5 times of original Leachate site COD value, is sent into microwave treatment room later, wherein additive is made by preparation example 3
It is standby to form.
Microwave treatment temperature in microwave treatment room is 2000 DEG C, and the processing time is 60min.
The pitch of coarse rack is 15mm, and the pitch of fine fack is 3mm, is placed with filtrate on coarse rack and fine fack, filters
Material is prepared by preparation example 6.
After the flying dust and adjuvant separated in solid-liquid separator is according to the ratio mixing of 1:1.5, melted, wherein assisting
The proportion of agent is referring to table 1, and " part " represents parts by weight in table 1.
Melting furnace is plasma melting furnace, and the temperature of plasma melting furnace is 2200, and the type of cooling of cooling bay is
Liquid nitrogen is cold.
Embodiment 4: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the area with embodiment 1
It is not, the corresponding parts by weight of component and each component contained by adjuvant are as shown in table 1, and cement is 32.5 grades of silicates in table 1
Cement.
Component contained by adjuvant and the corresponding parts by weight of each component in 1 embodiment 1-4 of table
Embodiment 5: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the difference with embodiment 1 exist
In the mass ratio of flying dust, Leachate site and additive is 1:6:0.7 in reaction kettle.
Embodiment 6: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the area with embodiment 1
It is not, the mass ratio of flying dust, Leachate site and additive is 1:9:0.9 in reaction kettle.
Comparative example
Comparative example 1: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the difference with embodiment 1 exist
In being not provided with additive bin on reaction kettle, do not launch additive into flying dust and Leachate site.
Comparative example 2: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the area with embodiment 1
It is not, does not include microwave treatment room, microwave treatment is not carried out to flying dust and Leachate site.
Comparative example 3: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the area with embodiment 1
It is not, flying dust does not add adjuvant in melting.
Comparative example 4: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the area with embodiment 1
It is not, filtrate used is the model CX-1 type filtrate of Guangzhou Chen Xing Environmental Protection Technology Co., Ltd preparation in filtrate tower.
Comparative example 5: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the area with embodiment 1
It is not, the mass ratio of flying dust, Leachate site and additive is 1:4:0.5 in reaction kettle.
Comparative example 6: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the area with embodiment 1
It is not, the mass ratio of flying dust, Leachate site and additive is 1:11:1.1 in reaction kettle.
Comparative example 7: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the area with embodiment 1
It is not, the mass ratio of flying dust and adjuvant is 1:0.8 in melting furnace.
Comparative example 8: a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, the area with embodiment 1
It is not, the mass ratio of flying dust and adjuvant is 1:1.7 in melting furnace.
Performance detection test
Waste gas from incinerator and flying dust are handled according to the processing system in embodiment 1-6 and comparative example 1-8, take phase homogenous quantities molten
Slag after melting, using scanning inductively coupled plasma atomic emission (ICP-AES) measurement slag in heavy metal type and
Quantity, according to a huge sum of money in the method detection slag in GB/T15555.1-15555.11 " solid waste Leaching measuring method "
The Steep cencentration of category, with the solid waste leaching in GB/T50568.3-2007 " hazardous waste judging standard leaching characteristic identification "
For toxic concentration limit value as standard, testing result is as shown in table 2 out.
Slag testing result in table 2 embodiment 1-6 and comparative example 1-8
According to Leaching of Heavy Metals liquid contained by slag made from processing system in embodiment 1-8 it can be seen from the data in table 2
Concentration is below the concentration limit in GB/T50568.3-2007 " hazardous waste judging standard leaching characteristic identification ", and according to right
In ratio 1 because there is no additive is used, and cause the Steep cencentration of each heavy metal species higher, more than GB/T50568.3-
Fixed concentration limit value in 2007, because not carrying out microwave treatment to flying dust and Leachate site in comparative example 2, therefore a huge sum of money in flying dust
Category content is higher, and Steep cencentration is higher, right without causing content of beary metal in flying dust higher using adjuvant in comparative example 3
Filtrate uses city's filtrate in ratio 4, does not have much affect to the heavy metal in flying dust, Leaching of Heavy Metals liquid concentration is in GB/
In limit value specified in T50568.3-2007, the content of Leachate site and additive is lower in comparative example 5, the infiltration drip in comparative example 6
The content of liquid and additive is higher, therefore the fly-ash heavy metal content in comparative example 5 and comparative example 6 is higher, assists in comparative example 7
Agent usage amount is less, and in comparative example 8, adjuvant usage amount is higher, because the fly-ash heavy metal in comparative example 7 and comparative example 8 contains
Amount is higher, and the concentration of Leaching of Heavy Metals liquid is greater than GB/T50568.3-2007 " hazardous waste judging standard leaching characteristic identification "
In concentration limit, thus illustrate to handle flying dust according to processing system in embodiment 1-6, can obtain harmless free of contamination molten
Slag.
Chinese sewage treatment project network planning determines existing and newly-built house refuse and fills up a Sewage Water Emissions concentration limitation
Middle regulation, the CODcr concentration of emission of Leachate site are limited to 100mg/L, and ammonia nitrogen concentration of emission is limited to 25mg/L, takes house refuse
Leachate site, according to the CODcr and NH of CJT428-2013 " Domestic Waste Leachate detection method " detection Leachate site3- N, according to
Processing system in embodiment 1-6 and comparative example 1-8 handles Leachate site, the Leachate site that takes that treated, detects CODcr again
And NH3- N, testing result are as shown in table 3.
The testing result for the Leachate site that table 3 is handled according to system in embodiment 1-6 and embodiment 1-8
It can be seen from data in table 3 according in embodiment 1-6 processing system handle Leachate site in CODcr and NH3- N's contains
Measure lower, and removal rate is higher, and additive is not used in comparative example 1, leads to the Leachate site CODcr and NH in comparative example 13-N
Content is higher, and in comparative example 2, microwave treatment flying dust and Leachate site are not used, CODcr and NH in Leachate site is caused3N content
It is higher, discharge standard is not met, adjuvant is not used to flying dust in comparative example 3, Leachate site is not influenced, in comparative example 5, is seeped
Liquid and additive are dripped for flying dust, content is higher, and after leading to leachate treatment, efficiency is poor, in Leachate site CODcr and
NH3N content is higher, and for flying dust, usage amount is larger for Leachate site and additive in comparative example 6, causes in Leachate site
CODcr and NH3The content of-N is higher, and the usage amount of adjuvant does not influence Leachate site in comparative example 7 and comparative example 8.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of processing system of collaboration processing incineration of refuse flyash and garbage leachate, which is characterized in that including net with flue gas
Change the connected flying dust collecting bin of equipment, at dumping the leachate collecting pond of bottom, be sequentially connected with flying dust collecting bin
Washing pool, drying box, reaction kettle, microwave treatment when, solid-liquid separator and melting furnace, cooling bay;
Heat exchanger is wherein connected on leachate collecting pond, heat exchanger is connect with drying box by pipeline;Leachate collecting
The bottom in pond is connected with filtrate tower, is connected with compressor on reaction kettle;
The bottom of filtrate tower is connect with reaction kettle by pipeline, and additive bin is connected on reaction kettle, is flown by what drying box was dried
Ash and filtrate tower filter Leachate site and additive bin in additive with mass ratio for 1:5-10:0.6-1.0 ratio anti-
Mixing in kettle is answered, reaction kettle is heated to 260-300 DEG C, and pressure is set as 10.5-20MPa, keeps the temperature 2.5-3 hours, passes through compression
Machine is passed through oxygen into reaction kettle, is separated later by solid-liquid separator to flying dust and Leachate site;
Melting furnace is connect with drying box by pipeline, and drying box can be dried in the flue gas for melting generation, is connected on melting furnace
It is connected to adjuvant storehouse;
It is molten that mixing is carried out according to the ratio that mass ratio is 1:1-1.5 to the adjuvant in flying dust and adjuvant storehouse by melting furnace
Melt, obtain harmless slag, the melting flying dust that melting furnace generates enters cooling bay cooling and obtains harmless glass slag;To Leachate site into
Row discharges after adjusting pH and removing heavy metals ion.
2. the processing system of collaboration processing incineration of refuse flyash and garbage leachate according to claim 1, feature exist
In the additive contains the following parts by weight: 1.4-1.8 parts of ferrous phosphates, 0.2-0.6 parts of ferric trichlorides, 0.4-0.8
Four sodium of part iminodisuccinic acid, 1.2-1.7 parts of active carbons.
3. the processing system of collaboration processing incineration of refuse flyash and garbage leachate according to claim 1, the auxiliary
Agent contains the following parts by weight: 0.8-1.6 parts of sulfuric acid, 0.2-0.6 parts of calcium oxide, 2.1-3.1 parts of sodium metasilicate, 0.2-0.5
TMT-15,1.3-1.6 parts of diatomite of part organic sulfur, 1.4-1.6 parts of cement.
4. the processing system of collaboration processing incineration of refuse flyash and garbage leachate according to claim 1, feature exist
In equipped with coarse rack and the fine fack below coarse rack in the filtrate tower, the pitch of coarse rack is 10-15mm, thin lattice
The pitch of grid is 1-3mm, is placed with filtrate on the coarse rack and fine fack.
5. the processing system of collaboration processing incineration of refuse flyash and garbage leachate according to claim 1, feature exist
In the filtrate contains the following parts by weight: 1.5-2.4 parts of active carbons, 0.8-1.3 parts of diatomite, 0.4-0.8 parts of kaolinites
Soil, 1.2-1.5 parts of ion exchange resin, 3.5-4.1 parts of water of 0.3-0.6 parts of caraway powder, 0.6-0.9 parts of bonding agents.
6. the processing system of collaboration the processing incineration of refuse flyash and garbage leachate stated according to claim 1, which is characterized in that
The treatment temperature of the microwave treatment room is 1500-2200 DEG C, and the processing time is 40-60min.
7. the processing system of collaboration processing incineration of refuse flyash and garbage leachate according to claim 1, feature exist
In the ratio of flying dust and water is 1Kg:(5-10 in the washing pool) L, washing time 15-20min, stirring rate 200-
300r/min。
8. the processing system of collaboration processing incineration of refuse flyash and garbage leachate according to claim 1, feature exist
In there is with water quality than the heavy metal ion agent for capturing for 1:2.7-3.1 investment in the washing pool.
9. the processing system of collaboration processing incineration of refuse flyash and garbage leachate according to claim 1, feature exist
In equipped with carbon dioxide bubbling machine in the washing pool, carbon dioxide and incineration of refuse flyash ratio are 1L/min:(1-
10Kg)。
10. the processing system of collaboration processing incineration of refuse flyash and garbage leachate according to claim 1, feature exist
In the melting furnace using plasma melting furnace, rotary kiln or molten mass.
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CN113251423A (en) * | 2021-05-10 | 2021-08-13 | 合肥工业大学 | Stabilization treatment system and treatment method for household garbage incineration ash |
CN113351612A (en) * | 2020-03-05 | 2021-09-07 | 北京中科国润环保科技有限公司 | System and method for treating fly ash by water washing and desalting combined with high-temperature melting |
CN113399431A (en) * | 2021-06-21 | 2021-09-17 | 康维杰 | Solid waste treatment method and treatment device |
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