CN116375452A - Sludge incineration ash and waste incineration fly ash synergetic detoxification and resource utilization method - Google Patents
Sludge incineration ash and waste incineration fly ash synergetic detoxification and resource utilization method Download PDFInfo
- Publication number
- CN116375452A CN116375452A CN202310325670.XA CN202310325670A CN116375452A CN 116375452 A CN116375452 A CN 116375452A CN 202310325670 A CN202310325670 A CN 202310325670A CN 116375452 A CN116375452 A CN 116375452A
- Authority
- CN
- China
- Prior art keywords
- ash
- fly ash
- detoxification
- sludge incineration
- molten
- 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
- 239000002956 ash Substances 0.000 title claims abstract description 84
- 239000010881 fly ash Substances 0.000 title claims abstract description 82
- 239000010802 sludge Substances 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000004056 waste incineration Methods 0.000 title claims abstract description 50
- 238000001784 detoxification Methods 0.000 title claims abstract description 49
- 230000002195 synergetic effect Effects 0.000 title claims abstract description 28
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000000654 additive Substances 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 238000004064 recycling Methods 0.000 claims abstract description 15
- 239000004566 building material Substances 0.000 claims abstract description 14
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 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 37
- 239000003456 ion exchange resin Substances 0.000 claims description 37
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 37
- 230000000996 additive effect Effects 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 17
- 239000010813 municipal solid waste Substances 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 239000002250 absorbent Substances 0.000 claims description 11
- 230000002745 absorbent Effects 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- 229910021645 metal ion Inorganic materials 0.000 claims description 8
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- 238000010345 tape casting Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- 229910021555 Chromium Chloride Inorganic materials 0.000 claims description 5
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims description 5
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 claims 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 claims description 5
- 235000002867 manganese chloride Nutrition 0.000 claims description 5
- 239000011565 manganese chloride Substances 0.000 claims description 5
- 229940099607 manganese chloride Drugs 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 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 4
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims description 4
- 150000001805 chlorine compounds Chemical class 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010433 feldspar Substances 0.000 claims description 4
- 229910003439 heavy metal oxide Inorganic materials 0.000 claims description 4
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 claims description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 4
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 235000005074 zinc chloride Nutrition 0.000 claims description 4
- 239000011592 zinc chloride Substances 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims description 2
- 239000011489 building insulation material Substances 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 238000009408 flooring Methods 0.000 claims description 2
- 229910000464 lead oxide Inorganic materials 0.000 claims description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 235000017550 sodium carbonate Nutrition 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 11
- 239000002910 solid waste Substances 0.000 abstract description 10
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000002920 hazardous waste Substances 0.000 abstract description 4
- 230000000295 complement effect Effects 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 44
- 239000012071 phase Substances 0.000 description 17
- 229910052751 metal Inorganic materials 0.000 description 15
- 239000002184 metal Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 13
- 238000005245 sintering Methods 0.000 description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- -1 manganese metals Chemical class 0.000 description 8
- 239000011701 zinc Substances 0.000 description 8
- 229910052725 zinc Inorganic materials 0.000 description 8
- 229910052804 chromium Inorganic materials 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 229910001510 metal chloride Inorganic materials 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 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
- 239000006227 byproduct Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 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
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910006069 SO3H Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229920001429 chelating resin Polymers 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007790 solid phase 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
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1355—Incineration residues
- C04B33/1357—Sewage sludge ash or slag
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1328—Waste materials; Refuse; Residues without additional clay
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/32—Burning methods
- C04B33/323—Burning methods involving melting, fusion or softening
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/02—Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash. The method comprises the following steps: (1) Mixing sludge incineration ash, waste incineration fly ash and additives to obtain a mixed material, and then carrying out detoxification reaction to obtain a gas-phase product and a molten-state product; (2) Absorbing the gas-phase product obtained in the step (1), and then sequentially concentrating, separating and recycling heavy metals; (3) And (3) sequentially molding and curing the molten product obtained in the step (1) to obtain a building material product. The method for the sludge incineration ash and the waste incineration fly ash through the synergistic detoxification and resource utilization has complementary advantages, realizes the synergistic resource utilization of ash solid waste and fly ash hazardous waste through the synergistic treatment of the multi-source solid waste, does not pollute the environment in the sludge incineration ash and the waste incineration fly ash detoxification and synergistic resource utilization processes, has good environmental protection and can bring considerable economic benefit.
Description
Technical Field
The invention belongs to the technical field of environmental engineering, relates to a treatment method of incineration residue, and in particular relates to a method for synergetic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash.
Background
Sludge is a derivative of municipal sewage treatment and usually contains pathogenic microorganisms, pathogens, heavy metals and a large number of refractory substances, and especially industrial sludge contains a large number of microorganisms, pathogens, medicaments, heavy metals and organic colorant pollutants, and if not properly treated, soil, water and atmosphere are seriously polluted, so that great risks are brought to public health and ecological environment. Harmless to the environment, ecology and human production and life for a long time is one of the basic principles of industrial sludge disposal.
The incineration technology is the most thorough and rapid industrial sludge disposal mode at present, can realize great volume reduction and decrement, and converts the sludge into stable inorganic ash. Meanwhile, the self heat value is converted into heat energy or electric energy for sludge drying or power generation. The toxic substances in the sludge can be thoroughly eliminated by high temperature combustion. Incineration ash is an unavoidable byproduct in the industrial sludge incineration process, and with the gradual popularization of the incineration technology, the yield of the incineration ash is expected to continuously increase. However, the subsequent safe disposal of ash at present restricts the application and popularization of the incineration technology.
In addition, in order to meet the urgent requirement of increasing household garbage disposal capacity at present, the incineration technology is greatly popularized due to the obvious advantages of volume reduction, weight reduction, heat recovery and the like. According to the development and planning of garbage classification and treatment facilities, the household garbage incineration treatment capacity is further improved, the urban household garbage incineration treatment capacity is estimated to be about 80 ten thousand tons/day at the end of 2025, and the urban household garbage incineration treatment capacity is further improved to about 65%. The waste incineration fly ash is an unavoidable byproduct in the waste incineration process, and with the gradual popularization of the incineration technology, the yield of the incineration fly ash is expected to continuously increase. The incineration fly ash is rich in a large amount of pollutants such as heavy metals, dioxins, furans and the like, has harm to the environment and belongs to dangerous wastes. The incineration fly ash has the characteristics of large quantity, serious hazard and the like, and how to safely dispose and comprehensively utilize the incineration fly ash becomes a new challenge for sustainable development of urban industry.
Ash and fly ash utilization disposal is divided into two modes, landfill and recycling, wherein landfill is a traditional method for fly ash disposal, and recycling is a new treatment mode developed in recent years. Before the fly ash is filled or recycled, the fly ash is subjected to proper pretreatment, and the prior pretreatment technology of the fly ash mainly comprises a cement solidification method, an extraction and separation method, high-temperature sintering, high-temperature melting and the like. The problems of high treatment cost and low recycling effect exist. In general, solidification/stabilization-landfill technology is currently most widely used in fly ash disposal. With increasing of the fly ash yield, land resources are increasingly in shortage, and how to select advanced and applicable innovative technology process, so as to meet the technical requirements of harmless, reduction, stabilization and recycling treatment and disposal, avoid secondary environmental pollution, and is in favor of the industry and the public.
CN 105565423a discloses a method for melting and treating waste incineration fly ash, which comprises the following steps: pretreating the waste incineration fly ash to form treated fly ash; uniformly mixing the treated fly ash with sludge to form a fly ash sludge mixture; solidifying and stabilizing the fly ash sludge mixture to form a solidified body; the solidified body is subjected to a melting treatment. The patent discloses only a treatment method of the waste incineration fly ash, and does not relate to sludge incineration ash.
The current research is mainly focused on the independent treatment of sludge incineration ash or waste incineration fly ash, and no report on a method for in-situ synergetic detoxification and resource utilization of the sludge incineration ash and the waste incineration fly ash is found yet.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a method for the coordinated detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which realizes the coordinated resource utilization of ash solid waste and fly ash hazardous waste by the coordinated treatment and the complementary advantages of multi-source solid waste, and the method does not pollute the environment in the detoxification and coordinated resource utilization processes of sludge incineration ash and waste incineration fly ash, has good environmental protection and can bring considerable economic benefit.
To achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which comprises the following steps:
(1) Mixing sludge incineration ash, waste incineration fly ash and additives to obtain a mixed material, and then carrying out detoxification reaction to obtain a gas-phase product and a molten-state product;
(2) Absorbing the gas phase product obtained in the step (1), and then sequentially concentrating, separating and recovering lead;
(3) Sequentially molding and curing the molten product obtained in the step (1) to obtain a building material product;
the step (2) and the step (3) are not distinguished in sequence.
The method provided by the invention mainly comprises two parts of synergetic detoxification and resource utilization. The invention fully utilizes the high chlorine-containing characteristic of the waste incineration fly ash, generates metal chloride with lower boiling point with the sludge incineration ash and heavy metal in the waste incineration fly ash at high temperature and volatilizes, thereby realizing the removal of heavy metal and chlorine, and thoroughly digesting dioxin at high temperature; and preparing the detoxified solid phase product into a high-value building material product. The invention can realize multiple detoxification of dioxin, cured heavy metal and the like through detoxification reaction. The gas phase product of the invention comprises lead, manganese, chromium, nickel, zinc and other metal oxides or chlorides.
The sludge incineration ash is derived from an ash bin arranged at the rear of the incinerator, contains a large amount of elements such as silicon, aluminum, calcium, iron and the like, and contains heavy metal elements such as zinc, chromium, manganese, nickel, lead and the like; the waste incineration fly ash is derived from the flue of a flue gas purification system of a waste incineration system and the bottom of a chimney, and contains elements such as calcium, sodium, potassium, chlorine, zinc, sulfur and the like.
As a preferable embodiment of the present invention, the sludge incineration ash in the step (1) is molten sludge incineration ash.
The temperature of the molten sludge incineration ash is preferably 1200 to 1600 ℃, and may be, for example, 1200 ℃, 1250 ℃, 1300 ℃, 1350 ℃, 1400 ℃, 1450 ℃, 1500 ℃, 1550 ℃ or 1600 ℃, but is not limited to the values listed, and other values not listed in the numerical range are equally applicable.
The invention adopts the fused sludge incineration ash slag to facilitate the reasonable utilization of energy, and mainly shows that: in the existing ash treatment method, high-temperature ash is required to be treated by cooling, the treatment cost is increased, energy is generated, the temperature is required to be increased to more than 1000 ℃ in the subsequent harmless treatment process, and a large amount of energy is required to be consumed. The invention directly utilizes the sludge ash slag in a high-temperature molten state, so that the cooling link can be reduced, the process of raising the temperature from normal temperature to high temperature in the ash slag harmless recycling process can be avoided, and the energy consumption can be greatly reduced.
In a preferred embodiment of the present invention, the amount of the waste incineration fly ash in the step (1) is 5 to 30wt% of the mixture, for example, 5wt%, 10wt%, 15wt%, 20wt%, 25wt% or 30wt%, but not limited to the recited values, and other values not recited in the numerical range are equally applicable.
Preferably, the additive in step (1) is added in an amount of 2-10 wt% of the mixture, for example, 2wt%, 3wt%, 4wt%, 5wt%, 6wt%, 7wt%, 8wt%, 9wt% or 10wt%, but is not limited to the recited values, and other non-recited values in the range of values are equally applicable.
Preferably, the additive of step (1) comprises any one or a combination of at least two of kaolin, feldspar, quartz tailings, soda, water glass, silica, alumina or aluminosilicate, typically but not limited to a combination of kaolin, feldspar and quartz tailings, a combination of water glass, silica, alumina and aluminosilicate, or a combination of kaolin, feldspar, quartz tailings, soda, water glass, silica, alumina and aluminosilicate.
The additive of the invention has the following functions: the material proportion is regulated and controlled, so that the effective sintering and melting of the sludge incineration ash and the garbage incineration fly ash are realized, the quality of a rear end product is ensured, the excessive addition of the material can lead to the reduction of the processing capacity of the two solid wastes, and the effective melting and sintering of the sludge incineration ash and the garbage incineration fly ash are not facilitated when the addition of the material is too low, so that the quality of the rear end product is influenced.
In a preferred embodiment of the present invention, the temperature of the detoxification reaction in the step (1) is 1200 to 1400 ℃, for example, 1200 ℃, 1250 ℃, 1300 ℃, 1350 ℃ or 1400 ℃, but the present invention is not limited to the values listed, and other values not listed in the numerical range are equally applicable.
Preferably, the detoxification reaction in step (1) takes 1 to 8 hours, for example, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 7 hours or 8 hours, but the present invention is not limited to the listed values, and other values not listed in the range of values are equally applicable.
The temperature of the detoxification reaction is 1200-1400 ℃, the energy consumption is greatly increased due to the excessively high temperature, and the effective melting and sintering of ash and fly ash are difficult to realize due to the excessively low temperature, so that the product quality is affected.
In addition, the initial temperature of the sludge incineration ash is about 1200-1600 ℃, the temperature can be reduced after the normal-temperature waste incineration fly ash is added, and the temperature is obviously reduced as the adding proportion is higher.
As a preferred embodiment of the present invention, the gas phase product of step (1) comprises heavy metal chlorides and heavy metal oxides.
Preferably, the heavy metal chloride comprises any one or a combination of at least two of lead chloride, chromium chloride, manganese chloride, nickel chloride or zinc chloride, typically but not limited to combinations comprising: a combination of lead chloride and manganese chloride, a combination of chromium chloride and nickel chloride, a combination of chromium chloride, manganese chloride and zinc chloride, or a combination of lead chloride, chromium chloride, manganese chloride, nickel chloride and zinc chloride.
Preferably, the heavy metal oxide comprises lead oxide and/or manganese dioxide.
As a preferred embodiment of the present invention, the absorption treatment in the step (2) includes absorbing the gas-phase product obtained in the step (1) with an absorbent to obtain a heavy metal solution.
Preferably, the absorbent comprises any one or a combination of at least two of water, sulfuric acid solution, nitric acid solution, hydrochloric acid solution, phosphoric acid solution, citric acid solution, or EDTA solution, typically, but not limited to, a combination comprising: a combination of sulfuric acid solution and nitric acid solution, a combination of sulfuric acid solution, nitric acid solution, hydrochloric acid solution and phosphoric acid solution, a combination of citric acid solution and EDTA solution, or a combination of sulfuric acid solution, nitric acid solution and hydrochloric acid solution.
The molar concentration of the absorbent is preferably 0 to 0.05mol/L, and may be, for example, 0mol/L, 0.1mol/L, 0.2mol/L, 0.3mol/L, 0.4mol/L, or 0.5mol/L, but the present invention is not limited to the values recited, and other values not recited in the numerical range are equally applicable.
The gas phase product in the step (1) is alkaline, and the heavy metal ions in the gas phase product can be absorbed by the neutral and/or acidic absorbent to obtain a solution containing the heavy metal ions.
When the molar concentration of the absorbent is 0-0.05 mol/L and the concentration is too high, the absorption effect can be realized by a certain body and the absorbent with lower concentration because the content of the volatilized metal chloride is less and the contact time is ensured in the absorption process; if the concentration is too high, not only the disposal cost but also the difficulty of subsequent separation and recovery are increased.
As a preferred technical scheme of the invention, the separation and recovery comprises metal ion separation by adopting ion exchange resin;
preferably, the ion exchange resin comprises any one or a combination of at least two of a strong acid ion exchange resin, a weak base ion exchange resin or a chelating ion exchange resin.
Illustratively, the strong acid ion exchange resin comprises an R-SO3H strong acid ion exchange resin series for separating and recovering zinc and lead;
the weak acid ion exchange resin comprises 724 weak acid ion exchange resin and the like, and is used for separating and recovering manganese;
the chelating ion exchange resin comprises a D412 chelating resin and other series, and is used for separating and recovering nickel and trivalent chromium;
the weakly basic ion exchange resins include secondary amine based NHR resins for the recovery of hexavalent chromium.
As a preferred embodiment of the present invention, the molding in step (3) includes casting molding or slip casting molding.
Preferably, the building material comprises any one or a combination of at least two of a building insulation material, a sponge urban water permeable brick, a porous inorganic adsorbent material, a diamond flooring brick or a cement-added aggregate, typically, but not limited to, a combination comprising: the building heat-insulating material and the porous inorganic adsorption material, or the building heat-insulating material, the porous inorganic adsorption material, the diamond floor tile and the cement added aggregate.
As a preferable technical scheme of the invention, the sludge incineration ash and the garbage incineration fly ash synergetic detoxification and resource utilization method provided by the invention comprises the following steps:
(1) Mixing molten sludge incineration ash, garbage incineration fly ash and additives to obtain a mixed material, and then carrying out detoxification reaction at 1200-1400 ℃ for 1-8 hours to obtain a gas phase product and a molten product;
wherein the temperature of the fused sludge incineration ash is 1200-1600 ℃; the addition amount of the waste incineration fly ash is 5-30wt% of the mixed material; the addition amount of the additive is 2-10wt% of the mixed material;
(2) Absorbing the gas phase product obtained in the step (1) by adopting an absorbent with the molar concentration of 0-0.05 mol/L to obtain a heavy metal solution, and then sequentially concentrating, separating and recycling heavy metals;
the separation and recovery comprises metal ion separation by adopting ion exchange resin;
(3) Sequentially carrying out tape casting and molding and maintenance on the molten product obtained in the step (1) to obtain a building material product;
the step (2) and the step (3) are not distinguished in sequence.
The numerical ranges recited herein include not only the above-listed point values, but also any point values between the above-listed numerical ranges that are not listed, and are limited in space and for the sake of brevity, the present invention is not intended to be exhaustive of the specific point values that the stated ranges include.
Compared with the prior art, the invention has the beneficial effects that:
(1) The detoxification method provided by the invention can thoroughly digest dioxin, fully utilizes the reaction of chlorine in the fly ash and heavy metal in ash to form heavy metal chloride to improve the volatility of the heavy metal, and realizes the digestion of dioxin in ash and fly ash solid waste and the removal of heavy metal and chlorine;
(2) According to the invention, through the synergistic treatment of the multi-source solid waste, the advantages are complementary, the synergistic recycling of the ash solid waste and the fly ash hazardous waste is realized, the detoxified molten slurry can be prepared into a green building material with high added value, and the volatilized heavy metal chlorides and oxides are collected and graded to extract noble metals, so that the environment and economic benefits are good;
(3) The method provided by the invention has the advantages that the sludge incineration ash and the garbage incineration fly ash do not pollute the environment in the process of detoxification and cooperative resource utilization, the environmental protection is good, and considerable economic benefits can be brought.
Detailed Description
The technical scheme of the invention is further described by the following specific embodiments. It will be apparent to those skilled in the art that the examples are merely to aid in understanding the invention and are not to be construed as a specific limitation thereof.
The raw material compositions of the sludge incineration ash and the refuse incineration fly ash in the following examples and comparative examples are shown in tables 1 and 2, respectively.
TABLE 1
TABLE 2
Example 1
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which comprises the following steps:
(1) Mixing molten sludge incineration ash, garbage incineration fly ash and additives to obtain a mixed material, and then carrying out detoxification reaction at 1300 ℃ for 5 hours to obtain a gas phase product and a molten product;
wherein the temperature of the molten sludge incineration ash is 1400 ℃; the addition amount of the waste incineration fly ash is 25wt% of the mixed material; the addition amount of the additive is 5.5wt% of the mixed material; the additive is kaolin;
(2) Absorbing the gas phase product obtained in the step (1) by adopting sulfuric acid solution with the molar concentration of 0.03mol/L to obtain heavy metal solution, and then sequentially concentrating, separating and recycling heavy metal;
the separation and recovery comprises metal ion separation by adopting ion exchange resin; recovering zinc and lead metals by adopting a strong acid ion exchange resin, recovering manganese metals by adopting a weak acid ion exchange resin, recovering metals by adopting a weak alkaline ion exchange resin, and recovering nickel and chromium metals by adopting a chelating ion exchange resin;
(3) Sequentially carrying out tape casting and molding and maintenance on the molten product obtained in the step (1) to obtain a building material product; the building product is a high-strength building ceramsite block;
the step (2) and the step (3) are not distinguished in sequence.
Example 2
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which comprises the following steps:
(1) Mixing molten sludge incineration ash, garbage incineration fly ash and additives to obtain a mixed material, and then carrying out detoxification reaction at 1200 ℃ for 8 hours to obtain a gas phase product and a molten product;
wherein the temperature of the molten sludge incineration ash is 1200 ℃; the addition amount of the waste incineration fly ash is 5wt% of the mixed material; the addition amount of the additive is 2wt% of the mixed material; the additive is quartz tailings;
(2) Absorbing the gas phase product obtained in the step (1) by water to obtain a heavy metal solution, and then sequentially concentrating, separating and recovering heavy metals;
the separation and recovery comprises metal ion separation by adopting ion exchange resin; recovering zinc and lead metals by adopting a strong acid ion exchange resin, recovering manganese metals by adopting a weak acid ion exchange resin, recovering hexavalent chromium by adopting a weak alkaline ion exchange resin, and recovering nickel metals and trivalent chromium by adopting a chelating ion exchange resin;
(3) Sequentially carrying out tape casting and molding and maintenance on the molten product obtained in the step (1) to obtain a building material product; the building product is a high-strength building ceramsite block;
the step (2) and the step (3) are not distinguished in sequence.
Example 3
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which comprises the following steps:
(1) Mixing molten sludge incineration ash, garbage incineration fly ash and additives to obtain a mixed material, and then carrying out detoxification reaction at 1400 ℃ for 1h to obtain a gas phase product and a molten product;
wherein the temperature of the molten sludge incineration ash is 1600 ℃; the addition amount of the waste incineration fly ash is 30wt% of the mixed material; the addition amount of the additive is 10wt% of the mixed material; the additive is water glass;
(2) Absorbing the gas phase product obtained in the step (1) by adopting a nitric acid solution with the molar concentration of 0.05mol/L to obtain a heavy metal solution, and then sequentially concentrating, separating and recycling heavy metals;
the separation and recovery comprises metal ion separation by adopting ion exchange resin; recovering zinc and lead metals by adopting a strong acid ion exchange resin, recovering manganese metals by adopting a weak acid ion exchange resin, recovering metals by adopting a weak alkaline ion exchange resin, and recovering nickel and chromium metals by adopting a chelating ion exchange resin;
(3) Sequentially carrying out tape casting and molding and maintenance on the molten product obtained in the step (1) to obtain a building material product; the building product is a high-strength building ceramsite block;
the step (2) and the step (3) are not distinguished in sequence.
Example 4
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which comprises the following steps:
(1) Mixing molten sludge incineration ash, garbage incineration fly ash and additives to obtain a mixed material, and then carrying out detoxification reaction for 5.5 hours at 1280 ℃ to obtain a gas phase product and a molten product;
wherein the temperature of the molten sludge incineration ash is 1500 ℃; the addition amount of the waste incineration fly ash is 20wt% of the mixed material; the addition amount of the additive is 8wt% of the mixed material; the additive is sodium carbonate;
(2) Absorbing the gas-phase product obtained in the step (1) by adopting EDTA solution with the molar concentration of 0.04mol/L to obtain heavy metal solution, and then sequentially concentrating, separating and recovering heavy metal;
the separation and recovery comprises metal ion separation by adopting ion exchange resin; recovering zinc and lead metals by adopting a strong acid ion exchange resin, recovering manganese metals by adopting a weak acid ion exchange resin, recovering metals by adopting a weak alkaline ion exchange resin, and recovering nickel and chromium metals by adopting a chelating ion exchange resin;
(3) Sequentially carrying out tape casting and molding and maintenance on the molten product obtained in the step (1) to obtain a building material product; the building product is a high-strength building ceramsite block;
the step (2) and the step (3) are not distinguished in sequence.
Example 5
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which is different from embodiment 1 only in that:
in this example, the temperature of the detoxification reaction in step (1) was changed to 1150 ℃.
Example 6
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which is different from embodiment 1 only in that:
in this example, the temperature of the detoxification reaction in step (1) was changed to 1450 ℃.
Example 7
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which is different from embodiment 1 only in that:
in this example, the temperature of the fused sludge incineration ash in the step (1) is changed to 1150 ℃.
Example 8
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which is different from embodiment 1 only in that:
in this example, the temperature of the molten sludge incineration ash in the step (1) was changed to 1650 ℃.
Example 9
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which is different from embodiment 1 only in that:
in the embodiment, the addition amount of the waste incineration fly ash in the step (1) is changed to 3 weight percent.
Example 10
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which is different from embodiment 1 only in that:
in the embodiment, the addition amount of the waste incineration fly ash in the step (1) is changed to 23 weight percent.
Example 11
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which is different from embodiment 1 only in that:
this example modifies the additive of step (1) to 1.2wt%.
Example 12
The embodiment provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which is different from embodiment 1 only in that:
this example changed the amount of additive described in step (1) to 12wt%.
Comparative example 1
The comparative example provides a method for the synergistic detoxification and resource utilization of sludge incineration ash and waste incineration fly ash, which is different from the method in the embodiment 1 only in that:
this comparative example changed the molten sludge incineration ash of step (1) to sludge incineration ash at normal temperature (25 ℃).
And (3) performance detection:
the construction products (high-strength construction ceramsite blocks) provided in examples 1 to 12 and comparative example 1 were subjected to density detection and compressive strength detection, and the results are shown in table 3.
TABLE 3 Table 3
As can be seen from table 3, the performances of building material produced pieces prepared from products obtained by recycling ash residues and fly ash by different methods are different, and analysis examples 1 and 5-6 show that the temperature of detoxification reaction affects the sintering effect of high-strength building ceramsite blocks and further affects the compressive strength; analysis examples 1 and 7-8 show that the temperature of the fused sludge incineration ash can influence the energy consumption and the sintering effect in the sintering process of the high-strength building ceramsite block so as to influence the compressive strength, but the influence degree is weaker than the influence of the detoxification reaction temperature; analysis examples 1 and 9-10 show that the addition amount of fly ash can influence the sintering effect of the strong building ceramsite block and further influence the compressive strength; analysis examples 1 and 11-12 show that the dosage of the additive amount can influence the sintering effect of the high-strength building ceramsite block and further influence the compressive strength; analysis example 1 and comparative example show that the effect of the high-strength building ceramsite block prepared by in-situ mixing and sintering of high-temperature sludge incineration ash is far better than that of the building block prepared by cooling to normal temperature and then increasing to the sintering temperature.
In summary, the sludge incineration ash and the waste incineration fly ash cooperate to detoxify and recycle the sludge incineration ash, and the method realizes the cooperative recycling of ash solid waste and flying ash hazardous waste by cooperatively disposing the multi-source solid waste and complementing the advantages, and the method does not pollute the environment in the sludge incineration ash and waste incineration fly ash detoxification and cooperative recycling process, has good environmental protection and can bring considerable economic benefit.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (10)
1. The method for the synergistic detoxification and resource utilization of the sludge incineration ash and the waste incineration fly ash is characterized by comprising the following steps:
(1) Mixing sludge incineration ash, waste incineration fly ash and additives to obtain a mixed material, and then carrying out detoxification reaction to obtain a gas-phase product and a molten-state product;
(2) Absorbing the gas-phase product obtained in the step (1), and then sequentially concentrating, separating and recycling heavy metals;
(3) Sequentially molding and curing the molten product obtained in the step (1) to obtain a building material product;
the step (2) and the step (3) are not distinguished in sequence.
2. The method of claim 1, wherein the sludge incineration ash of step (1) is molten sludge incineration ash;
preferably, the temperature of the molten sludge incineration ash is 1200-1600 ℃.
3. The method according to claim 1 or 2, wherein the amount of the waste incineration fly ash added in the step (1) is 5-30 wt% of the mixed material;
preferably, the additive in the step (1) is added in an amount of 2-10wt% of the mixed material;
preferably, the additive in step (1) comprises any one or a combination of at least two of kaolin, feldspar, quartz tailings, soda ash, water glass, silica, alumina or aluminosilicate.
4. A method according to any one of claims 1 to 3, wherein the detoxification reaction in step (1) is carried out at a temperature of 1200 to 1400 ℃;
preferably, the detoxification reaction in step (1) takes 1 to 8 hours.
5. The method of any one of claims 1-4, wherein the gas phase product of step (1) comprises heavy metal chlorides and heavy metal oxides;
preferably, the heavy metal chloride comprises any one or a combination of at least two of lead chloride, chromium chloride, manganese chloride, nickel chloride or zinc chloride;
preferably, the heavy metal oxide comprises lead oxide and/or manganese dioxide.
6. The method according to any one of claims 1 to 5, wherein the absorption treatment of step (2) comprises absorbing the gas phase product obtained in step (1) with an absorbent to obtain a heavy metal solution;
preferably, the absorbent comprises any one or a combination of at least two of water, sulfuric acid solution, nitric acid solution, hydrochloric acid solution, phosphoric acid solution, citric acid solution or EDTA solution;
preferably, the molar concentration of the absorbent is 0 to 0.05mol/L.
7. The method of claim 6, wherein the separating and recovering comprises metal ion separation using an ion exchange resin;
preferably, the ion exchange resin comprises any one or a combination of at least two of a strong acid ion exchange resin, a weak base ion exchange resin or a chelating ion exchange resin.
8. The method of any one of claims 1-7, wherein the forming of step (3) comprises casting or slip casting.
9. The method of any one of claims 1-8, wherein the building material comprises any one or a combination of at least two of a building insulation material, a sponge urban water permeable brick, a porous inorganic adsorbent material, a diamond flooring brick, or a cement-added aggregate.
10. The method according to any one of claims 1-9, characterized in that the method comprises the steps of:
(1) Mixing molten sludge incineration ash, garbage incineration fly ash and additives to obtain a mixed material, and then carrying out detoxification reaction at 1200-1400 ℃ for 1-8 hours to obtain a gas phase product and a molten product;
wherein the temperature of the fused sludge incineration ash is 1200-1600 ℃; the addition amount of the waste incineration fly ash is 5-30wt% of the mixed material; the addition amount of the additive is 2-10wt% of the mixed material;
(2) Absorbing the gas phase product obtained in the step (1) by adopting an absorbent with the molar concentration of 0-0.05 mol/L to obtain a heavy metal solution, and then sequentially concentrating, separating and recycling heavy metals;
the separation and recovery comprises metal ion separation by adopting ion exchange resin;
(3) Sequentially carrying out tape casting and molding and maintenance on the molten product obtained in the step (1) to obtain a building material product;
the step (2) and the step (3) are not distinguished in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310325670.XA CN116375452A (en) | 2023-03-30 | 2023-03-30 | Sludge incineration ash and waste incineration fly ash synergetic detoxification and resource utilization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310325670.XA CN116375452A (en) | 2023-03-30 | 2023-03-30 | Sludge incineration ash and waste incineration fly ash synergetic detoxification and resource utilization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116375452A true CN116375452A (en) | 2023-07-04 |
Family
ID=86970593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310325670.XA Pending CN116375452A (en) | 2023-03-30 | 2023-03-30 | Sludge incineration ash and waste incineration fly ash synergetic detoxification and resource utilization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116375452A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06144892A (en) * | 1992-11-06 | 1994-05-24 | Mino Shigen Kaihatsu:Kk | Method for converting molten slag into high-class resource and production of low-temperature ceramic sintered compact |
| JPH06227853A (en) * | 1993-02-02 | 1994-08-16 | Maruka Seito Kk | Body composition for ceramic |
| KR20110091168A (en) * | 2010-02-05 | 2011-08-11 | 한국지질자원연구원 | Calcium chloroaluminate mineral and method for preparing the same |
| CN105731849A (en) * | 2016-01-20 | 2016-07-06 | 上海煜工环保科技有限公司 | Environment-friendly regenerated glass sand preparation method and environment-friendly regenerated glass sand |
| CN106082646A (en) * | 2016-06-15 | 2016-11-09 | 上海大学 | Electroplating sludge and domestic garbage incineration flyash is utilized to work in coordination with the melted method preparing glass sand |
| CN112795776A (en) * | 2020-12-25 | 2021-05-14 | 湖南锐异资环科技有限公司 | Method for co-processing waste incineration fly ash and copper-containing sludge |
| CN113680795A (en) * | 2021-08-23 | 2021-11-23 | 中南大学 | Method for energy-efficient synergistic treatment of waste incineration fly ash and multi-source solid waste |
| CN114292124A (en) * | 2022-02-11 | 2022-04-08 | 中国科学院城市环境研究所 | Ceramsite fired by fly ash and preparation method and application thereof |
| CN115121590A (en) * | 2022-06-27 | 2022-09-30 | 重庆新离子环境科技有限公司 | High-temperature melting treatment method for household garbage incineration fly ash by cooperating with sludge and aluminum ash |
-
2023
- 2023-03-30 CN CN202310325670.XA patent/CN116375452A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06144892A (en) * | 1992-11-06 | 1994-05-24 | Mino Shigen Kaihatsu:Kk | Method for converting molten slag into high-class resource and production of low-temperature ceramic sintered compact |
| JPH06227853A (en) * | 1993-02-02 | 1994-08-16 | Maruka Seito Kk | Body composition for ceramic |
| KR20110091168A (en) * | 2010-02-05 | 2011-08-11 | 한국지질자원연구원 | Calcium chloroaluminate mineral and method for preparing the same |
| CN105731849A (en) * | 2016-01-20 | 2016-07-06 | 上海煜工环保科技有限公司 | Environment-friendly regenerated glass sand preparation method and environment-friendly regenerated glass sand |
| CN106082646A (en) * | 2016-06-15 | 2016-11-09 | 上海大学 | Electroplating sludge and domestic garbage incineration flyash is utilized to work in coordination with the melted method preparing glass sand |
| CN112795776A (en) * | 2020-12-25 | 2021-05-14 | 湖南锐异资环科技有限公司 | Method for co-processing waste incineration fly ash and copper-containing sludge |
| CN113680795A (en) * | 2021-08-23 | 2021-11-23 | 中南大学 | Method for energy-efficient synergistic treatment of waste incineration fly ash and multi-source solid waste |
| CN114292124A (en) * | 2022-02-11 | 2022-04-08 | 中国科学院城市环境研究所 | Ceramsite fired by fly ash and preparation method and application thereof |
| CN115121590A (en) * | 2022-06-27 | 2022-09-30 | 重庆新离子环境科技有限公司 | High-temperature melting treatment method for household garbage incineration fly ash by cooperating with sludge and aluminum ash |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11459272B2 (en) | Method for preparing iron alloy and cement material | |
| CN110723975B (en) | Hazardous waste incineration residue and solid waste co-processing method, ceramsite and application thereof | |
| CN102978659B (en) | A kind of Deep method of comprehensive utilization of electrolytic cell overhaul slag | |
| CN105712739B (en) | Magnetic biological ceramsite prepared from waste incineration fly ash and preparation method thereof | |
| CN114105610A (en) | Aluminum ash-based porous ceramic material and preparation method thereof | |
| CN102989744B (en) | Method for recycling mixed material dreg of overhauling groove slag of electrolytic cell | |
| CN111732353B (en) | Method for treating sand-based waste incineration fly ash by using cement kiln in cooperation | |
| CN107597817B (en) | Method for solidifying and stabilizing domestic garbage incineration fly ash by microorganisms | |
| CN112169246A (en) | Inorganic composite stabilizer for heavy metal in waste incineration fly ash and stabilizing and curing method thereof | |
| CN112979190B (en) | Method for catalytically treating waste incineration fly ash by utilizing electrolytic manganese residues | |
| CN112934912A (en) | Pretreatment method of waste incineration fly ash | |
| CN110698174A (en) | Lightweight sludge ceramsite, and preparation method and application thereof | |
| CN102657926B (en) | Heavy metal normal temperature curing agent and method for curing heavy metal in heavy metal pollutants by use of heavy metal normal temperature curing agent | |
| CN104492372A (en) | Preparation method and application of material for adsorbing heavy metals in wastewater | |
| CN111777344B (en) | Method for treating waste incineration fly ash as admixture by cooperation of cement kiln | |
| CN114180865B (en) | Method for resource utilization of municipal refuse incineration fly ash | |
| CN114804668A (en) | Preparation method of activated carbon-fixing material for producing recycled aggregate | |
| CN115532785A (en) | Disposal system and method for thermal decomposition and collaborative mineralization of fly ash dioxin | |
| CN110586616A (en) | Efficient inhibition method for dioxin regeneration in fly ash high-temperature thermal treatment process | |
| CN102992298A (en) | Method for recycling overhauling slag waste cathode carbon blocks of electrolytic bath | |
| CN1556349A (en) | Domestic garbage treatment and cement rotary kiln combined production technology | |
| CN111454008A (en) | Zero-landfill technical method for waste incineration fly ash | |
| CN103028592B (en) | A kind of circulation utilization method of electrolytic cell overhaul slag recovery water | |
| CN107200488B (en) | Method for producing fluoroaluminate cement by using carbon waste of aluminum electrolytic cell in dry-process rotary kiln plant | |
| CN116375452A (en) | Sludge incineration ash and waste incineration fly ash synergetic detoxification and resource utilization method |
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 |