CN113443843B - Composite gelling agent for arsenic-containing waste residue detoxification and preparation method and application thereof - Google Patents
Composite gelling agent for arsenic-containing waste residue detoxification and preparation method and application thereof Download PDFInfo
- Publication number
- CN113443843B CN113443843B CN202110640289.3A CN202110640289A CN113443843B CN 113443843 B CN113443843 B CN 113443843B CN 202110640289 A CN202110640289 A CN 202110640289A CN 113443843 B CN113443843 B CN 113443843B
- Authority
- CN
- China
- Prior art keywords
- arsenic
- gelling agent
- containing waste
- waste residue
- detoxification
- 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.)
- Active
Links
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 107
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title claims abstract description 107
- 239000002131 composite material Substances 0.000 title claims abstract description 55
- 239000003349 gelling agent Substances 0.000 title claims abstract description 54
- 239000002699 waste material Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000001784 detoxification Methods 0.000 title claims description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000002386 leaching Methods 0.000 claims abstract description 33
- 238000000498 ball milling Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 25
- 229910052742 iron Inorganic materials 0.000 claims abstract description 20
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010703 silicon Substances 0.000 claims abstract description 16
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 16
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 15
- 239000011572 manganese Substances 0.000 claims abstract description 15
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000011575 calcium Substances 0.000 claims abstract description 14
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 44
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- 230000001988 toxicity Effects 0.000 claims description 31
- 231100000419 toxicity Toxicity 0.000 claims description 31
- 239000002002 slurry Substances 0.000 claims description 19
- 239000011259 mixed solution Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 12
- 239000002440 industrial waste Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 10
- 238000007873 sieving Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012071 phase Substances 0.000 claims description 4
- 239000007790 solid phase Substances 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000002893 slag Substances 0.000 abstract description 36
- 230000000694 effects Effects 0.000 abstract description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 14
- 239000004568 cement Substances 0.000 abstract description 5
- 239000002920 hazardous waste Substances 0.000 abstract description 5
- 150000004645 aluminates Chemical class 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 229910000519 Ferrosilicon Inorganic materials 0.000 abstract 1
- 229910021645 metal ion Inorganic materials 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 14
- 239000011707 mineral Substances 0.000 description 14
- 235000010755 mineral Nutrition 0.000 description 14
- 238000001179 sorption measurement Methods 0.000 description 11
- 239000003513 alkali Substances 0.000 description 9
- GSYZQGSEKUWOHL-UHFFFAOYSA-N arsenic calcium Chemical group [Ca].[As] GSYZQGSEKUWOHL-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 239000010802 sludge Substances 0.000 description 6
- VETKVGYBAMGARK-UHFFFAOYSA-N arsanylidyneiron Chemical group [As]#[Fe] VETKVGYBAMGARK-UHFFFAOYSA-N 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000010881 fly ash Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 238000004537 pulping Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XPDICGYEJXYUDW-UHFFFAOYSA-N tetraarsenic tetrasulfide Chemical group S1[As]2S[As]3[As]1S[As]2S3 XPDICGYEJXYUDW-UHFFFAOYSA-N 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- JFMOYHBEGWPXBI-UHFFFAOYSA-N [C].[As] Chemical compound [C].[As] JFMOYHBEGWPXBI-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229940037003 alum Drugs 0.000 description 2
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910021487 silica fume Inorganic materials 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
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000008316 Arsenic Poisoning Diseases 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- ULGYAEQHFNJYML-UHFFFAOYSA-N [AlH3].[Ca] Chemical compound [AlH3].[Ca] ULGYAEQHFNJYML-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910001586 aluminite Inorganic materials 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- MJLGNAGLHAQFHV-UHFFFAOYSA-N arsenopyrite Chemical compound [S-2].[Fe+3].[As-] MJLGNAGLHAQFHV-UHFFFAOYSA-N 0.000 description 1
- 229910052964 arsenopyrite Inorganic materials 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- -1 iron-aluminum-vanadium Chemical compound 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- 229910052958 orpiment Inorganic materials 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910052957 realgar Inorganic materials 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000009870 specific binding Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910001784 vanadium mineral Inorganic materials 0.000 description 1
Images
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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B1/00—Dumping solid waste
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a composite gelling agent for detoxifying arsenic-containing waste residues, and a preparation method and application thereof. The composite gelling agent is prepared from leaching slag rich in elements such as silicon, iron, calcium, aluminum, manganese and the like through alkaline hydrothermal, roasting and ball milling processes, can provide alkaline metal ions combined with arsenic, provide groups coordinated and adsorbed with the arsenic, and can generate ferrosilicon aluminate hydrate with high strength and low permeability to provide microcosmic wrapping so as to reduce the mobility of the arsenic and further achieve the aim of gelling and detoxifying the arsenic-containing waste slag. The composite gelling agent disclosed by the invention is wide in raw material preparation, simple in process, low in cost and short in period, has a stable treatment effect and a small volume ratio compared with the traditional cement curing, is easy to industrially apply, and can be safely buried and disposed, and all indexes of arsenic-containing waste residues after treatment can stably meet the limit requirements specified in hazardous waste landfill pollution control standards (GB 18598-2019).
Description
Technical Field
The invention belongs to the field of stabilizing treatment of arsenic-containing waste residues, and particularly relates to a composite gelling agent for detoxifying arsenic-containing waste residues, and a preparation method and application thereof.
Background
Arsenic is widely distributed in nature, mainly exists in the form of sulfide ore, such as orpiment, realgar, arsenopyrite and the like, is mainly used in pesticides, herbicides, insecticides and a plurality of alloys, but arsenide is a substance with strong toxicity, and arsenic poisoning can cause various pathological changes and even canceration. In the production process of non-ferrous smelting industry and chemical industry involving arsenic, arsenic-containing waste residues with different properties can be generated, such as arsenic sulfide residues generated by sulfurization of contaminated acid, calcium arsenic residues and iron arsenic residues generated by a lime-ferric salt method, arsenic-alkali residues generated by refining of crude antimony and the like, if the arsenic is not effectively treated and leached by rainwater in the nature, the arsenic is continuously dissolved out and permeates into peripheral soil and water, and the serious arsenic pollution problem can be caused.
The research on the arsenic-containing waste residue safety disposal technology reports that cement is used as a curing agent, sodium sulfide is used as a stabilizing agent to prepare a cured body, arsenic-containing neutralized slag with the arsenic content of less than 1.5% is treated, the arsenic leaching toxicity of the treated arsenic slag is 3 mg/L-4 mg/L, the limit value of hazardous waste landfill pollution control standard is not reached, and safe landfill disposal cannot be carried out;
CN108188145A discloses a stabilization method of arsenic-containing waste residue, which adopts water-soluble silicate and aluminum salt to carry out double decomposition reaction to wrap the arsenic-containing waste residue, so that the arsenic-containing waste residue is isolated from the external environment, and the stability of the arsenic-containing waste residue is further improved, but the method requires that the pH value of the micro-wrapped arsenic-containing waste residue is strictly controlled at 2-5, so that safe landfill disposal cannot be carried out;
CN106583422A discloses a preparation method of a novel biomass carbon arsenic stabilizer and a process for curing high-salt arsenic slag, the method cures arsenic in the arsenic slag through the cooperation of a self-made novel biomass carbon arsenic stabilizer, but the process is complex, and strict temperature control and electric field addition are required, so that industrial application is difficult to realize;
CN106362347A discloses a method for treating high-concentration arsenic slag, which adopts magnesium oxide, magnesium hydroxide, ferric sulfate and ferric oxide as stabilizers, lime for adjusting pH, cement as a curing agent, and arsenic leaching toxicity after treatment is lower than 2.5 mg/L, but the pH is not less than 13, secondary pollution is easy to cause under strong alkali condition, safe landfill disposal cannot be carried out, and the treatment period is longer.
2013 CN 103449790A discloses a harmless treatment method of waste acid sludge, which provides a cement-like solidified body prepared by mixing a mixture consisting of portland cement, fly ash, slag and river sand with the waste acid sludge, triethanolamine is used as an additive, the mixing amount of the mixture is about 100 percent, and the compatibilization ratio is high;
2014.12 CN 104230242A discloses a method for preparing harmless curing brick of high arsenic sludge, which proposes that organic sulfur macromolecular compound, organic amine macromolecular compound and the like are used as arsenic chelating agent, finished silicate, aluminate and epoxy resin cementing material are used as cementing material, finished sulfate, fluorite mineral, sepiolite mineral and the like are used as curing excitant, and the curing agent is mixed with the high arsenic sludge to prepare a curing body, the compatibilization ratio is more than 1, the curing condition is rigorous and the period is long.
2016.4 CN 105499250A discloses a stabilizing treatment method for arsenic sulfide removal slag, which comprises the steps of mixing cement clinker, slag and copper slag to serve as an autonomous cementing material, using calcium chloride or sodium chloride as an additive, using carbide slag as a pretreatment agent to provide calcium ions to be combined with arsenic to prepare an arsenic sulfide slag solidified body, and obtaining the solidified body with higher strength by adopting autoclave curing, wherein the arsenic leaching toxicity meets GB5085.3-2007, namely the arsenic leaching toxicity is lower than 5 mg/L.
CN 106966620A discloses a coal gangue bottom slag and fly ash compound cementing material and a preparation method thereof, and proposes that a mixed material of coal gangue bottom slag, fly ash, quicklime and gypsum is ground to obtain the compound cementing material, and the cementing property reaches the national PC 32.5 standard.
CN 110746168A discloses a method for solidifying arsenic-containing sludge by steel slag and silica fume cementing material, which comprises the steps of mixing steel slag, silica fume and arsenic-containing sludge, using sodium silicate and sodium hydroxide as alkali activators, performing compression molding, and curing for 28d to obtain solidified blocks, thereby realizing the purpose of treating wastes with wastes, but the material mixing amount is too large, the volume-increasing ratio is greatly increased, and the curing period is too long.
Disclosure of Invention
The invention provides a composite gelling agent for detoxifying arsenic-containing waste residues, a preparation method and application thereof, aiming at arsenic-containing waste residues with low arsenic leaching toxicity, the prepared composite gelling agent is applied to gelling and detoxifying, and the detoxification method has the advantages of simple process, short treatment period, stable effect and small compatibilization ratio. After the arsenic-containing waste residue is subjected to gelling and detoxifying treatment, each index can stably meet the limit requirement specified in hazardous waste landfill pollution control Standard (GB 18598-2019), and safe landfill disposal can be performed.
The invention adopts the following technical scheme to achieve the aim,
the invention relates to a preparation method of a composite gelling agent for detoxification of arsenic-containing waste residues, which comprises the following steps:
adding industrial waste residue into water to obtain slurry, then adding diatomite and sodium hydroxide into the slurry to obtain a mixed solution, carrying out hydrothermal reaction at 150-200 ℃, carrying out solid-liquid separation, roasting the obtained solid phase at 150-200 ℃, carrying out ball milling, and sieving to obtain a composite gelling agent;
in the mixed solution, the molar ratio of silicon: (iron + calcium + aluminum) = 1.5-3.5.
The method takes industrial waste residue rich in silicon, calcium, iron and aluminum as a raw material, and obtains a multi-component mineral system with efficient detoxification and gelling activity through component regulation, hydrothermal alkali excitation, roasting to remove crystallization water and ball milling activation treatment. According to the invention, by adopting reasonable component proportion of silicon iron, calcium aluminum and the like, a multi-component mineral system, namely a composite gelling agent precursor, of silicon, iron and aluminate with high hydrated gelling activity, ferroalumite minerals with strong adsorption characteristic, metal oxides specifically combined with arsenic and the like is generated through hydrothermal alkali excitation treatment, part of crystal water in the minerals is removed through roasting, the specific surface area of the minerals is improved through ball milling, the hydrated gelling activity of the minerals is further improved, and the composite gelling agent is finally prepared. The medicament can generate high-efficiency specific binding with free arsenic in the arsenic-containing waste residue, generate strong physical and coordination adsorption, and form a compact coating structure in a short time so as to reduce the mobility of the arsenic, thereby achieving the aim of detoxifying the arsenic-containing waste residue.
In the invention, the molar ratio in the mixed solution needs to be well controlled, if the molar ratio is unreasonable, the obtained multi-component minerals such as silicon, iron, aluminate, iron aluminite, metal oxide and the like, namely the composite gelling agent precursor, are treated by a hydrothermal process, the adsorption and hydration gelling activities of the multi-component minerals cannot be sufficiently excited, and the gelling and detoxifying effects of the composite gelling agent are influenced.
Meanwhile, in the preparation process of the composite gelling agent, both the reaction temperature of the hydrothermal reaction and the roasting temperature need to be effectively controlled, and if the hydrothermal reaction temperature is too low, the alkali excitation efficiency is affected, the reaction is not thorough, and the hydrothermal reaction temperature is too high, the iron-aluminum-vanadium mineral loses the adsorption activity due to alkali corrosion. When the roasting temperature is too low, mineral crystal water is difficult to remove completely, the hydration activity is inhibited, and when the roasting temperature is too high, the bauxite mineral is easy to generate thermal phase change transformation and lose the adsorption activity.
In addition, the inventor finds that ball milling is required after solid-phase roasting, even if no agglomeration occurs after solid-phase sintering, the ball milling is required, and the ball milling can further activate the roasted product, so that the adsorption effect is improved.
In a preferred scheme, the industrial waste residue comprises the following main components in percentage by mass: 10-30 wt% of silicon, 5-15 wt% of iron, 5-25 wt% of calcium, 5-15 wt% of aluminum and 2-10 wt% of manganese.
In the invention, the industrial waste residue contains iron alumite phase which is leached slag containing elements such as silicon, iron, calcium, aluminum, manganese and the like, including but not limited to manganese slag.
In the preferable scheme, the solid content of the industrial waste residue in the slurry is 20-30 wt%.
In a preferable scheme, the concentration of the sodium hydroxide in the mixed solution is 20-30 wt%.
In a preferred scheme, the time of the hydrothermal reaction is 180-300 min.
In a preferable scheme, the roasting time is 240-360 min.
In a preferred scheme, the ball-milling ball material ratio is 2-10: 1, the ball milling rotating speed is 80-200 rpm, the ball milling time is less than or equal to 15min, and preferably 5-15 min.
In the invention, after roasting is finished, the obtained product needs to be subjected to ball milling and further activated by ball milling, the ball milling time needs to be effectively controlled, and the ball milling time is too long, so that the activity of the obtained product is reduced.
In the preferred scheme, the number of the sieved meshes is 200-300 meshes, and undersize products are taken after sieving.
The invention also provides the composite gelling agent for detoxifying the arsenic-containing waste residue prepared by the preparation method.
The invention also provides the application of the composite gelling agent for detoxifying the arsenic-containing waste residue prepared by the preparation method, and the composite gelling agent is used for coagulating and detoxifying the arsenic-containing waste residue; the treatment process of the gelling detoxification comprises the following steps: grinding, sieving and mixing the arsenic-containing waste residues to obtain slurry, adjusting the pH value to 6-12, adding a composite gelling agent, reacting under stirring, and naturally curing to obtain the gelled detoxification material.
In the preferable scheme, the arsenic content in the arsenic-containing waste residue is 1-25 wt%, and the arsenic leaching toxicity is less than or equal to 100 mg/L.
The arsenic-containing waste residue in the invention includes but is not limited to calcium arsenic residue and iron arsenic residue.
In a preferable scheme, the solid content of the slurry is 20-50 wt%.
In a preferable scheme, the mass ratio of the composite gelling agent to the arsenic-containing waste residue is 0.05-0.30: 1.
in the preferable scheme, the reaction time is 5 min-30 min, and the natural curing time is more than or equal to 18 h.
In the actual operation process, the gelled detoxification material can be pressed or injection molded before natural curing to obtain a cured body, and the compressive strength of the gelled detoxification material obtained after room-temperature curing is 1-10 MPa.
Compared with the prior art, the invention has the following characteristics:
(1) the invention has remarkable effect on arsenic-containing waste residues with arsenic content of 1-25 wt% and arsenic leaching toxicity less than or equal to 100 mg/L.
(2) The composite gelling agent is prepared by component regulation, hydrothermal alkali excitation, roasting to remove crystal water and ball milling, is rich in iron-containing aluminosilicate, iron-aluminoferrite and metal oxide, has greatly improved specific surface area and gelling activity, can be combined with arsenic more efficiently to form physical and coordination adsorption, and forms microscopic tight package in a short time so as to reduce the mobility of arsenic, thereby achieving the aim of detoxification.
(3) The method has the advantages of simple process, low treatment cost, short period, stable effect and small capacity-increasing ratio, various indexes of the arsenic-containing waste residue after treatment can stably reach the limit value requirements specified in hazardous waste landfill pollution control standard, the arsenic-containing waste residue can be directly filled into a flexible landfill site for safe landfill, and simultaneously can be pressed or molded by injection, a solidified block with higher strength can be obtained in a short time, the transportation, temporary storage or landfill are convenient, the industrial application and popularization are easy, and compared with the traditional cement solidification and the traditional slag gelatinization solidification, the method has obvious economic benefit and environmental benefit.
Drawings
FIG. 1 is a flow chart of the arsenic-containing waste residue gelling and detoxifying treatment method of the present invention.
FIG. 2 is an SEM photograph of composite gellant prepared in example 1.
FIG. 3 is an SEM photograph of the gel of example 1 after curing.
FIG. 4 is the XRD pattern of the gelled detoxification materials of example 1 after curing.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific embodiments. The following examples are merely illustrative and explanatory of the present invention and should not be construed as limiting the scope of the invention. All the technologies realized based on the above-mentioned contents of the present invention are covered in the protection scope of the present invention.
Example 1
Preparing a composite gelling agent:
the industrial waste residue used in the present embodiment is manganese residue generated from a certain electrolytic plant a, and comprises the following components by dry weight: 20.9wt% of silicon, 7.5wt% of iron, 5.6wt% of calcium, 8.3wt% of aluminum and 4.3wt% of manganese.
Adding water into manganese slag to prepare slurry, controlling the solid content of the manganese slag in the slurry to be 25wt%, then adding diatomite and sodium hydroxide into the slurry to obtain mixed solution, wherein the molar ratio of silicon to (iron + calcium + aluminum) in the mixed solution is 2.0, the concentration of the sodium hydroxide in the mixed solution is 24wt%, then carrying out hydrothermal reaction at 180 ℃ for 240min, filtering, roasting the obtained filter material at 180 ℃ for 300min, and carrying out ball milling on the roasted material, wherein the ball material ratio is 5: 1, rotating speed of 120rpm, ball milling time of 10min, then sieving with a 250-mesh sieve, and taking undersize products to obtain the composite gelling agent.
Detoxification treatment of arsenic-containing waste residues:
1. the treated arsenic-containing waste residue is calcium arsenic residue, the arsenic content is 8wt%, the arsenic leaching toxicity is 35mg/L, the pH value is 12.6, and the water content is 52%.
2. Weighing 500g of calcium-arsenic slag, putting the calcium-arsenic slag into a high-efficiency stirring container, adding water, stirring and pulping, adjusting the solid content to be 40wt%, and adjusting the pH value of the pulp to be 11.5 by using concentrated sulfuric acid.
3. Adding 50g of composite gelling agent, stirring and reacting for 10min to obtain a gelling detoxification material, dividing the gelling detoxification material into five parts, respectively maintaining the materials indoors for 1d, 3d, 15d, 60d and 360d, and then performing leaching toxicity and corrosivity analysis, wherein the detection results are shown in table 1.
Table 1 example 1 gel detoxification test results
The result shows that the composite gelling agent obtained in the embodiment 1 can effectively ensure that the leaching toxicity of the gelled detoxification material arsenic is less than or equal to 1mg/L, the corrosivity meets the requirement that the pH value is within the range of 7-12, and the leaching toxicity is not obviously changed along with the prolonging of time, which indicates that the long-term stability of the gelled detoxification material is better.
Example 2
Preparing a composite gelling agent:
the industrial waste residue used in the embodiment is manganese residue generated by a certain electrolysis plant B, and comprises the following components: 22.1wt% of silicon, 9.5wt% of iron, 5.6wt% of calcium, 6.3wt% of aluminum and 3.2wt% of manganese.
Adding water into manganese slag to prepare slurry, controlling the solid content of the manganese slag in the slurry to be 28wt%, then adding diatomite and sodium hydroxide into the slurry to obtain mixed solution, wherein the molar ratio of silicon to (iron + calcium + aluminum) in the mixed solution is 3.2, the concentration of the sodium hydroxide in the mixed solution is 27wt%, then carrying out hydrothermal reaction at 200 ℃ for 300min, filtering, roasting the obtained filter material at 200 ℃ for 360 min, and carrying out ball milling on the roasted material, wherein the ball-material ratio is 10: 1, rotating speed of 200rpm, ball milling time of 15min, then sieving with a 300-mesh sieve, and taking undersize products to obtain the composite gelling agent.
Detoxification treatment of arsenic-containing waste residues:
1. the arsenic-containing waste residue treated by the embodiment is calcium-arsenic residue, the arsenic content is 11wt%, the arsenic leaching toxicity is 98mg/L, the pH value is 12.6, and the water content is 48%.
2. Weighing 500g of calcium-arsenic slag, putting the calcium-arsenic slag into a high-efficiency stirring container, adding water, stirring and pulping, and adjusting the solid content to be 25% and the pH value to be 11.5.
3. Adding 150g of composite gelling agent, stirring and reacting for 10min, after the reaction is finished, performing injection molding in two parts, demolding after 8h, continuously maintaining indoors for 16h and 64h respectively to obtain a solidified block, and performing leaching toxicity, corrosivity and pressure resistance detection analysis on the solidified block, wherein the results are shown in Table 2.
Table 2 example 2 cured block test results
Item | Curing for 16h | Maintaining for 64h | GB18598-2019 |
Arsenic leach toxicity (mg/L) | 0.65 | 0.57 | ≤1.2 |
pH value | 11.82 | 11.72 | 7~12 |
Compressive strength/MPa | 2.5 | 9.8 |
The result shows that the composite gelling agent can effectively ensure that the gelling detoxification material forms a solidified block with higher strength, and provides a good microcosmic wrapping framework.
Example 3
Preparing a composite gelling agent:
the industrial waste residue used in the present embodiment is manganese residue generated from a certain electrolysis plant C, and comprises the following components by dry weight: 15.8wt% of silicon, 5.5wt% of iron, 6.8wt% of calcium, 5.4wt% of aluminum and 5.5wt% of manganese.
Adding water into manganese slag to prepare slurry, controlling the solid content of the manganese slag in the slurry to be 20wt%, then adding diatomite and sodium hydroxide into the slurry to obtain mixed solution, wherein the molar ratio of silicon to (iron + calcium + aluminum) in the mixed solution is 1.5, the concentration of the sodium hydroxide in the mixed solution is 20wt%, then carrying out hydrothermal reaction at 150 ℃ for 180min, filtering, roasting the obtained filter material at 150 ℃ for 240min, and then carrying out ball milling on the roasted material, wherein the ball material ratio is 2: 1, rotating speed of 80rpm, ball milling for 5min, then sieving with a 200-mesh sieve, and taking undersize products to obtain the composite gelling agent.
Detoxification treatment of arsenic-containing waste residues:
1. the arsenic-containing slag used in the embodiment is iron-arsenic slag, the arsenic content is 21%, the arsenic leaching toxicity is 75mg/L, the pH value is 1.38, and the water content is 44%.
2. Weighing 500g of iron-arsenic slag, putting the iron-arsenic slag into a high-efficiency stirring container, adding water, stirring and pulping, and adjusting the solid content to be 35% and the pH to be 6.5.
3. Adding 75g of composite gelling agent, stirring and reacting for 30min to obtain a gelling detoxification material, dividing the gelling detoxification material into five parts, respectively maintaining the materials indoors for 1d, 3d, 15d, 60d and 360d, and then performing leaching toxicity and corrosivity analysis, wherein the detection results are shown in Table 4.
Table 4 example 3 gel detoxification test results
The result shows that the composite gelling agent prepared under the condition can effectively ensure that the leaching toxicity of the gelled detoxification material arsenic is less than or equal to 1.2mg/L, the corrosivity meets the condition that the pH value is in the range of 7-12, and the leaching toxicity does not change obviously with the time, which indicates that the long-term stability of the gelled detoxification material is better.
In addition, according to the technology, a 10000 ton/year arsenic-containing material treatment production line is built in 2013 by a certain smelting enterprise in Hunan province, an arsenic-containing solid waste disposal project is built in 2012, the toxicity of arsenic leaching in the treated arsenic-containing gelled detoxification material is stable below 1mg/L and is stably lower than the entrance limit value of hazardous waste landfill pollution control standard, and the harmless disposal of the arsenic-containing solid waste is realized.
Comparative example 1
The other conditions are the same as example 1, except that the composite gelling agent is prepared from fly ash as a raw material, and the composite gelling agent comprises the following components in percentage by dry weight: 26.9wt% of silicon, 4.0wt% of iron, 2.6wt% of calcium, 16.6wt% of aluminum and 1.9wt% of magnesium. And curing the gelled detoxication material for 1d for detection and analysis of leaching toxicity and corrosivity, wherein the arsenic leaching toxicity is 2.56mg/L, the pH value of the leaching solution is 11.59, and the arsenic leaching toxicity of the gelled detoxication material exceeds the limit of GB 18598-2019.
Because the fly ash is the ash generated at high temperature, different from leaching slag such as manganese slag, and because of the lack of an iron-aluminum alum phase, the adsorption activity of the prepared composite gelling agent is greatly reduced, and the detoxification effect is influenced.
Comparative example 2
The other conditions were the same as in example 2 except that the hydrothermal reaction temperature was 100 ℃. The results are shown in Table 3.
Table 3 comparative example cured block test results
Item | Curing for 16h | Maintaining for 64h | GB18598-2019 |
Arsenic leach toxicity (mg/L) | 1.58 | 1.55 | ≤1.2 |
pH value | 11.81 | 11.74 | 7~12 |
Compressive strength/MPa | 0.3 | 1.5 |
Because the hydrothermal temperature is low, the hydrothermal alkali shock method is not thorough, mineral adsorption and gelling activity in the composite gelling agent are influenced, and the detoxification effect and the compressive strength of a solidified block are influenced.
Comparative example 3
The other conditions were the same as in example 3 except that the calcination temperature was 300 ℃. Curing the gelled detoxication material for 1d, and performing detection and analysis on leaching toxicity and corrosivity to obtain arsenic leaching toxicity of 3.12mg/L, wherein the pH value of the leaching solution is 7.95, and the arsenic leaching toxicity of the gelled detoxication material exceeds the limit of GB 18598-2019.
The reason is that the roasting temperature is too high, so that the iron-aluminum alum in the precursor of the composite gelling agent is transformed and loses the adsorption activity, and the detoxification effect is influenced.
Comparative example 4
The other conditions are the same as example 1, except that the calcined material is not ball-milled, but is directly sieved through a 250-mesh sieve, and undersize products are taken to obtain the composite gelling agent. And curing the gelled detoxication material for 1d for detection and analysis of leaching toxicity and corrosivity, wherein the arsenic leaching toxicity is 1.38mg/L, the pH value of the leaching solution is 11.58, and the arsenic leaching toxicity of the gelled detoxication material slightly exceeds the limit of GB 18598-2019.
The composite gelatinizing agent is not ball milled and activated, so that the micro specific surface area is limited, the mineral crystal lattice is relatively complete, the adsorption performance is affected and the detoxifying effect is reduced.
It should be understood that the above-described specific embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Obvious variations or modifications which are within the spirit of the invention are possible within the scope of the invention.
Claims (8)
1. A preparation method of a composite gelling agent for arsenic-containing waste residue detoxification is characterized by comprising the following steps: the method comprises the following steps: adding industrial waste residue into water to obtain slurry, then adding diatomite and sodium hydroxide into the slurry to obtain a mixed solution, carrying out hydrothermal reaction at 150-200 ℃, carrying out solid-liquid separation, roasting the obtained solid phase at 150-200 ℃, then carrying out ball milling, and sieving to obtain a composite gelling agent;
in the mixed solution, the molar ratio of silicon: (iron + calcium + aluminum) = 1.5-3.5;
the industrial waste residue and the iron-containing alumen phase comprise the following main components in percentage by mass: 10-30 wt% of silicon, 5-15 wt% of iron, 5-25 wt% of calcium, 5-15 wt% of aluminum and 2-10 wt% of manganese;
the ball-material ratio of the ball milling is 2-10: 1, the rotation speed of ball milling is 80 rpm-200 rpm, and the ball milling time is less than or equal to 15 min.
2. The preparation method of the composite gelling agent for detoxification of arsenic-containing waste residue as claimed in claim 1, wherein the preparation method comprises the following steps: in the slurry, the solid content of the industrial waste residue is 20-30 wt%.
3. The preparation method of the composite gelling agent for arsenic-containing waste residue detoxification as claimed in claim 1, wherein the preparation method comprises the following steps: in the mixed solution, the concentration of the sodium hydroxide is 20-30 wt%.
4. The preparation method of the composite gelling agent for arsenic-containing waste residue detoxification as claimed in claim 1, wherein the preparation method comprises the following steps: the hydrothermal reaction time is 180-300 min, and the roasting time is 240-360 min.
5. The composite gelling agent for detoxification of arsenic-containing waste residue prepared by the preparation method according to any one of claims 1 to 4.
6. The application of the composite gelling agent for detoxification of arsenic-containing waste residue prepared by the preparation method according to any one of claims 1 to 4 is characterized in that: the composite gelling agent is used for gelling and detoxifying arsenic-containing waste residues; the treatment process of the gelling detoxification comprises the following steps: grinding, sieving and mixing the arsenic-containing waste residues to obtain slurry, adjusting the pH value to 6-12, adding a composite gelling agent, reacting under stirring, and naturally curing to obtain the gelled detoxification material.
7. The application of the composite gelling agent for arsenic-containing waste residue detoxification as claimed in claim 6, wherein the composite gelling agent comprises: the arsenic-containing waste residue contains 1-25 wt% of arsenic and the leaching toxicity of arsenic is less than or equal to 100 mg/L; the solid content in the slurry is 20-50 wt%; the mass ratio of the composite gelling agent to the arsenic-containing waste residue is 0.05-0.30: 1.
8. the application of the composite gelling agent for arsenic-containing waste residue detoxification as claimed in claim 6, wherein the composite gelling agent comprises: the reaction time is 5 min-30 min, and the natural curing time is more than or equal to 18 h.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110640289.3A CN113443843B (en) | 2021-06-09 | 2021-06-09 | Composite gelling agent for arsenic-containing waste residue detoxification and preparation method and application thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110640289.3A CN113443843B (en) | 2021-06-09 | 2021-06-09 | Composite gelling agent for arsenic-containing waste residue detoxification and preparation method and application thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113443843A CN113443843A (en) | 2021-09-28 |
CN113443843B true CN113443843B (en) | 2022-05-03 |
Family
ID=77811016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110640289.3A Active CN113443843B (en) | 2021-06-09 | 2021-06-09 | Composite gelling agent for arsenic-containing waste residue detoxification and preparation method and application thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113443843B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114101275B (en) * | 2021-11-25 | 2023-02-03 | 赛恩斯环保股份有限公司 | Mineralization and detoxification treatment method of arsenic alkali residue |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2739793A1 (en) * | 1995-10-13 | 1997-04-18 | Mcp Sarl | Treatment of ash or waste gases to render them inert |
EP1812357A1 (en) * | 2004-09-04 | 2007-08-01 | British Nuclear Fuels PLC | Encapsulation medium |
CN101182143A (en) * | 2007-11-07 | 2008-05-21 | 北京航空航天大学 | Preparation of composite high-expansion cementing material by using industrial slag and preparation technique thereof |
CN102249609A (en) * | 2011-04-29 | 2011-11-23 | 昆明理工大学 | Arsenic-containing waste slag solidified body and preparation method thereof |
CN102718418A (en) * | 2012-06-19 | 2012-10-10 | 中南大学 | Method of using modified manganese slag cement admixture to prepare composite Portland cement |
CN104556920A (en) * | 2014-11-27 | 2015-04-29 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | Arsenic-containing neutralization slag solidifying and stabilizing agent and method for solidifying and stabilizing arsenic-containing neutralization slag by using same |
CN105130160A (en) * | 2015-07-14 | 2015-12-09 | 中南大学 | Method of synergistically solidifying sludge containing arsenic and other heavy metals through smelting waste residue |
CN112795383A (en) * | 2020-12-17 | 2021-05-14 | 赛恩斯环保股份有限公司 | Multiple heavy metal compound contaminated soil remediation agent and application method thereof |
-
2021
- 2021-06-09 CN CN202110640289.3A patent/CN113443843B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2739793A1 (en) * | 1995-10-13 | 1997-04-18 | Mcp Sarl | Treatment of ash or waste gases to render them inert |
EP1812357A1 (en) * | 2004-09-04 | 2007-08-01 | British Nuclear Fuels PLC | Encapsulation medium |
CN101182143A (en) * | 2007-11-07 | 2008-05-21 | 北京航空航天大学 | Preparation of composite high-expansion cementing material by using industrial slag and preparation technique thereof |
CN102249609A (en) * | 2011-04-29 | 2011-11-23 | 昆明理工大学 | Arsenic-containing waste slag solidified body and preparation method thereof |
CN102718418A (en) * | 2012-06-19 | 2012-10-10 | 中南大学 | Method of using modified manganese slag cement admixture to prepare composite Portland cement |
CN104556920A (en) * | 2014-11-27 | 2015-04-29 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | Arsenic-containing neutralization slag solidifying and stabilizing agent and method for solidifying and stabilizing arsenic-containing neutralization slag by using same |
CN105130160A (en) * | 2015-07-14 | 2015-12-09 | 中南大学 | Method of synergistically solidifying sludge containing arsenic and other heavy metals through smelting waste residue |
CN112795383A (en) * | 2020-12-17 | 2021-05-14 | 赛恩斯环保股份有限公司 | Multiple heavy metal compound contaminated soil remediation agent and application method thereof |
Non-Patent Citations (1)
Title |
---|
矿渣胶凝固化含砷固废技术及其机理研究;李辕成等;《矿产保护与利用》;20200630;第40卷(第3期);第7-11页 * |
Also Published As
Publication number | Publication date |
---|---|
CN113443843A (en) | 2021-09-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
He et al. | A critical review on approaches for electrolytic manganese residue treatment and disposal technology: Reduction, pretreatment, and reuse | |
CN103011726B (en) | Solidification treatment process of smelting waste of lead and zinc | |
CN108273830B (en) | Copper smelting typical waste slag synergistic solidification/stabilization treatment method | |
Yang et al. | Solidification/stabilization and separation/extraction treatments of environmental hazardous components in electrolytic manganese residue: a review | |
CN105923658B (en) | A kind of electroplating sludge material utilization method | |
CN105537247A (en) | Method for curing arsenic-containing waste residues through industrial waste residues | |
CN110482672A (en) | A method of arsenic in waste acid is efficiently removed for source of iron in situ with magnetic iron ore | |
CN113443843B (en) | Composite gelling agent for arsenic-containing waste residue detoxification and preparation method and application thereof | |
CN115611602A (en) | Phosphogypsum-containing pit filling and ecological restoration material and preparation method thereof | |
CN108928975A (en) | A kind of method that arsenious waste solution ultrasonic pressurized couples the solid arsenic that mineralizes | |
CN110665162A (en) | Method for fixing arsenic by transformation combination of arsenic sulfide slag in copper smelting | |
CN114160555B (en) | Wet mineralization and detoxification treatment method for arsenic sulfide slag | |
CN116803944A (en) | Concrete solid brick prepared by detoxication of waste incineration fly ash and preparation method thereof | |
CN107434398B (en) | Cyaniding tailing curing agent and application thereof | |
CN108687114B (en) | Mercury-containing reagent waste stabilization and solidification treatment process | |
CN110743125A (en) | Stabilizing agent for repairing arsenic slag and application method thereof | |
CN114394814B (en) | Method for recovering ammonia nitrogen in electrolytic manganese slag and preparing baking-free brick and baking-free brick | |
CN114129949B (en) | Mineralizing agent for wet mineralization and detoxification of arsenic-containing neutralized slag and application thereof | |
CN114288984A (en) | Modified lime nitrogen slag composite particle, preparation method thereof and application thereof in stabilized solidification of beryllium-containing solid waste or polluted soil | |
CN113145612A (en) | Method for co-curing electrolytic manganese slag heavy metal by utilizing coal gasification process tail gas and carbide slag | |
CN113372077A (en) | Curing agent and preparation method thereof | |
CN108246777B (en) | Solidification treatment method for electrolytic manganese slag | |
CN109205973A (en) | A kind of harmless curing method of complexity heavy metal hazardous waste sludge slag and its cured product | |
CN112300804A (en) | Heavy metal contaminated soil curing agent and preparation method and application thereof | |
CN110090850A (en) | It is a kind of using humic acid as the cement solidification arsenic scum method of additive |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |