CN104761113A - Stabilized solidification method of electroplating sludge - Google Patents
Stabilized solidification method of electroplating sludge Download PDFInfo
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- CN104761113A CN104761113A CN201510207253.0A CN201510207253A CN104761113A CN 104761113 A CN104761113 A CN 104761113A CN 201510207253 A CN201510207253 A CN 201510207253A CN 104761113 A CN104761113 A CN 104761113A
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- electroplating sludge
- epoxy resin
- cement
- stabilization
- curing
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- 238000009713 electroplating Methods 0.000 title claims abstract description 65
- 239000010802 sludge Substances 0.000 title claims abstract description 61
- 238000007711 solidification Methods 0.000 title claims abstract description 23
- 230000008023 solidification Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title abstract description 42
- 239000004568 cement Substances 0.000 claims abstract description 26
- 239000003822 epoxy resin Substances 0.000 claims abstract description 22
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 12
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 10
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 10
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 10
- 239000010881 fly ash Substances 0.000 claims abstract description 8
- 239000011247 coating layer Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 5
- 230000006641 stabilisation Effects 0.000 claims description 35
- 238000011105 stabilization Methods 0.000 claims description 35
- 238000001723 curing Methods 0.000 claims description 28
- 239000000428 dust Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 13
- 239000003517 fume Substances 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 150000004982 aromatic amines Chemical class 0.000 claims description 3
- 239000010791 domestic waste Substances 0.000 claims description 3
- 238000004056 waste incineration Methods 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 3
- 239000002920 hazardous waste Substances 0.000 description 10
- 238000002386 leaching Methods 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000009388 chemical precipitation Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 238000004017 vitrification Methods 0.000 description 2
- 229930185605 Bisphenol Natural products 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 150000004760 silicates Chemical group 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
Abstract
The invention discloses a stabilized solidification method of electroplating sludge. Electroplating sludge to be processed and fly ash are firstly mixed, calcium hydroxide powder, cement and water are added under the effect of continuous stirring, a mixture is evenly stirred, and the pulp mixture is obtained; the pulp mixture is poured in a mold and maintained; after the surface of a solidified body is dried, epoxy resin and the corresponding solidification agent are mixed and are evenly coated to the surface of the solidified body; after a resin coating layer is totally solidified, an electroplating sludge solidified body capable of being directly embedded is obtained. The method is low in requirement of the electroplating sludge source, the heavy metal content and the particle size source and is suitable for stabilized solidification of most of electroplating sludge containing heavy metal.
Description
Technical field
The present invention relates to Hazardous wastes harmless treatment process, be specifically related to a kind of stabilization curing of electroplating sludge.
Background technology
Electroplating industry is the important industrial trade of China, in national economy, account for critical role.According to the statistic data of Chinese Ministry of Environmental Protection, end 2012, China's electroplating enterprise quantity reaches 4131.Electroplating sludge is the shale product produced after electroplating wastewater processing, and the production of numerous electroplating enterprise produces the electroplating sludge of substantial amounts.Containing a large amount of heavy metals in electroplating sludge, be the typical hazard refuse pointed out in " National Hazard refuse register ", if heavy metal entered environment wherein, cause very large harm by environment.At present, stabilization curing technology is the important method of process electroplating sludge, its objective is and makes the heavy metal in electroplating sludge present unreactiveness, and inclusive, to reduce the danger of electroplating sludge, and convenient transport and landfill.
Stabilization solidification place of China to electroplating sludge is equipped with strict management system, and the technological development disposed the solidification of its stabilization is also more and more deep.Conventional heavy metal stabilization method has neutralisation, oxidation reduction process and chemical precipitation method etc., and wherein chemical precipitation method comprises sulfide precipitation, precipitation of hydroxide, silicate precipitates, carbonate deposition.Conventional curing can be divided into: cement solidification method, lime solidification method, thermoplastic material cures (pitch, polyethylene, polyvinyl chloride, polypropylene, paraffin wax) method, thermosetting material solidification (resol) method, vitrification method, from cementation solidifying, large-scale envelope.
For above-mentioned several curing, cement wherein and lime solidification method raw material sources are wide, low price, simple to operate, perviousness is low, and it is strong, low to solid waste structural requirement to bear varying force, and processing cost is low; Bituminization method has that leaching rate reduces greatly, increase-volume is smaller, but invests high, higher to material water ratio, operational requirement; Vitrification method solidification effect is stablized, and is commonly used in the solidification aspect to nuclear energy waste material; Have from cementation solidifying method that cured body is stable, structural strength is high, but application surface is narrower.
For the stabilization curing of electroplating sludge, Chinese patent literature CN 1193834C (application number 03126608.8) discloses the method for the comprehensive utilization of a kind of industrial residue, solidification treatment electroplating sludge, alkaline industrial residue, electroplating sludge, water uniform stirring are become pH value be 7.5 ~ 9 mixing sludge; Mixing sludge, solidifying agent, stablizer and water are stirred; By stir after mixture molding and be solidified into building block; Rapid curing is carried out to building block, air-dry.Easily corroded by water body after the cured body landfill using the method to obtain, solidification effect is subject to environmental influence residing for shelf-time and cured body comparatively large, has the risk of Pollution exposure in environment.
Chinese patent literature CN 102514079 A(application number 201110388218.5) disclose one and realize electroplating sludge stabilization, immobilized treatment process, first by electroplating sludge dewatered drying, to grind and to cross 60 mesh sieves for subsequent use; In 25 DEG C ~ 50 DEG C temperature ranges, by electroplating sludge, solidifying agent, stablizer and water strong stirring in stirrer; Said mixture is carried out to molding, is solidified into building block; Block curing is air-dry.Described fixing agent is silicates fixing agent, and described stablizer is biological carbonaceous stablizer.This method requires higher to the pre-treatment of electroplating sludge, and need dehydration, oven dry, pulverization process, and biological carbonaceous preparation cost is high, the method market applicability is low.
Epoxy resin is a kind of and important thermosetting material, acid-fast alkali-proof after solidifying with its special curing agent, and has comparatively hard intensity, is used in the process of industrial enterprise's mill floor more.At present, someone adopts epoxy resin and petroleum pitch to make high strength, extraordinary ground surface material that environmental compatibility is good.
summary of the invention
Technical problem to be solved by this invention be to provide a kind ofly to be widely used, the stabilization curing of cost is lower, stabilization solidification effect is good electroplating sludge.
The technical scheme realizing the object of the invention is a kind of stabilization curing of electroplating sludge, comprises the following steps:
1. mixed with flying dust by pending electroplating sludge, the mass ratio of electroplating sludge and flying dust is 4 ~ 7: 1.
2. add calcium hydroxide powder in the material after 1. stirring to step, stir; The pH that calcium hydroxide powder adds rear mud leach liquor is 7 ~ 10.
3. add cement and water in the material after 2. stirring to step, stir, obtain paste mixture; Paste mixture is poured in mould; The building block of solidification postforming is positioned over maintenance in cement protecting box, and maintenance terminates take out and air-dryly namely obtain solidified cement body.
4., after being stirred by solidifying agent corresponding with it for epoxy resin, be coated in each surface of the solidified cement body of the surface drying that 3. step obtains, resin coating layer completion of cure after 48 ~ 72 hours, obtains final electroplating sludge cured body.
Above-mentioned steps 1. in the fume duct fly ash of the flying dust that the uses fume duct fly ash that is domestic waste incineration or coal-fired boiler in thermal power plant.
Above-mentioned steps 3. in the mass ratio of cement and electroplating sludge be 2
~4: 1.
Further, step 3. in water add-on be 1: 2 ~ 5 with the ratio of cement add-on.
Above-mentioned steps epoxy resin 4. used is bisphenol A type epoxy resin, and solidifying agent used is the aromatic amine curing agent corresponding with epoxy resin; The consumption volume ratio of epoxy resin and solidifying agent is 5 ~ 7:1.
As optionally, the thickness of step 4. epoxy resin coat is 2 ~ 3mm.
The present invention has positive effect:
(1) the present invention is when carrying out stabilization treatment to electroplating sludge, is first mixed with flying dust by electroplating sludge, and the heavy metal in electroplating sludge is adsorbed by flying dust; Then adopt the further stabilizing heavy metal of lime, and regulate the pH value of electroplating sludge, ensure that most of metal is stabilized with the form of oxyhydroxide, and the amphoteric metals such as chromium are anti-not molten.
(2) the present invention is when being cured the electroplating sludge after stabilization treatment, cement is first adopted to guarantee the strength and stability of cured body, then with the surface of epoxy resin coating solidified cement body, epoxy resin coating layer stops moisture attack cured body, make the objectionable impurities stable curings such as heavy metal in mud granule, can guarantee to dispose highly toxic substance in rear electroplating sludge completely by airtight and reach effect steady in a long-term.
(3) the cured body intensity that obtains of stabilization curing of the present invention is high, has hydrophobicity, and steady in a long-term, reaches direct landfill stabilization requirement.
(4) stabilization curing of the present invention is applicable to the stabilization solidification of great majority containing the electroplating sludge of heavy metal, and its source to electroplating sludge, heavy metal content, size are originated less demanding, applied widely.
(5) the stabilization solidify material of the inventive method use is as flying dust, lime, cement, epoxy resin etc., and source is wide, and price is low, wherein uses flying dust to obtain the effect of the treatment of wastes with processes of wastes against one another.In addition, the inventive method operation is very easy.To sum up, the solidification effect of electroplating sludge stabilization curing of the present invention is good, and applied widely, simple to operation, cost is lower, is the better method of electroplating sludge landfill pre-treatment.
Embodiment
(embodiment 1)
The present embodiment process be particulate state Zinc-containing electroplating mud, water ratio is about 40%, and mud particle diameter is less than 10cm.Requirement according to GB 5085.3-2007 " Hazardous wastes judging standard-leaching characteristic identification " obtains leach liquor, and recording in mud leach liquor only Zn content and exceed standard of landfill restriction, is 313mg/L.
the pH value recording mud leach liquor according to " Hazardous wastes judging standard-corrodibility is differentiated " (GB 5085.1-2007) is 7.4.
The stabilization curing of the electroplating sludge of the present embodiment comprises the following steps:
1. 100kg Zinc-containing electroplating mud is loaded in agitator, in agitator, drop into flying dust 20kg, stir, make mixing of materials even.Described flying dust is the fume duct fly ash of domestic waste incineration or the fume duct fly ash of coal-fired boiler in thermal power plant, the fume duct fly ash that the flying dust used in the present embodiment is coal-fired boiler in thermal power plant.
2. calcium hydroxide powder 8 is added in the material after 1. stirring to step
~be 10kg in 12kg(the present embodiment), stir, record the pH=9.2 of mud leach liquor according to " Hazardous wastes judging standard-corrodibility is differentiated " (GB 5085.1-2007), further process treated by the material after stirring evenly.
In this step, add that calcium hydroxide powder is last need ensure that the pH of mud leach liquor is 7 ~ 10, if the pH value that first time adds rear mud leach liquor is less than 7, then continue in mud, add calcium hydroxide powder.
3. add 300kg cement and 80kg water in the material after 2. stirring to step, stir, obtain paste mixture.Paste mixture being poured into the length of side is in the cube mold of 0.2 meter ~ 1 meter, and under forming pressure 3 ~ 10Mpa, compacting makes tight in paste mixture; Being positioned in cement protecting box by the building block of solidification postforming, is 17 DEG C in temperature
~maintenance 18 under the condition of 23 DEG C (in the present embodiment being 22 DEG C), humidity >95%
~36h, maintenance terminates take out from cement protecting box and air-dryly obtain solidified cement body.
The mass ratio of cement and Zinc-containing electroplating mud is 2
~4: 1, be 3: 1 in this enforcement.
4. after solidifying agent special with it for bisphenol A-type (trade mark E-44) epoxy resin being stirred, evenly be coated in each surface of the solidified cement body of the surface drying that 3. step obtains, 48 ~ 72 hours (being 48 hours in the present embodiment) resin coating layer completion of cures afterwards, complete the stabilization solidification treatment of electroplating sludge, obtaining can the stabilization cured body of direct landfill.
Described solidifying agent is the aromatic amine curing agent corresponding with epoxy resin, and the volume ratio of epoxy resin and solidifying agent is 5
~ 7: be 6:1 in 1(the present embodiment).Epoxy resin and the mixing of solidifying agent Quick uniform thereof, be coated on six faces of solidified cement body after mixing fast, the thickness of coat is 2 ~ 3mm.In resin curing process, ensure that six faces of solidified cement body all fully contact with air.
Get one piece of step stabilization cured body 4. at random as detection sample, recording its intensity is 6MPa.
Pulverizing above-mentioned sample according to GB 5086.1-1997 " solid waste-Leaching leaching method inversion method " and obtain leach liquor, recording Zn content is 5mg/L, meets GB 18598-2001 " hazard waste landfill Environmental capacity standard " requirement.The present embodiment is good to the stabilization solidification effect of electroplating sludge, can direct landfill.
(embodiment 2)
The present embodiment process be pureed copper-contained electroplating sludge, water ratio is 67%.Requirement according to GB 5085.3-2007 " Hazardous wastes judging standard-leaching characteristic identification " obtains leach liquor, and recording in mud leach liquor only copper content and exceed standard of landfill restriction, is 247mg/L.The pH value recording mud leach liquor according to " Hazardous wastes judging standard-corrodibility is differentiated " (GB 5085.1-2007) is 8.8.
All the other are identical with embodiment 1 for the stabilization curing of the electroplating sludge of the present embodiment 1, and difference is:
Step 1. in the mass ratio of electroplating sludge and flying dust be 6: 1.
2. step adds calcium hydroxide powder 6kg.The pH=9.3 of mud leach liquor is recorded according to " Hazardous wastes judging standard-corrodibility is differentiated " (GB 5085.1-2007).
The intensity of the stabilization cured body that the present embodiment obtains is 13MPa.
According to GB 5086.1-1997 " solid waste-Leaching leaching method inversion method " above-mentioned sample pulverized and obtain leach liquor, recording copper content is 43mg/L, meet GB 18598-2001 " hazard waste landfill Environmental capacity standard " requirement, can direct landfill.
(embodiment 3)
The present embodiment process be crystalloid nickel-containing sludge, water ratio is 61%, and mud particle diameter is 5mm ~ 10mm.Requirement according to GB 5085.3-2007 " Hazardous wastes judging standard-leaching characteristic identification " obtains leach liquor, and recording in mud leach liquor only nickel content and exceed standard of landfill restriction, is 37mg/L.The pH value recording mud leach liquor according to " Hazardous wastes judging standard-corrodibility is differentiated " (GB 5085.1-2007) is 8.1.
All the other are identical with embodiment 1 for the stabilization curing of the electroplating sludge of the present embodiment 1, and difference is:
Step 1. in the mass ratio of electroplating sludge and flying dust be 4.5: 1.
2. step adds calcium hydroxide powder 9kg.The pH=9.6 of mud leach liquor is recorded according to " Hazardous wastes judging standard-corrodibility is differentiated " (GB 5085.1-2007).
The intensity of the stabilization cured body that the present embodiment obtains is 9MPa.
According to GB 5086.1-1997 " solid waste-Leaching leaching method inversion method " above-mentioned sample pulverized and obtain leach liquor, recording nickel content is 4mg/L, meet GB 18598-2001 " hazard waste landfill Environmental capacity standard " requirement, can direct landfill.
The inventive method is applicable to the stabilization solidification of great majority containing the electroplating sludge of heavy metal, and its source to electroplating sludge, heavy metal content, size are originated less demanding.
Each embodiment and application examples are the explanations to the specific embodiment of the present invention above; but not limitation of the present invention; person skilled in the relevant technique without departing from the spirit and scope of the present invention; can also make various conversion and change and obtain corresponding equivalent technical scheme, therefore all equivalent technical schemes all should be included into scope of patent protection of the present invention.
Claims (6)
1. a stabilization curing for electroplating sludge, is characterized in that comprising the following steps:
1. mixed with flying dust by pending electroplating sludge, the mass ratio of electroplating sludge and flying dust is 4 ~ 7: 1;
2. add calcium hydroxide powder in the material after 1. stirring to step, stir; The pH that calcium hydroxide powder adds rear mud leach liquor is 7 ~ 10;
3. add cement and water in the material after 2. stirring to step, stir, obtain paste mixture; Paste mixture is poured in mould; The building block of solidification postforming is positioned over maintenance in cement protecting box, and maintenance terminates take out and air-dryly namely obtain solidified cement body;
4., after being stirred by solidifying agent corresponding with it for epoxy resin, be coated in each surface of the solidified cement body of the surface drying that 3. step obtains, resin coating layer completion of cure after 48 ~ 72 hours, obtains final electroplating sludge cured body.
2. the stabilization curing of electroplating sludge according to claim 1, is characterized in that: step 1. in the fume duct fly ash of the flying dust that the uses fume duct fly ash that is domestic waste incineration or coal-fired boiler in thermal power plant.
3. the stabilization curing of electroplating sludge according to claim 1, is characterized in that: step 3. in the mass ratio of cement and electroplating sludge be 2
~4: 1.
4. want the stabilization curing of the electroplating sludge described in 3 according to right, it is characterized in that: step 3. middle water add-on is 1: 2 ~ 5 with the ratio of cement add-on.
5. the stabilization curing of electroplating sludge according to claim 1, is characterized in that: step epoxy resin 4. used is bisphenol A type epoxy resin, and solidifying agent used is the aromatic amine curing agent corresponding with epoxy resin; The consumption volume ratio of epoxy resin and solidifying agent is 5 ~ 7:1.
6. the stabilization curing of electroplating sludge according to claim 5, is characterized in that: the thickness of step 4. epoxy resin coat is 2 ~ 3mm.
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|---|---|---|---|
| CN201710390959.4A CN106986516A (en) | 2015-04-28 | 2015-04-28 | A kind of stabilisation curing of electroplating sludge |
| CN201510207253.0A CN104761113B (en) | 2015-04-28 | 2015-04-28 | The stabilisation curing of electroplating sludge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106180134A (en) * | 2016-07-08 | 2016-12-07 | 重庆百世星程环境科技有限公司 | The curing of the produced chromium residue of electroplating wastewater technique |
| CN107188391A (en) * | 2017-07-25 | 2017-09-22 | 云南大地绿坤环保科技有限公司 | A kind of method that high concentration dreg containing arsenic stabilizes curing process |
| CN107651892A (en) * | 2017-09-18 | 2018-02-02 | 新中天环保股份有限公司 | A kind of electroplating sludge cement solidification technique |
| CN111848113A (en) * | 2020-07-28 | 2020-10-30 | 南京河海环境研究院有限公司 | Method and device for realizing efficient reduction and recycling of dewatered sludge by hydrothermal system |
| CN114907073A (en) * | 2022-05-27 | 2022-08-16 | 江苏科技大学 | Modified municipal sludge for covering soil of landfill and preparation method thereof |
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| CN109520974B (en) * | 2019-01-30 | 2023-10-17 | 河北大学 | Online detection system and detection method for heavy metals in drainage pipeline sludge |
| CN113213885B (en) * | 2021-05-27 | 2022-10-18 | 中国电建集团中南勘测设计研究院有限公司 | Heavy metal bottom mud curing agent and curing and stabilizing method thereof |
| CN113414221A (en) * | 2021-06-23 | 2021-09-21 | 中国矿业大学 | Double safe digestion method for plastic package after granulation and solidification of hazardous waste micro powder |
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| CN1451495A (en) * | 2003-05-20 | 2003-10-29 | 李康敏 | Method for integrative use of industrial waste residue, stabilizing and solidifying treatment of electroplating mud |
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| CN106180134A (en) * | 2016-07-08 | 2016-12-07 | 重庆百世星程环境科技有限公司 | The curing of the produced chromium residue of electroplating wastewater technique |
| CN107188391A (en) * | 2017-07-25 | 2017-09-22 | 云南大地绿坤环保科技有限公司 | A kind of method that high concentration dreg containing arsenic stabilizes curing process |
| CN107651892A (en) * | 2017-09-18 | 2018-02-02 | 新中天环保股份有限公司 | A kind of electroplating sludge cement solidification technique |
| CN111848113A (en) * | 2020-07-28 | 2020-10-30 | 南京河海环境研究院有限公司 | Method and device for realizing efficient reduction and recycling of dewatered sludge by hydrothermal system |
| CN114907073A (en) * | 2022-05-27 | 2022-08-16 | 江苏科技大学 | Modified municipal sludge for covering soil of landfill and preparation method thereof |
Also Published As
| Publication number | Publication date |
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| CN106986516A (en) | 2017-07-28 |
| CN104761113B (en) | 2017-06-13 |
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Effective date of registration: 20180328 Address after: The town of Castle Peak Road Yizheng City, Jiangsu province 225000 longan in Yangzhou City Patentee after: YANGZHOU JIEJIA INDUSTRIAL SOLID WASTE DISPOSAL Co.,Ltd. Address before: 213001 Changzhou Province in the Clock Tower District, Jiangsu, Wu Road, No. 1801 Patentee before: Jiangsu University of Technology |
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Application publication date: 20150708 Assignee: Yangzhou Jiejia Testing Technology Co.,Ltd. Assignor: YANGZHOU JIEJIA INDUSTRIAL SOLID WASTE DISPOSAL Co.,Ltd. Contract record no.: X2023320000225 Denomination of invention: Stabilization and solidification methods of electroplating sludge Granted publication date: 20170613 License type: Common License Record date: 20231107 |
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