CN201361394Y - Harmless treatment device of solid hazardous wastes - Google Patents
Harmless treatment device of solid hazardous wastes Download PDFInfo
- Publication number
- CN201361394Y CN201361394Y CNU2009201151249U CN200920115124U CN201361394Y CN 201361394 Y CN201361394 Y CN 201361394Y CN U2009201151249 U CNU2009201151249 U CN U2009201151249U CN 200920115124 U CN200920115124 U CN 200920115124U CN 201361394 Y CN201361394 Y CN 201361394Y
- Authority
- CN
- China
- Prior art keywords
- fenton oxidation
- stabilisation
- harmless treatment
- tail gas
- treatment device
- 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.)
- Expired - Lifetime
Links
- 239000007787 solid Substances 0.000 title claims abstract description 26
- 239000002920 hazardous waste Substances 0.000 title abstract description 12
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 35
- 230000003647 oxidation Effects 0.000 claims abstract description 33
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 230000006641 stabilisation Effects 0.000 claims description 36
- 239000002699 waste material Substances 0.000 claims description 29
- 238000001784 detoxification Methods 0.000 claims description 24
- 238000007711 solidification Methods 0.000 claims description 22
- 230000008023 solidification Effects 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 5
- 239000003814 drug Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 12
- 239000002912 waste gas Substances 0.000 abstract description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract 5
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
- 238000001723 curing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 231100000331 toxic Toxicity 0.000 description 6
- 230000002588 toxic effect Effects 0.000 description 6
- 229910052785 arsenic Inorganic materials 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 231100000816 toxic dose Toxicity 0.000 description 5
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052752 metalloid Inorganic materials 0.000 description 4
- 150000002738 metalloids Chemical class 0.000 description 4
- 150000002894 organic compounds Chemical class 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- 230000007096 poisonous effect Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 239000012028 Fenton's reagent Substances 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000003674 animal food additive Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical compound O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- FZERHIULMFGESH-UHFFFAOYSA-N N-phenylacetamide Chemical compound CC(=O)NC1=CC=CC=C1 FZERHIULMFGESH-UHFFFAOYSA-N 0.000 description 1
- GARRECNWBNHXJG-UHFFFAOYSA-N [N+](=O)([O-])C1=CC=CC=C1.[As] Chemical compound [N+](=O)([O-])C1=CC=CC=C1.[As] GARRECNWBNHXJG-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- -1 arsenic Chemical class 0.000 description 1
- 229940000488 arsenic acid Drugs 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012850 discrimination method Methods 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a harmless treatment device of solid hazardous wastes, which comprises an Fenton oxidation and detoxication device, a stabilizing/solidifying device and tail gas absorbing devices, wherein the Fenton oxidation and detoxication device is connected with a stirring and conveying device of which a pipeline is respectively connected with a feed hopper, H2O2 adding device and a ferrite adding device; the Fenton oxidation and detoxication device is connected with the stabilizing/solidifying device through a conveyer belt; a stabilizing/solidifying agentia adding device is arranged above the conveyer belt; and the Fenton oxidation and detoxication device and the stabilizing/solidifying device are respectively provided with the tail gas absorbing device. By the harmless treatment device, pollutants in solid hazardous waste residues can be oxidized and fixed, thus reducing hazards to environment, and simultaneously avoiding secondary pollution caused by waste gas; in addition, the Fenton oxidation and detoxication device and the stabilizing/solidifying device of the harmless treatment device can be separated for use and for the treatment of solid hazardous wastes with simple components.
Description
Technical field
The utility model relates to a kind of harmless treatment device of solid dangerous waste, specifically is meant the toxic organic compound in a kind of Fenton oxidation technology oxidation hazardous waste that adopts solid system and adopts the fixedly treating apparatus that combines of the toxic metals in the waste residue of stabilisation/curing technology.
Background technology
Solid dangerous waste be meant list in national hazardous waste register or according to the hazardous waste judging standard of national regulation and discrimination method identification have one or more dangerous features such as corrosivity, toxicity, inflammability, reactivity and infectivity, and do not get rid of solid waste with dangerous feature.At the character of present solid dangerous waste, the general employing burned or stabilisation/two kinds of processing methods of curing.Burn and generally be applicable to organic pollution, its equipment and burning expense are higher; Stabilisation/curing then is used for the processing of inorganic matter such as poisonous heavy metal, metalloid etc.When containing organic pollution and inorganic pollution simultaneously in the refuse, producing waste residue as organo-arsenic feed additive industry (phenalgin arsenic acid and Luo Keshasheng) had not only contained the nitrobenzene toxic organic compound but also had contained metalloid such as arsenic, intractability increases, the current research report that does not still have this aspect.
Summary of the invention
The utility model provides a kind of harmless treatment device of solid dangerous waste, handle the treatment process that combines based on solid system Fenton oxidation processes with stabilisation/curing, realize the degraded of toxic organic compound in the waste residue, simultaneously toxic metals in the waste residue or metalloid are fixed, do not produced secondary pollution simultaneously.
A kind of harmless treatment device of solid dangerous waste mainly comprises Fenton oxidation detoxification reaction device, stabilisation/solidification equipment and device for absorbing tail gas, described Fenton oxidation detoxification device is connected with stabilisation/solidification equipment by conveyer belt, and Fenton oxidation detoxification device and stabilisation/solidification equipment are equipped with device for absorbing tail gas.
Described Fenton oxidation detoxification device is connected to stirring conveying device, is connected to feed hopper, H on the pipeline of stirring conveying device respectively
2O
2Chemicals dosing plant and ferrous salt chemicals dosing plant.
Described conveyer belt one end links to each other with the discharge port of Fenton oxidation detoxification device, and the other end links to each other with the stabilisation/curing reaction groove of stabilisation/solidification equipment, and the conveyer belt top is provided with stabilisation/curing medicament chemicals dosing plant.
Be provided with mixer in described stabilisation/solidification equipment reactive tank.
Described device for absorbing tail gas is arranged on the top or the side of Fenton oxidation detoxification device and stabilisation/solidification equipment.
Waste residue is in Fenton oxidation detoxification reaction device and H
2O
2Carry out solid system Fenton oxidation reaction with ferrous salt, the oxidized degraded of organic matter, the waste gas that produces in the course of reaction is handled the back discharging by exhaust gas processing device; Waste residue enters stabilisation/solidification equipment by conveyer belt afterwards, and dosing in waste residue in the course of conveying is fixed toxic metals or metalloid in stabilisation/solidification equipment, and the waste gas that produces in the course of reaction is handled the back discharging by exhaust gas processing device.
The utility model device can be also fixing with the polluter oxidation of solid hazardous waste residue by Fenton oxidation detoxification device and stabilisation/solidification equipment, reduces the risk to environment.Device for absorbing tail gas at Fenton oxidation detoxification device and stabilisation/solidification equipment top can effectively absorb the tail gas that produces in the processing procedure, the secondary pollution of avoiding waste gas to bring.
The utility model device also can be taken Fenton oxidation detoxification device and stabilisation/solidification equipment apart, handle the simple solid dangerous waste of composition, adopt Fenton oxidation detoxification device such as containing poisonous organic solid hazardous waste residue, the solid hazardous waste residue that contains poisonous inorganic matter adopts stabilisation/solidification equipment.This appliance arrangement is simple, and processing ease is easily by manufacturing enterprise, the solid acceptance such as disposing enterprise of giving up.
Description of drawings
Fig. 1 is the utility model device schematic diagram.
The specific embodiment
Hazardous waste harmless treatment device as shown in Figure 1, mainly comprise Fenton oxidation detoxification reaction device and stabilisation/solidification equipment, Fenton oxidation detoxification device is connected with stabilisation/solidification equipment by conveyer belt, conveyer belt one end links to each other with Fenton oxidation detoxification bottom of device discharge port, the other end links to each other with the stabilisation/curing reaction groove of stabilisation/solidification equipment, and the conveyer belt top is provided with chemical feed pipe.The top of Fenton oxidation detoxification device is provided with exhaust gas processing device--spray absorber, and the top of stabilisation/solidification equipment is provided with device for absorbing tail gas--gas skirt and spray absorber.
Fenton oxidation detoxification device is connected to stirring screw conveyer, is connected to feed hopper, H on the pipeline of stirring screw conveyer respectively
2O
2Chemical feed pipe and ferrous salt chemical feed pipe.
Be provided with screw mixer in described stabilisation/solidification equipment reactive tank.
Producing waste residue (containing arsenic nitrobenzene-containing noxious material) with organic arsenic feed additive is example:
Solid hazardous waste residue enters Fenton oxidation detoxification reaction device from hopper by stirring screw conveyer, and the ferrous and mass percentage concentration of Fenton reagent of sulfuric acid is the H of 10-30%
2O
2Enter Fenton detoxification oxidation reaction apparatus from two chemical feed pipes respectively, the dosage of ferrous sulfate is the 0.04t/t waste residue, and the dosage of hydrogen peroxide is 0.5m
3/ t waste residue, the organic compounds that produces in the Fenton oxidizing process is handled the back discharging by spray absorber with dilute sulfuric acid.
After Fenton reaction finished, the turnover toxic concentration of nitrobenzene in the sample analysis waste residue reached and can carry out stabilisation/curings after the relevant criterion and handle, and as if below standard, then add Fenton reagent again and carries out detoxification.
Waste residue enters stabilisation/curing reaction groove through dump skip by conveyer belt, stabilisation/curing medicament--iron chloride, magnesium chloride, white lime and the cement chemical feed pipe from the conveyer belt successively adds, the dosage of iron chloride is the 0.15-0.25t/t waste residue, the dosage of magnesium chloride is the 0.10-0.30t/t waste residue, the dosage of white lime is the 0.15-0.25t/t waste residue, the dosage 1.4-2.0t/t waste residue of cement.The sour gas that produces in the stabilization reactions process is handled the back discharging by gas skirt and spray absorber with alkali lye.
The back discharging molding that stirs, then again maintenance 7-11 days.Detect there being arsenic to pass in and out toxic concentration then, can keep in after reaching relevant criterion, otherwise carry out stabilisation again behind the broken cured block/curings processing, until up to standard.
The waste gas absorption liquid is by suitably handling, organic pollution as absorption liquid in the solid system Fenton oxidation technology is removed by the Fenton oxidation processes, absorption liquid can be used for solidifying and handle, so this harmless treatment process will not produce waste water by adjusting the pH value in the stabilization process.
Through above-mentioned processing, nitrobenzene matters leaches toxic concentration and reduces to 19.8mg/L from 600-800mg/L, and wherein nitrobenzene leaches toxic concentration and reduces to 0.5-1.0mg/L from 50mg/L; Arsenic leaches toxic concentration and reduces to 0.98-3.1mg/L from 700-1000mg/L.
Claims (6)
1, a kind of harmless treatment device of solid dangerous waste, comprise Fenton oxidation detoxification reaction device, stabilisation/solidification equipment and device for absorbing tail gas, described Fenton oxidation detoxification device is connected to stirring conveying device, is connected to feed hopper, H on the pipeline of stirring conveying device respectively
2O
2Chemicals dosing plant and ferrous salt chemicals dosing plant; Described Fenton oxidation detoxification device is connected with stabilisation/solidification equipment by conveyer belt, and the conveyer belt top is provided with stabilisation/curing medicament chemicals dosing plant; Fenton oxidation detoxification device and stabilisation/solidification equipment are equipped with device for absorbing tail gas.
2, harmless treatment device of solid dangerous waste as claimed in claim 1 is characterized in that: be provided with reactive tank in described stabilisation/solidification equipment, be provided with mixer in the described reactive tank.
3, harmless treatment device of solid dangerous waste as claimed in claim 1 is characterized in that: described Fenton oxidation detoxification device top or side are provided with device for absorbing tail gas.
4, harmless treatment device of solid dangerous waste as claimed in claim 3 is characterized in that: described device for absorbing tail gas is a spray absorber.
5, harmless treatment device of solid dangerous waste as claimed in claim 1 is characterized in that: described stabilisation/solidification equipment top or side are provided with device for absorbing tail gas.
6, harmless treatment device of solid dangerous waste as claimed in claim 5 is characterized in that: described device for absorbing tail gas is gas skirt and spray absorber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201151249U CN201361394Y (en) | 2009-03-10 | 2009-03-10 | Harmless treatment device of solid hazardous wastes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201151249U CN201361394Y (en) | 2009-03-10 | 2009-03-10 | Harmless treatment device of solid hazardous wastes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201361394Y true CN201361394Y (en) | 2009-12-16 |
Family
ID=41472052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201151249U Expired - Lifetime CN201361394Y (en) | 2009-03-10 | 2009-03-10 | Harmless treatment device of solid hazardous wastes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201361394Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791462A (en) * | 2009-04-03 | 2010-08-04 | 清华大学 | Oxidation treatment device of solid wastes containing toxic organic matters |
| CN105597262A (en) * | 2015-12-18 | 2016-05-25 | 湖南恒凯环保科技投资有限公司 | Medicament and method for stabilizing and solidifying high-concentration arsenic-containing waste residue |
-
2009
- 2009-03-10 CN CNU2009201151249U patent/CN201361394Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791462A (en) * | 2009-04-03 | 2010-08-04 | 清华大学 | Oxidation treatment device of solid wastes containing toxic organic matters |
| CN101791462B (en) * | 2009-04-03 | 2012-05-30 | 清华大学 | Oxidation treatment device of solid wastes containing toxic organic matters |
| CN105597262A (en) * | 2015-12-18 | 2016-05-25 | 湖南恒凯环保科技投资有限公司 | Medicament and method for stabilizing and solidifying high-concentration arsenic-containing waste residue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091216 Effective date of abandoning: 20090310 |