CN206266366U - A kind of processing equipment of heavy-metal contaminated soil wastewater eluting - Google Patents
A kind of processing equipment of heavy-metal contaminated soil wastewater eluting Download PDFInfo
- Publication number
- CN206266366U CN206266366U CN201620801209.2U CN201620801209U CN206266366U CN 206266366 U CN206266366 U CN 206266366U CN 201620801209 U CN201620801209 U CN 201620801209U CN 206266366 U CN206266366 U CN 206266366U
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- heavy
- contaminated soil
- metal contaminated
- wastewater eluting
- processing equipment
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- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model provides a kind of processing equipment of heavy-metal contaminated soil wastewater eluting, including a light electrolysis groove, a Fenton reactor and a sedimentation basin, the light electrolysis groove is used to the wastewater eluting of light electrolysis heavy-metal contaminated soil, the Fenton reactor is connected with the light electrolysis groove, it is used to aoxidize the wastewater eluting, the sedimentation basin is connected with the Fenton reactor, and the wastewater eluting after oxidation carries out precipitate and separate into the sedimentation basin.The processing equipment of the heavy-metal contaminated soil wastewater eluting can efficient process heavy-metal contaminated soil wastewater eluting and economically feasible.
Description
Technical field
The utility model is related to a kind of sewage treatment equipment, more particularly to a kind of place of heavy-metal contaminated soil wastewater eluting
Reason equipment.
Background technology
Elution technique has the advantages that processing speed is fast, removal efficiency is high, therefore is commonly used in heavy-metal contaminated soil
A kind of restorative procedure.But the method is that pollutant is transferred in water from soil, and pollutant is not eliminated.Want such
Sewage is directly discharged, then it must be processed.
Accordingly, it is desirable to provide a kind of processing equipment of heavy-metal contaminated soil wastewater eluting, high treating effect and economy can
OK.
Utility model content
A purpose of the present utility model is to provide a kind of processing equipment of heavy-metal contaminated soil wastewater eluting, can be high
The wastewater eluting and economically feasible of effect treatment heavy-metal contaminated soil.
To achieve the above object, the utility model provides a kind of processing equipment of heavy-metal contaminated soil wastewater eluting, bag
A light electrolysis groove, a Fenton reactor and a sedimentation basin are included, the light electrolysis groove is to light electrolysis heavy-metal contaminated soil
Wastewater eluting, the Fenton reactor is connected with the light electrolysis groove, is used to aoxidize the wastewater eluting, the sedimentation basin and institute
State Fenton reactor to be connected, the wastewater eluting after oxidation carries out precipitate and separate into the sedimentation basin.
It is preferred that the processing equipment of the heavy-metal contaminated soil wastewater eluting also include an ion-exchanger, it is described from
Sub- exchanger is connected with the sedimentation basin, is used to process the supernatant after the sedimentation basin precipitate and separate.
It is preferred that the processing equipment of the heavy-metal contaminated soil wastewater eluting also includes an adding of agent system, it is described
Adding of agent system includes a sour throwing device, a Fenton reagent throwing device and a flocculating agent feeding device, and the acid is thrown
Feeder apparatus and the Fenton reagent throwing device be used to respectively to added in the Fenton reactor acid and Fenton reagent, the wadding
Solidifying agent throwing device is used to adding flocculant in the sedimentation basin.
It is preferred that the acid is sulfuric acid.
Compared with prior art, the drip washing that processing equipment of the present utility model is processed for processing heavy-metal contaminated soil is given up
Water, the wastewater eluting of metallic pollution soil is acid, contains acidic electrolyte bath, and the processing equipment includes a light electrolysis groove, micro-
Electrolytic cell forms numerous trickle battery using there is potential difference between iron-carbon particle, and the low iron of current potential is used as negative electrode, electricity
Position carbon high does anode, and electrochemical reaction occurs in the aqueous solution containing acidic electrolyte bath.The technique can be by Soil leaching mistake
The substantial amounts of metal complex produced in journey is converted into metal ion, and substantial amounts of through containing in the waste water after microelectrolysis processing
Fe2+, reduce the addition of Fenton reagent in follow-up Fenton reactor.Enter in Fenton reactor through the waste water after microelectrolysis processing
Aoxidized, using ferrous sulfate be catalyst in the case of pH value is acid (PH3~4), add hydrogen peroxide, this process meeting
Producing substantial amounts of hydroxyl radical free radical, hydroxyl radical free radical has effect well to contact break；The ferrous sulfate for adding in the process of running
Can be as reducing agent, hexavalent chrome reduction trivalent chromium；On the other hand the colloids of Fe (OH) 3 of generation have and flocculate and absorption work(
Can, the metals such as copper, nickel can be converted into sediment, rear end precipitation process can be strengthened, reduce flocculant in post precipitation pond
Dosage.Water outlet after Fenton reactor internal oxidition is precipitated, most heavy metal contaminants are can remove.The treatment sets
Standby efficiency high, and take full advantage of the acidic electrolyte bath and Fe of wastewater eluting2+, added amount of chemical is small, low cost, economically feasible.
Brief description of the drawings
Fig. 1 is the schematic diagram of the processing equipment of the utility model heavy-metal contaminated soil wastewater eluting.
Specific embodiment
The several different most preferred embodiments of the utility model are illustrated below with reference to the accompanying drawings, wherein identical mark in different figures
Number represent identical part.Below in conjunction with the accompanying drawings, embodiment of the present utility model is elaborated.
The utility model essence is providing a kind of processing equipment 1 of heavy-metal contaminated soil wastewater eluting, can efficient process
The wastewater eluting and economically feasible of heavy-metal contaminated soil.
As shown in figure 1, according to water (flow) direction, the processing equipment 1 of heavy-metal contaminated soil wastewater eluting includes a light electrolysis
Groove 10, a Fenton reactor 20, a sedimentation basin 30 and an ion-exchanger 40.Ion-exchanger 40 may be selected to use, when heavy
The water outlet in shallow lake pond 30 has reached discharge or standard, ion-exchanger 40 this link can be saved, directly by the supernatant after precipitation
Liquid is discharged or reuse.Specifically, light electrolysis groove 10 is used to the wastewater eluting of light electrolysis heavy-metal contaminated soil, Fenton reactor 20
It is connected with light electrolysis groove 10, is used to aoxidize wastewater eluting, sedimentation basin 30 is connected with Fenton reactor 20, the wastewater eluting after oxidation
Precipitate and separate is carried out into sedimentation basin 30.If the wastewater eluting after precipitate and separate is not reaching to discharge or reuse standard, can sink
The water outlet in shallow lake pond 30 is delivered to ion-exchanger 40, and ion-exchanger 40 is connected with sedimentation basin 30, is used to process sedimentation basin 30 and sinks
The supernatant formed sediment after separating.Ion-exchanger 40 is prior art, is repeated no more again.
It is preferred that the processing equipment 1 of heavy-metal contaminated soil wastewater eluting also includes an adding of agent system 50, medicament is thrown
Adding system 50 includes a sour throwing device 51, a Fenton reagent throwing device 52 and a flocculating agent feeding device 53, and acid is added
Device 51 and Fenton reagent throwing device 52 are used to respectively to acid and Fenton reagent is added in Fenton reactor 20, and acid is sulfuric acid,
Flocculating agent feeding device 53 is used to adding flocculant in sedimentation basin 30.
Processing equipment of the present utility model 1 processes the wastewater eluting for processing heavy-metal contaminated soil, metallic pollution soil
Substantial amounts of acid can be added in the lessivation of earth leaches the metal in soil, therefore waste water is acid, contains acidic electrolysis
Matter, the light electrolysis groove 10 of the processing equipment 1 need to be run in acid condition, therefore the acidic electrolyte bath that waste water contains can be reduced
The dosage of acid, the processing equipment 1 forms numerous trickle battery using there is potential difference between iron-carbon particle, current potential
Used as negative electrode, current potential carbon high does anode to low iron, and electrochemical reaction occurs in the aqueous solution containing acidic electrolyte bath.The work
The substantial amounts of metal complex that skill will can be produced during Soil leaching is converted into metal ion, and after microelectrolysis processing
Contain substantial amounts of Fe in waste water2+, reduce the addition of Fenton reagent in follow-up Fenton reactor 20.Through useless after microelectrolysis processing
Water into being aoxidized in Fenton reactor 20, in the case of pH value is acid (PH3~4), using ferrous sulfate be catalyst,
Hydrogen peroxide is added, this process can produce substantial amounts of hydroxyl radical free radical, hydroxyl radical free radical has effect well to contact break；Running
The ferrous sulfate added in journey can be as reducing agent, hexavalent chrome reduction trivalent chromium；On the other hand the Fe (OH) for generating3Colloid
With flocculation and adsorption function, the metals such as copper, nickel can be converted into sediment, rear end precipitation process can be strengthened, reduced follow-up
The dosage of flocculant in sedimentation basin 30.Water outlet after the internal oxidition of Fenton reactor 20 is precipitated, be can remove most
Heavy metal contaminants.The efficiency high of processing equipment 1, and take full advantage of the acidic electrolyte bath and Fe of wastewater eluting2+, adding of agent
Measure small, low cost, economically feasible.
Above disclosed is only preferred embodiment of the present utility model, can not limit this practicality with this certainly new
The interest field of type, therefore the equivalent variations made according to present utility model application the scope of the claims, still belong to the utility model and are covered
Scope.
Claims (4)
1. a kind of processing equipment of heavy-metal contaminated soil wastewater eluting, including：
One light electrolysis groove, the light electrolysis groove is used to the wastewater eluting of light electrolysis heavy-metal contaminated soil；
One Fenton reactor, the Fenton reactor is connected with the light electrolysis groove, is used to aoxidize the wastewater eluting；
One sedimentation basin, the sedimentation basin is connected with the Fenton reactor, and the wastewater eluting after oxidation enters the precipitation
Pond carries out precipitate and separate；And
One adding of agent system, the adding of agent system includes a sour throwing device and a Fenton reagent throwing device, institute
State sour throwing device and the Fenton reagent throwing device is used to respectively to adding acid and Fenton reagent in the Fenton reactor.
2. the processing equipment of heavy-metal contaminated soil wastewater eluting as claimed in claim 1, it is characterised in that：Also include one from
Sub- exchanger, the ion-exchanger is connected with the sedimentation basin, is used to process the supernatant after the sedimentation basin precipitate and separate.
3. the processing equipment of heavy-metal contaminated soil wastewater eluting as claimed in claim 1, it is characterised in that：The medicament is thrown
Adding system also includes a flocculating agent feeding device, and the flocculating agent feeding device is used to adding flocculant in the sedimentation basin.
4. the processing equipment of heavy-metal contaminated soil wastewater eluting as claimed in claim 3, it is characterised in that：The acid is sulphur
Acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620801209.2U CN206266366U (en) | 2016-07-27 | 2016-07-27 | A kind of processing equipment of heavy-metal contaminated soil wastewater eluting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620801209.2U CN206266366U (en) | 2016-07-27 | 2016-07-27 | A kind of processing equipment of heavy-metal contaminated soil wastewater eluting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206266366U true CN206266366U (en) | 2017-06-20 |
Family
ID=59037066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620801209.2U Active CN206266366U (en) | 2016-07-27 | 2016-07-27 | A kind of processing equipment of heavy-metal contaminated soil wastewater eluting |
Country Status (1)
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| CN (1) | CN206266366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282618A (en) * | 2017-07-28 | 2017-10-24 | 科海思（北京）科技有限公司 | A kind of system and method for repairing heavy metal in soil pollution |
-
2016
- 2016-07-27 CN CN201620801209.2U patent/CN206266366U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282618A (en) * | 2017-07-28 | 2017-10-24 | 科海思（北京）科技有限公司 | A kind of system and method for repairing heavy metal in soil pollution |
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