CN2721628Y - DC. electrolytic sludge reactor - Google Patents
DC. electrolytic sludge reactor Download PDFInfo
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- CN2721628Y CN2721628Y CN 200420092297 CN200420092297U CN2721628Y CN 2721628 Y CN2721628 Y CN 2721628Y CN 200420092297 CN200420092297 CN 200420092297 CN 200420092297 U CN200420092297 U CN 200420092297U CN 2721628 Y CN2721628 Y CN 2721628Y
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- sludge
- heavy metal
- utmost point
- mud
- point liquid
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Abstract
The utility model discloses a DC electrolytic sludge reactor. The main body part of the reactor is divided into an anode zone, a sludge zone and a cathode zone by an ion membrane, and under the action of an additional electric field, a heavy metal ion which is originally in the sludge or dissolved out in the additional electric field generates the movement of electromigration, and enters the cathode zone via an ionic selective membrane. Then the heavy metal ion is eliminated from a sludge system by eliminating polar liquid, which makes the heavy metal in the sludge eliminated. The DC electrolytic sludge reactor has the advantages of small volume, good processing effect, convenient operation and management, etc. The utility model generates a series of physical, chemical and electrochemical reactions under the action of the electric field via an additionally direct current power supply, and the purpose of eliminating the heavy metal in the sludge is reached by electromigration action, electrodialysis, etc. Accordingly the utility model provides safety and guarantee for the utilization of the sludge as resource.
Description
Technical field
The utility model relates to sludge treatment, environmental protection technical field, particularly the dc electrolysis sewage sludge reactor.
Background technology
Existing technology and the measure of being taked at the sludge heavy-metal problem relatively lags behind, and left heavy metal problem is particularly outstanding through utilization with after disposing for mud.Traditional sludge treatment technology often ignore the heavy metal problem maybe can't adopt an effective measure control mud in the heavy metal problem, handle not reduction of total metals in the mud of back, the stripping and the migration of heavy metal still might take place behind the later-stage utilization, thereby soil and body of groundwater are produced pollution.Do not see as yet both at home and abroad at present the molding device report of removing sludge heavy-metal is arranged.
Summary of the invention
The purpose of this utility model is exactly to utilize the heavy metal accumulation of process existence and animals and plants and human body are produced the problem of harm at city sewage sludge reclamation, has designed this dc electrolysis sewage sludge reactor that is used for removing the mud heavy metal.
The utility model is achieved in that two electrodes of dc electrolysis sewage sludge reactor are that inertia stone mill anode and inertia stone mill negative electrode insert external dc power supply, and direct supply links to each other with reometer.Inertia stone mill anode inserts in the positive column; Inertia stone mill negative electrode inserts in the cathodic area; Anion membrane with positive column and mud distinguish every; Cation membrane with cathodic area and mud distinguish every.The mud in mud district is discharged by bottom mud vent pipe after treatment, and anode utmost point liquid mainly adopts neutrality or acid reagent in the positive column, the H in the utmost point liquid
+Or the proton that electrode produces enters the mud district by anion membrane.Utmost point liquid make-up pump links to each other with the cathodic area with container for storing liquid respectively; Negative electrode utmost point liquid is based on acid reagent in the cathodic area, and will move and be enriched in heavy metal element discharge system in the negative electrode utmost point liquid by external utmost point liquid make-up pump control utmost point liquid pH value and the Circulation by utmost point liquid make-up pump; The processing cycle is 2 hours, and voltage is 36V.
Each zone has specific function in the dc electrolysis sewage sludge reactor.Be divided into three districts from the structure of function and device: positive column, cathodic area and mud district.The positive column comprises anode utmost point liquid, inertia stone mill anode and anion membrane.Major function is that oxidizing reaction takes place on graphite anode the sludge system negatively charged ion that migration comes in the anode utmost point liquid or under electric field action under power on condition, guarantees the electron exchange balance of whole system.Pending mud is deposited in the mud district, also be that stripping reaction and electromigratory main place take place under power on condition, the principal reaction that takes place comprises the electrochemistry stripping of mineral grain in the chemical stripping of heavy metal and the mud, and the type that migration takes place the ionic state heavy metal of stripping mainly contains: electromigration, electrodialysis etc.The cathodic area comprises negative electrode utmost point liquid, inertia stone mill negative electrode, cation membrane and utmost point liquid make-up pump.Major function is that the heavy metal ion in the negative electrode utmost point liquid is moved in assurance negative electrode utmost point liquid pH value stabilization, collection and eliminating.
The principal character of dc electrolysis sewage sludge reactor is as follows:
1. the second pond mud extraction of municipal sewage plant just can be carried out electrolysis treatment without pre-treatment, and two electrodes are inert material graphite, can not bring other external source metal ion in mud under power on condition, about 2 hours of processing cycle.Therefore, cost saving, the processing cycle is short effective.
2. the mud district of this device is the main place of heavy metal stripping, and the reaction complexity of stripping takes place, and mainly contains the chemical dissolution of heavy metal insoluble compound, the electrochemical dissolution of mineral grain.Under ionic state heavy metal generation electromigration, electrodialysis and the diffusion after the stripping to cathodic migration, and enrichment in negative electrode utmost point liquid.
3. whole device is divided into three functional zone by ion diaphragm: anode collecting region, mud district and negative electrode collecting region.Each distinguishes definite functions, and the district avoids electrode product that the stripping of main reaction region (mud district) heavy metal element is produced interference to guarantee also to isolate ion-exchange equilibrium respectively by ion diaphragm.
4. adopt acid reagent at the utmost point liquid of negative electrode collecting region, and replenish utmost point liquid and regulate and control the pH value of utmost point liquid, discharge the heavy metal ion removal system that the original utmost point liquid of negative electrode will move simultaneously by pump.
5. the material of this device employing is simple, and power supply is a direct supply, and the device operation is simple, safe and reliable to be easy to grasp and control.
This device volume is less, treatment effect good, operation and convenient management etc.This device passes through external dc power supply, series of physical, chemistry and electrochemical reaction take place under electric field action, and reach the purpose of eliminating sludge heavy-metal, thereby provide safety assurance for the recycling in mud later stage by electromigration and electrodialysis etc.By little trial run, municipal sludge can both reach the requirement of " pollutent control criterion in the agricultural mud " GB 4284-84 through the common residual content that exceeds standard heavy metal element Cu, Zn, Cd, Ni etc. in this device processing back mud.It is few that the processing cycle is short to be about 2 hours, do not bring other allogenic material into, fertile part of mud runs off, and is better than general biological and chemical method, stable and reliable operation.
Description of drawings
Fig. 1 is a vertical view of the present utility model.
Fig. 2 is the sectional view of utility model.
Be labeled as among the figure: 1-positive column, 2-inertia stone mill anode, 3-anion membrane, 4-mud district, 5-cation membrane, 6-cathodic area, 7-inertia stone mill negative electrode, 8-mud vent pipe, 9-utmost point liquid make-up pump, 10-container for storing liquid, 11-power supply, 12-reometer.
Embodiment
Embodiment:
As depicted in figs. 1 and 2, two electrodes of dc electrolysis sewage sludge reactor are that inertia stone mill anode (2) and inertia stone mill negative electrode (7) insert external dc power supply (11), and direct supply (11) links to each other with reometer (12).Inertia stone mill anode (2) inserts in the positive column (1); Inertia stone mill negative electrode (7) inserts in the cathodic area (6); Anion membrane (3) is separated positive column (1) and mud district (4); Cation membrane (5) is separated cathodic area (6) and mud district (4).The mud in mud district (4) is discharged by bottom mud vent pipe (8) after treatment, and anode utmost point liquid mainly adopts neutrality or acid reagent in positive column (1), and the proton that H+ in the utmost point liquid or electrode produce enters mud district (4) by anion membrane (3).Utmost point liquid make-up pump (9) links to each other with cathodic area (6) with container for storing liquid (10) respectively.Negative electrode utmost point liquid is based on acid reagent in the cathodic area (6), and will move and be enriched in heavy metal element discharge system in the negative electrode utmost point liquid by external utmost point liquid make-up pump (9) control utmost point liquid pH value and the Circulation by utmost point liquid make-up pump (9); The processing cycle is 2 hours, and voltage is 36V.
Claims (2)
1, a kind of dc electrolysis sewage sludge reactor, power supply (11), reometer (12), container for storing liquid (10) are arranged, two electrodes that it is characterized in that the dc electrolysis sewage sludge reactor are that inertia stone mill anode (2) and inertia stone mill negative electrode (7) insert external dc power supply (11), and direct supply (11) links to each other with reometer (12); Inertia stone mill anode (2) inserts in the positive column (1); Inertia stone mill negative electrode (7) inserts in the cathodic area (6); Anion membrane (3) is separated positive column (1) and mud district (4); Cation membrane (5) is separated cathodic area (6) and mud district (4); Mud vent pipe (8) is arranged at the bottom in mud district (4); Utmost point liquid make-up pump (9) links to each other with cathodic area (6) with container for storing liquid (10) respectively.
2, dc electrolysis sewage sludge reactor as claimed in claim 1 is characterized in that anode utmost point liquid mainly adopts neutrality or acid reagent in the described positive column (1), and negative electrode utmost point liquid is based on acid reagent in cathodic area (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092297 CN2721628Y (en) | 2004-08-27 | 2004-08-27 | DC. electrolytic sludge reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092297 CN2721628Y (en) | 2004-08-27 | 2004-08-27 | DC. electrolytic sludge reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2721628Y true CN2721628Y (en) | 2005-08-31 |
Family
ID=35012004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420092297 Expired - Fee Related CN2721628Y (en) | 2004-08-27 | 2004-08-27 | DC. electrolytic sludge reactor |
Country Status (1)
| Country | Link |
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| CN (1) | CN2721628Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921030A (en) * | 2010-08-05 | 2010-12-22 | 南京大学 | Device for processing heavy metal in garbage percolate |
| CN102091710A (en) * | 2010-12-10 | 2011-06-15 | 重庆大学 | Method and device for removing heavy metal pollutants in fly ash |
| CN102249503A (en) * | 2011-05-12 | 2011-11-23 | 泉州师范学院 | In-situ electrolysis deodorization process for municipal sludge |
| CN102503059A (en) * | 2011-11-23 | 2012-06-20 | 上海市环境科学研究院 | Method for removing heavy metal from sludge and device thereof |
| CN102839389A (en) * | 2012-09-26 | 2012-12-26 | 兰州交通大学 | Novel production method of electro-depositing and refining metal chloride by membrane process |
| CN104909526A (en) * | 2015-06-29 | 2015-09-16 | 同济大学 | Device for removing heavy metals in sludge by using electro-dynamic method and synchronously and deeply dehydrating sludge |
| CN106830610A (en) * | 2017-01-19 | 2017-06-13 | 浙江工业大学 | A kind of method that high current is electrolysed high-voltage electrodialysis high pressure gas press filtration Combined Treatment sludge |
| CN107790479A (en) * | 2016-08-29 | 2018-03-13 | 银河股份有限公司 | The recovery method of valuables and the minimizing technology of harmful substance |
-
2004
- 2004-08-27 CN CN 200420092297 patent/CN2721628Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921030A (en) * | 2010-08-05 | 2010-12-22 | 南京大学 | Device for processing heavy metal in garbage percolate |
| CN101921030B (en) * | 2010-08-05 | 2012-07-18 | 南京大学 | Device for processing heavy metal in garbage percolate |
| CN102091710A (en) * | 2010-12-10 | 2011-06-15 | 重庆大学 | Method and device for removing heavy metal pollutants in fly ash |
| CN102249503A (en) * | 2011-05-12 | 2011-11-23 | 泉州师范学院 | In-situ electrolysis deodorization process for municipal sludge |
| CN102503059A (en) * | 2011-11-23 | 2012-06-20 | 上海市环境科学研究院 | Method for removing heavy metal from sludge and device thereof |
| CN102839389A (en) * | 2012-09-26 | 2012-12-26 | 兰州交通大学 | Novel production method of electro-depositing and refining metal chloride by membrane process |
| WO2014048050A1 (en) * | 2012-09-26 | 2014-04-03 | 兰州交通大学 | Production method of electro-depositing and refining metal chloride by membrane process and preparation method for cation selective diaphragm used therein |
| CN102839389B (en) * | 2012-09-26 | 2015-06-03 | 兰州交通大学 | Novel production method of electro-depositing and refining metal chloride by membrane process |
| EP3002349A1 (en) * | 2012-09-26 | 2016-04-06 | Lanzhou Jiaotong University | Membrane process of electro-depositing and refining metal chloride and preparation of cation selective membrane |
| CN104909526A (en) * | 2015-06-29 | 2015-09-16 | 同济大学 | Device for removing heavy metals in sludge by using electro-dynamic method and synchronously and deeply dehydrating sludge |
| CN107790479A (en) * | 2016-08-29 | 2018-03-13 | 银河股份有限公司 | The recovery method of valuables and the minimizing technology of harmful substance |
| CN106830610A (en) * | 2017-01-19 | 2017-06-13 | 浙江工业大学 | A kind of method that high current is electrolysed high-voltage electrodialysis high pressure gas press filtration Combined Treatment sludge |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |