CN108033663A - A kind of method and apparatus of multianode sludge electric dehydration - Google Patents
A kind of method and apparatus of multianode sludge electric dehydration Download PDFInfo
- Publication number
- CN108033663A CN108033663A CN201711286865.9A CN201711286865A CN108033663A CN 108033663 A CN108033663 A CN 108033663A CN 201711286865 A CN201711286865 A CN 201711286865A CN 108033663 A CN108033663 A CN 108033663A
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- China
- Prior art keywords
- sludge
- multianode
- porous
- electrically conductive
- piston plate
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- 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.)
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Classifications
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- 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
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- 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
- C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis
Abstract
The present invention relates to a kind of method and apparatus of multianode sludge electric dehydration, sludge is put into dewatering container, porous, electrically conductive cathode is set below dewatering container, multianode device is set above dewatering container, hole piston plate and pushing meanss, sludge is between porous, electrically conductive cathode and hole piston plate, power supply is connected with porous, electrically conductive cathode and multianode device, so that form electric field between porous, electrically conductive cathode and multianode device, moisture is separated out in porous, electrically conductive cathode side, after sludge dewatering, porous, electrically conductive cathode is removed from the lower port of dewatering container, pushing meanss promote hole piston plate to move downward, dewatered sludge is released out of dewatering container, terminate an electric dehydration process.Compared with prior art, the method for the present invention can expand the contact area of sludge and anode, improve electric dehydration efficiency, be conducive to quick sludge reduction, and the subsequent treatment disposal to sludge creates convenient condition.
Description
Technical field
The invention belongs to municipal solid wastes disposal field, more particularly, to a kind of method of multianode sludge electric dehydration and
Device.
Background technology
With the propulsion of China's urbanization and the continuous improvement of environmental protection requirement, at China cities and towns organic solid waste and sewage
Reason ability is increasingly enhanced, and the development of water ecology reparation dredging and sewage treatment facility construction causes Dredged bed mud and sewage plant dirty
Mud yield increasingly increases.If these sludge are dealt with improperly, secondary pollution, therefore the processing and disposal of sludge are easily caused to environment
Also the focus to receive much concern in recent years is become.Promulgate within 2009《Urban sewage treatment plant sludge disposal-blended landfill shale》GB/
For regulation when sludge is used for blended landfill, moisture content have to be lower than 60% in T23485-2009.
The main factor for influencing sludge treatment is the high-moisture percentage of sludge, and dehydration can not only be reduced to greatest extent
Sludge volume, and be also that essential pre-treatment is disposed in the harmless treatments such as sludge incineration, Composting utilization, sanitary landfills
Link, is to apply common problem the most universal during sludge manages.
Realize effective dehydration of sludge, improve the dehydration efficiency of sludge, mainly there are following two approach：First, improve sludge
Can dehydration property；Second, improve traditional mechanical sludge dewatering technique.The preprocess method for improving sludge dehydration has, biology
Digestion, flocculation, freezing/heat treatment, soda acid processing, supersound process and chemical oxidation etc..These pretreatments can improve sludge
Can dehydration property, but due to tradition machinery dehydration mechanical ＆ electrical technology limitation, handle residual active sludge when, product (mud cake) moisture content
Usually still greater than 80%, it is difficult to successive depths processing disposal.Therefore need using improve traditional sludge mechanical dehydration technique into
Row dehydration, wherein mainly including dry Contact-sorption, machinery hot (solar energy) extruding, ultrasound and/or the compound auxiliary in magnetic field and electricity
The dehydration new technology such as field auxiliary.In these new technologies, auxiliary material is adsorbed by drying, heat dehydration desiccation and the high of Composite Field auxiliary provide
Source, energy consumption add the enforcement difficulty of dehydration, and electric field-assisted dewatering speed is fast in contrast, efficient and industrial applications
Have good prospects, therefore it will play an increasingly important role in sludge dewatering treatment.
Electric field-assisted is dehydrated, commonly referred to as electric dehydration, mainly removes the inside in sludge by electrodialysis and electromigration
Water and part surface water, reach the desiccation of sludge, are a kind of processing modes more more efficient than traditional sludge mechanical dehydration.It is existing
Sludge apparatus for electrodewatering is less, and there are many deficiencies, such as：Existing intermittent horizontal component of electric field and vertical electric field sludge dewatering dress
Put, with the variation in electrical contact for carrying out anode and sludge of electric dehydration, dehydration efficiency declines rapidly, the design solution of pin type anode
Determine the problem of in electrical contact, but dewatered sludge needs to dig out from container, and running cost is higher；Belt electric field-assisted takes off
For water installations there are complicated, cost is higher, and maintenance cost is high, is generalized to the problems such as relatively difficult in practical application.Therefore have
The necessary technology to current sludge electric dehydration is started with, and develops a kind of electric dehydration processing unit simple in structure, Cheap highly effective.
The content of the invention
For overcome existing apparatus for electrodewatering there are the problem of, the present invention propose a kind of method of multianode sludge electric dehydration
And device.The present invention increases the contact area of anode and sludge, ensure that dehydration by increasing anode quantity and length
Anodic and sludge it is in electrical contact, improve electric field dehydration efficiency；After sludge removes certain moisture, push device for discharging and hold very much
Easily dewatered sludge is released from device；Anode is fixedly installed with respect to dewatering container at the same time, is hardly damaged.The method of the present invention operates
Simplicity, is easy to engineering popularization, and resistance is small, and power consumption is low, and capital cost is low.The process object of the present invention includes municipal sludge, river
Bottom Dredged bed mud and methane tank residue etc..
The purpose of the present invention can be achieved through the following technical solutions：
A kind of device of multianode sludge electric dehydration, including：
Dewatering container：For placing sludge, and upper lower open mouth,
Porous, electrically conductive cathode：Below dewatering container,
Hole piston plate：In dewatering container, it can be removed from the upper end opening or lower ending opening of dewatering container,
Pushing meanss：It is connected with hole piston plate, for promoting hole piston plate to be moved up and down in dewatering container,
Multianode device：Worn including a tablet and the multiple column anodes being connected to below the tablet, multiple column anodes
The hole of hole piston plate is crossed,
Power supply：For being connected with porous, electrically conductive cathode and multianode device so that porous, electrically conductive cathode and multianode device
Between form electric field,
Space between porous, electrically conductive cathode and hole piston plate is used to place sludge.
Preferably, it is provided with captation below the porous, electrically conductive cathode.
Preferably, the captation includes container or the facilities such as bucket, basin, pond.
Preferably, the porous, electrically conductive cathode surface is covered with filter cloth.
Preferably, the dewatering container is cylindrical shape.
Preferably, the dewatering container is insulating materials.
Preferably, the column anode is cylinder, and the hole of hole piston plate is that can make the circle that column anode passes through
Shape.
Preferably, the pushing meanss can use automatic pushing structure, can also use manual pushing structure, push away automatically
Dynamic structure includes linear motor be connected with hole piston plate, linear motor can make hole piston plate in dewatering container up and down oneself
By moving.Manual pushing structure includes the press handle being connected by connecting rod with hole piston plate.Press handle can by connecting rod
Hole piston plate is set freely up and down to be moved in dewatering container.
Pushing meanss form the shedding mechanism for releasing dewatered sludge together with hole piston plate.
Preferably, the tablet and dewatering container junction seal, it can be achieved that mode include setting sealing ring.
Preferably, the column anode is parallel to each other.
Preferably, the column anode contains iron oxide, lead oxide, tin oxide, ruthenium-oxide, indium oxide selected from metallic substrates
Or composite oxides electrode.
Preferably, the power source supplies DC source or pulsed power supplies, its supply mode be direct current it is electrically continuous power supply or
The mode of operation of break-make is spaced, the voltage of electric field that the power supply provides is 10V-80V.
A kind of method that multianode sludge electric dehydration is carried out using above device of the present invention, dewatering container is put into by sludge
It is interior, porous, electrically conductive cathode is set below the dewatering container, multianode device, hole piston plate are set above the dewatering container
And pushing meanss, the sludge is between porous, electrically conductive cathode and hole piston plate, by power supply and porous, electrically conductive cathode and more
Anode assembly connects so that forms electric field between porous, electrically conductive cathode and multianode device, is separated out in porous, electrically conductive cathode side
Moisture, after sludge dewatering, porous, electrically conductive cathode is removed from the lower port of dewatering container, pushing meanss promote hole piston plate to
Lower movement, dewatered sludge is released out of dewatering container, terminates an electric dehydration process.
The sludge can be municipal sludge, river bed Dredged bed mud or methane tank residue.
Compared with prior art, advantages and beneficial effects of the present invention are as follows：
Anode is made multiple anodes being parallel to each other by the present invention, effectively increases anode and the contact area inside sludge,
Dehydration efficiency is added, the internal current of sludge in dehydration is reduced, improves energy consumption efficiency.After sludge dewatering,
The cathode conduction strainer is moved away from, presses device for discharging, sludge can Automatic-falling, it is easy to operate simple.Electric dehydration process
In can according to different sludge qualities control electric field strength, the dehydration of reinforcement sludge.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram of multianode sludge electric dehydration；
Fig. 2 is dewatering container main structure diagram；
Fig. 3 is dewatering container side structure schematic view；
Fig. 4 is dewatering container overlooking the structure diagram；
Fig. 5 is multianode device main structure diagram；
Fig. 6 is multianode device side structure schematic view；
Fig. 7 is multianode device overlooking the structure diagram；
Fig. 8 is manual pushing structure main structure diagram；
Fig. 9 is manual pushing structure side structure schematic view；
Figure 10 is manual pushing structure overlooking the structure diagram.
Figure label：1st, dewatering container, 2, porous, electrically conductive cathode, 3, multianode device, 31, tablet, 32, column anode,
4th, captation, 5, pushing meanss, 6, sludge, 7, hole piston plate, 8, power supply, 9, connecting rod, 10, press handle.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of device of multianode sludge electric dehydration, as shown in Figure 1, including dewatering container 1, porous, electrically conductive cathode 2, with holes
Piston plate 7, pushing meanss 5, multianode device 3 and power supply 8.
Dewatering container 1 is used to place sludge 6, and upper lower open mouth, and porous, electrically conductive cathode 2 is located at the lower section of dewatering container 1, with holes
Piston plate 7：In dewatering container 1, can be removed from the upper end opening or lower ending opening of dewatering container 1, pushing meanss 5 with it is with holes
Piston plate 7 connects, and for promoting hole piston plate 7 to be moved up and down in dewatering container 1, power supply 8 is used for and porous, electrically conductive cathode 2
And multianode device 3 connects so that form electric field between porous, electrically conductive cathode 2 and multianode device 3, porous, electrically conductive cathode 2 with
Space between hole piston plate 7 is used to place sludge 6.The lower section of porous, electrically conductive cathode 2 is provided with captation 4.Captation 4
Including the containers such as bucket, basin, pond or facility.2 surface of porous, electrically conductive cathode is covered with filter cloth.
With reference to figure 2, Fig. 3, Fig. 4, dewatering container 1 is cylindrical shape, and upper lower open mouth.Dewatering container 1 is insulating materials.
With reference to figure 5, Fig. 6, Fig. 7, multianode device 3 includes a tablet 31 and is connected to multiple columns of the lower section of tablet 31
Anode 32, multiple column anodes 32 pass through the hole of hole piston plate 7, and column anode 32 is cylinder.
The hole of hole piston plate 7 is that can make the circle that column anode 32 passes through.
Pushing meanss 5 can use automatic pushing structure, can also use manual pushing structure.
Automatic pushing structure includes the linear motor being connected with hole piston plate 7, and linear motor can make hole piston plate exist
Freely up and down moved in dewatering container.
With reference to shown in figure 8,9,10, manual pushing structure includes the press handle being connected by connecting rod 9 with hole piston plate 7
10.Press handle 10 can be such that hole piston plate 7 is freely up and down moved in dewatering container by connecting rod 9.
Pushing meanss form the shedding mechanism for releasing dewatered sludge together with hole piston plate 7.
Tablet 31 is sealed with 1 junction of dewatering container.
Column anode 32 is parallel to each other.
Column anode 32 is selected from the electrode containing iron oxide, lead oxide, tin oxide, ruthenium-oxide or indium oxide of metallic substrates.
Power supply 8 provides DC power supply or pulsed power supplies, its supply mode is the electrically continuous power supply of direct current or interval break-make
Mode of operation, the voltage of electric field that power supply 8 provides is 10V-80V.
A kind of method that multianode sludge electric dehydration is carried out using above device, sludge 6 is put into dewatering container 1, is taken off
The lower section of water container 1 sets porous, electrically conductive cathode 2, and the top of dewatering container 1 sets multianode device 3, hole piston plate 7 and promotes dress
5 are put, sludge 6 fills power supply 8 and porous, electrically conductive cathode 2 and multianode between porous, electrically conductive cathode 2 and hole piston plate 7
Put 3 connections so that form electric field between porous, electrically conductive cathode 2 and multianode device 3, water is separated out in 2 side of porous, electrically conductive cathode
Point, after sludge dewatering, the lower port of porous, electrically conductive cathode 2 from dewatering container 1 is removed, pushing meanss 5 promote hole piston plate 7
Move downward, dewatered sludge is released out of dewatering container 1, terminates an electric dehydration process.
Sludge can be municipal sludge, river bed Dredged bed mud or methane tank residue.
Embodiment 2
Sludge dewatering is carried out using the device of embodiment 1.
The sludge to be drained off of moisture content 83% is sent into electric dehydration container by sludge input unit, cake thickness is
50mm, is connected fixation with column anode, anode is connected fixation with porous, electrically conductive cathode, forms direct current by DC power anode
, moisture percentage in sewage sludge is reduced by electric dehydration.DC power supply power supply uses continuous voltage regulation way, supply voltage 20V, during dehydration
Between 10 minutes, the moisture in sludge is separated out by the porous, electrically conductive cathode filter cloth, is dripped under the effect of gravity, the moisture sloughed
Into the captation discharge below cathode.After sludge dewatering, porous, electrically conductive cathode is removed, pushing meanss promote hole piston plate
Move downward, dewatered sludge is released out of dewatering container, complete electric dehydration process.Dewatered sludge contains after electric field-assisted dehydration
Water rate is down to 71%.
Embodiment 3：
Sludge dewatering is carried out using the device of embodiment 1.
The sludge to be drained off of moisture content 83% is sent into electric dehydration container by sludge input unit, cake thickness is
60mm, is connected fixation with column anode, anode is connected fixation with conductive porous cathode, is powered in sludge by DC power anode
Form DC electric field.DC power supply power supply uses continuous voltage regulation way, supply voltage 30V, dewatering time 10 minutes, in sludge
Moisture oozed out by filter cloth on porous, electrically conductive cathode, complete dehydration after departing from sludge by gravity, the moisture sloughed
Into the captation discharge below cathode.After sludge dewatering, porous, electrically conductive cathode is removed, pushing meanss promote hole piston plate
Move downward, dewatered sludge is released out of dewatering container, complete electric dehydration process.Dewatered sludge contains after electric field-assisted dehydration
Water rate is down to 73%.
Embodiment 4：
Sludge dewatering is carried out using the device of embodiment 1.
The sludge to be drained off of moisture content 83% is sent into electric dehydration container by sludge input unit, cake thickness is
70mm, is connected fixation with column anode, anode is connected fixation with porous, electrically conductive cathode, takes on the telephone in sludge by DC power anode
Middle formation DC electric field.DC power supply power supply uses continuous voltage regulation way, supply voltage 50V, dewatering time 10 minutes, sludge
In moisture oozed out by porous, electrically conductive cathode, under the effect of gravity into below cathode captation discharge.Sludge dewatering
Afterwards, porous, electrically conductive cathode is removed, pushing meanss promote hole piston plate to move downward, dewatered sludge is pushed away out of dewatering container
Go out, complete electric dehydration process.The moisture content of dewatered sludge is down to 72% after electric field-assisted dehydration.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.
Person skilled in the art obviously easily can make these embodiments various modifications, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel disclose according to the present invention, do not depart from improvement that scope made and modification all should be the present invention's
Within protection domain.
Claims (10)
- A kind of 1. device of multianode sludge electric dehydration, it is characterised in that including：Dewatering container (1)：For placing sludge (6), and upper lower open mouth,Porous, electrically conductive cathode (2)：Below dewatering container (1),Hole piston plate (7)：In dewatering container (1), it can be removed from the upper end opening or lower ending opening of dewatering container (1),Pushing meanss (5)：Be connected with hole piston plate (7), for promote hole piston plate (7) in dewatering container (1) up and down It is mobile,Multianode device (3)：It is multiple including a tablet (31) and the multiple column anodes (32) being connected to below the tablet (31) Column anode (32) passes through the hole of hole piston plate (7),Power supply (8)：For being connected with porous, electrically conductive cathode (2) and multianode device (3) so that porous, electrically conductive cathode (2) with it is more Anode assembly forms electric field between (3),Space between porous, electrically conductive cathode (2) and hole piston plate (7) is used to place sludge (6).
- 2. the device of a kind of multianode sludge electric dehydration according to claim 1, it is characterised in that the porous, electrically conductive is cloudy Captation (4) is provided with below pole (2).
- 3. the device of a kind of multianode sludge electric dehydration according to claim 1, it is characterised in that the porous, electrically conductive is cloudy Pole (2) surface is covered with filter cloth.
- A kind of 4. device of multianode sludge electric dehydration according to claim 1, it is characterised in that the pushing meanss (5) automatic pushing structure or manual pushing structure are used, automatic pushing structure includes the straight-line electric being connected with hole piston plate (7) Machine, manual pushing structure include the press handle being connected by connecting rod with hole piston plate (7).
- A kind of 5. device of multianode sludge electric dehydration according to claim 1, it is characterised in that the tablet (31) with Dewatering container (1) junction seals.
- A kind of 6. device of multianode sludge electric dehydration according to claim 1, it is characterised in that the column anode (32) it is parallel to each other.
- A kind of 7. device of multianode sludge electric dehydration according to claim 1, it is characterised in that the column anode (32) iron oxide, lead oxide, tin oxide, ruthenium-oxide, indium oxide or composite oxides electrode are contained selected from metallic substrates.
- 8. the device of a kind of multianode sludge electric dehydration according to claim 1, it is characterised in that the power supply (8) carries For DC power supply or pulsed power supplies, its supply mode be direct current it is electrically continuous power supply or interval break-make mode of operation, the electricity The voltage of electric field that source (8) provides is 10V-80V.
- 9. a kind of method that multianode sludge electric dehydration is carried out using device any one of claim 1-8, its feature are existed In sludge (6) is put into dewatering container (1), porous, electrically conductive cathode (2), the dehydration are set below the dewatering container (1) Multianode device (3), hole piston plate (7) and pushing meanss (5) are set above container (1), and the sludge (6) is led positioned at porous Between electric cathode (2) and hole piston plate (7), power supply (8) is connected with porous, electrically conductive cathode (2) and multianode device (3), is made Obtain and form electric field between porous conductive cathode (2) and multianode device (3), moisture is separated out in porous, electrically conductive cathode (2) side, it is dirty After mud dehydration, the lower port of porous, electrically conductive cathode (2) from dewatering container (1) is removed, pushing meanss (5) promote hole piston plate (7) move downward, dewatered sludge is released out of dewatering container (1), terminates an electric dehydration process.
- 10. the method for a kind of multianode sludge electric dehydration according to claim 9, it is characterised in that the sludge is city Political affairs sludge, river bed Dredged bed mud or methane tank residue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711286865.9A CN108033663A (en) | 2017-12-07 | 2017-12-07 | A kind of method and apparatus of multianode sludge electric dehydration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711286865.9A CN108033663A (en) | 2017-12-07 | 2017-12-07 | A kind of method and apparatus of multianode sludge electric dehydration |
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| CN108033663A true CN108033663A (en) | 2018-05-15 |
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ID=62095845
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| CN201711286865.9A Pending CN108033663A (en) | 2017-12-07 | 2017-12-07 | A kind of method and apparatus of multianode sludge electric dehydration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108751640A (en) * | 2018-07-31 | 2018-11-06 | 浙江工商大学 | A kind of original position sludge synchronizes decrement and stablizes processing system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108751640A (en) * | 2018-07-31 | 2018-11-06 | 浙江工商大学 | A kind of original position sludge synchronizes decrement and stablizes processing system and method |
| CN108751640B (en) * | 2018-07-31 | 2023-08-18 | 浙江工商大学 | In-situ sludge synchronous decrement stabilization treatment system and method |
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Application publication date: 20180515 |