CN110434166A - The bicyclic vertical self-cleaning type dehydrated in situ of one kind subtracts dirty electro reclamation device and method - Google Patents
The bicyclic vertical self-cleaning type dehydrated in situ of one kind subtracts dirty electro reclamation device and method Download PDFInfo
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- CN110434166A CN110434166A CN201910742931.1A CN201910742931A CN110434166A CN 110434166 A CN110434166 A CN 110434166A CN 201910742931 A CN201910742931 A CN 201910742931A CN 110434166 A CN110434166 A CN 110434166A
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- ring
- protection liquid
- cathodic protection
- pore water
- water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
- B09C1/085—Reclamation of contaminated soil chemically electrochemically, e.g. by electrokinetics
Abstract
The bicyclic vertical self-cleaning type dehydrated in situ of one kind subtracts dirty electro reclamation device and method, which includes that pore water collects ring, cathodic protection liquid release ring, the anti-blocking cathode of water guide insulation, inert anode, cathodic protection liquid storage pool, pore water storage pool, pH sensor, peristaltic pump, programmable controller；Cathodic protection liquid release ring is connect by water guide anti-blocking cathode and pore water the collection ring that insulate; water insulate anti-blocking cathode loop around inert anode setting; capillary water guide chimney filter is equipped in the anti-blocking cathode of water insulation; cathodic protection liquid release ring is collected ring with pore water by capillary water guide chimney filter and is connected to; pore water collects ring and cathodic protection liquid release ring is connect with peristaltic pump, and peristaltic pump is connected to pore water storage pool and cathodic protection liquid storage pool；PH sensor is installed, pH sensor and peristaltic pump are connect with programmable controller in pore water storage pool.The present invention can maximize guide pore water with separate pollutant for the purpose of, mitigate electrode blockage and cathodic region enriching pollutants.
Description
Technical field
The present invention relates to polluted bed muds to administer reparation field, and specifically a kind of bicyclic vertical self-cleaning type dehydrated in situ subtracts dirt
Electro reclamation device and method.
Background technique
Bed mud is the important component of river and lake aquatic ecosystem, mainly by inorganic mineral, organic matter and flowing phase composition.
China's river and lake is numerous, and in many economically developed, densely inhabited districts, the mankind's activities such as industrial and agricultural production cause river and lake by difference
Degree pollution, a large amount of pollutants are enriched in bed mud and cause serious endogenous pollution.When pollutants in sediments concentration be higher by background values 2~
At 3 times, that is, think there is potential hazard to the mankind and aquatic ecosystem, need to carry out it is in situ covering, dredging etc. modes carry out dirt
Dye releases the control.
Electrokinetics (Electrokinetics) are a kind of green technologies for repairing contaminated sediments, are mainly used for
Removing heavy metals and organic pollutant are removed from low-permeability bed mud.Its principle is made by applying DC electric field to polluted bed mud
Moisture and pollutant occur to migrate and achieve the purpose that removal under electric field action.Migration under electric field action mainly passes through electricity and moves
It moves and electrodialysis effect carries out.Electromigration refers to transition process of the charged ion under electric field action in bed mud pore water；
Electrodialysis is the motion process of bed mud pore water itself.Electrokinetics can be not only used for bottom-mud dewatering processing, it can also be used to bottom
The removal of mud heavy metal and organic pollutant.
Currently, most electro reclamation devices are usually by anode, cathode, sample room, anode chamber, cathode chamber, DC power supply etc.
Composition, structure is complicated, and engineer application difficulty is larger.In low-voltage direct electric field, bed mud pore water generates H by electrolysis+With OH-, sun
To cathodic migration, anion is then migrated to anode for ion and pore water.Neutral contaminants in bed mud are by electroosmotic flow and H+Shadow
It rings and is dissolved and discharges, and as pore water migration is enriched near electrode.However, due to failing to exclude pore water, pollutant
It is migrated rather than is separated in bed mud medium；And H+With a large amount of accumulations of OH-, the rapid acidification for also resulting in anode is rotten
The precipitation and complexation of erosion and the alkalization of cathode and metal ion.In addition, cationic especially positively charged heavy metal ion will be with yin
The OH- extremely nearby accumulated meets and generates precipitating, blocks bed mud micropore, conductance is caused to reduce, under energy consumption raising and remediation efficiency
Drop.Therefore, for electro reclamation, pore water is quickly discharged, avoids H+Largely assemble near electrode with OH-, alleviates electrode
Blocking and polarization are the key technology difficulties for improving polluted bed mud electrokinetic remediation efficiency and needing urgently to solve.
Patent CN 201710042701 discloses a kind of Electrokinetic Remediation of Polluted Soils device, is led to by several processing units
It crosses and is connected in series or in parallel.Each processing unit by vertical cylinder insulation processing case, vertical cylinder COMBOPO detachably more
It changes formula composite cathode, inert anode, make the components such as nonstandard programmable SynC alternating/direct current hybrid power supply and CAMP bags composition by oneself,
It can be applied to heavy metal and/or organic and/or radioactive pollution soil and/or mud and/or solid waste reparation and processing,
It can also be applied to the enrichment and extraction of rare and/or rare earth and/or noble metal lean ore.
Patent CN201721112967 discloses a kind of integrated flexible electro reclamation device laid suitable for mechanization, packet
Multifunctional electrodes band, conductive geotextile and drain pipe are included, it can be achieved that conduction, water guide and free-draining integration；It is described multi-functional
Electrode band can be processed into different wide formats according to soil remediation depth, can be inserted directly into soil and only need one end conducting wire connection electricity
Source, simple and convenient, not perishable, shear resistance is good；It with flexibility characteristics, can stack in rolls, save space, be readily transported and mechanical
Change large area to lay.
Patent CN 201711172415 discloses a kind of dystrophication sediment in-situ decrement decontamination based on pore water guide
Device, including D.C. regulated power supply, peristaltic pump, electric dehydration decontaminate electrode.Electric dehydration decontamination electrode include water guide electrode plate,
Set on the poly (methyl methacrylate) plate with holes of water guide electrode plate two sides, the strainer on the outside of poly (methyl methacrylate) plate with holes, it is covered on water guide electricity
The overlying water of pole plate completely cuts off cover.Strong with field work ability, the separation in situ of pollutants in sediments is good with removal effect, and power disappears
Consumption is few, and operating cost is low, and maintenance is simple, and no chemical agent pollution and solid waste generate, and influences on river and lake Benthic ecology environment
The advantages that small.
Pore water is the important preservation medium of sediment pollution and crucial release source, around pore water guide and pollutant point
From existing electro reclamation the relevant technologies have the disadvantage that with device
(1) accumulation of OH- causes pollutant to be accumulated near cathodic region, electrode fouling blockage, pore water draining occurs not
The problems such as smooth and enriching pollutants；During electro reclamation, contaminant transportation is more, but it is inadequate to be finally recovered removal；
(2) integration such as pore water guide, cathodic region pH value monitoring control and the protection of cathode good antiscale property considers not enough, to cause
Electro reclamation process interrupt or electrode replacement etc.；
(3) sheet or stick electrode and bed mud contact area are limited, and pore water guide ability is low, and pollution separation removal is not
Foot.
Summary of the invention
Deficiency in terms of to solve existing electric repairing technique and device, with maximize guide pore water with separate pollutant
For the purpose of, to mitigate electrode blockage and cathodic region enriching pollutants as key, propose that a kind of bicyclic vertical self-cleaning type is de- in situ
Water subtracts dirty electro reclamation device and method.
The present invention adopts the following technical scheme that realization:
The bicyclic vertical self-cleaning type dehydrated in situ of one kind subtracts dirty electro reclamation device, including pore water collects ring, cathode is protected
Protect liquid release ring, water guide insulate anti-blocking cathode, inert anode, cathodic protection liquid storage pool, pore water storage pool, pH sensor,
Peristaltic pump, programmable controller；Cathodic protection liquid release ring is located at pore water and collects ring top, and cathodic protection liquid release ring passes through
The anti-blocking cathode of water guide insulation is collected ring with pore water and is connect, and water insulate anti-blocking cathode loop around inert anode setting, and water insulation is anti-blocking
Capillary water guide chimney filter is equipped in cathode, cathodic protection liquid release ring is collected ring with pore water by capillary water guide chimney filter and is connected to, hair
Thin water guide chimney filter is used to collect pore water guide to pore water ring, and pore water collects ring and cathodic protection liquid release ring by leading
Pipe is connect with peristaltic pump, and peristaltic pump is connected to by conduit with pore water storage pool and cathodic protection liquid storage pool；Pore water storage
PH sensor is installed in pond, is insulated the pore water pH value of anti-blocking cathode guide, pH sensor and peristaltic pump for monitoring water guide
It is connect with programmable controller, the pore water pH value control peristaltic pump movement that programmable controller is used to monitor according to the ph sensor
The cathodic protection liquid of cathodic protection liquid storage pool is added to cathodic protection liquid release ring, cathodic protection liquid discharges the cathode in ring
Protection liquid discharges into the anti-blocking cathode of water guide insulation by capillary water guide chimney filter.
It further, further include insulate with water guide anti-blocking cathode, inert anode, peristaltic pump, programmable controller and pH biography
The power supply of sensor connection.
Further, it is annulus tubular structure, cathodic protection that the cathodic protection liquid release ring and pore water, which collect ring,
Liquid release ring connect to form hollow circuit cylinder barrel structure by water guide anti-blocking cathode and pore water the collection ring that insulate, and inert anode is by leading
The anti-blocking cathode loop of water insulation is set around in the middle part of the hollow circuit cylinder cylinder.
Further, the anti-blocking cathode of the water guide insulation is made of insulating layer, capillary conductive drainage blanket and anti-blocking layer thoroughly, absolutely
Edge layer is located on the outside of the conductive drainage blanket thoroughly of capillary, for limiting range to be repaired, completely cuts off untreated bed mud, the conductive draining thoroughly of capillary
Capillary water guide chimney filter, conductive material and plain conductor is distributed in cloth in layer, and capillary water guide chimney filter is used for guide pore water and cathode
Liquid is protected, conductive material connects power supply by plain conductor, and anti-blocking layer is located on the inside of the conductive drainage blanket thoroughly of capillary, for preventing bottom
Mud particle intrusion water guide insulate the capillary water guide chimney filter of anti-blocking cathode.
Further, the anti-blocking layer is made of stainless steel filtering net or permeable cloth.
It further, further include for pore water to be collected the handle that ring is inserted into target sediment layer.
Further, the handle includes superposed grip part and connect the inserted link extended downwardly with grip part, is inserted
Bar bottom collects ring bottom outside with pore water and is connected, and holding area is near cathodic protection liquid release ring, and slightly above cathode is protected
It protects liquid and discharges ring.
Further, the cathodic protection liquid release ring is detachable perforation rigid insulation pipe, the release of cathodic protection liquid
It is provided with aperture below ring, insulate the conductive saturating drainage blanket of capillary of anti-blocking cathode for accessing water guide.
Further, the cathodic protection liquid is the organic acid soln of soil environment friendly.
A kind of bicyclic vertical self-cleaning type dehydrated in situ subtracts dirty electric repair method, it is characterised in that using above-mentioned apparatus into
Row, described method includes following steps:
It powers Step 1: opening power supply to the anti-blocking cathode of water guide insulation and inert anode, under electric field action, bed mud hole
Water and its contained contaminant transportation to water guide insulate anti-blocking cathode, and water insulate the capillary water guide chimney filter in anti-blocking cathode for pore water
Guide to pore water is collected ring and is stored, and then programmable controller 12 controls peristaltic pump for the hole in pore water collection ring
Water is pumped into pore water storage pool；
Step 2: pH sensor real-time monitoring is discharged into the pore water pH value in pore water storage pool, when pore water pH value is in
When faintly acid or alkalinity, by programmable controller control peristaltic pump movement, by the cathodic protection liquid in cathodic protection liquid storage pool
It is added to cathodic protection liquid release ring, the cathodic protection liquid in cathodic protection liquid release ring is insulated the hair of anti-blocking cathode by water guide
Thin water guide chimney filter discharges into water guide and insulate anti-blocking cathode, and for dissolving, water guide insulate the fouling of anti-blocking cathode surface and activation is released
The pollutant for putting cathodic region enrichment, after pore water pH value returns acidity, programmable controller is closed by control peristaltic pump, is stopped
Only supplement cathodic protection liquid.
As the above scheme is adopted, present invention technological innovation outstanding and marked improvement are as follows:
(1) it is insulated the capillary water guide chimney filter of anti-blocking cathode by water guide, a connection pore water collects ring, and a connection is negative
Pole protects liquid to discharge ring, not only guide pore water, but also release cathodic protection liquid, solve water guide insulate anti-blocking cathode fouling it is stifled
The problems such as plug, cathodic region enriching pollutants, unimpeded pore water migration path promote the separation of cathodic region pollutant and release
It puts, improves pore water guide and pollutant fluxes efficiency；
(2) the electro reclamation process interrupt because of cathodic protection is avoided, cathode service life and working efficiency are improved, it is real
The automatically cleaning of cathode is showed；
(3) it defines electro reclamation range, improves utilization of power and electrokinetic remediation efficiency；It is anti-blocking to increase water guide insulation
The contact area of cathode and polluted bed mud is conducive to pore water collection and guide；
(4) it is combined using pH sensor with programmable controller (PLC), is become according to pore water storage pool water inlet pH value
Change, in conjunction with the acidification liberation characteristic of pollutant, the addition of science control cathodic protection liquid realizes the effective protection and dirt of electrode
Contaminate the Precise control of object separation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the bicyclic vertical self-cleaning type dehydrated in situ of the present invention subtracts dirty electro reclamation device；
Fig. 2 is the structural schematic diagram of the conductive drainage blanket thoroughly of capillary in the present invention；
Fig. 3 is the work flow diagram that the bicyclic vertical self-cleaning type dehydrated in situ of the present invention subtracts dirty electro reclamation device.
In figure: 1-pore water collection ring, the anti-blocking cathode of 2-water guides insulation, 3-inert anodes, 4-cathodic protection liquid are released
Put ring, 5-handles, 6-conduits, 7-pore water storage pools, 8-pH sensors, 9-peristaltic pumps, the storage of 10-cathodic protection liquid
Pond, 11-power supplys, 12-programmable controllers, the conductive saturating drainage blanket of 2-1-insulating layer, 2-2-capillary, the anti-blocking layer of 2-3-, 2-
2-1-capillary water guide chimney filter, 2-2-2-conductive material, 2-2-3-conducting wire.
Specific embodiment
Below in conjunction with the attached drawing in the present invention, the technical solution in the present invention is clearly and completely described.
Fig. 1 show the structural schematic diagram that the bicyclic vertical self-cleaning type dehydrated in situ of the present invention subtracts dirty electro reclamation device,
The device include pore water collect ring 1, cathodic protection liquid release ring 4, water guide insulate anti-blocking cathode 2, inert anode 3, handle 5,
Conduit 6, cathodic protection liquid storage pool 10, pore water storage pool 7, pH sensor 8, peristaltic pump 9, power supply 11 and programmable controller
(PLC)12.The anti-blocking cathode 2 of water guide insulation includes insulating layer 2-1, capillary conduction drainage blanket 2-2 and anti-blocking layer 2-3 thoroughly, wherein hair
Thin conductive drainage blanket 2-2 thoroughly includes capillary water guide chimney filter 2-2-1, conductive material 2-2-2 and conducting wire 2-2-3.
To polluted bed mud etc., type, content and the bio-available Zn concentration of the pollutants such as moisture content and heavy metal are investigated first, really
Periodical repair answers depth.Pore water is collected into ring 1 and is inserted into target sediment layer, it is the annular rigid insulation that insulate that the pore water, which collects ring 1,
Pipe, pore water are collected ring 1 and are connected to the anti-blocking cathode 2 of water guide insulation, and it is anti-for collecting and storing water guide insulation that pore water collects ring 1
Pollutant contained in the pore water and pore water that stifled cathode 2 is enriched with.
The anti-blocking cathode 2 of the water guide insulation is made of insulating layer 2-1, the conductive drainage blanket 2-2 and anti-blocking layer 2-3 thoroughly of capillary,
Insulating layer 2-1 is located at outside the conductive drainage blanket 2-2 thoroughly of capillary, for limiting range to be repaired, completely cuts off untreated bed mud, improves electricity
It can utilization efficiency；Capillary water guide chimney filter 2-2-1, conductive material 2-2-2 and metal is distributed in cloth in the conductive drainage blanket 2-2 thoroughly of capillary
Conducting wire 2-2-3, capillary water guide chimney filter 2-2-1 are used for guide pore water and cathodic protection liquid, and conductive material 2-2-2 is led by metal
Line 2-2-3 connection power supply 11, conductive material 2-2-2 can be made of graphite；Anti- blocking layer 2-3 is located at the conductive drainage blanket 2-2 thoroughly of capillary
Inside, can be used filter cloth or permeable cloth is made, for prevent sediment particles intrusion water guide insulate anti-blocking cathode 2 capillary water guide filter
Pipe 2-2-1.
The handle 5 includes superposed grip part and connect the inserted link extended downwardly with grip part, inserted link bottom and
Pore water collects 1 bottom outside of ring and is connected, and near cathodic protection liquid release ring 4, slightly above cathodic protection liquid is released for holding area
Ring 4 is put, handle 5, which is adopted, to be made from an insulative material.The handle 5, which is used to pore water collecting ring 1, is inserted into target sediment layer.
It is detachable perforation rigid insulation pipe that cathodic protection liquid, which discharges ring 4, is located at pore water and collects 1 top of ring, cathode
It is annulus tubular structure that protection liquid release ring 4 and pore water, which collect ring 1, and the two is connected by the water guide anti-blocking cathode 2 that insulate, hole
Water is collected after ring 1 is inserted into target sediment layer and collects ring 1 with the anti-blocking cathode 2 of water guide insulation, pore water and form hollow circuit cylinder barrel structure,
Inert anode 3 is located in the middle part of cylindrical drum, i.e., inert anode 3 is surround by the water guide anti-blocking cathode 2 that insulate, and water guide insulate anti-blocking cathode 2
For the side wall of the hollow circuit cylinder cylinder.Cathodic protection liquid discharges ring 4 and is insulated the capillary water guide chimney filter 2- of anti-blocking cathode 2 by water guide
2-1 collects ring 1 with pore water and is connected to.Capillary water guide chimney filter 2-2-1 both can be can also be used to release cathode and be protected with guide pore water
Protect liquid.The lower section of cathodic protection liquid release ring 4 is provided with aperture 4-1, for access water guide insulate anti-blocking cathode 2 capillary it is conductive thoroughly
Drainage blanket 2-2, cathodic protection liquid release ring 4 store cathodic protection liquid by water guide insulate anti-blocking cathode 2 capillary water guide filter
Pipe 2-2-1 discharges into water guide and insulate anti-blocking cathode 2, and for dissolving, water guide insulate the fouling on anti-blocking 2 surface of cathode and activation is released
Put the pollutant of cathodic region enrichment.
Pore water collects ring 1 and cathodic protection liquid release ring 4 passes through conduit 6 (such as rubber guide hose) and peristaltic pump 9
Connection, peristaltic pump 9 are connected to by conduit with pore water storage pool 7 and cathodic protection liquid storage pool 10.
Under electric field action, pore water and its contained the pollutant anti-blocking cathode 2 that insulate from inert anode 3 to water guide migrate richness
Collection collects the pore water stored in ring 1 and its contained pollution by 9 pump drainage pore water of peristaltic pump when handling after a certain period of time
Object.Specifically, pore water, which collects the pore water that ring 1 stores, is pumped into pore water storage pool 7, pore water by conduit 6 by peristaltic pump 9
The water inlet end of storage pool 7 is equipped with pH sensor 8, insulate the pore water pH value of anti-blocking 2 guide of cathode for monitoring water guide.To big
For most heavy metals, alkaline environment will promote Ca, Mg etc. in the conductive drainage blanket 2-2 surface scale thoroughly of capillary, while can also lead
It causes to migrate the heavy metal contaminants to insulate near anti-blocking cathode 2 to water guide from inert anode 3 and forms precipitating.Therefore, work as pore water
When pH value is weakly acidic or alkaline, it is initially added into cathodic protection liquid.PH sensor 8 and peristaltic pump 9 and programmable controller (PLC)
12 connections.
Cathodic protection liquid storage pool 10 is for storing cathodic protection liquid (such as citric acid, oxalic acid, FeCl3Deng), cathode is protected
The organic acid solns such as the citric acid that liquid is soil environment friendly are protected, according to the ph sensor 8 monitoring data, by PLC technology
Device (PLC) 12 is opened by control peristaltic pump 9, and peristaltic pump 9 protects cathodic protection liquid in cathodic protection liquid storage pool 10 to cathode
Shield liquid adds the addition of ring 4；When water guide insulate the pore water pH value of anti-blocking 2 guide of cathode return acidity after, programmable controller
(PLC) it 12 is closed by control peristaltic pump 9, stops supplement cathodic protection liquid.
Power supply 11 and the anti-blocking cathode 2 of water guide insulation, inert anode 3, peristaltic pump 9, programmable controller (PLC) 12 and pH are passed
Sensor 8 is connected, and on the one hand provides electro reclamation electric power for inert anode 3 and the anti-blocking cathode 2 of water guide insulation, pore water is promoted to move
It moves, separated from contaminants；On the other hand, power supply 11 is connected with pH sensor 8, peristaltic pump 9 and programmable controller (PLC) 12, is
Pore water guide, pH monitoring, the addition of cathodic protection liquid provide electric power support.
As shown in figure 3, the embodiment of the present invention, which also provides the bicyclic vertical self-cleaning type dehydrated in situ of one kind, subtracts dirty electro reclamation
Method uses above-mentioned apparatus to carry out, and described method includes following steps:
It powers Step 1: opening power supply 11 to the anti-blocking cathode 2 of water guide insulation and inert anode 3, under electric field action, bed mud
Pore water and its contained contaminant transportation to water guide insulate anti-blocking cathode 2, and water insulate the capillary water guide chimney filter 2- in anti-blocking cathode 2
Pore water guide to pore water is collected ring 1 and stored by 2-1, and then programmable controller 12 controls peristaltic pump 9 for pore water
The pore water collected in ring 1 is pumped into pore water storage pool 7；
Step 2: 8 real-time monitoring of pH sensor is discharged into the pore water pH value in pore water storage pool 7, when pore water pH value
When weakly acidic or alkaline, peristaltic pump 9 is controlled by programmable controller 12 and is acted, by the cathode in cathodic protection liquid storage pool 10
Protection liquid is added to cathodic protection liquid release ring 4, and the cathodic protection liquid in cathodic protection liquid release ring 4 is insulated anti-blocking by water guide
The capillary water guide chimney filter 2-2-1 of cathode 2 discharges into the anti-blocking cathode 2 of water guide insulation, for dissolving anti-blocking 2 table of cathode of water guide insulation
The fouling in face and the pollutant of activation release cathodic region enrichment, after pore water pH value returns acidity, programmable controller 12 is logical
The closing of control peristaltic pump 9 is crossed, supplement cathodic protection liquid is stopped.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Belong to those skilled in the art in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, all answers
It is included within the scope of the present invention.
Claims (10)
1. a kind of bicyclic vertical self-cleaning type dehydrated in situ subtracts dirty electro reclamation device, it is characterised in that: collected including pore water
Ring (1), cathodic protection liquid release ring (4), the anti-blocking cathode (2) of water guide insulation, inert anode (3), cathodic protection liquid storage pool
(10), pore water storage pool (7), pH sensor (8), peristaltic pump (9), programmable controller (12)；Cathodic protection liquid discharges ring
(4) it is located at pore water and collects ring (1) top, cathodic protection liquid discharges ring (4) and insulated anti-blocking cathode (2) and pore water by water guide
Collection ring (1) connection, the anti-blocking cathode (2) of water insulation are arranged around inert anode (3), are equipped with hair in the anti-blocking cathode (2) of water insulation
Thin water guide chimney filter (2-2-1), cathodic protection liquid discharge ring (4) and collect ring (1) by capillary water guide chimney filter (2-2-1) and pore water
Connection, capillary water guide chimney filter (2-2-1) are used to pore water guide to pore water collecting ring (1), and pore water collects ring (1) and yin
Pole protection liquid release ring (4) connect by conduit with peristaltic pump (9), peristaltic pump (9) pass through conduit and pore water storage pool (7) and
Cathodic protection liquid storage pool (10) connection；PH sensor (8) are installed, for monitoring water guide insulation in pore water storage pool (7)
The pore water pH value of anti-blocking cathode (2) guide, pH sensor (8) and peristaltic pump (9) connect with programmable controller (12), can compile
Pore water pH value control peristaltic pump (9) of the range controller (12) for (8) according to the ph sensor monitoring is acted cathodic protection liquid
The cathodic protection liquid of storage pool (10) is added to cathodic protection liquid release ring (4), and cathodic protection liquid, which discharges the cathode in ring (4), to be protected
Shield liquid discharges into the anti-blocking cathode (2) of water guide insulation by capillary water guide chimney filter (2-2-1).
2. bicyclic vertical self-cleaning type dehydrated in situ as described in claim 1 subtracts dirty electro reclamation device, it is characterised in that: also
Including insulating anti-blocking cathode (2), inert anode (3), peristaltic pump (9), programmable controller (12) and pH sensor (8) with water guide
The power supply (11) of connection.
3. bicyclic vertical self-cleaning type dehydrated in situ as described in claim 1 subtracts dirty electro reclamation device, it is characterised in that: institute
It states cathodic protection liquid release ring (4) and pore water collection ring (1) is annulus tubular structure, it is logical that cathodic protection liquid discharges ring (4)
It crosses the anti-blocking cathode (2) of water guide insulation to connect to form hollow circuit cylinder barrel structure with pore water collection ring (1), inert anode (3) is by leading
Water insulate anti-blocking cathode (2) around in the middle part of the hollow circuit cylinder cylinder.
4. bicyclic vertical self-cleaning type dehydrated in situ as described in claim 1 subtracts dirty electro reclamation device, it is characterised in that: institute
It states the anti-blocking cathode (2) of water guide insulation to be made of insulating layer (2-1), capillary conductive drainage blanket (2-2) and anti-blocking layer (2-3) thoroughly, absolutely
Edge layer (2-1) is located on the outside of the conductive drainage blanket (2-1) thoroughly of capillary, for limiting range to be repaired, completely cuts off untreated bed mud, capillary
Capillary water guide chimney filter (2-2-1), conductive material (2-2-2) and plain conductor (2-2- is distributed in cloth in conductive drainage blanket (2-2) thoroughly
3), capillary water guide chimney filter (2-2-1) is used for guide pore water and cathodic protection liquid, and conductive material (2-2-2) passes through plain conductor
(2-2-3) connects power supply (11), and anti-blocking layer (2-3) is located on the inside of the conductive drainage blanket (2-2) thoroughly of capillary, for preventing sediment particles
Invade the capillary water guide chimney filter (2-2-1) of the anti-blocking cathode (2) of water guide insulation.
5. bicyclic vertical self-cleaning type dehydrated in situ as claimed in claim 4 subtracts dirty electro reclamation device, it is characterised in that: institute
Anti- blocking layer (2-3) is stated to be made of stainless steel filtering net or permeable cloth.
6. bicyclic vertical self-cleaning type dehydrated in situ as described in claim 1 subtracts dirty electro reclamation device, it is characterised in that: also
Including the handle (5) for pore water to be collected to ring (1) insertion target sediment layer.
7. bicyclic vertical self-cleaning type dehydrated in situ as claimed in claim 6 subtracts dirty electro reclamation device, it is characterised in that: institute
It states handle (5) to include superposed grip part and connect the inserted link extended downwardly with grip part, inserted link bottom and pore water are received
Collect ring (1) bottom outside to be connected, holding area is near cathodic protection liquid release ring (4), and slightly above cathodic protection liquid discharges ring
(4)。
8. bicyclic vertical self-cleaning type dehydrated in situ as claimed in claim 4 subtracts dirty electro reclamation device, it is characterised in that: institute
Stating cathodic protection liquid release ring (4) is detachable perforation rigid insulation pipe, is provided with below cathodic protection liquid release ring (4) small
Hole (4-1), the conductive drainage blanket (2-2) thoroughly of capillary for accessing the anti-blocking cathode (2) of water guide insulation.
9. bicyclic vertical self-cleaning type dehydrated in situ as described in claim 1 subtracts dirty electro reclamation device, it is characterised in that: institute
State the organic acid soln that cathodic protection liquid is soil environment friendly.
10. a kind of bicyclic vertical self-cleaning type dehydrated in situ subtracts dirty electric repair method, it is characterised in that appoint using in right 1-9
One described device carries out, and described method includes following steps:
It powers Step 1: opening power supply (11) to the anti-blocking cathode (2) of water guide insulation and inert anode (3), under electric field action, bottom
Mud pore water and its contained contaminant transportation to water guide insulate anti-blocking cathode (2), and water insulate the capillary water guide in anti-blocking cathode (2)
Pore water guide to pore water is collected ring (1) and stored by chimney filter (2-2-1), and then programmable controller 12 controls peristaltic pump
(9) pore water is collected into the pore water in ring (1) and is pumped into pore water storage pool (7)；
Step 2: pH sensor (8) real-time monitoring is discharged into the pore water pH value in pore water storage pool (7), when pore water pH value
It, will be in cathodic protection liquid storage pool (10) by programmable controller (12) control peristaltic pump (9) movement when weakly acidic or alkaline
Cathodic protection liquid be added to cathodic protection liquid release ring (4), the cathodic protection liquid in cathodic protection liquid release ring (4) is by leading
The capillary water guide chimney filter (2-2-1) of the anti-blocking cathode (2) of water insulation discharges into the anti-blocking cathode (2) of water guide insulation, leads for dissolving
The fouling on anti-blocking cathode (2) surface of water insulation and the pollutant of activation release cathodic region enrichment, when pore water pH value returns acidity
Afterwards, programmable controller (12) is closed by control peristaltic pump (9), stops supplement cathodic protection liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742931.1A CN110434166B (en) | 2019-08-13 | 2019-08-13 | Double-ring vertical self-cleaning type in-situ dehydration pollution-reduction electric repair device and method |
Applications Claiming Priority (1)
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| CN110681693A (en) * | 2019-11-27 | 2020-01-14 | 唐君 | Soil remediation device for treating heavy metal pollutants |
| CN113198792A (en) * | 2021-05-12 | 2021-08-03 | 佛山市顺德区美的饮水机制造有限公司 | Electrode cleaning device for household electrical appliance |
| WO2024041588A1 (en) * | 2022-08-24 | 2024-02-29 | 长江水利委员会长江科学院 | In-situ electric layered remediation device and method for precise positioning of sediment remediation depth |
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