CN105800891B - The sewage sludge dewatering that electro-osmosis is coupled with mechanism filter-pressing - Google Patents
The sewage sludge dewatering that electro-osmosis is coupled with mechanism filter-pressing Download PDFInfo
- Publication number
- CN105800891B CN105800891B CN201610315491.8A CN201610315491A CN105800891B CN 105800891 B CN105800891 B CN 105800891B CN 201610315491 A CN201610315491 A CN 201610315491A CN 105800891 B CN105800891 B CN 105800891B
- Authority
- CN
- China
- Prior art keywords
- filter
- pressing
- electro
- plate
- osmosis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
-
- 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
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses the sewage sludge dewaterings that a kind of electro-osmosis is coupled with mechanism filter-pressing, comprising the following steps:The preliminary mechanical filter-press dehydration stage: sewage sludge enters in primary filter-press dehydration device, and preliminary mechanical filter-press dehydration is realized in primary filter-press dehydration device；Electro-osmosis and mechanism filter-pressing couple the water smoking: the anode plate and cathode plate of electro-osmosis are set in coupling dehydration tube body, it is powered using anode plate and cathode plate of the DC power supply to electro-osmosis, anode plate and cathode plate constitute filters pressing chamber with dehydration cylinder is coupled, while realizing electroosmotic dewatering, keep to the mechanism filter-pressing between anode plate and cathode plate；The high-pressure machinery filter-press dehydration stage: the moisture percentage in sewage sludge of anode plate is low, disconnects DC power supply at this time, stops electroosmotic dewatering, and increase the pressure between anode plate and cathode plate, realizes high-pressure machinery filter-press dehydration.Using the present invention, the increase of anode layer sludge resistance is slowly, dehydrating effect is good, sludge thickness direction porous media is uniform.
Description
Technical field
The present invention relates to sewage sludge process field, Sewage that specifically a kind of electro-osmosis is coupled with mechanism filter-pressing
Mud dewatering.
Background technique
Sludge high-moisture percentage is to restrict the bottleneck of specific resistance to filtration, and the high sludge of moisture content is not only bulky, and
And contained a large amount of organic matters, heavy metal and harmful microorganism, it is easy corruption or can be discharged into environment, cause secondary pollution, it is right
It is all adversely affected in the subsequent landfill of sludge, burning, resource utilization etc..Therefore, deeply dehydrating sludge minimizing is
Treatment of Sludge primary and foremost purpose, minimizing are the bases for realizing sludge other " three change ", and sludge is more dry, and subsequent processing disposition more has
Benefit.
Electroosmotic dewatering technology is utilized a kind of special double electrical layers existing for sludge and realizes dehydration.Sludge sludge
Grain is negatively charged, and hydrone is positively charged, and under electric field force effect, electronegative mud granule is moved toward anode plate, and positively charged
Hydrone is moved toward cathode plate.As a kind of novel, green, efficient solid-liquid separation technique, electroosmotic dewatering technology is due to tool
Have the advantages that good dewatering, flexibility are high, pollution-free, controllability is strong, receives significant attention in recent years, more and more
Researcher is applied in sludge dewatering, to achieve the purpose that carry out deep dehydration to sludge.
Compared with existing deeply dehydrating sludge technology (heat drying, chemical conditioning+high-pressure compressing method etc.), electroosmotic dewatering
Technology has the advantages that a series of uniquenesses, specific manifestation are as follows: good dehydrating effect, during electroosmotic dewatering, in electrochemistry
Under reagentia, for sludge cell by electro photoluminescence, electrolysis water directional strength, which moves, generates Brownian movement, intracellular temperature raising,
Pressure increases, so that membranolysis, water outflow in part film, electroosmotic dewatering, which can remove tradition machinery dehydration, to be taken off
The partial moisture removed, by electroosmotic dewatering, the moisture content of sludge can be reduced to 60% or less；Have compared with heat drying certain
Power savings advantages, reduce sludge deep processing desiccation expense；Only to sludge reduction be dehydrated, do not change sludge property,
Ingredient does not increase new substance, on subsequent any sludge treating method without influence；Treatment process cleaning, it is without secondary pollution.
However, the sludge dewatering technology that electroosmotic dewatering technology is emerging as one, is mainly asked there is also following at present
Topic: (1) the final moisture content of dehydrated sludge still has 50%-60%, is difficult breakthrough 50%, it is difficult to which reaching sludge electroosmotic, high mass dryness fraction is de- thoroughly
The technical effect of water；(2) during electro-osmosis, the moisture content of sludge is quickly reduced near anode, and electrochemical reaction gas
Generation and sludge cake in there is crack, contact area between sludge cake and electrode plate reduces, and sludge resistance is caused to increase
Greatly, electric current declines, and dehydrating effect is deteriorated；(3) in dehydration, electric field generation electric current has electric energy and is converted into thermal energy, makes sludge
Temperature increases, and there are in fact energy consumption problem bigger than normal；(4) porous media of mud cake in a thickness direction is uneven, anode layer
Moisture percentage in sewage sludge is lower, and hydrone accumulates in cathode layer and causes moisture percentage in sewage sludge near cathode plate higher.
Currently also having reduces influence of the sludge drying to dehydrating effect using alternating electric field, is asked with partially solving above-mentioned technology
Topic.Alternating electric field be exactly electro-osmosis after a certain period of time, electrode reversal connection, inverse current flow through it is material bed, can reduce it is material bed in
Resistance and the electrochemical reaction for mitigating electrode, while moisture reflux being promoted to solve the problems, such as current anode layer sludge drying.By right
Soybean residue experiment discovery, is reversely connected using electrode than continuous work, electro-osmosis flow can be improved 40% or more.It is carried out with white clay
Exchange experiment, current ratio direct current final dewatering amount increase, but when frequency is higher, dehydration efficiency reduces instead, using alternating electric field
Energy consumption is higher, and frequency is more difficult to control.As it can be seen that can not fundamentally solve above-mentioned electroosmotic dewatering technology using alternating electric field
?.
Summary of the invention
In view of this, the present invention leads to dehydrating effect for the above-mentioned quick desiccation of anode layer sludge of the existing technology
It is slow, de- to provide a kind of anode layer sludge resistance increase for the problem that difference, energy consumption are high, anode layer cathode layer moisture content is unequal
The sewage sludge dewatering that water effect is good, the uniform electro-osmosis of sludge thickness direction porous media is coupled with mechanism filter-pressing.
The technical solution of the invention is as follows, provides a kind of electro-osmosis of following steps and Sewage that mechanism filter-pressing couples
Mud dewatering, comprising the following steps:
The preliminary mechanical filter-press dehydration stage: sewage sludge enters in primary filter-press dehydration device, in primary filter-press dehydration
Preliminary mechanical filter-press dehydration is realized in device, and moisture percentage in sewage sludge is down to 75% ~ 80%；
Electro-osmosis and mechanism filter-pressing couple the water smoking: through stepAfter processing, the anode plate and cathode plate of electro-osmosis
Be set in coupling dehydration tube body, powered using DC power supply to the anode plate and cathode plate of electro-osmosis, the anode plate and
Cathode plate constitutes filters pressing chamber with dehydration cylinder is coupled as the pressing mechanism of mechanism filter-pressing, while realizing electroosmotic dewatering,
It keeps to the mechanism filter-pressing between anode plate and cathode plate, so that two-plate contacts well with sludge；
The high-pressure machinery filter-press dehydration stage: through stepAfter processing, the moisture percentage in sewage sludge of anode plate is low, sludge drying,
DC power supply is disconnected at this time, stops electroosmotic dewatering, and increase the pressure between anode plate and cathode plate, realizes high-pressure machinery pressure
Filter dehydration, sludge water content is toward cathode plate and anode plate two-way flow, so that moisture content is uniform between two-plate.
Above step is used, compared with prior art, the present invention having the advantage that by using mechanism filter-pressing and electric osmose
It combines thoroughly, three water smokings is formed, and in the pressure of control of different water smokings mechanism filter-pressing, in the coupling water smoking
In, electrode plate and sludge closeness of contact are increased, resistance is reduced, electric current increases, and dehydrating effect is more preferable；It is de- in mechanism filter-pressing
When water and electroosmotic dewatering act on simultaneously, centainly it is in close contact as long as guaranteeing that pole plate and sludge have using low pressure, at this time water
Dividing is moved from anode plate toward cathode plate, and with the progress of dehydration, the exsiccation of anode layer sludge causes resistance to increase electric current simultaneously
Reduce, so that the driving force of electroosmotic dewatering reduces, if continued down, resistance will become very large and electric field is driven
Power now it is necessary to which partial moisture is enabled to flow back into anode layer, stops power supply at this time, leads to almost without causing dehydration to stop
Excessively high low pressure regulating device is switched to high-pressure machinery high pressure mode, so that moisture forced refluence reduces sludge resistance to anode layer
Increase electric current, sludge thickness direction porous media is uniform, improves next round electro-osmosis driving force.
Preferably, the mechanism filter-pressing provides power by hydraulic device, adjusted by high-low pressure regulating system hydraulic
It is hydraulic provided by device, to realize the switching of high-low pressure, in stepIt is middle to provide power using low pressure, in stepIn adopt
Power is provided with high pressure.High-low pressure regulating system is used for the adjusting of hydraulic power, convenient for the switching of power, makes that it is suitable for phases
The water smoking answered.
Preferably, the sewage sludge dewatering completes step using alternately pressure swing type dehydration modeAfterwards, two
Moisture content uniformly becomes uniformly, sequentially to enter step again at this time between pole plateWith, so on circulate until reaching expected
Moisture percentage in sewage sludge requirement.Due to using alternately pressure swing type dehydration mode, stepSo that anode plate sludge is by moisturizing again, by
The dewatered sludge of beginning becomes wet mud, and can be restored to electro-osmosis and mechanism filter-pressing coupling water smoking, at this time high-low pressure
Regulating system is switched to low pressure, is dehydrated jointly with electro-osmosis.
Preferably, in stepIn, sucker is provided at cathode plate, by pushing sucker deformation, so that sucker produces
The restoring force of raw suck-back, with from cathode plate place adsorption moisture.According to the characteristic of electro-osmosis, more water have been gathered at cathode plate
Point, since electric field power drive cathode plate moisture is weaker, in order to accelerate the moisture velocity of discharge and discharge rate near cathode plate, in cathode
Certain vacuum degree is generated at plate, certain suction is applied to sludge water content at cathode plate, forms electric field force and vacuum filter is dual
Dehydrating effect.
Preferably, the sucker is hemispherical dome structure made of elastic material, outer ring sealing is fixed on cathode plate
Outer edge on, the middle and lower part of sucker is connected with thrust mechanism, and sucker lower end is connected with drainpipe and electromagnetic switch, electromagnetic switch
Control the opening and closing of drainpipe.Sucker deformation is pushed by thrust mechanism, sucker generates the restoring force of vacuum, sucker and cathode plate shape
It can produce the chamber of vacuum at one, the moisture that restoring force gathers cathode plate is sucked out, and opens electromagnetic switch, and moisture is from row
It is discharged in water pipe.
Detailed description of the invention
Fig. 1 is the flow diagram for the sewage sludge dewatering that electro-osmosis of the present invention is coupled with mechanism filter-pressing.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
The present invention covers any substitution made on the essence and scope of the present invention, modification, equivalent method and scheme.For
So that the public is had thorough understanding to the present invention, is described in detail concrete details in the following preferred embodiment of the present invention, and
The present invention can also be understood completely in description without these details for a person skilled in the art.In addition, the attached drawing of the present invention
In be explained herein not being drawn to scale accurately completely for the needs of signal.
As shown in Figure 1, the sewage sludge dewatering that a kind of electro-osmosis of the invention is coupled with mechanism filter-pressing, including it is following
Step:
The preliminary mechanical filter-press dehydration stage: sewage sludge enters in primary filter-press dehydration device, in primary filter-press dehydration
Preliminary mechanical filter-press dehydration is realized in device, and moisture percentage in sewage sludge is down to 75% ~ 80%；It, can be largely in the water smoking
Sewage sludge minimizing is realized on ground, and in this stage, using the mechanism filter-pressing of mesolow, pressure is generally 0.1-0.5MPa；
Electro-osmosis and mechanism filter-pressing couple the water smoking: through stepAfter processing, the anode plate and cathode plate of electro-osmosis
Be set in coupling dehydration tube body, powered using DC power supply to the anode plate and cathode plate of electro-osmosis, the anode plate and
Cathode plate constitutes filters pressing chamber with dehydration cylinder is coupled as the pressing mechanism of mechanism filter-pressing, while realizing electroosmotic dewatering,
It keeps to the mechanism filter-pressing between anode plate and cathode plate, so that two-plate contacts well with sludge.DC power supply positive and negative anodes point
It is not electrically connected with anode plate and cathode plate, supply voltage is determined according to mud handling capacity size (cake thickness), voltage is set
Gradient is 10-30V/cm.The step for processing after moisture percentage in sewage sludge can reach 50%-60%
Filter cloth is enclosed on anode plate and cathode plate, and (its material is not limited to traditional cloth, all materials that can be realized filtering
Material is regarded as filter cloth), the filter cloth for wrapping up cathode plate is made of stainless steel material, is conducive to improve electroosmotic dewatering effect.
Moisture is filtered out from the filter cloth of anode plate and cathode plate.
In stepIn, the pressure of mechanism filter-pressing is variable range, with the progress of filters pressing, anode plate and cathode plate it
Between sludge quantity reduce, need further to pressurize, the pressure in the stage be 0.05-0.5MPa.
The high-pressure machinery filter-press dehydration stage: through stepAfter processing, the moisture percentage in sewage sludge of anode plate is low, sludge drying,
DC power supply is disconnected at this time, stops electroosmotic dewatering, and increase the pressure between anode plate and cathode plate, realizes high-pressure machinery pressure
Filter dehydration, sludge water content is toward cathode plate and anode plate two-way flow, so that moisture content is uniform between two-plate.The water smoking is height
Press-dehydrating, the pressure for being supplied to sludge is 3-5MPa.
In above-mentioned steps, it can be realized by corresponding device, and according to the description of above step, this field is common
Technical staff knows the embodiment that can satisfy the related device basic structure that the present invention uses.
The mechanism filter-pressing provides power by hydraulic device, adjusts hydraulic device by high-low pressure regulating system and is provided
It is hydraulic, to realize the switching of high-low pressure, in stepIt is middle to provide power using low pressure, in stepIt is middle to be provided using high pressure
Power.High-low pressure regulating system is used for the adjusting of hydraulic power, convenient for the switching of power, makes that it is suitable for being dehydrated rank accordingly
Section.High-low pressure regulating system realizes that there are many ways of realization, herein by components such as motor, hydraulic pump, hydraulic valve and pipelines
Just do not have been illustrated.
The sewage sludge dewatering completes step using alternately pressure swing type dehydration modeAfterwards, contain between two-plate
Water rate uniformly becomes uniformly, sequentially to enter step again at this timeWith, aqueous up to reaching expected sludge so on circulate
Rate requirement.Moisture percentage in sewage sludge reaches 50% or less.Alternately pressure swing type dehydration mode refers to stepWithCoupling dehydration and high
The alternating of filter-press dehydration is pressed, pressure needed for the two is different, therefore referred to as transformation.Above procedure can obviously be illustrated in Fig. 1, figure
Although in step in 1After increase a step, but this increased step actually step, therefore, both it is considered that being to revert to step
Suddenly, also can refer to mostly a step and stepIdentical step, essence are consistent.For due to using alternately pressure swing type
Dehydration mode, stepSo that anode plate sludge becomes wet mud by moisturizing again, from the dewatered sludge started, and can restore again
The water smoking is coupled to electro-osmosis and mechanism filter-pressing, high-low pressure regulating system is switched to low pressure at this time, is dehydrated jointly with electro-osmosis.
In stepIn, sucker is provided at cathode plate, by pushing sucker deformation, so that sucker generates returning for suck-back
Multiple power, with from cathode plate place adsorption moisture.Its principle is similar to " water pulls out son ".According to the characteristic of electro-osmosis, gather at cathode plate
More moisture, since electric field power drive cathode plate moisture is weaker, in order to accelerate the moisture velocity of discharge and row near cathode plate
Output generates certain vacuum degree at cathode plate, applies certain suction to sludge water content at cathode plate, forms electric field force and true
Sky filtering double dehydration effect.
The sucker is hemispherical dome structure made of elastic material, and outer ring seals the outer edge for being fixed on cathode plate
On, the middle and lower part of sucker is connected with thrust mechanism, and sucker lower end is connected with drainpipe and electromagnetic switch, electromagnetic switch control draining
The opening and closing of pipe.Sucker deformation is pushed by thrust mechanism, sucker generates the restoring force of vacuum, and sucker and cathode plate form one can
The chamber of vacuum is generated, the moisture that restoring force gathers cathode plate is sucked out, and opens electromagnetic switch, and moisture is arranged from drainpipe
Out.
Only the preferred embodiment of the present invention has been described above, but is not to be construed as limiting the scope of the invention.This
Invention is not only limited to above embodiments, and specific structure is allowed to vary.In short, all guarantors in independent claims of the present invention
Made various change is within the scope of the invention in shield range.
Claims (4)
1. the sewage sludge dewatering that a kind of electro-osmosis is coupled with mechanism filter-pressing, it is characterised in that: the following steps are included:
1. the preliminary mechanical filter-press dehydration stage: sewage sludge enters in primary filter-press dehydration device, in primary filter-press dehydration device
Interior realization preliminary mechanical filter-press dehydration, is down to 75%~80% for moisture percentage in sewage sludge, in this stage, using the machinery of mesolow
Filters pressing, pressure 0.1-0.5MPa；
2. electro-osmosis and mechanism filter-pressing couple the water smoking: after 1. step is handled, the anode plate and cathode plate of electro-osmosis are arranged
In in coupling dehydration tube body, powered using anode plate and cathode plate of the DC power supply to electro-osmosis, the anode plate and cathode
Plate constitutes filters pressing chamber with dehydration cylinder is coupled as the pressing mechanism of mechanism filter-pressing, while realizing electroosmotic dewatering, keeps
To the mechanism filter-pressing between anode plate and cathode plate, so that two-plate contacts well with sludge, the pressure in the stage is 0.05-
0.5MPa；
3. the high-pressure machinery filter-press dehydration stage: after 2. step is handled, the moisture percentage in sewage sludge of anode plate is low, sludge drying, at this time
DC power supply is disconnected, stops electroosmotic dewatering, and increase the pressure between anode plate and cathode plate, realizes that high-pressure machinery filters pressing is de-
Water, sludge water content is toward cathode plate and anode plate two-way flow, so that moisture content is uniform between two-plate, which is high pressure-off
Water, the pressure for being supplied to sludge is 3-5MPa；
The sewage sludge dewatering is using alternately pressure swing type dehydration mode, after completing step 3., moisture content between two-plate
2. and 3. uniformly become uniformly, sequentially to enter step again at this time, be wanted so on circulate until reaching expected moisture percentage in sewage sludge
It asks.
2. the sewage sludge dewatering that electro-osmosis according to claim 1 is coupled with mechanism filter-pressing, it is characterised in that: institute
The mechanism filter-pressing stated provides power by hydraulic device, by hydraulic provided by high-low pressure regulating system adjusting hydraulic device, with
The switching for realizing high-low pressure, it is 2. middle using low pressure offer power in step, it is 3. middle using high pressure offer power in step.
3. the sewage sludge dewatering that electro-osmosis according to claim 1 is coupled with mechanism filter-pressing, it is characterised in that:
Step 2. in, sucker is provided at cathode plate, by push sucker deformation so that sucker generate suck-back restoring force, with from
Adsorption moisture at cathode plate.
4. the sewage sludge dewatering that electro-osmosis according to claim 3 is coupled with mechanism filter-pressing, it is characterised in that: institute
The sucker stated is hemispherical dome structure made of elastic material, and outer ring sealing is fixed on the outer edge of cathode plate, in sucker
Lower part is connected with thrust mechanism, and sucker lower end is connected with drainpipe and electromagnetic switch, and electromagnetic switch controls the opening and closing of drainpipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315491.8A CN105800891B (en) | 2016-05-15 | 2016-05-15 | The sewage sludge dewatering that electro-osmosis is coupled with mechanism filter-pressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315491.8A CN105800891B (en) | 2016-05-15 | 2016-05-15 | The sewage sludge dewatering that electro-osmosis is coupled with mechanism filter-pressing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105800891A CN105800891A (en) | 2016-07-27 |
| CN105800891B true CN105800891B (en) | 2019-03-26 |
Family
ID=56455959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610315491.8A Expired - Fee Related CN105800891B (en) | 2016-05-15 | 2016-05-15 | The sewage sludge dewatering that electro-osmosis is coupled with mechanism filter-pressing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105800891B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109485235A (en) * | 2018-12-29 | 2019-03-19 | 启迪桑德环境资源股份有限公司 | A kind of saturating Bidirectional water outlet of sludge electroosmotic and double it is electrically coupled high level cadre's dewatering system and method |
| CN110240388B (en) * | 2019-06-06 | 2023-09-12 | 河南工程学院 | Exchange electrode electroosmosis sludge dewatering system and method based on voltage grading detection |
| CN111138050A (en) * | 2020-01-08 | 2020-05-12 | 肇庆学院 | Electroosmosis sludge dewatering board |
| CN112851058A (en) * | 2020-12-24 | 2021-05-28 | 大地绿源环保科技(北京)有限公司 | Alternating-current voltage auxiliary belt type filter pressing equipment and sludge high-dryness dewatering method |
| CN113860702B (en) * | 2021-05-12 | 2023-09-19 | 中国计量大学 | Multi-field coupling automatic sewage sludge dehydration method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH054100A (en) * | 1991-06-26 | 1993-01-14 | Shinko Pantec Co Ltd | Electroosmosis dehydrating method for sludge |
| CN103803775A (en) * | 2012-11-09 | 2014-05-21 | 天津越清环保科技有限公司 | High dryness dewatering method and equipment for high moisture content sludge |
| CN204111556U (en) * | 2013-11-19 | 2015-01-21 | 北京亿维德曼科技发展有限公司 | A kind of dewatering system for municipal sludge deep dehydration |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100542652C (en) * | 2006-10-30 | 2009-09-23 | 天津大学 | Dewatering technology of mud and device |
-
2016
- 2016-05-15 CN CN201610315491.8A patent/CN105800891B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH054100A (en) * | 1991-06-26 | 1993-01-14 | Shinko Pantec Co Ltd | Electroosmosis dehydrating method for sludge |
| CN103803775A (en) * | 2012-11-09 | 2014-05-21 | 天津越清环保科技有限公司 | High dryness dewatering method and equipment for high moisture content sludge |
| CN204111556U (en) * | 2013-11-19 | 2015-01-21 | 北京亿维德曼科技发展有限公司 | A kind of dewatering system for municipal sludge deep dehydration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105800891A (en) | 2016-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106396303B (en) | The sewage sludge dehydration device that electro-osmosis is coupled with mechanism filter-pressing | |
| CN105800891B (en) | The sewage sludge dewatering that electro-osmosis is coupled with mechanism filter-pressing | |
| CN108101340B (en) | High-dryness sewage sludge dewatering method with double effects of mechanical squeezing and air flow carrying | |
| CN105923968B (en) | Sewage sludge dehydration device based on oxidation electro-osmosis mechanism filter-pressing collaboration | |
| CN105923952B (en) | Sewage sludge electro-osmosis filters pressing cooperates with dehydration device | |
| CN105923977B (en) | The sewage sludge dehydration device of electro-osmosis filters pressing coupling | |
| CN105859103B (en) | The sewage sludge dehydration device coupled with mechanism filter-pressing based on electro-osmosis | |
| CN105923967B (en) | Sewage sludge aoxidizes electro-osmosis mechanism filter-pressing and cooperates with dehydration device | |
| CN107055984A (en) | A kind of method that high-voltage pulse electrolytic tension filter method deep dehydration handles sludge | |
| CN104671632B (en) | Batch-type electro-osmosis deep dehydration device for sludge and method | |
| CN1948193A (en) | Electric field synergistic mud dewatering method and its device | |
| CN104030543A (en) | Membrane filter plates used for electro-osmosed sludge, membrane filter press and filter press | |
| CN105561645A (en) | Toothed pressure-maintaining filter-pressing method and equipment | |
| CN105967485B (en) | Sewage sludge aoxidizes electro-osmosis mechanism filter-pressing and cooperates with dewatering | |
| CN107381997B (en) | Electroosmosis filter pressing and sludge dewatering cooperated method | |
| CN106830610B (en) | A kind of method of high current electrolysis-high-voltage electrodialysis-high pressure gas filters pressing Combined Treatment sludge | |
| CN102897990A (en) | Direct-current separation plate frame applied to dehydrator or oil removing machine | |
| CN107930200A (en) | Plate compression unit and plate compression device | |
| CN107982970A (en) | The preparation method of plate compression device filter plate and its filtration | |
| CN209890480U (en) | Sludge electroosmosis bidirectional water outlet and double-electric coupling high-dry dehydration system | |
| CN203678133U (en) | Vacuum filter with pressure filtration function | |
| CN113860702B (en) | Multi-field coupling automatic sewage sludge dehydration method | |
| CN109824236A (en) | Ultrasonic wave, electro-osmosis couple mud dewatering method with mechanism filter-pressing | |
| CN104030542B (en) | A kind of filter pressing sludge method of diaphragm filter press | |
| KR100441168B1 (en) | Electro-dewatering system of filter press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181205 Address after: 315470 126 Guangming Road, Simen Town, Yuyao City, Ningbo, Zhejiang Applicant after: CHINA JILIANG UNIVERSITY Address before: 315470 126 Guangming Road, Simen Town, Yuyao City, Ningbo, Zhejiang Applicant before: Rao Binqi |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20190515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |