CN210085229U - Cathode and pressing belt integrated sludge electroosmosis belt type filter pressing device - Google Patents
Cathode and pressing belt integrated sludge electroosmosis belt type filter pressing device Download PDFInfo
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- CN210085229U CN210085229U CN201920614072.3U CN201920614072U CN210085229U CN 210085229 U CN210085229 U CN 210085229U CN 201920614072 U CN201920614072 U CN 201920614072U CN 210085229 U CN210085229 U CN 210085229U
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Abstract
The utility model discloses a negative pole and mud electroosmosis belt filter pressing device who squeezes area integration, squeeze area, positive pole filter belt and anode drum including transmission filter belt, negative pole, be equipped with the electroosmosis on the transmission filter belt and squeeze dehydration station, squeeze dehydration station department at the electroosmosis, the transmission filter belt below is equipped with the negative pole and squeezes the area, and the top of transmission filter belt is equipped with the positive pole filter belt, and positive pole filter belt parcel anode drum forms curved dewatering channel between positive pole filter belt and the transmission filter belt. The sludge is conveyed to an electroosmosis squeezing dehydration station by the transmission filter belt and the anode filter belt, when the dehydration channel is full of the sludge, the transmission filter belt and the anode filter belt stop conveying the sludge, the cathode filter belt operates to compact the sludge, and the anode filter belt, the sludge, the transmission filter belt and the cathode filter belt are in close contact to perform electroosmosis dehydration. The utility model discloses combine together belt filter-pressing technique and mud electroosmosis dehydration technique, there is not the phase transition in the dehydration process, have the energy consumption low, efficient and take up an area of few advantage.
Description
Technical Field
The utility model relates to a sludge treatment technical field, in particular to negative pole and mud electroosmosis belt filter pressing device who squeezes area integration.
Background
Along with the continuous improvement of the urbanization level of China, the discharge amount of various sewage is also increased year by year. In order to solve the problems of sewage discharge and daily increase, a large number of sewage treatment plants are newly built around the country to collect and treat discharged sewage. At present, the process adopted by sewage treatment plants in China is mainly a biological method, and a large amount of excess sludge is generated in the treatment process. According to relevant statistics, the sludge yield of municipal wastewater treatment plants in 2015 in China breaks through 3000 million tons.
The sludge contains a large amount of water and toxic and harmful substances such as pathogenic bacteria, organic pollutants, heavy metals and the like, and if proper treatment and disposal cannot be obtained, secondary pollution can be caused, so that the achievement of sewage treatment is short of one step. The high water content of the sludge can lead the sludge to have large volume, and provide proper propagation conditions for microorganisms such as pathogenic bacteria and the like, so that the sludge is easier to deteriorate, putrefy and stink in the processes of storage, transportation and treatment. Therefore, pretreatment (dehydration, drying and the like) is required before sludge treatment and disposal, so that the volume and the weight of the sludge are reduced as much as possible, the stability of the sludge is increased, and the difficulty and the cost of subsequent transportation and treatment and disposal are reduced.
The belt filter press is a conventional mechanical dewatering device widely used for sludge dewatering at home and abroad for decades, has the advantages of high automation degree, strong treatment capacity, convenient maintenance and management and the like, can be suitable for dewatering various types of sludge, and has no vibration, no noise and safe and reliable operation. However, the water content of the sludge treated by the conventional mechanical dehydration technology such as a belt filter press is 75-85%, and the water content is still high, so that the requirements of sanitary landfill and incineration disposal cannot be met. Therefore, deep dehydration and drying treatments are also required. The sludge deep dehydration and drying technology applied in China at present mainly comprises a high-pressure plate-and-frame filter press, a heat drying device and the like, but has the problems of large occupied area, high energy consumption and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a negative pole and press the mud electroosmosis belt filter pressing device of taking the integration, the device combines electroosmosis dehydration technique and belt filter-pressing technique simultaneously, has to take up an area of little, the energy consumption is low, efficient characteristics.
The technical scheme of the utility model is that: the utility model provides a mud electroosmosis belt filter pressing device of negative pole and squeeze area integration, squeezes area, positive pole filter belt and anode drum including transmission filter belt, negative pole, be equipped with the electroosmosis on the transmission filter belt and squeeze dehydration station, squeeze dehydration station department at the electroosmosis, transmission filter belt below is equipped with the negative pole and squeezes the area, and the top of transmission filter belt is equipped with the positive pole filter belt, and positive pole filter belt parcel anode drum forms curved dewatering channel between positive pole filter belt and the transmission filter belt. The transmission filter belt is used for conveying sludge and filtering filtrate removed from the sludge, the sludge is dehydrated through an electroosmosis dehydration technology and a belt type filter pressing technology after entering a dehydration channel, and the dehydration channel is an arc-shaped channel bent downwards.
The anode filter belt is also provided with a first driving wheel and at least one driven wheel, the first driving wheel drives the anode filter belt to operate, and the anode filter belt forms a circulating operation structure among the first driving wheel, the driven wheel and the anode roller. The first driving wheel is driven by an external power device to rotate, so that the first driving wheel drives the anode filter belt to operate, the anode filter belt applies shearing force and pressure to sludge, and the anode filter belt forms a circulating structure under the auxiliary drive of each driven wheel.
And the cathode pressing belt is provided with a second driving wheel and at least one driven wheel, the second driving wheel drives the cathode pressing belt to operate, and a circulating operation structure is formed between the second driving wheel and the driven wheel. The second driving wheel rotates under the drive of an external power device, so that the second driving wheel drives the cathode pressing belt to operate, the cathode pressing belt applies shearing force to the sludge and provides mechanical pressure required during electroosmosis dehydration, and the cathode pressing belt forms a circulating structure under the auxiliary drive of each driven wheel.
The transmission filter belt is provided with a third driving wheel and at least one driven wheel, the third driving wheel drives the transmission filter belt to operate, the transmission filter belt forms a circulating operation structure between the third driving wheel and the driven wheel, and the cathode pressing belt is tightly attached to the transmission filter belt at an electroosmosis pressing and dewatering station. The third driving wheel is driven by an external power device to rotate, so that the third driving wheel drives the transmission filter belt to operate, the transmission filter belt conveys sludge, and the transmission filter belt forms a circulating structure under the auxiliary drive of each driven wheel.
The cathode pressing belt is characterized by also comprising a power supply box, wherein a positive lead of the power supply box is connected with the anode roller, and a negative lead of the power supply box is connected with the cathode pressing belt. Wherein, the cathode pressing belt is made of a composite material with good conductivity and pressure resistance.
The conveying filter belt is also provided with a feeding position, and a sludge disperser and a sludge distribution roller are sequentially arranged above the conveying filter belt along the sludge conveying direction at the feeding position. Wherein, after the sludge disperser preliminarily disperses the sludge, the sludge is conveyed to the conveying filter belt, and the sludge is further uniformly dispersed by the sludge distributing roller.
The transmission filter belt is also provided with a discharging position, scrapers are arranged on the transmission filter belt and the anode filter belt at the discharging position, and a sludge collecting barrel is arranged below the transmission filter belt. Wherein, the sludge attached to the transmission filter belt and the anode filter belt is scraped off by a scraper when passing through the material discharging position and falls into a sludge collecting barrel to be collected.
The electro-osmosis squeezing dewatering station is characterized in that a filtrate collecting system is further arranged at the electro-osmosis squeezing dewatering station and comprises a plurality of water collecting discs with water outlets, and the water collecting discs collect filtrate separated from the sludge dewatering process and washing liquid flowing out when the filter belt is washed and discharge the filtrate through the water outlets.
The filter belt washing system is further arranged and comprises a plurality of spray heads, the spray heads spray water to wash the transmission filter belt, and after all mud cakes are removed, the filter belt washing system is started to clean the device, so that the device is convenient to use next time.
The working method of the sludge electroosmosis belt type filter pressing device with the cathode and the pressing belt integrated comprises the following steps:
(1) the sludge primarily dispersed by the sludge disperser is conveyed on the conveying filter belt, and the sludge is further uniformly dispersed by the sludge distributing roller;
(2) the transmission filter belt and the anode filter belt convey the sludge to an electroosmosis pressing dehydration station, when the dehydration channel is filled with the sludge, the transmission filter belt and the anode filter belt stop conveying the sludge, the cathode filter belt runs to compact the sludge, and the anode filter belt, the sludge, the transmission filter belt and the cathode filter belt are in close contact;
(3) the cathode pressing belt continues to run, mechanical pressure required during electroosmosis dehydration is maintained, a power supply box is started, and electroosmosis dehydration treatment is carried out on the sludge;
(4) and stopping the operation of the cathode pressing belt, and starting the transmission filter belt and the anode filter belt to convey the dewatered sludge out of the electroosmosis pressing dewatering station.
The application principle of the sludge electroosmosis belt type filter pressing device with the cathode integrated with the pressing belt is that sludge subjected to mechanical dehydration and with the water content of 75% -85% is added into a sludge disperser to be dispersed, the dispersed sludge is conveyed to a feeding position at the front end of the transmission filter belt, the third driving wheel rotates and drives the transmission filter belt to rotate to convey the sludge to an electroosmosis pressing dehydration station, the sludge is further uniformly dispersed through the sludge distributing roller, and the feeding process is completed. The transmission filter belt and the anode filter belt continuously send the sludge which is uniformly dispersed into an electroosmosis squeezing dewatering station, when the sludge is full of an electroosmosis squeezing dewatering area, the transmission filter belt and the anode filter belt stop running, the second driving wheel rotates and drives the cathode squeezing belt to run by means of transmission of the driven wheel, the sludge of the electroosmosis squeezing dewatering station is compacted by utilizing the shearing acting force of the cathode squeezing belt on the sludge, and the anode filter belt, the sludge, the transmission filter belt and the cathode squeezing belt are in tight contact. The shearing action of the cathode pressing belt on the sludge is continued to maintain the mechanical pressure required by electroosmotic dehydration. The positive lead of the power supply box is connected to the anode roller, and the negative lead is connected to the cathode pressing belt. The operation parameters such as mechanical pressure, current, voltage and the like are optimized through computer control, and the dehydration effect with higher efficiency and lower energy consumption is realized. The filtrate of the electroosmotic dehydration of the sludge flows into a filtrate collecting system through a transmission filter belt and a cathode pressing belt and then is subjected to subsequent treatment. The process can reduce the water content of the sludge from 75-85% to 45-60% and only needs 40-60 min. And after the electroosmosis dehydration treatment is finished, stopping the operation of the cathode pressing belt, starting the transmission filter belt and the anode filter belt to enable the dehydrated mud cakes to leave the electroosmosis pressing dehydration station and enter a discharging position, and under the action of a scraper, enabling the mud cakes to fall into a mud collecting barrel from the transmission filter belt and the anode filter belt, and collecting and transporting the mud cakes outwards. And after all the mud cakes are removed, starting a filter belt washing system to clean the filter belt of the device, so that the device is convenient to use next time. And collecting the washed washing liquid by a filtrate collecting system, and then carrying out subsequent treatment.
Compared with the prior art, the utility model, following beneficial effect has:
the sludge electroosmosis belt type filter pressing device integrating the cathode and the pressing belt combines the belt type filter pressing technology with the sludge electroosmosis dehydration technology, realizes the integration of the electroosmosis cathode and the pressing belt, has no phase change in the dehydration process, and has the advantages of low energy consumption, high efficiency and less occupied area. The cathode pressing belt of the utility model adopts a composite material with good conductivity and pressure resistance.
This negative pole and mud electroosmosis belt filter pressing device who squeezes area integration make operating parameter optimization such as mechanical pressure, electric current, voltage through control system, utilize the combined action of filter-pressing and electroosmosis to fall the moisture content of mud from 75% ~ 85% to 45% ~ 60 fast, satisfy the requirement of landfill and burning, the utility model discloses in mud deep dehydration process, required energy consumption is 0.15kW h/(kg water) -0.22 kW h/(kg water), more energy-conserving and high-efficient than conventional mud deep dehydration technique.
Drawings
FIG. 1 is a schematic structural diagram of the sludge electroosmosis belt type filter pressing device with the cathode and the pressing belt integrated.
In the figure, 1 is a sludge disperser, 2 is a sludge distributing roller, 3 is a transmission filter belt, 4 is a power supply box, 5 is an anode filter belt, 6 is an anode roller, 7 is a first driving wheel, 8 is a scraper, 9 is a sludge collecting barrel, 10 is a driven wheel, 11 is a cathode squeezing belt, 12 is a filtrate collecting system, 13 is a filter belt washing system, 14 is a second driving wheel, and 15 is a third driving wheel.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
Examples
The embodiment provides a mud electroosmosis belt filter pressing device of negative pole and squeeze area integration, as shown in figure 1, including transmission filter belt 3, negative pole squeeze area 11, positive pole filter belt 5 and anode roller 6, be equipped with electroosmosis on the transmission filter belt and squeeze dehydration station, squeeze dehydration station department at the electroosmosis, the transmission filter belt below is equipped with negative pole and squeezes the area, the top of transmission filter belt is equipped with the positive pole filter belt, positive pole filter belt parcel anode roller, forms curved dehydration passageway between positive pole filter belt and the transmission filter belt. The transmission filter belt is used for conveying sludge and filtering filtrate removed from the sludge, and the sludge is dehydrated through an electroosmosis dehydration technology and a belt type filter pressing technology after entering a dehydration channel which is an arc-shaped channel bent downwards.
The anode filter belt is also provided with a first driving wheel 7 and at least one driven wheel 10, the first driving wheel drives the anode filter belt to run, and the anode filter belt forms a circulating running structure among the first driving wheel, the driven wheel and the anode roller. The first driving wheel is driven by an external power device to rotate, so that the first driving wheel drives the anode filter belt to operate, the anode filter belt applies shearing force and pressure to sludge, and the anode filter belt forms a circulating structure under the auxiliary drive of each driven wheel.
The cathode pressing belt is provided with a second driving wheel 14 and at least one driven wheel, the second driving wheel drives the cathode pressing belt to run, and the cathode pressing belt forms a circulating running structure between the second driving wheel and the driven wheel. The second driving wheel rotates under the drive of an external power device, so that the second driving wheel drives the cathode pressing belt to operate, the cathode pressing belt applies shearing force to the sludge and provides mechanical pressure required during electroosmosis dehydration, and the cathode pressing belt forms a circulating structure under the auxiliary drive of each driven wheel.
The transmission filter belt is provided with a third driving wheel 15 and at least one driven wheel, the third driving wheel drives the transmission filter belt to operate, the transmission filter belt forms a circulating operation structure between the third driving wheel and the driven wheel, and the cathode pressing belt is tightly attached to the transmission filter belt at an electroosmosis pressing and dewatering station. The third driving wheel is driven by an external power device to rotate, so that the third driving wheel drives the transmission filter belt to operate, the transmission filter belt conveys sludge, and the transmission filter belt forms a circulating structure under the auxiliary drive of each driven wheel.
And a power supply box 4 is also arranged, the positive lead of the power supply box is connected with the anode roller, and the negative lead of the power supply box is connected with the cathode pressing belt. The cathode pressing belt is made of a composite material with good conductivity and pressure resistance.
The conveying filter belt is also provided with a feeding position, and a sludge disperser 1 and a sludge distributing roller 2 are sequentially arranged above the conveying filter belt along the sludge conveying direction at the feeding position. The sludge disperser preliminarily disperses the sludge, then conveys the sludge to the conveying filter belt, and further disperses the sludge uniformly through the sludge distributing roller.
The transmission filter belt is also provided with a discharging position, scrapers 8 are arranged on the transmission filter belt and the anode filter belt at the discharging position, and a sludge collecting barrel 9 is arranged below the transmission filter belt. Sludge attached to the transmission filter belt and the anode filter belt is scraped off by a scraper when passing through the material discharge position and falls into a sludge collection barrel to be collected.
And a filtrate collecting system 12 is also arranged at the electroosmosis squeezing dehydration station and comprises a plurality of water collecting discs with water outlets, and the water collecting discs collect filtrate separated from the sludge dehydration process and washing liquid flowing out when the filter belt is cleaned and discharge the filtrate through the water outlets.
And the filter belt washing system 13 is also arranged and comprises a plurality of spray heads, the spray heads spray water to wash the transmission filter belt, and after all mud cakes are removed, the filter belt washing system is started to clean the device, so that the device is convenient to use next time.
A working method of a sludge electroosmosis belt type filter pressing device with a cathode and a pressing belt integrated comprises the following steps:
(1) the sludge primarily dispersed by the sludge disperser is conveyed on the conveying filter belt, and the sludge is further uniformly dispersed by the sludge distributing roller;
(2) the transmission filter belt and the anode filter belt convey the sludge to an electroosmosis pressing dehydration station, when the dehydration channel is filled with the sludge, the transmission filter belt and the anode filter belt stop conveying the sludge, the cathode filter belt runs to compact the sludge, and the anode filter belt, the sludge, the transmission filter belt and the cathode filter belt are in close contact;
(3) the cathode pressing belt continues to run, mechanical pressure required during electroosmosis dehydration is maintained, a power supply box is started, and electroosmosis dehydration treatment is carried out on the sludge;
(4) and stopping the operation of the cathode pressing belt, and starting the transmission filter belt and the anode filter belt to convey the dewatered sludge out of the electroosmosis pressing dewatering station.
The utility model provides a mud electroosmosis belt filter pressing device of above-mentioned negative pole and squeeze area integration, its theory of use does, adds sludge disperser 1 with 75% ~ 85% moisture content's mud after mechanical dehydration and disperses, and the feeding position department of 3 front ends of transmission filter belt is carried to the mud that passes through the dispersion, and third action wheel 15 rotates and drives transmission filter belt 3 and rotate, carries mud to electroosmosis squeeze dehydration station, further disperses evenly mud through mud distributing roller 2, accomplishes the feeding process. The transmission filter belt 3 and the anode filter belt 5 continuously send the sludge which is uniformly dispersed into an electroosmosis squeezing dewatering station, when the sludge is full of an electroosmosis squeezing dewatering area, the operation of the transmission filter belt 3 and the anode filter belt 5 is stopped, the second driving wheel 14 rotates and drives the cathode squeezing belt 11 by means of transmission of a driven wheel, the sludge of the electroosmosis squeezing dewatering station is compacted by utilizing the shearing acting force of the cathode squeezing belt 11 on the sludge, and the anode filter belt 5, the sludge, the transmission filter belt 3 and the cathode squeezing belt 11 are in close contact. The shearing action of the cathode press belt 11 on the sludge is continued to maintain the mechanical pressure required for electroosmotic dewatering. The positive electrode lead of the power supply box 4 is connected to the anode roller 6, and the negative electrode lead is connected to the cathode press belt 11. The cathode press belt 11 is made of a composite material having good conductivity and pressure resistance. The control system optimizes the operation parameters such as mechanical pressure, current, voltage and the like, and realizes the dehydration effect with higher efficiency and lower energy consumption. The filtrate from sludge dewatering flows into a filtrate collection system 12 through a transmission filter belt 3 and a cathode pressing belt 11, and then is subjected to subsequent treatment. The process can reduce the water content of the sludge from 75-85% to 45-60% and only needs 40-60 min. And after the electroosmosis dehydration treatment is finished, stopping the operation of the cathode pressing belt 11, starting the transmission filter belt 3 and the anode filter belt 5 to enable the dehydrated mud cakes to leave the electroosmosis pressing dehydration station and enter a discharging position, and under the action of the scraper 8, enabling the mud cakes to fall into the mud collecting barrel 9 from the transmission filter belt 3 and the anode filter belt 5, and collecting and transporting the mud cakes outwards. After all the mud cakes are removed, the filter belt washing system 13 is started to clean the filter belt of the device, so that the device is convenient to use next time. The washed washing liquid is collected by the filtrate collection system 12 and then subjected to subsequent treatment.
As described above, the present invention can be realized well, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present invention are intended to be covered by the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a mud electroosmosis belt filter pressing device of negative pole and squeeze area integration, its characterized in that squeezes area, positive pole filter belt and anode drum including transmission filter belt, negative pole, be equipped with the electroosmosis on the transmission filter belt and squeeze dehydration station, squeeze dehydration station department at the electroosmosis, the transmission filter belt below is equipped with the negative pole and squeezes the area, and the top of transmission filter belt is equipped with the positive pole filter belt, and positive pole filter belt parcel anode drum forms curved dewatering channel between positive pole filter belt and the transmission filter belt.
2. The sludge electroosmosis belt type pressure filtration device integrating the cathode and the press belt as claimed in claim 1, wherein the anode filter belt is further provided with a first driving wheel and at least one driven wheel, the first driving wheel drives the anode filter belt to operate, and the anode filter belt forms a circulating structure among the first driving wheel, the driven wheel and the anode roller.
3. The sludge electroosmosis belt type filter pressing device integrating the cathode and the pressing belt as claimed in claim 1, wherein the cathode pressing belt is provided with a second driving wheel and at least one driven wheel, the second driving wheel drives the cathode pressing belt to operate, and the cathode pressing belt forms a circulating structure between the second driving wheel and the driven wheel.
4. The sludge electroosmosis belt type filter pressing device integrating the cathode and the pressing belt as claimed in claim 1, wherein the transmission filter belt is provided with a third driving wheel and at least one driven wheel, the third driving wheel drives the transmission filter belt to operate, the transmission filter belt forms a circulating structure between the third driving wheel and the driven wheel, and the cathode pressing belt is tightly attached to the transmission filter belt at the electroosmosis pressing dehydration station.
5. The sludge electroosmosis belt type filter pressing device integrating the cathode and the pressing belt is characterized by further comprising a power supply box, wherein a positive lead of the power supply box is connected with the anode roller, and a negative lead of the power supply box is connected with the cathode pressing belt.
6. The electro-osmosis sludge belt-type filter pressing device with the cathode integrated with the pressing belt as claimed in claim 1, wherein the conveying belt is further provided with a feeding position, and a sludge disperser and a sludge distributing roller are sequentially arranged above the conveying belt along a sludge conveying direction at the feeding position.
7. The electro-osmosis belt type sludge pressure filtration device integrating the cathode and the pressing belt as claimed in claim 1, wherein a discharging position is further arranged on the transmission filter belt, scrapers are arranged on the transmission filter belt and the anode filter belt at the discharging position, and a sludge collecting barrel is arranged below the transmission filter belt.
8. The sludge electroosmosis belt type filter pressing device integrating the cathode and the pressing belt as claimed in claim 1, wherein a filtrate collecting system is further arranged at the electroosmosis pressing dehydration station.
9. The sludge electroosmosis belt type pressure filtration device integrating the cathode and the press belt as claimed in claim 1, wherein a filter belt washing system is arranged at the transmission filter belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920614072.3U CN210085229U (en) | 2019-04-30 | 2019-04-30 | Cathode and pressing belt integrated sludge electroosmosis belt type filter pressing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920614072.3U CN210085229U (en) | 2019-04-30 | 2019-04-30 | Cathode and pressing belt integrated sludge electroosmosis belt type filter pressing device |
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| CN210085229U true CN210085229U (en) | 2020-02-18 |
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| CN201920614072.3U Active CN210085229U (en) | 2019-04-30 | 2019-04-30 | Cathode and pressing belt integrated sludge electroosmosis belt type filter pressing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002714A (en) * | 2019-04-30 | 2019-07-12 | 华南理工大学 | Cathode and the saturating belt filter-pressing device of the integrated sludge electroosmotic of expelling belt and method |
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2019
- 2019-04-30 CN CN201920614072.3U patent/CN210085229U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002714A (en) * | 2019-04-30 | 2019-07-12 | 华南理工大学 | Cathode and the saturating belt filter-pressing device of the integrated sludge electroosmotic of expelling belt and method |
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