CN210559973U - Sludge electrochemical leaching device - Google Patents
Sludge electrochemical leaching device Download PDFInfo
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- CN210559973U CN210559973U CN201920986819.8U CN201920986819U CN210559973U CN 210559973 U CN210559973 U CN 210559973U CN 201920986819 U CN201920986819 U CN 201920986819U CN 210559973 U CN210559973 U CN 210559973U
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Abstract
The utility model relates to a mud electrochemistry drip washing device belongs to mud electrochemistry prosthetic devices. Comprises an electrolytic cell, a spray header, a cathode and a filter material chamber; the spray header is positioned right above the electrolytic cell and is used for spraying the leacheate into the anode chamber and the sludge chamber; the leacheate is combined with pollutants in the sludge chamber through desorption, dissolution or complexation under the action of an electric field to form a migratory compound which moves to the cathode chamber, and the compound is deposited on the surface of the cathode; the lower surface of the cathode is contacted with a scale scraping plate which is used for scraping dirt deposited on the anode when the cathode rotates; the leacheate collecting chamber is used for collecting the regenerated leacheate and the unused leacheate in the anode chamber and pumping the leacheate into the spray header through a pump. The sludge leaching device leachates polluted sludge by using an electrochemical method, solves the problem of cathode scaling, realizes the recycling of leacheate and occupies small area.
Description
Technical Field
The utility model relates to a mud electrochemistry prosthetic devices especially relates to a mud electrochemistry drip washing device.
Background
A typical electrochemical leaching technique (E-flushing) applies a leaching agent to the sludge under the action of an electric field, so that the leaching agent permeates downward, passes through a pollution zone to be combined with pollutants, and finally forms a migratable compound through desorption, dissolution or complexation. The solution containing the pollutants can be collected and stored by using an extraction well and other modes, and then is further processed to be used for treating the polluted sludge again. The traditional electrochemical leaching device occupies a large area and has poor mobility.
Due to the action of an electric field, the migratable pollutants move to the cathode, and the traditional electrochemical leaching device has the problem of cathode scaling, thus seriously influencing the sensitivity and the processing capacity of the reaction device.
SUMMERY OF THE UTILITY MODEL
The utility model provides an among the prior art mud electrochemistry drip washing device negative pole scale deposit problem, influence the sensitivity of drip washing to and area leads to the poor technical problem of mobility greatly. The utility model discloses the negative pole is rotatable, makes the scraper strike off the dirt of deposit on the negative pole through the rotation of negative pole, just the utility model discloses it is as an organic whole with regenerating unit to collect electrolytic bath, leacheate and throw, and convenient transportation is used, and area is little.
According to the purpose of the utility model, the utility model provides a sludge electrochemical leaching device, which comprises an electrolytic cell, a spray header, a cathode and a filter material chamber;
the upper part of the electrolytic cell is provided with an opening and comprises an anode chamber, a cathode chamber and a sludge chamber; the anode chamber and the sludge chamber are separated by an anode plate, and the surface of the anode plate is provided with a hole structure; the cathode chamber and the sludge chamber are separated by a partition plate, and the surface of the partition plate is provided with a hole structure; the cathode is positioned in the cathode chamber, and the cathode and the anode plate are respectively connected with the cathode and the anode of the power supply; the cathode is in a wheel shape and is connected with the inner wall of the electrolytic cell through a fixed shaft, and the periphery of the fixed shaft is sleeved with a bearing, so that the cathode can rotate around the bearing;
the spray header is positioned right above the electrolytic cell; clamping grooves are distributed on the inner walls of two opposite sides of the electrolytic cell and are used for fixing the anode plate and the partition plate; the spray header is used for spraying leacheate into the anode chamber and the sludge chamber, and the leacheate can be combined with pollutants in the sludge chamber through desorption, dissolution or complexation under the action of an electric field to form a transferable compound and move to the cathode chamber to be finally deposited on the surface of the cathode; the lower surface of the cathode is in contact with a scale scraping plate, and the scale scraping plate is used for scraping dirt deposited on the anode when the cathode rotates;
the filter material chamber is positioned under the cathode chamber and is used for separating feed liquid in the cathode chamber.
Preferably, the device further comprises an eluent regeneration chamber and an eluent collection chamber, wherein the eluent regeneration chamber is located below the filter material chamber and is used for containing a medicament, so that pollutants in the feed liquid flowing out of the filter material chamber are precipitated or removed by gas to obtain regenerated eluent; a screen is fixed on the cross section of the outlet of the eluent regeneration chamber; the eluent regeneration chamber is positioned in the eluent collection chamber, and the eluent collection chamber is used for collecting regenerated eluent and unused eluent in the anode chamber; the leacheate collecting chamber is connected with a pump, and the pump is used for pumping the regenerated leacheate in the leacheate collecting chamber into the spray header.
Preferably, the anode plate is a magnesium plate, a lead plate or a titanium plate with an iridium oxide and tantalum pentoxide coating on the surface, and the diameter of the hole on the surface of the anode plate is 0.5mm-1 mm.
Preferably, the diameter of the hole on the surface of the clapboard is 0.5mm-1mm, and the clapboard is a stainless steel plate.
Preferably, the filler of the filter material chamber is diatomite.
Preferably, the cathode is a titanium material.
Preferably, the leacheate regeneration chamber is filled with sodium carbonate, so that calcium ions in the feed liquid generate precipitates, and regenerated leacheate is obtained.
Preferably, the number of the spray openings in the spray header is 8-10, and the spray openings are distributed annularly.
Preferably, the diameter of the holes on the screen is 50 μm to 80 μm.
Preferably, the number of the clamping grooves is more than 2 pairs, and the clamping grooves are used for adjusting the positions of the anode plate and the separator plate.
Generally, through the utility model above technical scheme who thinks compares with prior art, mainly possesses following technical advantage:
(1) the utility model discloses the negative pole is rotatable, makes the scraper blade strike off the dirt of deposit on the negative pole through the rotation of negative pole. The prior art has the problems of serious cathode scaling, difficult cleaning and the like, the scale is mostly poor conductors, the scale layer blocks the conduction of current in the operation of the equipment, unnecessary energy consumption is increased, if the scale is deposited too much, the equipment must be stopped for cleaning, the operation time of the equipment is reduced, and the production efficiency is reduced. The utility model discloses but equipment reaches the effect of scale removal simultaneously at the operation in-process, and it is extravagant to have avoided the energy consumption that leads to by the scaling layer, improves production efficiency simultaneously greatly.
(2) The utility model provides a mud electrochemistry drip washing device, preferably, collect the leacheate and throw with, regeneration system is as an organic whole, convenient transportation is used, area is little. The existing device treats polluted sludge, and simultaneously, a sludge leaching device and a leaching solution regeneration device are designed in a production line mode, and are connected through a pipeline, so that the occupied area is large, and the mobility is poor. The utility model discloses collect electrolysis trough and leacheate regenerating unit and an organic whole on prior art basis, the leacheate can directly be retrieved by leacheate regenerating unit by the action of gravity behind the contaminated sludge that is flowing, has reduced the area of device greatly, convenient transportation.
Drawings
FIG. 1 is a schematic view of the sludge electrochemical leaching apparatus of the present invention.
Figure 2 is a schematic diagram of the cathode in the electrolytic cell of the present invention.
Figure 3 is a schematic top view of the electrolytic cell of the present invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
1-electrolytic cell, 2-spray header, 3-cathode, 4-filter material chamber, 5-anode chamber, 6-cathode chamber, 7-sludge chamber, 8-anode plate, 9-clapboard, 10-fixed shaft, 11-bearing, 12-clamping groove, 13-scaling plate, 14-eluent regeneration chamber, 15-eluent collection chamber and 16-pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The utility model discloses the essence is providing a mud electrochemistry drip washing device, and the negative pole scale deposit problem is solved simultaneously to convenient transportation use. FIG. 1 is a schematic view of the sludge electrochemical leaching apparatus of the present invention. Figure 2 is a schematic diagram of the cathode in the electrolytic cell of the present invention.
Example 1
The utility model relates to a sludge electrochemical leaching device, which comprises an electrolytic cell 1, a spray header 2, a cathode 3 and a filter material chamber 4;
the upper part of the electrolytic cell 1 is provided with an opening and comprises an anode chamber 5, a cathode chamber 6 and a sludge chamber 7; the anode chamber 5 and the sludge chamber 7 are separated by an anode plate 8, and the surface of the anode plate 8 is provided with a hole structure; the cathode chamber 6 and the sludge chamber 7 are separated by a partition plate 9, and the surface of the partition plate 9 is provided with a hole structure; the cathode 3 is positioned in the cathode chamber 6, and the cathode 3 and the anode plate 8 are respectively connected with the negative electrode and the positive electrode of a power supply; the cathode 3 is wheel-shaped and is connected with the inner wall of the electrolytic cell 1 through a fixed shaft 10, and the periphery of the fixed shaft 9 is sleeved with a bearing 11, so that the cathode 3 can rotate around the bearing 11;
the spray header 2 is positioned right above the electrolytic cell 1; clamping grooves 12 are distributed on the inner walls of two opposite sides of the electrolytic cell 1, and the clamping grooves 12 are used for fixing the anode plate 8 and the partition plate 9; the spray header 2 is used for spraying leacheate into the anode chamber 5 and the sludge chamber 7, the leacheate can be combined with pollutants in sludge in the sludge chamber 7 through desorption, dissolution or complexation under the action of an electric field to form a transferable compound, the compound moves towards the cathode chamber 6 and finally deposits on the surface of the cathode 3; the lower surface of the cathode 3 is contacted with a scraper 13, and the scraper 13 is used for scraping dirt deposited on the anode 3 when the cathode 3 rotates;
the filter material chamber 4 is positioned under the cathode chamber 6, and the filter material chamber 4 is used for separating feed liquid in the cathode chamber 6.
The cathode 3 is designed in a wheel shape, is fixed in the cathode chamber 6 by a fixing shaft 10, can rotate along with a bearing under the control of a motor, and has the rotating speed adjusted according to actual requirements.
Example 2
The utility model relates to a sludge electrochemical leaching device, which comprises an electrolytic cell 1, a spray header 2, a cathode 3 and a filter material chamber 4;
the upper part of the electrolytic cell 1 is provided with an opening and comprises an anode chamber 5, a cathode chamber 6 and a sludge chamber 7; the anode chamber 5 and the sludge chamber 7 are separated by an anode plate 8, and the surface of the anode plate 8 is provided with a hole structure; the cathode chamber 6 and the sludge chamber 7 are separated by a partition plate 9, and the surface of the partition plate 9 is provided with a hole structure; the cathode 3 is positioned in the cathode chamber 6, and the cathode 3 and the anode plate 8 are respectively connected with the negative electrode and the positive electrode of a power supply; the cathode 3 is wheel-shaped and is connected with the inner wall of the electrolytic cell 1 through a fixed shaft 10, and the periphery of the fixed shaft 9 is sleeved with a bearing 11, so that the cathode 3 can rotate around the bearing 11;
the spray header 2 is positioned right above the electrolytic cell 1; clamping grooves 12 are distributed on the inner walls of two opposite sides of the electrolytic cell 1, and the clamping grooves 12 are used for fixing the anode plate 8 and the partition plate 9; the spray header 2 is used for spraying leacheate into the anode chamber 5 and the sludge chamber 7, the leacheate can be combined with pollutants in sludge in the sludge chamber 7 through desorption, dissolution or complexation under the action of an electric field to form a transferable compound, the compound moves towards the cathode chamber 6 and finally deposits on the surface of the cathode 3; the lower surface of the cathode 3 is contacted with a scraper 13, and the scraper 13 is used for scraping dirt deposited on the anode 3 when the cathode 3 rotates;
the filter material chamber 4 is positioned under the cathode chamber 6, and the filter material chamber 4 is used for separating feed liquid in the cathode chamber 6.
The utility model also comprises an eluent regeneration chamber 14 and an eluent collection chamber 15, wherein the eluent regeneration chamber 14 is positioned below the filter material chamber 4, and the eluent regeneration chamber 14 is used for containing medicament, so that pollutants in the feed liquid flowing out of the filter material chamber 4 are precipitated or gas is removed to obtain regenerated eluent; a screen is fixed on the cross section of the outlet of the leacheate regeneration chamber 14; the eluent regeneration chamber 14 is positioned in an eluent collection chamber 15, and the eluent collection chamber 15 is used for collecting regenerated eluent and unused eluent in the anode chamber 5; the eluent collection chamber 15 is connected to a pump 16, and the pump 16 is used for pumping the regenerated eluent in the eluent collection chamber 15 into the shower head 2.
The anode plate 8 is a magnesium plate, and the diameter of the hole on the surface of the anode plate 8 is 0.5 mm.
The diameter of the hole on the surface of the partition plate 9 is 0.5mm, and the partition plate 9 is a stainless steel plate.
The filler of the filter material chamber 4 is diatomite.
The cathode 3 is made of titanium material.
The leacheate regeneration chamber 14 is filled with sodium carbonate, so that calcium ions in the feed liquid generate precipitates, and regenerated leacheate is obtained.
The number of the spray openings in the spray header 2 is 8, and the spray openings are distributed annularly.
The diameter of the holes on the screen is 50 μm.
The number of the clamping grooves 12 is 6 pairs, and the clamping grooves are used for adjusting the positions of the anode plate 8 and the baffle plate 9. FIG. 3 is a schematic plan view of the electrolytic cell of the present invention, which can adjust the positions of the anode plate 8 and the partition plate 9 according to the amount of sludge to be treated.
Compared with the prior art, the utility model integrates the electrolytic cell 1, the leacheate regeneration chamber 14 and the spraying device, thereby being convenient for transportation and use, strong in practicability and small in occupied area; meanwhile, the cathode which is easy to scale is arranged to be in a rotating shaft shape and is attached with the scale scraping plate, so that the problem of cathode scaling can be solved while the equipment is in operation.
Example 3
The utility model relates to a sludge electrochemical leaching device, which comprises an electrolytic cell 1, a spray header 2, a cathode 3 and a filter material chamber 4;
the upper part of the electrolytic cell 1 is provided with an opening and comprises an anode chamber 5, a cathode chamber 6 and a sludge chamber 7; the anode chamber 5 and the sludge chamber 7 are separated by an anode plate 8, and the surface of the anode plate 8 is provided with a hole structure; the cathode chamber 6 and the sludge chamber 7 are separated by a partition plate 9, and the surface of the partition plate 9 is provided with a hole structure; the cathode 3 is positioned in the cathode chamber 6, and the cathode 3 and the anode plate 8 are respectively connected with the negative electrode and the positive electrode of a power supply; the cathode 3 is wheel-shaped and is connected with the inner wall of the electrolytic cell 1 through a fixed shaft 10, and the periphery of the fixed shaft 9 is sleeved with a bearing 11, so that the cathode 3 can rotate around the bearing 11;
the spray header 2 is positioned right above the electrolytic cell 1; clamping grooves 12 are distributed on the inner walls of two opposite sides of the electrolytic cell 1, and the clamping grooves 12 are used for fixing the anode plate 8 and the partition plate 9; the spray header 2 is used for spraying leacheate into the anode chamber 5 and the sludge chamber 7, the leacheate can be combined with pollutants in sludge in the sludge chamber 7 through desorption, dissolution or complexation under the action of an electric field to form a transferable compound, the compound moves towards the cathode chamber 6 and finally deposits on the surface of the cathode 3; the lower surface of the cathode 3 is contacted with a scraper 13, and the scraper 13 is used for scraping dirt deposited on the anode 3 when the cathode 3 rotates;
the filter material chamber 4 is positioned under the cathode chamber 6, and the filter material chamber 4 is used for separating feed liquid in the cathode chamber 6.
The utility model also comprises an eluent regeneration chamber 14 and an eluent collection chamber 15, wherein the eluent regeneration chamber 14 is positioned below the filter material chamber 4, and the eluent regeneration chamber 14 is used for containing medicament, so that pollutants in the feed liquid flowing out of the filter material chamber 4 are precipitated or gas is removed to obtain regenerated eluent; a screen is fixed on the cross section of the outlet of the leacheate regeneration chamber 14; the eluent regeneration chamber 14 is positioned in an eluent collection chamber 15, and the eluent collection chamber 15 is used for collecting regenerated eluent and unused eluent in the anode chamber 5; the eluent collection chamber 15 is connected to a pump 16, and the pump 16 is used for pumping the regenerated eluent in the eluent collection chamber 15 into the shower head 2.
The anode plate 8 is a lead plate, and the diameter of the hole on the surface of the anode plate 8 is 0.8 mm.
The diameter of the hole on the surface of the partition plate 9 is 0.8mm, and the partition plate 9 is a stainless steel plate.
The filler of the filter material chamber 4 is diatomite.
The cathode 3 is made of titanium material.
The number of the spray openings in the spray header 2 is 9, and the spray openings are distributed annularly.
The diameter of the holes on the screen is 60 μm.
The number of the clamping grooves 12 is 10 pairs, and the clamping grooves are used for adjusting the positions of the anode plate 8 and the baffle plate 9.
Example 4
The utility model relates to a sludge electrochemical leaching device, which comprises an electrolytic cell 1, a spray header 2, a cathode 3 and a filter material chamber 4;
the upper part of the electrolytic cell 1 is provided with an opening and comprises an anode chamber 5, a cathode chamber 6 and a sludge chamber 7; the anode chamber 5 and the sludge chamber 7 are separated by an anode plate 8, and the surface of the anode plate 8 is provided with a hole structure; the cathode chamber 6 and the sludge chamber 7 are separated by a partition plate 9, and the surface of the partition plate 9 is provided with a hole structure; the cathode 3 is positioned in the cathode chamber 6, and the cathode 3 and the anode plate 8 are respectively connected with the negative electrode and the positive electrode of a power supply; the cathode 3 is wheel-shaped and is connected with the inner wall of the electrolytic cell 1 through a fixed shaft 10, and the periphery of the fixed shaft 9 is sleeved with a bearing 11, so that the cathode 3 can rotate around the bearing 11;
the spray header 2 is positioned right above the electrolytic cell 1; clamping grooves 12 are distributed on the inner walls of two opposite sides of the electrolytic cell 1, and the clamping grooves 12 are used for fixing the anode plate 8 and the partition plate 9; the spray header 2 is used for spraying leacheate into the anode chamber 5 and the sludge chamber 7, the leacheate can be combined with pollutants in sludge in the sludge chamber 7 through desorption, dissolution or complexation under the action of an electric field to form a transferable compound, the compound moves towards the cathode chamber 6 and finally deposits on the surface of the cathode 3; the lower surface of the cathode 3 is contacted with a scraper 13, and the scraper 13 is used for scraping dirt deposited on the anode 3 when the cathode 3 rotates;
the filter material chamber 4 is positioned under the cathode chamber 6, and the filter material chamber 4 is used for separating feed liquid in the cathode chamber 6.
The utility model also comprises an eluent regeneration chamber 14 and an eluent collection chamber 15, wherein the eluent regeneration chamber 14 is positioned below the filter material chamber 4, and the eluent regeneration chamber 14 is used for containing medicament, so that pollutants in the feed liquid flowing out of the filter material chamber 4 are precipitated or gas is removed to obtain regenerated eluent; a screen is fixed on the cross section of the outlet of the leacheate regeneration chamber 14; the eluent regeneration chamber 14 is positioned in an eluent collection chamber 15, and the eluent collection chamber 15 is used for collecting regenerated eluent and unused eluent in the anode chamber 5; the eluent collection chamber 15 is connected to a pump 16, and the pump 16 is used for pumping the regenerated eluent in the eluent collection chamber 15 into the shower head 2.
The anode plate 8 is a titanium plate with an iridium oxide and tantalum pentoxide coating on the surface, and the diameter of a hole in the surface of the anode plate 8 is 1 mm.
The diameter of the hole on the surface of the partition board 9 is 1mm, and the partition board 9 is a stainless steel plate.
The filler of the filter material chamber 4 is diatomite.
The cathode 3 is made of titanium material.
The number of the spray openings in the spray header 2 is 10, and the spray openings are distributed annularly.
The diameter of the holes on the screen is 80 μm.
The number of the clamping grooves 12 is 13 pairs, and the clamping grooves are used for adjusting the positions of the anode plate 8 and the baffle plate 9.
Example 5
Taking sludge of a certain sewage treatment plant as an example, the sludge pretreatment is carried out by using a lime drying technology for dehydration, so that the calcium content is far higher than the national sludge discharge standard. In this example, sludge Ca2+The sludge was remediated using the apparatus of example 2 at a level of 400 mg/L.
In the embodiment, the leacheate is clear water, the thickness of the sludge layer is 10cm, the leacheate is arranged between the anode plate 8 and the partition plate 9, and the electric field intensity of the sludge layer is 90V/cm. In the initial stage of repair, the leacheate is added into the sludge chamber 7 and the anode chamber 5, the valves are closed, after the anode plate 8 and the cathode 3 are electrified, the sludge is subjected to ion migration under the action of an electric field, and Ca is removed2+The part of the eluent is moved to the cathode, and the part of the eluent is attached to the cathode 3, so that a scaling layer is formed on the surface of the cathode 3 and is scraped off by a scaling plate 13 along with the rotation of the cathode 3. The solution produced in the cathode chamber 6 is subjected to solid-liquid separation by the filter medium in the filter medium chamber 4, at which time the valve is opened and the filtrate flows into the eluent regenerator 14. In this example, Na was used in the eluent regeneration apparatus 142C03With Ca in the filtrate2+And (3) forming a precipitate, conveying the regenerated leacheate and the residual leacheate in the anode chamber 5 to the spray header 2 by a pump 16, and spraying the leacheate to the sludge chamber 7 and the anode chamber 5 again for recycling. The sludge Ca is repaired by 6 cycles2+The concentration was reduced to 90 mg/L.
In operation, it will be appreciated by those skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, and is not intended to limit the invention, and that any modification, equivalent arrangement, or improvements made within the spirit and scope of the present invention should be considered within the scope of the present invention.
Claims (10)
1. The sludge electrochemical leaching device is characterized by comprising an electrolytic cell (1), a spray header (2), a cathode (3) and a filter material chamber (4);
the upper part of the electrolytic cell (1) is provided with an opening and comprises an anode chamber (5), a cathode chamber (6) and a sludge chamber (7); the anode chamber (5) is separated from the sludge chamber (7) by an anode plate (8), and the surface of the anode plate (8) is provided with a hole structure; the cathode chamber (6) and the sludge chamber (7) are separated by a partition plate (9), and the surface of the partition plate (9) is provided with a hole structure; the cathode (3) is positioned in the cathode chamber (6), and the cathode (3) and the anode plate (8) are respectively connected with the negative electrode and the positive electrode of a power supply; the cathode (3) is wheel-shaped and is connected with the inner wall of the electrolytic cell (1) through a fixed shaft (10), and the periphery of the fixed shaft (10) is sleeved with a bearing (11) so that the cathode (3) can rotate around the bearing (11);
the spray header (2) is positioned right above the electrolytic cell (1); clamping grooves (12) are distributed on the inner walls of two opposite sides of the electrolytic cell (1), and the clamping grooves (12) are used for fixing the anode plate (8) and the partition plate (9); the spray header (2) is used for spraying an leacheate into the anode chamber (5) and the sludge chamber (7), the leacheate can be combined with pollutants in the sludge chamber (7) through desorption, dissolution or complexation under the action of an electric field to form a migratable compound, the migratable compound moves towards the cathode chamber (6), and the migratable compound is finally deposited on the surface of the cathode (3); the lower surface of the cathode (3) is in contact with a scale scraping plate (13), and the scale scraping plate (13) is used for scraping dirt deposited on the cathode (3) when the cathode (3) rotates;
the filter material chamber (4) is positioned under the cathode chamber (6), and the filter material chamber (4) is used for separating the feed liquid in the cathode chamber (6).
2. The electrochemical leaching apparatus for sludge according to claim 1, further comprising a leacheate regeneration chamber (14) and a leacheate collection chamber (15), wherein the leacheate regeneration chamber (14) is located below the filter material chamber (4), and the leacheate regeneration chamber (14) is used for containing a medicament to precipitate or remove pollutants in the feed liquid flowing out of the filter material chamber (4) to obtain regenerated leacheate; a screen is fixed on the cross section of the outlet of the leacheate regeneration chamber (14); the eluent regeneration chamber (14) is positioned in an eluent collection chamber (15), and the eluent collection chamber (15) is used for collecting regenerated eluent and unused eluent in the anode chamber (5); the leacheate collecting chamber (15) is connected with a pump (16), and the pump (16) is used for pumping the regenerated leacheate in the leacheate collecting chamber (15) into the spray header (2).
3. The sludge electrochemical leaching device according to claim 1, wherein the anode plate (8) is a magnesium plate, a lead plate or a titanium plate with iridium oxide and tantalum pentoxide coatings on the surface, and the diameter of the holes on the surface of the anode plate (8) is 0.5mm-1 mm.
4. The electrochemical leaching device for sludge according to claim 1, wherein the diameter of the holes on the surface of the partition plate (9) is 0.5mm-1mm, and the partition plate (9) is a stainless steel plate.
5. Electrochemical leaching device for sludge according to claim 1, wherein the filler of the filter material chamber (4) is diatomaceous earth.
6. Electrochemical sludge leaching apparatus according to claim 1, wherein the cathode (3) is of titanium material.
7. The electrochemical leaching apparatus for sludge according to claim 2, wherein the leacheate regeneration chamber (14) is filled with sodium carbonate, so that calcium ions in the feed liquid are precipitated to obtain regenerated leacheate.
8. The electrochemical sludge leaching apparatus according to claim 1, wherein the number of the spray openings in the spray header (2) is 8-10, and the spray openings are annularly distributed.
9. The electrochemical sludge leaching apparatus of claim 2, wherein the diameter of the holes in the screen is 50 μm to 80 μm.
10. The electrochemical sludge leaching apparatus according to claim 1, wherein the number of said slots (12) is greater than 2 pairs for adjusting the position of the anode plate (8) and the spacer plate (9).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111574005A (en) * | 2020-05-27 | 2020-08-25 | 湖北华德莱节能减排科技有限公司 | Salinization sludge treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111574005A (en) * | 2020-05-27 | 2020-08-25 | 湖北华德莱节能减排科技有限公司 | Salinization sludge treatment method |
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