CN209759191U - Device for treating livestock and poultry wastewater by virtue of electric flocculation and ozone nano-bubble air flotation - Google Patents
Device for treating livestock and poultry wastewater by virtue of electric flocculation and ozone nano-bubble air flotation Download PDFInfo
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Abstract
The utility model discloses a device of beasts and birds waste water is handled in cooperation of electric flocculation ozone nanometer bubble air supporting, including constant voltage power supply, reactor and ozone generator, separate for communicating in proper order by the baffle of vertical setting in the reactor: the electrolytic cell is internally provided with a plate electrode which is externally connected with the stabilized voltage power supply, and the wall of the electrolytic cell is provided with a water inlet; the bottom of the air flotation tank is provided with a hollow inorganic ceramic membrane aeration plate, and the inner cavity of the inorganic ceramic membrane aeration plate is externally connected with the ozone generator through a pipeline; and the wall of the clean water tank is provided with a water outlet. The utility model discloses utilize the effect of air supporting and electric flocculation and precipitation coupling, practice thrift the time of electric flocculation and precipitation, save area.
Description
Technical Field
The utility model relates to a sewage treatment technical field, concretely relates to device of beasts and birds waste water is handled in air supporting of electric flocculation ozone nanometer bubble.
Background
The livestock wastewater has the characteristics of large and concentrated wastewater discharge amount, high pollutant concentration, high N, P content and large quantity of harmful microorganisms, COD can reach thousands to tens of thousands mg/L, NH4+ -N reaches 800-2200 mg/L, Suspended Solid (SS) exceeds ten times, the transparency, Dissolved Oxygen (DO) and pH of a water body can be influenced, the eutrophication of the water body is caused, and after a large amount of generated hydrocarbon enters the water body in a culturing farm, the content of high N, P enables a large amount of algae in the water body to propagate, the water body is thought to be changed, terrible odor is emitted, and the obvious eutrophication phenomenon is generated. After the livestock wastewater is directly discharged to the ground surface, the livestock wastewater can enter underground water along with surface water in rainy season, so that the content of nitrite ammonia and nitrate nitrogen is greatly increased, and the water quality is seriously deteriorated. After the wastewater discharged by the farm enters the soil, the air permeability and the water permeability of soil particles are reduced, and the phenomenon of hardening and even salt lustering occurs, so that the yield of crops is greatly reduced. In addition, the wastewater discharged by the pigs contains a large amount of pathogenic microorganisms and parasites, and also leaves part of veterinary drugs which cause disastrous damage to people and poultry. Therefore, pollutants in the livestock and poultry wastewater need to be treated and discharged after reaching the standard.
The traditional physicochemical treatment technology of the livestock and poultry wastewater comprises an adsorption method, magnetic flocculation precipitation, electrochemical oxidation and Fenton oxidation. However, the technologies are limited by various factors such as other substances in the wastewater, process conditions, price and the like, so that an efficient and economic livestock wastewater treatment mode is lacked in the current market.
The utility model discloses a chinese utility model patent application document of application number 201620460261.6 discloses a beasts and birds waste water flocculation basin, and the processing method is to divide the flocculation cell body into three stirring flocculation district and a static liquid district, makes stirring flocculation district and static play liquid district be snakelike intercommunication through the effect of baffle to increase flocculation reaction's time, but this technology has only adopted single flocculation technology, and the time of handling is still longer, and equipment area is big.
The patent application document of the Chinese utility model with the application number of 201511003887.0 discloses a treatment method of livestock and poultry breeding wastewater, which comprises the following main treatment steps: the process comprises 4 steps of pretreatment, heavy metal treatment, antibiotic treatment and duckweed cultivation, has a good effect of removing ammonia nitrogen and total phosphorus in the wastewater, but has time limitation, the duckweed cultivation is only suitable for summer, the treatment time of the process is long, the occupied area is large, and the effluent can not stably reach the standard.
SUMMERY OF THE UTILITY MODEL
The utility model provides a device of beasts and birds waste water is handled in cooperation of electric flocculation and ozone nanometer bubble air supporting utilizes the effect of air supporting and electric flocculation and precipitation coupling, practices thrift the time of electric flocculation and precipitation, saves area.
The utility model provides a device of beasts and birds waste water is handled in cooperation of electric flocculation ozone nanometer bubble air supporting, includes constant voltage power supply, reactor and ozone generator, separate for communicating in proper order by the baffle of vertical setting in the reactor:
The electrolytic cell is internally provided with a plate electrode which is externally connected with the stabilized voltage power supply, and the wall of the electrolytic cell is provided with a water inlet;
The bottom of the air flotation tank is provided with a hollow inorganic ceramic membrane aeration plate, and the inner cavity of the inorganic ceramic membrane aeration plate is externally connected with the ozone generator through a pipeline;
And the wall of the clean water tank is provided with a water outlet.
The utility model discloses in use electrolytic cell, nanometer air supporting pond jointly for air supporting and electric flocculation produce the coupling effect. The method comprises the steps that initial wastewater enters an electrolytic tank, wastewater in the electrolytic tank is electrolyzed, aluminum ions generated by electrolysis react with pollutants in the wastewater, sludge is discharged after precipitation, treated water is sent into an air floatation tank, ozone is exposed through an inorganic ceramic membrane at the bottom of the air floatation tank, micro nano bubbles are generated on the surface of the ceramic membrane, the bubbles slowly float from the bottom, the micro bubbles are adhered to suspended particles in the water to form a water-gas-particle three-phase mixed system, after the bubbles are adhered to the particles, floating flocs with the surface density smaller than that of the water are formed, the flocs float to the water surface, a scum layer is formed and separated, solid-liquid separation is realized, and suspended matters in the water are removed.
Traditional electric flocculation precipitation needs time longer and the effect is not good, and remaining suspended solid in the waste water after this patent utilizes the principle of air supporting to get rid of the electric flocculation treatment has practiced thrift electric flocculation precipitation's time greatly, saves the area of equipment. In addition, the ceramic membrane ozone aeration has three advantages, firstly, the flocculant can be oxidized to improve the solid-liquid separation efficiency, and compared with a sedimentation tank, the size is effectively reduced; secondly, the ozone can oxidize organic matters and degrade COD; thirdly, the utilization ratio of pure ozone in waste water is not high, but this patent passes through the ceramic membrane aeration for ozone is the micropore bubble, and the rising speed is slow, can effectively make ozone dissolve in the water, improves ozone utilization ratio and utilization effect.
Preferably, the electrode plates are arranged into a plurality of groups which are vertical and are parallel to each other, the cathode electrode plates and the anode electrode plates are alternately arranged, and the distance between every two adjacent electrode plates is 1-3 cm.
Preferably, the ratio of the effective area of all the electrode plates to the volume of the electrolytic cell is 10-30: 1m2/m3. The effective area is half of the sum of the plate surface areas of all the electrode plates, and in the electrolytic cell, the ratio range of the effective area of the electrode plates to the volume of the electrolytic cell is 10-30: 1m2/m3The electrode plate spacing is 1-3 cm, the ratio is too small, the electrode plate spacing is too large, the electrode plate area used by unit sewage is small, the anions and the cations can not efficiently move in water, and the removal effect of pollutants in the wastewater cannot reach an ideal state; the ratio is too big, and the electrode plate interval undersize can cause the waste of energy consumption, and further preferred, the ratio of electrode plate effective area and electrolytic cell volume is 12: 1m2/m3The distance between the electrode plates is 2 cm.
Preferably, the electrode plate is installed in the electrolytic cell by an electrode plate fixing frame, the electrode plate fixing frame comprises vertical side plates and a supporting cross rod at the bottom, and the side plate close to one side of the water inlet is higher than the water inlet. The wastewater entering the electrolytic cell enters from the bottom and exits from the top of the electrode plate and then enters the air flotation cell through overflow.
Preferably, the inorganic ceramic membrane aeration plate is a hollow aeration plate made of a silicon carbide ceramic membrane, an alumina ceramic membrane, a zirconia ceramic membrane, a titania ceramic membrane or a silica ceramic membrane. More preferably, the hollow aeration plate is made of a silicon carbide ceramic membrane.
Preferably, the inorganic ceramic membrane aeration plate has an average pore diameter of 40-130 nm and a porosity of 30-50%. One end of the ceramic membrane is closed, the other end is connected with an ozone generator through a hose,
Preferably, the baffle between the electrolytic tank and the air flotation tank is a first baffle, and the inorganic ceramic membrane aeration plate is fixed at the bottom of the air flotation tank through a fixing groove fixed on the first baffle.
Preferably, the ratio of the horizontal projection area of the inorganic ceramic membrane aeration plate to the volume of the air floatation tank is 1: (3 to 8) m2/m3. If the ratio is too small, namely the area of the inorganic ceramic membrane is too small, the coverage area of the nano bubbles is small, and the pollutant removal effect is poor; the ratio is too large, that is, the area of the inorganic ceramic membrane is too large, which causes energy consumption waste, and further, it is preferable that the ratio of the projection area of the inorganic ceramic membrane to the volume of the air flotation tank is 1: 5m2/m3。
Preferably, a baffle between the air flotation tank and the clear water tank is a second baffle, an air flotation separation inclined plate is arranged in the air flotation tank and close to the clear water tank side, the bottom edge of the air flotation separation inclined plate is fixed on the bottom plate of the air flotation tank, the top edge of the air flotation separation inclined plate is inclined towards the clear water tank side, and a gap is reserved between the top edge of the air flotation separation inclined plate and the second baffle; and water passing holes for communicating the air floatation tank and the clean water tank are positioned on the second baffle and are lower than the vertical projection height of the air floatation separation inclined plate. The electrolytic cell is communicated with the air flotation cell through overflow.
Further preferably, the top edge of the second baffle plate is connected with a scum groove positioned between the floatation tank and the clean water tank. The scum in the floatation tank realizes solid-liquid separation under the combined action of the inclined plate and the baffle and enters the scum tank.
Introducing the livestock wastewater into the device, starting a stabilized voltage power supply and an ozone generator, preferably, outputting the stabilized voltage power supply at 1-5V, and ensuring that the voltage is too low, the concentration of aluminum ions in the wastewater is too low, and the reaction of pollutants is insufficient; the voltage is too high, which causes energy waste, and a large amount of unreacted metal aluminum ions remain in the sewage, which brings secondary pollution. Further preferably, the output voltage of the regulated power supply is 3V.
Preferably, the current density of the electrode plate is 0.1-0.4 mA/cm-2The density is too low, and the pollutant treatment effect is not ideal; the current density is too high, which causes energy waste. Further preferably, the electrode plate density is 0.25mA/cm-2。
Preferably, the retention time of the wastewater is 0.5-2 h, the removal effect of pollutants is not obvious when the retention time is too short, and the removal efficiency cannot reach an ideal state; too long a residence time increases the footprint of the equipment and the removal efficiency can deviate from a maximum. Further preferably, the residence time is 1 h.
Preferably, the aeration amount of the ozone generator is 10-20 g/h per ton of water, the degradation effect of pollutants when the adding amount is too small is not obvious, the adding amount is too large, the waste of resources can be caused, the ozone has too large amount and is harmful to the health of human bodies, and further preferably, the aeration amount is 15g/h per ton of water.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) The utility model is suitable for a beasts and birds waste water, easy operation is swift, and low cost gets rid of the effect obvious.
(2) The utility model discloses utilize the air supporting and the effect of some flocculation and precipitation coupling, practice thrift the time of some flocculation and precipitation, save area.
(3) The utility model discloses improve traditional air supporting technique, change the material of air supporting device into ceramic membrane, utilize the diameter littleer, the bigger bubble of specific surface area to get rid of the suspended solid in the waste water, aeration equipment uses ozone generator, can oxidation flocculating agent, degradation organic matter and improve the utilization ratio and the dissolution efficiency of ozone.
(4) The utility model discloses application scope is wide, not only is applicable to beasts and birds waste water, is applicable to equally to the very high chemical wastewater of COD.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a process flow diagram of the present invention.
the reference numerals shown in the figures are as follows:
Detailed Description
As shown in figure 1, the device for treating livestock and poultry wastewater by ozone nano-bubble air flotation comprises a stabilized voltage power supply 1, a reaction tank and an ozone generator 10.
Separate for the electrolytic bath 3 that communicates in proper order by the first baffle 5 and the second baffle 12 of vertical setting in the reaction tank, air supporting pond 6 and clean water basin 11, electrolytic bath 3 is the rectangle, be equipped with water inlet 2 on its pool wall, set up the plate electrode mount in the electrolytic bath 3, the plate electrode mount includes the support horizontal pole of vertical curb plate and bottom, the curb plate that is located 2 one sides of water inlet is higher than the water inlet, 4 vertical insertions of plate electrode are installed in the mount, negative pole and positive pole are the metal sheet that can produce the deposit with the phosphate radical, positive pole and negative pole are aluminum plate in this embodiment, negative pole and positive pole interval arrangement, set up to a plurality of groups, negative pole and positive pole all are connected to the constant voltage power supply 1 that is located 3 outer of electrolytic bath, interval between the adjacent plate electrode is 1 ~ 3cm, the effective area and the electrolytic: 1m2/m3. The bottom of the electrolytic cell is provided with a mud bucket, the bottom of the mud bucket is provided with a mud discharge port, and the mud precipitated in the electrolytic cell is discharged from the mud discharge port. Wastewater enters the electrolytic cell from the water inlet, then enters the gap between the electrode plates from the bottom of the electrode plates, and then flows out from the top, and finally overflows into the air floatation cell.
the air flotation tank 6 is rectangular and is arranged close to the electrolytic tank 3, the water treated by the electrolytic tank 3 overflows from the top of the baffle 5 and enters the air flotation tank 6, the inorganic ceramic membrane aeration plate 14 is arranged at the bottom of the air flotation tank 6, the inorganic ceramic membrane aeration plate is arranged at the bottom of the air flotation tank 6 by the ceramic membrane fixing frame 15 fixed on the first baffle, and the inorganic ceramic membrane aeration plate is arranged at the bottom of the air flotation tank 6 by the ceramic membrane fixing frameThe aeration plate is the cavity board, and the inner chamber passes through the ozone generator 10 outside the hose connection air supporting pond, and the average aperture of inorganic ceramic membrane aeration plate is 40 ~ 130nm, and the porosity is 30 ~ 50%, and the horizontal projection area and the air supporting pond volume ratio of inorganic ceramic membrane aeration plate are 1: (3 to 8) m2/m3. Air supporting bottom of the pool portion and be close to second baffle department and set up air supporting separation swash plate 13, the slope of air supporting separation swash plate sets up, the bottom is fixed in on the air supporting bottom plate, the topside to 12 side inclinations of second baffle and with the second baffle between reserve clearance, the water hole of crossing of intercommunication air supporting pond and clean water basin is located second baffle 12 and is less than the top height department of air supporting separation swash plate, second baffle top is buckled and is linked up a scum groove 8 that is located between air supporting pond and the clean water basin to the clean water basin orientation, the play water of air supporting processing passes through the effect of second baffle and air supporting separation swash plate 13, upper suspended solid gathers slag discharging groove 8, discharge through the slag discharge mouth in slag discharging groove again, clear water passes through water mouthful entering clean water basin.
The clean water tank 11 is rectangular, and livestock and poultry wastewater is discharged out of the equipment through the water outlet 9 after being treated.
Utilize the utility model discloses the process flow of handling beasts and birds waste water is shown in figure 2, and it at first carries out electrolytic treatment to intake, removes the organic matter in the sewage, and waste water after electrolytic treatment carries out the air supporting, further gets rid of the suspended solid and the colourity of aquatic, finally carries out the effluent and discharges.
The electrolytic treatment is carried out in an electrolytic cell 3, the pH value of the initial livestock wastewater is 7-9, the voltage is 1-5V, ozone is aerated into the wastewater through an inorganic membrane aeration plate, and the aeration amount is 10-20 g/h per ton of water.
The wastewater treated by the electrolytic cell 3 flows into the air floatation cell 6 through the first baffle 5, ozone is introduced into the air floatation cell 6, the wastewater is discharged from the water outlet 9 after the aeration reaction is finished, the voltage of the electrolytic cell 3 is regulated by the regulated power supply 1, and the ozone in the air floatation cell 6 is provided by the ozone generator 10.
Example 1
The treated water sample is livestock wastewater, and COD, SS and total phosphorus in the water sample are shown in Table 1.
(1) taking the original livestock and poultry wastewater, putting the wastewater into an electrolytic cell, maintaining the pH of the wastewater to be 7-9 by using lime, and adjusting the pH once every 30 min. An aluminum plate is used as a cathode and an anode, the distance between the anode and the cathode is 3cm, and the volume ratio of the effective area of the electrode plate to the volume of the electrolytic cell is 30: 1m2/m3At a voltage of 2V, the current density of the electrode plate is 0.1mA/cm-2And electrolyzing the water to obtain waste water with COD reduced to 7966mg/L and TP reduced to 32.1 mg/L.
(2) The wastewater after the electrolysis treatment enters a nano air flotation aeration tank, an alumina ceramic membrane is used as an aeration membrane, the average pore diameter of an inorganic ceramic membrane is 100nm, the porosity is 30%, and the ratio of the projection area of the inorganic ceramic membrane to the volume of the air flotation tank is 1: 8m2/m3The aeration amount of the ozone generator is 10g/h, the retention time is 0.5h, the residual COD of the final wastewater is 7031mg/L, TP is 16.4mg/L, and SS is 309 mg/L.
Example 2
the wastewater of example 1 was used as the treatment target.
(1) Taking the original livestock and poultry wastewater, putting the wastewater into an electrolytic cell, maintaining the pH of the wastewater to be 7-9 by using lime, and adjusting the pH once every 30 min. An aluminum plate is used as a cathode and an anode, the distance between the anode and the cathode is 2cm, and the volume ratio of the effective area of the electrode plate to the volume of the electrolytic cell is 12: 1m2/m3The current density of the electrode plate is 0.25mA/cm under the voltage of 3V-2After water is electrolyzed, COD in the wastewater is reduced to 7371mg/L, and TP is reduced to 26.4 mg/L.
(2) The nano air-flotation aeration tank is characterized in that a silicon carbide ceramic membrane is used as an aeration membrane, the average pore diameter of an inorganic ceramic membrane is 80nm, the porosity is 40%, and the ratio of the projection area of the inorganic ceramic membrane to the volume of the air-flotation tank is 1: 5m2/m3The aeration amount of the ozone generator is 15g/h per ton of water, the retention time is 1h, the final residual COD of the wastewater is 6340mg/L, TP is 3.2mg/L, and SS is 101 mg/L.
Comparative example 1
The wastewater of example 1 was used as the treatment target.
Without electrolytic dephosphorization, the wastewater directly enters a nano air-float aeration tank, and an alumina ceramic is used as an aeration membraneThe ceramic membrane, inorganic ceramic membrane's average aperture is 100nm, and the porosity is 30%, and inorganic ceramic membrane's projection area and air supporting cell volume ratio are 1: 8m2/m3The aeration amount of the ozone generator is 10g/h per ton of water, the retention time is 2h, the residual COD of the final wastewater is 8863mg/L, TP is 81.4mg/L, and SS is 426 mg/L.
Comparative example 2
The wastewater of example 1 was used as the treatment target.
Taking the original livestock and poultry wastewater, putting the wastewater into an electrolytic cell, maintaining the pH of the wastewater to be 7-9 by using lime, and adjusting the pH once every 30 min. An aluminum plate is used as a cathode and an anode, the distance between the anode and the cathode is 3cm, and the volume ratio of the effective area of the electrode plate to the volume of the electrolytic cell is 30: 1m2/m3At a voltage of 2V, the current density of the electrode plate is 0.1mA/cm-2And after the electrolysis is finished, air flotation aeration is not carried out, the COD of the wastewater is reduced to 4017mg/L, TP is reduced to 219mg/L, and SS is reduced to 452 mg/L.
Comparative example 3
The wastewater of example 1 was used as the treatment target.
(1) Taking the original livestock and poultry wastewater, putting the wastewater into an electrolytic cell, maintaining the pH of the wastewater to be 7-9 by using lime, and adjusting the pH once every 30 min. An aluminum plate is used as a cathode and an anode, the distance between the anode and the cathode is 3cm, and the volume ratio of the effective area of the electrode plate to the volume of the electrolytic cell is 30: 1m2/m3At a voltage of 2V, the current density of the electrode plate is 0.1mA/cm-2and electrolyzing the effluent to reduce COD of the wastewater to 7438mg/L and TP to 51.3 mg/L.
(2) And (3) feeding the electrolyzed wastewater into a nano air flotation aeration tank, and adopting a common air aeration device, wherein the aeration rate is 10g/h, the retention time is 0.5h, the final residual COD of the wastewater is 7024mg/L, the TP is 47.6mg/L, and the SS is 412 mg/L.
The above description is only the specific embodiments of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the relevant art can also make changes or modifications within the scope of the present invention.
Claims (10)
1. The utility model provides a device of beasts and birds waste water is handled in cooperation of electric flocculation ozone nanometer bubble air supporting, includes constant voltage power supply, reactor and ozone generator, its characterized in that, separate for communicating in proper order by the baffle of vertical setting in the reactor:
The electrolytic cell is internally provided with a plate electrode which is externally connected with the stabilized voltage power supply, and the wall of the electrolytic cell is provided with a water inlet;
the bottom of the air flotation tank is provided with a hollow inorganic ceramic membrane aeration plate, and the inner cavity of the inorganic ceramic membrane aeration plate is externally connected with the ozone generator through a pipeline;
and the wall of the clean water tank is provided with a water outlet.
2. the device according to claim 1, wherein the electrode plates are arranged in a plurality of groups which are vertically arranged and are parallel to each other, the cathode electrode plates and the anode electrode plates are alternately arranged, and the distance between the adjacent electrode plates is 1-3 cm.
3. The device according to claim 2, wherein the ratio of the effective area of all the electrode plates to the volume of the electrolytic cell is 10-30: 1m2/m3。
4. The device of claim 1, wherein the electrode plate is mounted in the electrolytic cell by an electrode plate holder, the electrode plate holder comprises a vertical side plate and a bottom support cross bar, and the side plate on the side close to the water inlet is higher than the water inlet.
5. The apparatus according to claim 1, wherein the inorganic ceramic membrane aeration plate is a hollow aeration plate made of a silicon carbide ceramic membrane, an alumina ceramic membrane, a zirconia ceramic membrane, a titania ceramic membrane, or a silica ceramic membrane.
6. The apparatus according to claim 1, wherein the inorganic ceramic membrane aeration plate has an average pore size of 40 to 130nm and a porosity of 30 to 50%.
7. The device according to claim 1, wherein the baffle between the electrolytic cell and the air flotation cell is a first baffle, and the inorganic ceramic membrane aeration plate is fixed at the bottom of the air flotation cell through fixing grooves fixed on the first baffle.
8. the device according to claim 1, wherein the ratio of the horizontal projection area of the inorganic ceramic membrane aeration plate to the volume of the air flotation tank is 1: (3 to 8) m2/m3。
9. The device as claimed in claim 1, wherein the baffle between the floatation tank and the clean water tank is a second baffle, a floatation separation inclined plate is arranged in the floatation tank and close to the clean water tank side, the bottom edge of the floatation separation inclined plate is fixed on the bottom plate of the floatation tank, the top edge of the floatation separation inclined plate is inclined towards the clean water tank side, and a gap is reserved between the top edge of the floatation separation inclined plate and the second baffle; and water passing holes for communicating the air floatation tank and the clean water tank are positioned on the second baffle and are lower than the vertical projection height of the air floatation separation inclined plate.
10. The apparatus of claim 9, wherein the top edge of the second baffle engages a scum trough located intermediate the flotation tank and the clean water tank.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111762928A (en) * | 2020-06-23 | 2020-10-13 | 湖南海尚环境生物科技股份有限公司 | Electro-catalytic treatment device and treatment process for livestock and poultry breeding wastewater |
| CN112358014A (en) * | 2020-11-01 | 2021-02-12 | 广东蓝绿科技有限公司 | Flocculation treatment process based on electric field |
| CN112687972A (en) * | 2020-12-25 | 2021-04-20 | 广东莞绿环保工程有限公司 | System and method for treating and recovering cobalt in lithium battery waste liquid |
| CN113582412A (en) * | 2021-08-17 | 2021-11-02 | 华北理工大学 | Advanced sewage treatment device |
| WO2023078105A1 (en) * | 2021-11-08 | 2023-05-11 | 上海特瑞思材料科技有限公司 | Sewage treatment system and method |
| CN116143250A (en) * | 2021-11-15 | 2023-05-23 | 中国石油天然气集团有限公司 | Anti-scale electric flocculation oxidation air floatation device |
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- 2019-03-08 CN CN201920294321.5U patent/CN209759191U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762928A (en) * | 2020-06-23 | 2020-10-13 | 湖南海尚环境生物科技股份有限公司 | Electro-catalytic treatment device and treatment process for livestock and poultry breeding wastewater |
| CN112358014A (en) * | 2020-11-01 | 2021-02-12 | 广东蓝绿科技有限公司 | Flocculation treatment process based on electric field |
| CN112687972A (en) * | 2020-12-25 | 2021-04-20 | 广东莞绿环保工程有限公司 | System and method for treating and recovering cobalt in lithium battery waste liquid |
| CN113582412A (en) * | 2021-08-17 | 2021-11-02 | 华北理工大学 | Advanced sewage treatment device |
| WO2023078105A1 (en) * | 2021-11-08 | 2023-05-11 | 上海特瑞思材料科技有限公司 | Sewage treatment system and method |
| CN116143250A (en) * | 2021-11-15 | 2023-05-23 | 中国石油天然气集团有限公司 | Anti-scale electric flocculation oxidation air floatation device |
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