CN111777177B - Integrated micro-power sewage treatment device based on UASB reactor - Google Patents
Integrated micro-power sewage treatment device based on UASB reactor Download PDFInfo
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- CN111777177B CN111777177B CN202010435516.4A CN202010435516A CN111777177B CN 111777177 B CN111777177 B CN 111777177B CN 202010435516 A CN202010435516 A CN 202010435516A CN 111777177 B CN111777177 B CN 111777177B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
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- C02F2301/043—Treatment of partial or bypass streams
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Abstract
The invention belongs to the technical field of sewage treatment, and particularly relates to an integrated micro-power sewage treatment device based on a UASB (upflow anaerobic sludge blanket) reactor, which comprises a tank body and a water inlet pipe, wherein a drainage region, a steam-water separation region and a biochemical reaction region are sequentially arranged in the tank body from top to bottom; the device is characterized in that a steam-water separator and at least one air stripping pipe connected with the steam-water separator are arranged in the steam-water separation region, the water outlet end of the air stripping pipe extends into the central cylinder to realize nitrifying liquid reflux, and the air stripping pipe is provided with an air stripping adjusting valve used for adjusting the nitrifying liquid reflux amount. The invention realizes the reflux of the nitrified liquid by arranging the gas stripping pipe, the aeration device and the central cylinder, and the gas stripping pipe is provided with the gas stripping adjusting valve to realize the adjustment of the reflux amount of the nitrified liquid.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to an integrated micro-power sewage treatment device based on a UASB (upflow anaerobic sludge blanket) reactor.
Background
The biochemical treatment of sewage is continuous or intermittent. The continuous treatment is generally carried out in a biochemical tank and a secondary sedimentation tank as monomers. The biochemical tank is in a rectangular form, the secondary sedimentation tank is in a circular radial flow type, and the circular radial flow type can fully utilize the sedimentation principle. The biochemical reaction tank for intermittent treatment, such as CASS tank, is divided into several periods each day, and each period comprises the steps of water feeding, aeration, sedimentation, standing and the like. The two types of biochemical treatment have more structures, high lifting height and larger occupied area.
The integrated sewage treatment equipment integrates all treatment steps, can effectively reduce the occupation of space and improve the treatment efficiency, and has wide application.
The prior art discloses a patent document with the name of 'an aerobic biological fluidized bed sewage treatment device and process', application publication No. CN 110606631A and application publication No. 2019.12.24, which comprises a sealed reactor, wherein an aeration unit, a central cylinder and a three-phase separation unit are respectively arranged in the reactor from bottom to top; the central cylinder is provided with a water inlet pipe, and the water inlet pipe penetrates through the reactor and the central cylinder and enters the interior of the central cylinder; the aeration of the aeration unit faces between the outer wall of the central cylinder and the inner wall of the reactor; the three-phase separation unit, the inner wall of the reactor and the sealing top surface enclose a water outlet sedimentation area; the three-phase separation unit, the inner wall and the bottom surface of the reactor enclose a reaction zone, and immobilized microorganism carriers are contained in the reaction zone; the reactor at the upper part of the effluent settling zone is connected with an effluent unit; and the sealed top surface of the three-phase separation unit, which is in contact with the reactor, is connected with an exhaust unit.
The above prior art realizes the internal circulation of the microorganism attachment carrier in the reactor by the cooperation of the three-phase separation unit and the central cylinder. However, the above-mentioned backflow of the microorganism-attached carriers in the prior art is realized by the gravity thereof, and the amount of the backflow cannot be adjusted, which causes a difference in the quality of the discharged water, and is inconvenient to use in different environments.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an integrated micro-power sewage processor based on a UASB (upflow anaerobic sludge blanket) reactor, wherein the liquid level of nitrified liquid is lifted by arranging an aeration device and an air stripping pipe connected with a steam-water separator, the liquid level of the nitrified liquid is also lifted, a central cylinder with the lower end extending into a biochemical reaction area and the upper end higher than the water level of a drainage area is arranged to realize the reflux of the nitrified liquid, and meanwhile, the air stripping pipe is provided with an air stripping adjusting valve to realize the adjustment of the reflux amount of the nitrified liquid.
In order to achieve the purpose, the technical scheme of the invention is as follows: the integrated micro-power sewage treatment device based on the UASB reactor comprises a tank body and a water inlet pipe, wherein a drainage area, a steam-water separation area and a biochemical reaction area are sequentially arranged in the tank body from top to bottom, a central cylinder with the upper end overhanging to a water level higher than the drainage area and the lower end overhanging to the biochemical reaction area and an aeration device in the biochemical reaction area are also arranged in the tank body; the device is characterized in that a steam-water separator and at least one air stripping pipe connected with the steam-water separator are arranged in the steam-water separation region, the water outlet end of the air stripping pipe extends into the central cylinder to realize nitrifying liquid reflux, and the air stripping pipe is provided with an air stripping adjusting valve used for adjusting the nitrifying liquid reflux amount.
Preferably, the gas lift pipe comprises a vertical pipe connected with the steam-water separator and a horizontal pipe communicated with the vertical pipe and the central cylinder, and the horizontal pipe is higher than the water level of the drainage area.
Preferably, at least one emptying pipe connected with the steam-water separator is further arranged in the steam-water separation area.
Preferably, the water inlet pipe penetrates through the tank body and the central cylinder and extends into the central cylinder.
Preferably, the part of the water inlet pipe passing through the tank body is higher than the water level of the water drainage area.
Preferably, the delivery port department of inlet tube is provided with filters the piece, the delivery end portion of inlet tube stretches into in filtering the piece, filter the piece and be used for holding back inlet tube exhaust dross and grit.
Preferably, a sludge hopper connected to the inner wall of the tank body is further arranged in the biochemical reaction area.
Preferably, the sludge hopper is connected with a sludge return pipe communicated with the biochemical reaction zone, and the sludge return pipe is provided with a regulating valve.
Preferably, an inclined plate is arranged above the sludge hopper.
Preferably, the sewage treatment device comprises a ladder stand connected to the outer wall of the tank body.
The technical scheme adopted by the invention has the beneficial effects that:
a central cylinder is arranged in a tank body, the lower end of the central cylinder is suspended into a biochemical reaction zone, the upper end of the central cylinder is higher than a water outlet weir, and is provided with a gas stripping pipe, the water outlet end of the gas stripping pipe extends into the central cylinder, the gas stripping pipe is connected with a steam-water separator, the residual gas after the gas is introduced into an aeration device for biochemical reaction enters the steam-water separator, and the residual gas lifts the liquid level in the gas stripping pipe and flows back into the central cylinder, so that the back flow of the nitrified liquid is realized, and the internal circulation in the reactor is completed; meanwhile, an additional power source is not needed in the internal circulation process, and the internal circulation process is realized only by using the residual energy of the introduced gas, so that the energy consumption is saved, and the utilization rate of the introduced gas is improved; be provided with the gas stripping governing valve on the gas stripping pipe, adjust the aperture of gas stripping governing valve in order to realize the regulation to the gas stripping flow, and then realize the regulation to nitrify liquid reflux, when this reactor is handled the sewage of different quality of water like this, can adjust nitrify liquid reflux through the gas stripping governing valve, and then realize stabilizing the problem of water quality of water, the suitability is stronger.
Drawings
FIG. 1 is a schematic view of an embodiment of an integrated micro-power wastewater treatment apparatus based on a UASB reactor.
In the figure 1, 1-tank body, 2-effluent weir, 3-water distribution system, 31-dense sieve basket, 32-water inlet pipe, 33-central cylinder, 4-steam-water separation zone, 41-support, 42-steam-water separator, 421-evacuation pipe, 422-air stripping pipe, 4221-air stripping regulating valve, 4222-vertical pipe, 4223-horizontal pipe, 5-biochemical reaction zone, 51-inclined plate, 52-sludge hopper, 521-sludge reflux valve, 522-sludge reflux pipe, 523-sludge discharge valve, 53-microporous aerator, 531-aeration pipe, 6-inspection hole and 7-ladder stand.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all embodiments, and do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The integrated micro-power sewage treatment device based on the UASB reactor realizes the liquid level lifting of nitrified liquid by arranging the aeration device and the air stripping pipe connected with the steam-water separator, is provided with the central cylinder with the lower end extending into the biochemical reaction area and the upper end higher than the water level of the drainage area, realizes the reflux of the nitrified liquid, and is provided with the air stripping adjusting valve on the air stripping pipe to realize the adjustment of the reflux amount of the nitrified liquid. When sewage with different water qualities is treated, the effluent quality can be stabilized by adjusting the reflux quantity of the nitrifying liquid.
It is noted that the sewage is converted into water mixed with sludge after biochemical treatment of the sludge, namely nitrifying liquid.
The specific embodiment is as follows:
example 1 as shown in fig. 1, an integrated micro-power wastewater treatment apparatus based on a UASB reactor includes a tank 1 and a water inlet pipe 32. The outlet end of the inlet pipe 32 extends into the tank 1. The tank body 1 is internally provided with a drainage area, a steam-water separation area 4 and a biochemical reaction area 5 from top to bottom in sequence. The drainage area includes an effluent weir 2. The water outlet weir 2 is an annular structure arranged along the inner wall of the tank body 1 in a circle, and the water outlet weir 2 is fixed on the inner wall of the tank body 1.
The tank 1 is also provided with a central barrel 33 and an aeration device. The central cylinder 33 is arranged at the central shaft position of the tank body 1, and the lower end of the central cylinder 33 extends into the biochemical reaction area 5 at a position close to the bottom of the tank body 1. The upper end of the central cylinder 33 is arranged higher than the effluent weir 2. The aeration device is positioned at the bottom of the tank body 1. The aeration device provides oxygen for biochemical reaction, and aerobic biochemical treatment is conveniently carried out. Meanwhile, the bubbles generated by the aeration device promote the upward flow of the sludge and the water.
As an example of this embodiment, the aeration device employs a micro-porous aerator 53. The microporous aerator 53 adopts a disc type microporous aeration head. The microporous aerator 53 is connected with an aeration pipe 531 which penetrates out of the tank body 1, and the aeration pipe 531 is connected with a fan.
In other embodiments, the difference from the above embodiments is that the micro-porous aerator 53 uses a micro-porous aeration pipe as the micro-porous aerator 53.
The steam-water separation area is internally provided with a steam-water separator 42, an air stripping pipe 422 and an emptying pipe 421. More specifically, the steam separator 42 is connected to the tank 1 through the bracket 41. The gas stripping pipe 422 and the emptying pipe 421 are provided in plurality, and the gas stripping pipe 422 and the emptying pipe 421 are connected to the upper end of the steam-water separator 42.
As an example of the present embodiment, the steam-water separator 42 employs a three-phase separator. The three-phase separator is used for separating sludge, water and gas.
The sewage and the sludge are mixed in the biochemical reaction area 5, and the oxygen sludge provided by the aeration device biologically purifies the sewage, and in the process, gas generated by the biological reaction, the residual amount of the gas introduced by the aeration device, the sludge and water form a gas-solid-liquid mixture. The steam-water separator 42 is used to separate sludge, water, and gas. Gas is discharged upwards from the gas stripping pipe 422 and the emptying pipe 421; the sludge and the water upwards pass through the three-phase separator, and the sludge begins to precipitate and slides from gaps of the three-phase separator to return to the biochemical reaction area 5 because no gas disturbance exists above the three-phase separator; the water after the sludge sedimentation is discharged out of the tank body 1 from the effluent weir 2.
The stripper tubes 422 include vertical tubes 4222 aligned with the direction of the evacuation tubes 421 and horizontal tubes 4223. Cross tube 4223 is in communication with standpipe 4222. The end of cross tube 4223 remote from standpipe 4222 extends into central barrel 33. More specifically, the cross tube 4223 is slightly higher than the effluent weir 2. The vertical pipe 4222 is used for discharging gas separated by the steam-water separator 42, the liquid level in the vertical pipe 4222 is higher than the liquid level outside the vertical pipe 4222 under the action of gas driving, nitrified liquid flows into the horizontal pipe 4223 through the vertical pipe 4222 and is discharged into the central cylinder 33 from the horizontal pipe 4223, the backflow of the nitrified liquid is realized, namely, the backflow of the AO (anoxic and aerobic) process nitrified liquid without being driven by mechanical equipment is realized, and the energy consumption is saved. Meanwhile, the nitrifying liquid flows back into the central cylinder 33, which is helpful for mixing the nitrifying liquid with the sewage.
In order to conveniently control the reflux amount of the nitrified liquid, a gas stripping regulating valve 4221 is arranged on the vertical pipe 4222 at a position higher than the horizontal pipe 4223. The opening degree of the gas stripping adjusting valve 4221 is adjusted to adjust the gas displacement of the gas stripping pipe 422, and further adjust the reflux quantity of the nitrified liquid. When the reactor is used for treating sewage, if the quality of the sewage is good, the opening degree of the gas stripping adjusting valve 4221 is reduced, the lifting effect of the gas entering the gas stripping pipe 422 on the liquid level is small, and the return flow of the nitrified liquid is small; if the quality of the sewage is poor, the opening degree of the air lift adjusting valve 4221 is adjusted, the lifting effect of the gas entering the air lift pipe 422 on the liquid level is large, and the return flow of the nitrified liquid is large; in conclusion, the effluent quality of the reactor is controlled.
In the embodiment, when the integrated micro-power sewage treatment device based on the UASB reactor is used, the water inlet pipe 32 is connected with a sewage discharge pipe. The sewage is biochemically treated in the biochemical reaction zone 5, and the treated gas-solid phase mixed liquid upwards enters the steam-water separation zone 4. After the gas-solid phase mixed liquid is subjected to three-phase separation in the steam-water separation zone 4, water is discharged from the effluent weir 2, sludge is precipitated and then falls back to the biochemical reaction zone 5, and gas passes through the gas stripping pipe 422 and the emptying pipe 421. The gas entering the gas stripping pipe 422 has a lifting effect on the liquid level, so that the nitrified liquid flows back into the central cylinder 33, and due to the flowing potential energy effect and the gravity effect of the nitrified liquid, the nitrified liquid moves downwards along the central cylinder 33 and overflows from the lower end of the central cylinder 33 again, and the internal circulation of the nitrified liquid is realized; the power of the internal circulation process is only the residual air quantity of the aeration device, no additional power is needed, and the energy is saved. Because the upper end of the central cylinder 33 is higher than the water outlet weir 2, the nitrified liquid can only be discharged outwards from the bottom of the central cylinder 33 after entering the central cylinder 33, and the phenomenon of short flow of the nitrified liquid is avoided. Meanwhile, the arrangement of the gas stripping adjusting valve 4221 on the gas stripping pipe 422 facilitates the realization of the control of the reflux quantity of the nitrifying liquid, and further can strictly control the effluent quality of the reactor.
Further, a water inlet pipe 32 penetrates into the tank body 1, and one end of the water inlet pipe 32 penetrating into the tank body 1 extends into the central cylinder 33. The water inlet pipe 32 and the central cylinder 33 constitute a water distribution system. The sewage in the inlet pipe 32 enters the central cylinder 33, flows downward along the central cylinder 33 under the action of gravity, and overflows from the lower end of the central cylinder 33. Moreover, as the upper end of the central cylinder 33 is higher than the effluent weir 2, the sewage can only be discharged outwards from the bottom of the central cylinder 33 after entering the central cylinder 33, thereby avoiding the phenomenon of short-flow of the sewage. Meanwhile, the sewage enters the central cylinder from the water inlet pipe 32, and the liquid in the central cylinder 33 is accelerated to flow downwards under the action of the water flow potential energy.
Further, the inlet pipe 32 is horizontally disposed, and the height of the inlet pipe 32 is slightly higher than the outlet weir 2. The inlet tube 32 lug connection blow off pipe because the inlet tube 32 is higher than the setting of play mill weir 2, and the water level of intaking is higher than out the water level, need not to use the elevator pump between inlet tube 32 and the blow off pipe, more energy saving consumed the festival.
Further, in order to reduce damage to the reactor from large volumes of impurities in the effluent, a dense screen basket 31 is provided within the central cylinder 33. The dense sieve lifting basket 31 is fixed with the inner wall of the central cylinder 33. The water outlet end of the water inlet pipe 32 extending into the central cylinder 33 extends into the dense sieve basket 31. In the sewage purification process, the dense-screen basket 31 filters and intercepts scum and coarse sand carried in the sewage.
Further, a sludge hopper 52 is arranged in the biochemical reaction zone 5. The sludge hopper 52 adopts a ring-shaped conical structure which is arranged along the inner wall of the tank body 1 in a circle. The sludge hopper 52 is arranged near the middle of the biochemical reaction zone 5. Along with the purification treatment of the sewage, the sludge in the biochemical reaction area 5 is gradually increased, part of the sludge in the biochemical reaction area 5 is collected in the sludge hopper 52, and the sludge collected in the sludge hopper 52 does not participate in the biochemical reaction, so that the sludge amount in the biochemical reaction area 5 is controlled.
More specifically, a sludge discharge pipe is arranged on the outer wall of the tank body 1 at the position of the sludge hopper 52, the sludge discharge pipe is communicated with the sludge hopper 52, and a sludge discharge valve 523 is arranged on the sludge discharge pipe. The sludge discharge valve 523 facilitates periodic sludge discharge from the sludge hopper 52, sampling for testing, or decontamination of sludge drying plants.
Further, the sludge hopper 52 is communicated with a sludge return pipe 522, and the other end of the sludge return pipe 522 is communicated with the inside of the tank 1. The sludge return pipe 522 is provided outside the tank 1. The sludge return pipe 522 is provided with a sludge return valve 521.
As an example of the present embodiment, the sludge return valve 521 is a solenoid valve. Controlling the return flow of the sludge by the opening degree of the electromagnetic valve:
1. when the quality of the sewage is poor and the water quantity is large, the electromagnetic valve is completely opened. Sludge in the annular conical sludge hopper 52 flows back to the bottom of the tank body 1 under the action of gravity, is lifted by the aeration micro bubbles and circulates in the whole tank, and all sludge microorganisms participate in reaction. More carbon source contaminants can be treated.
2. The sewage quality is good, the amount of organic pollutants is reduced when the water amount is small, and the opening degree of the electromagnetic valve is adjusted. Part of the sludge is accumulated in the sludge hopper 52 and the denitrification is enhanced. In addition, the valves of the partial aeration area can be closed, so that the biological activity of the sludge in the area is reduced, and the system requirements can still be met.
Further, an inclined plate 51 is provided above the sludge hopper 52. The swash plate 51 is fixed to the tank 1, and the upper end of the swash plate is inclined toward the middle of the tank 1. The inclined plates 51 are arranged in multiple layers, and the inclined plates 51 are used for improving the water stability of the sedimentation area and improving the sedimentation efficiency.
Furthermore, in order to conveniently overhaul the reactor, a ladder stand 7 is arranged on the outer wall of the tank body 1. Meanwhile, the top end of the tank body 1 is provided with an inspection hole 6. The position of the inspection hole 6 corresponds to the central cylinder 33, so that impurities in the dense-screen lifting basket 31 can be cleaned conveniently.
As an example of this embodiment, the material of the tank 1 is carbon steel, glass fiber reinforced plastic, stainless steel or other suitable materials.
As an example of the present embodiment, the gas-water separator 42 is made of glass fiber reinforced plastic, stainless steel or other organic materials.
As an example of this embodiment, the steam-water separation area 4 is 20% of the overall height of the tank 1. The biochemical reaction area is 65 percent of the whole height of the tank body 1.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the technical solution of the invention or to apply the concept and technical solution of the invention directly to other occasions without modification.
Claims (10)
1. The integrated micro-power sewage treatment device based on the UASB reactor comprises a tank body and a water inlet pipe and is characterized in that a drainage area, a steam-water separation area and a biochemical reaction area are sequentially arranged in the tank body from top to bottom, a central cylinder with the upper end overhanging to a water level higher than the drainage area and the lower end overhanging to the biochemical reaction area and an aeration device in the biochemical reaction area are also arranged in the tank body; a steam-water separator and at least one gas stripping pipe connected with the steam-water separator are arranged in the steam-water separation region, the water outlet end of the gas stripping pipe extends into the central cylinder to realize nitration liquid reflux, and the gas stripping pipe is provided with a gas stripping adjusting valve for adjusting nitration liquid reflux amount; the top end of the tank body is provided with an inspection hole, and the position of the inspection hole corresponds to the central cylinder.
2. The UASB reactor-based integrated micro-power sewage processor of claim 1, wherein the stripper tube comprises a vertical tube connected to the steam-water separator and a horizontal tube communicating the vertical tube and the central tube, the horizontal tube being higher than the water level of the drainage area.
3. The UASB reactor-based integrated micro-power sewage processor of claim 2, wherein the steam-water separation region is further provided with at least one emptying pipe connected to the steam-water separator.
4. An integrated UASB reactor based micropower sewage treatment plant according to claim 1 wherein the water inlet pipe extends through the tank and the central cylinder into the central cylinder.
5. The UASB reactor-based integrated micro-power sewage processor of claim 4, wherein the water inlet pipe passes through the tank body at a position higher than the water level of the water discharge area.
6. The UASB reactor-based integrated micro-power sewage processor of claim 5, wherein the water outlet of the water inlet pipe is provided with a filter element, the water outlet end of the water inlet pipe extends into the filter element, and the filter element is used for intercepting the scum and coarse sand discharged from the water inlet pipe.
7. The UASB reactor-based integrated micro-power sewage processor of claim 1, wherein a sludge hopper connected to the inner wall of the tank body is further arranged in the biochemical reaction zone.
8. The UASB reactor-based integrated micro-power sewage processor of claim 7, wherein the sludge hopper is connected with a sludge return pipe communicated with the biochemical reaction zone, and the sludge return pipe is provided with a regulating valve.
9. The UASB reactor-based integrated micro-power sewage processor of claim 8, wherein an inclined plate is arranged above the sludge hopper.
10. An integrated UASB reactor-based micropower sewage treatment plant as claimed in any of claims 1 to 9 which includes a ladder attached to the external wall of the tank.
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| CN100412008C (en) * | 2006-09-01 | 2008-08-20 | 清华大学 | Composite anaerobic reactor with inner circulation |
| CN201031174Y (en) * | 2007-05-21 | 2008-03-05 | 中国地质大学（武汉） | Intrinsic cycle three phase biological fluidized bed with precipitation hardening tipping plate |
| CN104045148B (en) * | 2014-07-09 | 2016-02-17 | 中国电建集团中南勘测设计研究院有限公司 | A kind of inner loop three phase fluidized bed reactor formula MBR membrane bioreactor |
| CN105293818A (en) * | 2015-06-09 | 2016-02-03 | 戴昕 | Method for treating ammonia-nitrogen wastewater through coupling of immobilization technology and CANON process |
| CN205222790U (en) * | 2015-09-29 | 2016-05-11 | 中石化炼化工程（集团）股份有限公司 | Gas lift formula three -phase circulation bed reactor |
| CN205473273U (en) * | 2016-03-31 | 2016-08-17 | 新疆桦骏昌科技有限公司 | Three -phase inner loop biological fluidized bed effluent disposal system |
| CN105819567A (en) * | 2016-05-11 | 2016-08-03 | 北京迅世达环保科技有限公司 | Self-circulation anaerobic reactor |
| CN207537218U (en) * | 2017-10-20 | 2018-06-26 | 西纯环保科技（上海）有限公司 | Air lift full-mixing type anaerobic reactor |
| CN207713494U (en) * | 2017-12-13 | 2018-08-10 | 中石化炼化工程（集团）股份有限公司 | Anoxic reacter and sewage disposal device |
| CN209210459U (en) * | 2018-09-26 | 2019-08-06 | 北京翰祺环境技术有限公司 | A kind of ozone fluidisation catalysis oxidizing tower |
| CN109824144B (en) * | 2019-04-10 | 2022-07-01 | 成都华凡科技有限公司 | Self-circulation anaerobic reactor |
| CN110589964A (en) * | 2019-09-24 | 2019-12-20 | 西安聚光环保科技有限公司 | Internal circulation high-efficiency denitrification biological denitrification filter tank |
| CN110606631A (en) * | 2019-10-24 | 2019-12-24 | 上海蓝科石化环保科技股份有限公司 | Aerobic biological fluidized bed sewage treatment device and process |
| CN110734200A (en) * | 2019-11-19 | 2020-01-31 | 南京大学盐城环保技术与工程研究院 | double-membrane three-phase internal circulation aeration biological fluidized bed and method for treating wastewater |
| CN110818141B (en) * | 2019-12-09 | 2024-08-09 | 相出净流智能科技(上海)有限公司 | Non-uniform flow field effect generating device for industrial wastewater treatment and working method thereof |
| CN111003806A (en) * | 2019-12-23 | 2020-04-14 | 河南建卓环保科技有限公司 | Novel AAO technology integration equipment |
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