CN217996881U

CN217996881U - Gas-lift biofilm reactor

Info

Publication number: CN217996881U
Application number: CN202221875327.XU
Authority: CN
Inventors: 程仁振; 姚阔为; 张鑫; 郑伟杰
Original assignee: Jinan Municipal Engineering Design and Research Institute Group Co Ltd
Current assignee: Jinan Municipal Engineering Design and Research Institute Group Co Ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-12-09
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses a gas lift formula biofilm reactor belongs to biofilm reactor technical field, has solved the distribution of dissolved oxygen in the current water treatment process, the serious restriction biofilm process wide application's such as poisonous harmful substance accumulation and row's mud problem, has the microorganism that realizes different dissolved oxygen conditions and hangs membrane and growth, improves the beneficial effect of treatment efficiency, and concrete scheme is as follows: the utility model provides a gas lift formula biofilm reactor, is equipped with the water inlet including the case of intaking, and the case top of intaking is equipped with the water inlet, and the delivery port of case of intaking is through the pipeline intercommunication reactor that has the peristaltic pump, is equipped with bottom open-ended baffle in the reactor, and the baffle is close to peristaltic pump one side and is the reaction zone, and the opposite side is the settling zone, and the settling zone lateral wall sets up the reactor delivery port, and the reaction zone packing has the sponge piece and is equipped with temperature control unit, and the reaction zone bottom is equipped with the aeration head, and case, peristaltic pump, temperature control unit are connected with the controller of intaking.

Description

Gas-lift biofilm reactor

Technical Field

The utility model belongs to the technical field of biofilm reactor technique and specifically relates to a gas lift formula biofilm reactor.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The biofilm method is a technology for decomposing pollutants by means of microorganisms attached to the surface of a carrier through adsorption of organic nutrients, diffusion of oxygen into the interior of a biofilm, biological oxidation generated in the biofilm and the like in the process of flowing sewage through the surface of the carrier. In the biofilm reactor, pollutants, dissolved oxygen and other substances need to be diffused to the surface of a biofilm through a liquid phase firstly and then enter the biofilm, but only the pollutants diffused to the surface and the inside of the biofilm can be decomposed and converted, and various metabolites are finally formed. And the biofilm reactor is increasingly used for wastewater treatment due to the advantages of small occupied area, low sludge yield, good effluent quality and the like. However, the inventor finds that some existing biofilm reactors can cause accumulation of sludge and toxic and harmful substances in a water treatment process, and meanwhile, biofilm formation and growth of microorganisms under different dissolved oxygen conditions cannot be realized, for example, CN102887589A discloses a nano aeration biofilm reactor, a sludge discharge port is formed at the bottom end of the reactor, the sludge discharge port is in a cone angle of 15-45 degrees, the reactor needs to be provided with an independent sludge discharge port to realize a sludge discharge process, so that subsequent independent treatment of the produced sludge is required, and the reactor is relatively complex in arrangement structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model provides a gas-lift biofilm reactor, simple structure, can avoid the accumulation of poisonous and harmful substance, can realize the microorganism biofilm formation and the growth of different dissolved oxygen conditions, improve the treatment effeciency.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

the utility model provides a gas lift formula biofilm reactor, includes the case of intaking, the case top of intaking is equipped with the water inlet, the delivery port of case of intaking is through the pipeline intercommunication reactor that has the peristaltic pump, is equipped with bottom open-ended baffle in the reactor, and the baffle is close to peristaltic pump one side and is the reaction zone, and the opposite side is the settling zone, and the settling zone lateral wall sets up the reactor delivery port, and the reaction zone packing has the sponge piece and is equipped with temperature control unit, and the reaction zone bottom is equipped with the aeration head, and case, peristaltic pump, temperature control unit and controller of intaking are connected.

According to the gas-lift biofilm reactor, the air compressor is arranged on the outer side of the reactor, the air compressor is sequentially connected with the flowmeter, the electromagnetic valve and the check valve and is connected with the aeration head inside the reactor through the pipeline, and the air compressor and the electromagnetic valve are connected with the controller.

According to the gas-lift biofilm reactor, the side wall of the top of the reaction zone is provided with the overflow port, a water inlet valve is arranged between the peristaltic pump and the reactor, the water outlet of the water inlet tank is arranged at the bottom of the water inlet tank, and the water outlet of the reactor is arranged at the top of the settling zone.

According to the gas-lift biofilm reactor, the side wall of the top of the settling zone is provided with the reactor sampling port, and the bottom of the settling zone is provided with the settling steep slope.

According to the gas-lift biofilm reactor, the stirring motor is arranged at the top of the water inlet tank, the output end of the stirring motor is connected with the stirring paddle in the water inlet tank, and the stirring motor is connected with the controller.

According to the gas-lift biofilm reactor, the position, close to the bottom side wall, of the water inlet tank is provided with the liquid level sensor, the liquid level sensor is higher than the water outlet of the water inlet tank, and the liquid level sensor is connected with the controller.

In the gas-lift biofilm reactor, the flow guide plate is longitudinally arranged in the middle of the reaction zone.

According to the gas-lift biofilm reactor, the pH detector is arranged outside the reactor, the probe of the pH detector extends into the reaction zone from the top of the reactor, and the pH detector is connected with the controller.

According to the gas-lift biofilm reactor, the dissolved oxygen detector is arranged outside the reactor, a probe of the dissolved oxygen detector extends into the reaction zone from the top of the reactor, and the dissolved oxygen detector is connected with the controller.

According to the gas-lift biofilm reactor, the temperature control unit is a constant-temperature heating rod, and the constant-temperature heating rod is connected with the controller.

Above-mentioned the utility model has the advantages as follows:

1. the utility model discloses a set up the case connection reactor of intaking, settling zone top lateral wall sets up the reactor delivery port, make the reactor be in the continuous flow state, the poisonous and harmful substance accumulation can be avoided to the type biomembrane that flows, can realize the microorganism of different dissolved oxygen conditions and hang membrane and growth, improve treatment efficiency, hydrophilic polyurethane sponge piece can be with sludge adsorption at its surface, can not produce the problem of sludge accumulation in the reactor, realize effective mud discharging through changing new filler, the reactor need not additionally to set up the mud discharging port.

2. The gas-lift biofilm reactor sewage treatment device enters a stable running state after completing a starting process, and then parameters such as aeration rate, water inlet speed and temperature of an automatic control system can be automatically changed according to needs, so that the applicability is high.

3. The setting of abrupt slope and baffle in the settling zone prevents that hydrophilic polyurethane sponge piece from being discharged the reactor, and the setting of guide plate divides into aerobic zone and anaerobic zone with the reaction zone, realizes that sewage circulates in aerobic zone with the anaerobic zone.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

FIG. 1 is a schematic view of the overall structure of a gas lift biofilm reactor of the present invention.

In the figure: the spacing or size between each other is exaggerated to show the location of the portions, and the illustration is merely for illustrative purposes.

Wherein: 1. the device comprises a reactor water inlet, 2 degrees of overflow ports, 3 degrees of guide plates, 4 degrees of reactor water outlets, 5 degrees of reactor sampling ports, 6 degrees of air compressors, 7 degrees of electromagnetic valves, 8 degrees of flow meters, 9 degrees of check valves, 10 degrees of aeration heads, 11 degrees of controllers, 12 degrees of regulators, 13 degrees of pH detectors, 14 degrees of dissolved oxygen detectors, 15 degrees of peristaltic pumps, 16 degrees of hydrophilic polyurethane sponge blocks, 17 degrees of stirring motors, 18 degrees of stirring paddles, 19 degrees of water inlet tank water outlets, 20 degrees of water inlets, and 21 degrees of liquid level sensors.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Just as the introduction of background art, some biofilm reactors among the prior art can cause the accumulation of mud and poisonous and harmful substance in water treatment process, can't realize the microorganism biofilm formation and growth under the different dissolved oxygen conditions simultaneously, for solving above-mentioned technical problem, the utility model provides a gas lift biofilm reactor.

Example one

The utility model discloses an among the typical embodiment, refer to fig. 1 and show, a gas lift biofilm reactor, including the case of intaking, the case of intaking is used for bearing the sewage or the waste water of required processing, top at the case of intaking is equipped with the water inlet, a water inlet 20 through the case of intaking supplements sewage to the case of intaking when sewage in the case of intaking reaches minimum water level, the delivery port of case bottom portion of intaking is through the reactor water inlet 1 of the pipeline intercommunication reactor bottom that has the peristaltic pump, wherein the reactor is the container of handling sewage, peristaltic pump 15 is arranged in discharging the reactor of the sewage in the case of intaking through case delivery port 19, still be equipped with inlet valve on the pipeline between peristaltic pump 15 and the reactor, in order to realize the switch of sewage drainage entering reactor, peristaltic pump 15 is connected with the controller 11 in the case outside of intaking, in order to control peristaltic pump operating condition through controller 11.

Furthermore, a baffle plate with a longitudinal opening at the bottom is arranged in the reactor, for example, as shown in fig. 1, the baffle plate divides the reactor into a reaction area and a settling area, the reaction area is connected with the settling area through the bottom opening, the opening size is 200mm multiplied by 100mm, one side of the baffle plate close to the peristaltic pump 15 is the reaction area, the other side is the settling area, the reaction area is mainly an area for treating sewage, the bottom of the settling area is provided with a settling steep slope, the slope is 60 degrees, the baffle plate is used for guiding the settling of the filler and preventing the filler from being discharged out of the reactor, and meanwhile, the baffle plate with the opening at the bottom also has a certain blocking effect on the filler.

It is understood that the baffle plate may be inclined as long as the bottom is open.

The reactor of this embodiment is a transparent box body with an open top, made of organic glass material, and has a total effective volume of 12L, a length, a width and a height of 350 × 200 × 250mm, an effective volume of 10L in the reaction zone and an effective volume of 2L in the settling zone.

When adding the filler to the reactor, can directly add from the open-top of reactor, directly throw in the filler from the opening to the reaction zone, the reaction zone top lateral wall is equipped with overflow mouth 2, prevents that the sewage in the inlet tank from discharging the reactor and overflowing from the open-top of reactor to probably lead to the filler to be discharged.

The reactor is externally provided with an air compressor 6, the output end of the air compressor 6 is connected with a flow meter 8 through a pipeline, the flow meter 8 is connected with an aeration head 10 inside the reactor through a pipeline, the flow meter is used for detecting the gas flow, a solenoid valve 7 and a check valve 9 are further arranged on the pipeline between the flow meter 8 and the aeration head 10, the check valve is arranged close to the aeration head, the air compressor and the solenoid valve are connected with a controller, the air compressor is controlled by the air controller to move, and meanwhile, whether the solenoid valve is aerated or not is controlled by controlling the switch of the solenoid valve, and the check valve is used for preventing gas from flowing back.

The middle of the reaction zone is longitudinally provided with a guide plate 3 with the height of 100mm and the width of 200mm, the reaction zone is divided into an aerobic zone and an anaerobic zone by the guide plate 3, the bottom of the guide plate 3 and the bottom wall of the reactor are also provided with a flow channel, and the circulation of sewage in the aerobic zone and the anaerobic zone is realized.

A pH detector 13 is arranged outside the reactor, a probe of the pH detector extends into the reaction zone from the opening at the top of the reactor, the probe of the pH detector 13 is longitudinally arranged and connected with a controller 11, a dissolved oxygen detector 14 is also arranged outside the reactor, the probe of the dissolved oxygen detector 14 extends into the reaction zone from the opening at the top of the reactor, the dissolved oxygen detector 14 is connected with the controller, and the probe of the dissolved oxygen detector and the probe of the pH detector are arranged in parallel.

In order to keep the temperature in the reaction zone constant, a temperature control unit is arranged in the reactor, the temperature control unit comprises a constant temperature heating rod, the constant temperature heating rod is connected with a controller, the constant temperature heating rod is connected with the controller through a regulator 12, and the regulator 12 can set a temperature value.

Be equipped with reactor sample connection 5 at settling zone top lateral wall, settling zone top lateral wall still sets up the reactor delivery port, and reactor delivery port 4 of this embodiment sets up in 5 tops of reactor sample connection, and the reactor sample connection is used for the sample detection sewage treatment quality, and reactor delivery port 4 is used for the log raft play that will handle.

In order to prevent the gathering of the sludge settlement of case sewage of intaking, set up agitator motor 17 at the case top of intaking, the sealed setting in case top of intaking, agitator motor output is connected the inside stirring rake 18 of case of intaking, agitator motor 17 connection director 11, through the rotational speed of controller 11 control agitator motor 17, the case of intaking is close to bottom lateral wall department and is equipped with level sensor 21, and level sensor 21 is higher than the delivery port of case of intaking, level sensor 21 connection director gives the controller with signal transmission when the sewage in the case of intaking reaches minimum water level to supply sewage to the case of intaking through case water inlet 20, case effective volume 70L of intaking.

The controller of this embodiment controls the solenoid valve to open and close according to the dissolved oxygen concentration that dissolved oxygen detector detected, and then makes the air that air compressor produced blow into the reaction zone from the aeration head behind the flowmeter. In the operation process, constant temperature control is realized through a constant temperature heating rod, a pH detector 13 and a dissolved oxygen detector 14 are arranged in the reactor, and a control end is connected with an automatic control system to monitor data and adjust; the water is fed in through a peristaltic pump 15, the filler is a modified hydrophilic polyurethane sponge block 16 with the size of 2mm multiplied by 2mm, and the filling rate is 25-40%. The hydrophilic polyurethane sponge block 16 can adsorb sludge on its surface, and thus the problem of accumulation of sludge in the reactor does not occur.

The electromagnetic valve is a normally closed electromagnetic valve, namely is in a closed state under the condition of no power supply, when the sewage treatment device of the gas-lift type bio-membrane reactor starts to operate, activated sludge is manually added into the reactor, a water inlet peristaltic pump and a water inlet valve of the reactor are opened, water is filled into the reactor, when the water level of the reactor reaches the highest set water level, namely water is discharged from an overflow port, water inlet is stopped, and an air compressor, the electromagnetic valve, a pH detector, a constant temperature heating rod and a dissolved oxygen detector are opened, namely the reactor is in a stuffy aeration biofilm formation state at the moment.

And after the stuffy aeration biofilm formation state is finished, starting a stirring motor, a peristaltic pump, a water inlet valve and a water outlet valve of the water inlet tank, and discharging sewage in the water inlet tank into the reactor to enable the reactor to be in a continuous flow state. The liquid level of the water inlet tank is controlled by a liquid level controller in the continuous operation stage, and the automatic alarm and the manual water supply are carried out when the liquid level is lower than the lowest water level. The treated water is finally discharged out of the whole system.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a gas lift formula biofilm reactor, a serial communication port, including the case of intaking, the case top of intaking is equipped with the water inlet, and the delivery port of case of intaking is through the pipeline intercommunication reactor that has the peristaltic pump, is equipped with bottom open-ended baffle in the reactor, and the baffle is close to peristaltic pump one side and is the reaction zone, and the opposite side is the settling zone, and the settling zone lateral wall sets up the reactor delivery port, and the reaction zone packing has the sponge piece and is equipped with temperature control unit, and the reaction zone bottom is equipped with the aeration head, and case, peristaltic pump, temperature control unit are connected with the controller of intaking.

2. The gas-lift biofilm reactor of claim 1, wherein an air compressor is arranged on the outer side of the reactor, the air compressor is connected with a flow meter, an electromagnetic valve and a check valve in sequence and is connected with an aeration head inside the reactor through a pipeline, and the air compressor and the electromagnetic valve are connected with the controller.

3. A gas-lift biofilm reactor according to claim 1, wherein the top side wall of said reaction zone is provided with an overflow port, a water inlet valve is provided between said peristaltic pump and said reactor, a water outlet of said water inlet tank is provided at the bottom of said water inlet tank, and a water outlet of said reactor is provided at the top of said settling zone.

4. A gas-lift biofilm reactor according to claim 1, wherein the side wall of the top of the settling zone is provided with a reactor sampling port and the bottom of the settling zone is provided with a steep settling slope.

5. The gas-lift biofilm reactor of claim 1, wherein a stirring motor is arranged at the top of the water inlet tank, the output end of the stirring motor is connected with a stirring paddle inside the water inlet tank, and the stirring motor is connected with the controller.

6. The gas-lift biofilm reactor of claim 1, wherein a level sensor is provided in the water inlet tank near the bottom side wall, the level sensor being higher than the water outlet of the water inlet tank, the level sensor being connected to the controller.

7. A gas-lift biofilm reactor according to claim 1, wherein a baffle is arranged longitudinally in the middle of said reaction zone.

8. The gas-lift biofilm reactor of claim 1, wherein a pH detector is arranged outside the reactor, a probe of the pH detector extends into the reaction zone from the top of the reactor, and the pH detector is connected with the controller.

9. The gas-lift biofilm reactor of claim 8, wherein a dissolved oxygen detector is arranged outside the reactor, a probe of the dissolved oxygen detector extends into the reaction zone from the top of the reactor, and the dissolved oxygen detector is connected with the controller.

10. The gas-lift biofilm reactor of claim 9, wherein said temperature control unit is a thermostatically heated rod connected to said controller.