CN114751526B - Seepage biological film purifying bed for degrading organic pollutants - Google Patents

Abstract

The invention discloses a seepage biological film purifying bed for degrading organic pollutants, which comprises a purifying bed barrel body, a placing structure arranged on the purifying bed barrel body, a mixing structure arranged on the purifying bed barrel body, a degrading structure arranged on the purifying bed barrel body, a conveying structure arranged on the purifying bed barrel body, an adding structure arranged on the purifying bed barrel body and a protecting structure arranged on the purifying bed barrel body and used for protecting; can be with organic pollutant liquid and air misce bene through the mixed structure, be convenient for carry structure and degradation structure's installation through placing the structure, carry the degradation purifying effect that the structure can improve organic pollutant, be convenient for change the microorganism through protective structure, play the guard action simultaneously, be convenient for the interpolation of additive through adding the structure to be convenient for improve the activity of microorganism, thereby improve degradation efficiency.

Description

Seepage biological film purifying bed for degrading organic pollutants

Technical Field

The invention relates to the technical field of sewage purification treatment, in particular to a seepage biological membrane purification bed for degrading organic pollutants.

Background

The biological membrane treatment method of sewage is an aerobic biological treatment technology of sewage which is parallel to an activated sludge method, the sewage contacts with a biological membrane, organic pollutants in the sewage are taken as nutrient substances, the sewage is purified by microorganisms on the biological membrane, and the microorganisms are multiplied.

At present, most of the microorganism attaching layers are in a block shape, the bottom ends of the microorganism attaching layers are in contact with and permeate organic pollutants, the contact area is small, the purification efficiency is affected, the organic pollutants are in contact with and mixed with oxygen in the air by adopting a stirring method or a direct air injection method, the effects are crossed, larger bubbles are easy to generate, the organic pollutant liquid is easy to flow unevenly by the larger bubbles, larger impact is easy to generate on the microorganism attaching layers, the microorganism attaching layers are easy to disintegrate, the method is inconvenient when additives are needed to be added, and the additives are needed to be added from the pumping positions of the organic pollutant liquid pump.

Disclosure of Invention

The invention provides a seepage biological film purifying bed for degrading organic pollutants in order to overcome the defects of the prior art.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides an organic pollutant degradation is with seepage biological membrane purification bed, including purifying the bed staving, locate the last structure of placing that is used for placing of purification bed staving, locate the mixed structure that is used for mixing organic pollutant liquid and air on the purification bed staving, locate the degradation structure that is used for seepage purification on the purification bed staving, locate the transport structure that is used for carrying liquid on the purification bed staving, locate the last additional structure that is used for adding the additive of purification bed staving, locate the last protective structure that is used for the protection of purification bed staving.

The placing structure comprises a reaction cavity arranged inside the top end of the purifying bed barrel body, a water cavity arranged inside the bottom end of the purifying bed barrel body and a discharge pipe penetrating through the side wall of the purifying bed barrel body, wherein the reaction cavity and the water cavity are communicated through the conveying structure, and liquid inside the reaction cavity can be discharged through the discharge pipe.

The utility model discloses a purifying bed, including the fixed shell that locates the inside bottom of water cavity, fixed motor, the turbine of locating the motor output of locating of fixed locating of inside bottom of purifying bed staving, the fixed inlet tube of locating on the fixed shell, the fixed intake pipe of locating on the fixed shell, locate a plurality of jet holes of inlet tube and intake pipe one end, the turbine is located the inside of fixed shell, turbine and fixed shell rotate and connect, inlet tube and intake pipe are inside to communicate through jet hole and fixed shell inside, inlet tube, intake pipe respectively with purifying bed staving fixed connection, inlet tube one end is "C" shape structure, intake pipe one end is "C" shape structure.

The utility model discloses a purifying bed body, including locating the inside interpolation room of purifying bed staving lateral wall, fixing the inlet pipe of locating purifying bed staving lateral wall, locating the spiral cover of inlet pipe one end, sliding locate the inside rubber block of purifying bed staving lateral wall, fixing the control lever of locating rubber block one end, locating a pair of dislocation hole on the rubber block, it has first spring to contradict between rubber block and the purifying bed staving, purifying bed staving is located to add between room and the inlet tube and is equipped with a pair of intercommunicating pore, add the inside liquid of room and can enter into in the inlet tube through intercommunicating pore and dislocation hole, screw thread connects soon between spiral cover and the inlet pipe, control lever and purifying bed staving sliding connection.

The degradation structure comprises a pair of fixed plates which are arranged at the upper end and the lower end of the reaction cavity in a sliding manner, and an inner fixed net and an outer fixed net which are fixedly arranged between the pair of fixed plates, wherein a microorganism adhesion layer is filled between the inner fixed net and the outer fixed net, and the fixed plates at the bottom end of the inner fixed net are in a circular ring shape.

The conveying structure comprises a fixed disc fixedly arranged inside a purifying bed barrel body, a water guide cylinder fixedly arranged at the top end of the fixed disc, a rubber ring slidably arranged on the water guide cylinder, a fourth spring fixedly arranged at the bottom end of the rubber ring, a plurality of water seepage holes arranged on the outer wall of the water guide cylinder, a rubber pad fixedly arranged inside the purifying bed barrel body, a fixed plate arranged at the bottom end of the conveying structure is abutted against the rubber pad, the fixed plate arranged at the bottom end of the conveying structure is abutted against the rubber ring, the water guide cylinder is sleeved with an internal fixed net, the water guide cylinder consists of two layers, and a section of a hollow chamber inside the water guide cylinder is of a U-shaped structure.

The protection structure comprises a protection cover which is rotationally arranged at the top end of the purifying bed barrel body, a limiting block which is slidably arranged at one end of the protection cover, a second spring which is fixedly arranged between the limiting block and the protection cover, and a limiting groove which is arranged at one end of the purifying bed barrel body.

The invention has the following advantages: can be with organic pollutant liquid and air misce bene through the mixed structure to do benefit to the microorganism and carry out aerobic respiration and decompose, namely: the water inlet pipe is connected with organic pollutant liquid, the air inlet pipe is connected with air, the motor is started, the motor drives the turbine to rotate in the fixed shell, the air and the organic pollutant liquid are sprayed onto the turbine in the fixed shell from the spray hole, the air and the organic pollutant liquid can be uniformly mixed by the rotation of the turbine, so that aerobic respiration of microorganisms is facilitated, oxygen is distributed more uniformly, vortex is formed, and the air and the organic pollutant liquid enter the water guide cylinder; through placing the installation that the structure is convenient for carry structure and degradation structure, carry the structure and carry out even transport with the organic pollutant liquid and the air after mixing to improve the degradation purifying effect of organic pollutant, be convenient for change microorganism through protective structure, play the guard action simultaneously, namely: the limiting block is pushed to be compressed by the second spring, the limiting block and the limiting groove are separated, the protective cover can be screwed out outwards, the protective cover plays a protective role, the protective cover can prevent rainwater from entering the inside of the purifying bed barrel body, so that microorganisms can be conveniently taken out and replaced, the microorganism attaching layer is fixed between the inner fixed net and the outer fixed net, the collapse of the microorganism attaching layer is avoided, the fixed plate is lifted by the lifting device, the whole microorganism attaching layer can be replaced, a new microorganism attaching layer is placed in the reaction cavity, the inner fixed net and the outer fixed net are beneficial to the permeation of organic pollutant liquid, the reaction cavity is used for placing the microorganism attaching layer, the water cavity is used for installing a turbine, so that certain organic pollutant liquid can be reserved, vortex flow is convenient to form, the liquid after being conveniently degraded through the discharge pipe, the fixed plate at the bottom is in a circular ring shape, the circular ring-shaped fixed plate is in contact with a rubber pad, the rubber pad plays a role of sealing, the liquid after being degraded in the reaction cavity is prevented from flowing into the inside the water cavity, the rubber ring is pushed by the fourth spring and is in contact with the bottom end of the circular ring-shaped fixed plate, so that the new microorganism attaching layer is placed in the reaction cavity, the inside the reaction cavity is filled into the inner fixed net, the air cylinder is polluted, the air is discharged from the inner side of the air cylinder, and reaches the air-polluted, and can reach the effect of the inside the air-polluted air-purifying machine through the inner cylinder, and can reach the effect of the air-purifying effect of the inside the air-purifying machine, and the air-polluted air-purifying effect is discharged through the inner cylinder, and the air-polluted through the inner layer, and the air-filter layer is discharged through the inside the air-polluted; the addition of the additive is facilitated through the addition structure, so that the activity of microorganisms is improved, and the degradation efficiency is improved, namely: when the additive is needed to be added to improve the activity of microorganisms in the microorganism attaching layer, the spiral cover is opened, the additive is poured into the feeding pipe, the additive enters the adding chamber along the feeding pipe, the spiral cover is screwed, the control rod is pressed, the control rod pushes the rubber block to slide, the first spring is compressed, the dislocation hole on the rubber block is communicated with the communication hole, so that the adding chamber is communicated with the water inlet pipe, negative pressure exists in the interior of the adding chamber due to the closed state of the spiral cover, the organic pollutant liquid in the water inlet pipe is contacted with the additive, and the additive is continuously diluted, so that the organic pollutant liquid reaches the microorganism attaching layer, and the activity of microorganisms is changed.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic diagram of the connection of the purification bed tub and the air inlet pipe.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is an enlarged view at B in fig. 2.

Fig. 5 is an enlarged view at C in fig. 2.

Fig. 6 is a schematic view of a connection structure of the external fixation net and the fixation plate.

Fig. 7 is a schematic diagram of the connection of the tub and the water inlet pipe.

Description of the embodiments

In order to make the present invention better understood by those skilled in the art, the following description of the technical solutions of the present invention will be made in detail, but not all embodiments of the present invention are apparent to some embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

As shown in fig. 1 to 7, a seepage biological film purifying bed for degrading organic pollutants comprises a purifying bed barrel body 1, a placing structure 5 arranged on the purifying bed barrel body 1 and used for placing, a mixing structure 2 arranged on the purifying bed barrel body 1 and used for mixing organic pollutant liquid and air, a degrading structure 6 arranged on the purifying bed barrel body 1 and used for seepage purification, a conveying structure 7 arranged on the purifying bed barrel body 1 and used for conveying liquid, an adding structure 3 arranged on the purifying bed barrel body 1 and used for adding additives, and a protecting structure 4 arranged on the purifying bed barrel body 1 and used for protecting.

The placing structure 5 comprises a reaction cavity 502 arranged in the top end of the purification bed barrel body 1, a water cavity 503 arranged in the bottom end of the purification bed barrel body 1 and a discharge pipe 501 penetrating through the side wall of the purification bed barrel body 1, the reaction cavity 502 and the water cavity 503 are communicated through the conveying structure 7, and liquid in the reaction cavity 502 can be discharged through the discharge pipe 501; the reaction chamber 502 is used for placing a microorganism attaching layer 601, and the water chamber 503 is used for installing the turbine 204, so that a certain amount of organic pollutant liquid can be reserved, the formation of vortex is facilitated, and the degraded liquid is conveniently discharged through the discharge pipe 501.

The mixing structure 2 comprises a fixed shell 206 fixedly arranged at the bottom end inside the water cavity 503, a motor 202 fixedly arranged at the bottom end inside the purifying bed barrel body 1, a turbine 204 fixedly arranged at the output end of the motor 202, a water inlet pipe 203 fixedly arranged on the fixed shell 206, an air inlet pipe 201 fixedly arranged on the fixed shell 206, and a plurality of spray holes 205 arranged at one end of the water inlet pipe 203 and one end of the air inlet pipe 201, wherein the turbine 204 is positioned inside the fixed shell 206, the turbine 204 is rotationally connected with the fixed shell 206, the water inlet pipe 203 and the air inlet pipe 201 are internally communicated with the fixed shell 206 through the spray holes 205, the water inlet pipe 203 and the air inlet pipe 201 are respectively fixedly connected with the purifying bed barrel body 1, one end of the water inlet pipe 203 is in a C-shaped structure, and one end of the air inlet pipe 201 is in a C-shaped structure; the water inlet pipe 203 is connected with organic pollutant liquid, the air inlet pipe 201 is connected with air, the motor 202 is started, the motor 202 drives the turbine 204 to rotate in the fixed shell 206, the air and the organic pollutant liquid are sprayed onto the turbine 204 in the fixed shell 206 from the spray holes 205, the turbine 204 can be rotated to enable the air and the organic pollutant liquid to be evenly mixed, so that aerobic respiration of microorganisms is facilitated, oxygen distribution is more even, vortex is formed, and the air and the organic pollutant liquid enter the water guide barrel 702.

The adding structure 3 comprises an adding chamber 305 arranged in the side wall of the purifying bed barrel body 1, a feeding pipe 302 fixedly arranged in the side wall of the purifying bed barrel body 1, a spiral cover 301 arranged at one end of the feeding pipe 302, a rubber block 304 slidably arranged in the side wall of the purifying bed barrel body 1, a control rod 303 fixedly arranged at one end of the rubber block 304, and a pair of dislocation holes 307 arranged on the rubber block 304, wherein a first spring 308 is abutted between the rubber block 304 and the purifying bed barrel body 1, a pair of communication holes 306 are arranged between the adding chamber 305 and the water inlet pipe 203 of the purifying bed barrel body 1, liquid in the adding chamber 305 can enter the water inlet pipe 203 through the communication holes 306 and the dislocation holes 307, the spiral cover 301 and the feeding pipe 302 are screwed by threads, and the control rod 303 is slidably connected with the purifying bed barrel body 1; when an additive is required to be added to improve the activity of microorganisms inside the microorganism attaching layer 601, the screw cap 301 is opened, the additive is poured into the feed pipe 302, the additive enters the adding chamber 305 along the feed pipe 302, the screw cap 301 is screwed, the control rod 303 is pressed, the control rod 303 pushes the rubber block 304 to slide, the first spring 308 is compressed, the dislocation hole 307 on the rubber block 304 is communicated with the communication hole 306, the adding chamber 305 is communicated with the water inlet pipe 203, the negative pressure exists inside the adding chamber 305 due to the closing state of the screw cap 301, the organic pollutant liquid inside the water inlet pipe 203 is contacted with the additive, and the additive is continuously diluted, so that the organic pollutant liquid reaches the microorganism attaching layer 601 along, and the activity of microorganisms is changed.

The degradation structure 6 comprises a pair of fixing plates 604 slidably arranged at the upper end and the lower end of the reaction cavity 502, an inner fixing net 602 and an outer fixing net 603 fixedly arranged between the pair of fixing plates 604, a microorganism adhesion layer 601 is filled between the inner fixing net 602 and the outer fixing net 603, and the fixing plates 604 at the bottom end of the inner fixing net 602 are ring-shaped; the microorganism adhesion layer 601 is fixed between the inner fixed net 602 and the outer fixed net 603, so that the microorganism adhesion layer 601 is prevented from collapsing, the fixing plate 604 is lifted through lifting equipment, the whole microorganism adhesion layer 601 can be replaced, a new microorganism adhesion layer 601 is placed in the reaction cavity 502, and the inner fixed net 602 and the outer fixed net 603 are beneficial to permeation of organic pollutant liquid.

The conveying structure 7 comprises a fixed disc 705 fixedly arranged in the purifying bed barrel 1, a water guide cylinder 702 fixedly arranged at the top end of the fixed disc 705, a rubber ring 706 slidably arranged on the water guide cylinder 702, a fourth spring 703 fixedly arranged at the bottom end of the rubber ring 706, a plurality of water seepage holes 701 arranged on the outer wall of the water guide cylinder 702, a rubber pad 704 fixedly arranged in the purifying bed barrel 1, wherein the fixed plate 604 at the bottom end is abutted against the rubber pad 704, the fixed plate 604 at the bottom end is abutted against the rubber ring 706, the water guide cylinder 702 is sleeved with the inner fixed net 602, the water guide cylinder 702 consists of two layers, and the section of a hollow chamber in the water guide cylinder 702 is in a U-shaped structure; the fixed plate 604 of bottom is the ring shape, ring shape fixed plate 604 will contradict with rubber pad 704, rubber pad 704 plays sealed effect, avoid the inside liquid inflow water cavity 503 after the reaction chamber 502 is inside after degrading, rubber circle 706 closely contradicts with ring shape fixed plate 604's bottom under the promotion of fourth spring 703, thereby reach sealed effect, water guide cylinder 702 will stretch into the inside of internal fixation net 602, the organic pollutant liquid that mixes the air will be through inside "U" shape structure to water guide cylinder 702 and cushion the choked flow, enter into internal fixation net 602 inside through infiltration hole 701, under the effect of pressure, the organic pollutant liquid that mixes the air will slowly pass internal fixation net 602 through microorganism adhesion layer 601 infiltration degradation, ooze from external fixation net 603, reach reaction chamber 502, discharge pipe 501 again, thereby reach the purpose to organic pollutant liquid purification.

The protection structure 4 comprises a protection cover 402 rotatably arranged at the top end of the purification bed barrel body 1, a limiting block 401 slidably arranged at one end of the protection cover 402, a second spring 403 fixedly arranged between the limiting block 401 and the protection cover 402, and a limiting groove 404 arranged at one end of the purification bed barrel body 1; the limiting block 401 is pushed, the second spring 403 is compressed, the limiting block 401 and the limiting groove 404 are separated, the protecting cover 402 can be screwed out outwards, the protecting cover 402 plays a role in protection, rainwater can be prevented from entering the purifying bed barrel body 1, and microorganisms can be taken out and replaced conveniently.

When the invention is used, the limiting block 401 is pushed, the second spring 403 is compressed, the limiting block 401 and the limiting groove 404 are separated, the protecting cover 402 can be screwed out outwards, the protecting cover 402 plays a role in protecting, the protecting cover 402 can prevent rainwater from entering the purifying bed barrel body 1 and is convenient for taking out and replacing microorganisms, the microorganism attaching layer 601 is fixed between the inner fixing net 602 and the outer fixing net 603, so that the microorganism attaching layer 601 is prevented from being broken, the fixing plate 604 is lifted by lifting equipment, the microorganism attaching layer 601 can be replaced integrally, a new microorganism attaching layer 601 is placed in the reaction cavity 502, the inner fixing net 602 and the outer fixing net 603 are beneficial to permeation of organic pollutant liquid, the water inlet pipe 203 is connected into the organic pollutant liquid, the air inlet pipe 201 is connected into air, the motor 202 is started, the motor 202 drives the turbine 204 to rotate in the fixing shell 206, air and organic pollutant liquid are sprayed onto the turbine 204 in the fixing shell 206 from the spray holes 205, the rotation of the turbine 204 can enable the air and the organic pollutant liquid to be uniformly mixed, so that aerobic respiration of microorganisms is facilitated, oxygen is distributed more uniformly, vortex is formed, the air and the organic pollutant liquid enter the water guide cylinder 702, the reaction cavity 502 is used for placing the microorganism attaching layer 601, the water cavity 503 is used for installing the turbine 204, a certain amount of organic pollutant liquid can be reserved, vortex formation is facilitated, degraded liquid is discharged through the discharge pipe 501, the fixing plate 604 at the bottom end is annular, the annular fixing plate 604 abuts against the rubber pad 704, the rubber pad 704 plays a role of sealing, the degraded liquid in the reaction cavity 502 is prevented from flowing into the water cavity 503, the rubber pad 706 is tightly abutted against the bottom end of the annular fixing plate 604 under the pushing of the fourth spring 703, therefore, the sealing effect is achieved, the water guide cylinder 702 stretches into the inner fixed net 602, the organic pollutant liquid mixed with air is buffered and choked through the U-shaped structure in the water guide cylinder 702, the organic pollutant liquid mixed with air enters into the inner fixed net 602 through the water seepage holes 701, the organic pollutant liquid mixed with air slowly penetrates through the inner fixed net 602 and is subjected to permeation degradation through the microorganism attaching layer 601 under the action of pressure, the organic pollutant liquid seeps out of the outer fixed net 603 and reaches the reaction cavity 502 and then is discharged from the discharge pipe 501, the aim of purifying the organic pollutant liquid is achieved, when an additive is required to be added to improve the activity of microorganisms in the microorganism attaching layer 601, the rotary cover 301 is opened, the additive is poured into the feed pipe 302, the additive enters into the adding chamber 305 along the feed pipe 302, the rotary cover 301 is screwed, the control rod 303 is pushed to push the rubber block 304 to slide, the first spring 308 is compressed, the dislocation holes 307 on the rubber block 304 are communicated with the communication holes 306, the adding chamber and the water inlet pipe 203 are communicated, the rotary cover 301 is closed, the negative pressure is closed, the organic pollutant liquid inside the adding chamber 203 is not contacted with the microorganism attaching layer, and the microorganism attaching layer is not diluted by the microorganism attaching layer, and the activity of the microorganism attaching layer is not changed.

Claims (4)

1. A seepage biological film purifying bed for degrading organic pollutants is characterized in that: the device comprises a purifying bed barrel body (1), a placing structure (5) arranged on the purifying bed barrel body (1) and used for placing, a mixing structure (2) arranged on the purifying bed barrel body (1) and used for mixing organic pollutant liquid and air, a degradation structure (6) arranged on the purifying bed barrel body (1) and used for seepage purification, a conveying structure (7) arranged on the purifying bed barrel body (1) and used for conveying liquid, an adding structure (3) arranged on the purifying bed barrel body (1) and used for adding an additive, and a protection structure (4) arranged on the purifying bed barrel body (1) and used for protection; the placing structure (5) comprises a reaction cavity (502) arranged in the top end of the purifying bed barrel body (1), a water cavity (503) arranged in the bottom end of the purifying bed barrel body (1) and a discharge pipe (501) penetrating through the side wall of the purifying bed barrel body (1), wherein the reaction cavity (502) and the water cavity (503) are communicated through the conveying structure (7), and liquid in the reaction cavity (502) can be discharged through the discharge pipe (501); the mixing structure (2) comprises a fixed shell (206) fixedly arranged at the inner bottom end of the water cavity (503), a motor (202) fixedly arranged at the inner bottom end of the purifying bed barrel body (1), a turbine (204) fixedly arranged at the output end of the motor (202), a water inlet pipe (203) fixedly arranged on the fixed shell (206), an air inlet pipe (201) fixedly arranged on the fixed shell (206), and a plurality of spray holes (205) arranged at one end of the water inlet pipe (203) and one end of the air inlet pipe (201), wherein the turbine (204) is positioned in the fixed shell (206), the turbine (204) is rotationally connected with the fixed shell (206), the water inlet pipe (203) is communicated with the inner part of the air inlet pipe (201) through the spray holes (205) and the fixed shell (206), and the water inlet pipe (203) and the air inlet pipe (201) are respectively fixedly connected with the purifying bed barrel body (1); the degradation structure (6) comprises a pair of fixing plates (604) which are slidably arranged at the upper end and the lower end of the reaction cavity (502), an inner fixing net (602) and an outer fixing net (603) which are fixedly arranged between the pair of fixing plates (604), a microorganism adhesion layer (601) is filled between the inner fixing net (602) and the outer fixing net (603), and the fixing plates (604) at the bottom end of the inner fixing net (602) are in a circular ring shape; the conveying structure (7) comprises a fixed disc (705) fixedly arranged in the purifying bed barrel body (1), a water guide cylinder (702) fixedly arranged at the top end of the fixed disc (705), a rubber ring (706) slidably arranged on the water guide cylinder (702), a fourth spring (703) fixedly arranged at the bottom end of the rubber ring (706), a plurality of water seepage holes (701) arranged on the outer wall of the water guide cylinder (702), a rubber pad (704) fixedly arranged in the purifying bed barrel body (1), wherein the fixed plate (604) at the bottom end is in contact with the rubber pad (704), the fixed plate (604) at the bottom end is in contact with the rubber ring (706), and the water guide cylinder (702) is sleeved with the inner fixed net (602); the water guide cylinder (702) is composed of two layers, and the section of a hollow chamber inside the water guide cylinder (702) is of a U-shaped structure.

2. A seepage biological film purification bed for degrading organic pollutants according to claim 1, wherein: one end of the water inlet pipe (203) is of a C-shaped structure, and one end of the air inlet pipe (201) is of a C-shaped structure.

3. A seepage biological film purification bed for degrading organic pollutants according to claim 1, wherein: the utility model provides an add structure (3) including locating inside interpolation room (305) of purification bed staving (1) lateral wall, fixed inlet pipe (302) of locating purification bed staving (1) lateral wall, locate spiral cover (301) of inlet pipe (302) one end, slide locate inside rubber block (304) of purification bed staving (1) lateral wall, fixed control rod (303) of locating rubber block (304) one end, locate a pair of dislocation hole (307) on rubber block (304), it has first spring (308) to contradict between rubber block (304) and the purification bed staving (1), purification bed staving (1) are located and are equipped with a pair of intercommunicating pore (306) between interpolation room (305) and inlet tube (203), the inside liquid of interpolation room (305) can enter into in inlet tube (203) through intercommunicating pore (306) and dislocation hole (307), threaded connection between spiral cover (301) and inlet pipe (302), control rod (303) and purification bed staving (1) sliding connection.

4. A seepage biological film purification bed for degrading organic pollutants according to claim 1, wherein: the protection structure (4) comprises a protection cover (402) which is arranged at the top end of the purification bed barrel body (1), a limiting block (401) which is arranged at one end of the protection cover (402) in a sliding manner, a second spring (403) which is fixedly arranged between the limiting block (401) and the protection cover (402), and a limiting groove (404) which is arranged at one end of the purification bed barrel body (1), wherein the limiting block (401) is arranged in the limiting groove (404) when the protection cover (402) is locked with the purification bed barrel body (1).

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