CN114751526A - Seepage biomembrane purification bed for organic pollutant degradation - Google Patents

Abstract

The invention discloses a seepage biomembrane purification bed for degrading organic pollutants, which comprises a purification bed barrel body, a placing structure arranged on the purification bed barrel body, a mixing structure arranged on the purification bed barrel body, a degradation structure arranged on the purification bed barrel body, a conveying structure arranged on the purification bed barrel body, an adding structure arranged on the purification bed barrel body and a protection structure arranged on the purification bed barrel body and used for protection, wherein the mixing structure is a mixture of a plurality of organic pollutants; can be with organic pollutant liquid and air misce bene through mixed structure, be convenient for transport structure and degradation structure's installation through placing the structure, transport structure can improve organic pollutant's degradation purifying effect, is convenient for change the microorganism through protective structure, plays the guard action simultaneously, through adding the interpolation of the additive of being convenient for of structure to be convenient for improve the activity of microorganism, thereby improve degradation efficiency.

Description

Seepage biomembrane purification bed for organic pollutant degradation

Technical Field

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

Background

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

At present the microorganism adheres to the layer and is mostly cubic, microorganism adheres to layer bottom and organic matter pollutant carry out the contact infiltration, area of contact is less, influence purification efficiency, the method that adopts stirring formula or direct injection air more makes the oxygen contact in organic matter pollutant and the air mix, the effect is crisscross, easily produce great bubble, great bubble easily makes organic matter pollutant liquid flow inhomogeneous, easily produce great impact to the microorganism adheres to the layer, easily make the microorganism adheres to the layer and disintegrate, it is inconvenient when the additive is added to needs, need follow organic matter pollutant liquid water pump and pump out the department and add.

Disclosure of Invention

The invention provides a seepage biomembrane purification bed for degrading organic pollutants, aiming at overcoming the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an organic pollutant is seepage flow biomembrane purification bed for degradation, including purifying the bed staving, locate the placement structure who is used for placing on purifying the bed staving, locate being used for on purifying the bed staving and carry out the mixed structure that mixes organic pollutant liquid and air, locate the degradation structure who is used for the seepage flow on purifying the bed staving and purify, locate the transport structure who is used for carrying liquid on purifying the bed staving, locate the interpolation structure that is used for adding the additive on purifying the bed staving, locate the protective structure who is used for the protection on purifying the bed staving.

The placing structure comprises a reaction chamber, a reaction chamber arranged inside the top end of the purification bed barrel body, a water chamber arranged inside the bottom end of the purification bed barrel body, and a discharge pipe fixedly arranged on the side wall of the purification bed barrel body and penetrating through the side wall of the purification bed barrel body, wherein the reaction chamber is communicated with the water chamber, and liquid in the reaction chamber can be discharged through the discharge pipe.

Mixed structure including set casing, fixed set casing, the fixed motor of locating the inside bottom of purification bed staving, fixed turbine, the fixed inlet tube of locating the motor output on the set casing, fixed intake pipe of locating on the set casing, a plurality of jet orifices of locating inlet tube and intake pipe one end, the turbine is located the inside of set casing, turbine and set casing rotate to be connected, inside through jet orifice and the inside intercommunication of set casing of inlet tube and inlet tube, intake pipe respectively with purification bed staving fixed connection, inlet tube one end is "C" shape structure, intake pipe one end is "C" shape structure.

Add the structure including add the room, locate purify bed staving lateral wall inside add the room, fixed locate the inlet pipe that purifies bed staving lateral wall, locate the spiral cover of inlet pipe one end, slide and locate the inside block rubber of purifying bed staving lateral wall, fix the control lever of locating block rubber one end, locate a pair of dislocation hole on the block rubber, it has first spring to contradict between block rubber and the purification bed staving, it is equipped with a pair of intercommunicating pore to purify the bed staving to be located to add between room and the inlet tube, it can enter into in the inlet pipe through intercommunicating pore and dislocation hole to add the liquid of indoor portion, the screw thread connects soon between spiral cover and the inlet pipe, control lever and purification bed staving sliding connection.

Degradation structure includes that fixed plate, slip locate purify the inside a pair of fixed plate of bed staving, fixed internal fixation net and the external fixation net of locating between a pair of fixed plate, it has the microorganism adhesion layer to fill between internal fixation net and the external fixation net, the fixed plate of internal fixation net bottom is ring shape.

Conveying structure includes the fixed disk, fixes the fixed disk of locating the purification bed staving inside, fixes the water guide section of thick bamboo of locating the fixed disk top, slides and locates the rubber circle on the water guide section of thick bamboo, fixes the fourth spring of locating the rubber circle bottom, locate a plurality of infiltration holes on the water guide section of thick bamboo outer wall, fix and locate the inside rubber pad of purification bed staving, the bottom fixed plate and rubber pad are contradicted, the bottom fixed plate and rubber circle are contradicted, water guide section of thick bamboo and internal fixation net cup joint, water guide section of thick bamboo comprises two-layer, the inside air chamber of water guide section of thick bamboo surely is "U" shape structure.

Protective structure includes the protective cover, rotates the protective cover of locating purification bed staving top, slides the stopper of locating protective cover one end, fixes locating the second spring between stopper and the protective cover, locate the spacing groove of purifying bed staving one end.

The invention has the following advantages: can be with organic matter pollutant liquid and air misce bene through mixed structure to do benefit to the microorganism and carry out aerobic respiration and decompose, promptly: 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 to the turbine in the fixed shell from the spray hole, the air and the organic pollutant liquid can be uniformly mixed through the rotation of the turbine, so that aerobic respiration of microorganisms is facilitated, the oxygen distribution is more uniform, a vortex is formed, and the air and the organic pollutant liquid enter the water guide cylinder; through the installation of placing structure transport structure and degradation structure of being convenient for, transport structure can evenly carry the organic pollutant liquid and the air after mixing to improve organic pollutant's degradation purifying effect, be convenient for change the microorganism through protective structure, play the guard action simultaneously, promptly: the limiting block is pushed, the second spring is compressed, the limiting block is separated from the limiting groove, the protecting cover can be screwed out outwards, the protecting cover plays a role in protection, the protecting cover can prevent rainwater from entering the interior of the barrel body of the purification bed and is convenient for taking out and replacing microorganisms, the microorganism attachment layer is fixed between the inner fixing net and the outer fixing net so as to prevent the microorganism attachment layer from collapsing, the fixed plate is lifted by lifting equipment and can be integrally replaced, a new microorganism attachment layer is placed in the reaction cavity, the inner fixing net and the outer fixing net are beneficial to the permeation of organic pollutant liquid, the reaction cavity is used for placing the microorganism attachment layer, the water cavity is used for installing a turbine so as to keep certain organic pollutant liquid, the formation of vortex is convenient, the degraded liquid is discharged through a discharge pipe, the fixed plate at the bottom end is in a circular ring shape, and the rubber pad is abutted by the circular ring-shaped fixed plate, the rubber pad plays a role in sealing, liquid after degradation inside the reaction chamber is prevented from flowing into the water chamber, the rubber ring is pushed by the fourth spring to be closely abutted against the bottom end of the circular ring-shaped fixing plate, so that a sealing effect is achieved, the water guide cylinder extends into the inner fixing net, organic pollutant liquid mixed with air can buffer and flow to the water guide cylinder through the U-shaped structure inside, the organic pollutant liquid enters the inner fixing net through the water seepage hole, under the action of pressure, the organic pollutant liquid mixed with air can slowly penetrate through the inner fixing net to be subjected to osmotic degradation through the microorganism adhesion layer, seep out of the outer fixing net, reach the reaction chamber and then be discharged from the discharge pipe, and the purpose of purifying the organic pollutant liquid is achieved; the addition of the additive is facilitated by the addition structure, so that the activity of the microorganism is facilitated to be improved, and the degradation efficiency is improved, namely: when the additive is required to be added to improve the activity of microorganisms in the microorganism adhesion layer, the screw cap is opened, the additive is poured into the feeding pipe, the additive enters the adding chamber along the feeding pipe, the screw cap is screwed, the control rod is pressed, the control rod pushes the rubber block to slide, the first spring is compressed, the dislocation hole in the rubber block is communicated with the communicating hole, so that the adding chamber is communicated with the water inlet pipe, the negative pressure exists in the adding chamber due to the closed state of the screw cap, the organic pollutant liquid in the water inlet pipe is contacted with the additive, the additive is continuously diluted, the organic pollutant liquid reaches the microorganism adhesion layer along, and the activity of the microorganisms is changed.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the connection between the barrel and the inlet tube of the purification bed.

Fig. 3 is an enlarged view of a point a in fig. 2.

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

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

Fig. 6 is a schematic view of a connection structure of the outer fixing net and the fixing plate.

Fig. 7 is a schematic view showing the connection between the tub and the water inlet pipe.

Detailed Description

In order to make the technical solutions of the present invention better understood, 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, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in FIGS. 1 to 7, a filtration biofilm purification bed for organic contaminant degradation comprises a purification bed body 1, a placement structure 5 disposed on the purification bed body 1 for placement, a mixing structure 2 disposed on the purification bed body 1 for mixing organic contaminant liquid and air, a degradation structure 6 disposed on the purification bed body 1 for filtration purification, a delivery structure 7 disposed on the purification bed body 1 for delivering liquid, an addition structure 3 disposed on the purification bed body 1 for adding additives, and a protection structure 4 disposed on the purification bed body 1 for protection.

The placing structure 5 comprises a reaction chamber 502, a reaction chamber 502 arranged inside the top end of the purification bed barrel body 1, a water chamber 503 arranged inside the bottom end of the purification bed barrel body 1, and a discharge pipe 501 fixedly arranged on the side wall of the purification bed barrel body 1 and penetrating through the reaction chamber 502 and the water chamber 503, wherein the liquid inside the reaction chamber 502 can be discharged through the discharge pipe 501; the reaction chamber 502 is used for placing the microorganism adhesion layer 601, and the water chamber 503 is used for installing the turbine 204, so that certain organic pollutant liquid can be retained, vortex formation is facilitated, and degraded liquid is discharged through the discharge pipe 501 conveniently.

The mixing structure 2 comprises a fixed shell 206, a fixed shell 206 fixedly arranged at the bottom end inside the purification bed barrel body 1, a motor 202 fixedly arranged at the bottom end inside the purification 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 injection holes 205 arranged at one ends of the water inlet pipe 203 and the air inlet pipe 201, wherein the turbine 204 is positioned inside the fixed shell 206, the turbine 204 is rotatably connected with the fixed shell 206, the insides of the water inlet pipe 203 and the air inlet pipe 201 are communicated with the inside of the fixed shell 206 through the injection holes 205, the water inlet pipe 203 and the air inlet pipe 201 are respectively and fixedly connected with the purification bed barrel body 1, 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; insert organic pollutant liquid with inlet tube 203, insert the air with intake pipe 201, starter motor 202, motor 202 will drive turbine 204 and rotate in set casing 206 is inside, air and machine pollutant liquid will be spouted to set casing 206 inside turbine 204 from jet orifice 205 on, the rotation of turbine 204 can make air and machine pollutant liquid homogeneous mixing, thereby do benefit to the aerobic respiration of microorganism, make oxygen distribution more even, and form the vortex, thereby make air and machine pollutant liquid enter into water guide cylinder 702.

The adding structure 3 comprises an adding chamber 305, an adding chamber 305 arranged inside the side wall of the purifying bed barrel body 1, a feeding pipe 302 fixedly arranged on the side wall of the purifying bed barrel body 1, a rotary cover 301 arranged at one end of the feeding pipe 302, a rubber block 304 arranged inside the side wall of the purifying bed barrel body 1 in a sliding way, 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 inside the adding chamber 305 can enter the water inlet pipe 203 through the communication holes 306 and the dislocation holes 307, the rotary cover 301 and the feeding pipe 302 are in threaded connection, and the control rod 303 is connected with the purifying bed barrel body 1 in a sliding way; when additives need to be added to improve the activity of microorganisms in the microorganism adhesion layer 601, the screw cap 301 is opened, the additives are poured into the feeding pipe 302, the additives enter the adding chamber 305 along the feeding 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 in the rubber block 304 is communicated with the communication hole 306, so that the adding chamber 305 is communicated with the water inlet pipe 203, due to the closed state of the screw cap 301, negative pressure exists in the adding chamber 305, organic pollutant liquid in the water inlet pipe 203 is contacted with the additives, the additives are continuously diluted, and then the organic pollutant liquid reaches the microorganism adhesion layer 601 along with the organic pollutant liquid, so that the activity of the microorganisms is changed.

The degradation structure 6 comprises a fixing plate 604, a pair of fixing plates 604 arranged inside the purification bed barrel body 1 in a sliding manner, an inner fixing net 602 and an outer fixing net 603 which are fixedly arranged between the pair of fixing plates 604, wherein a microorganism adhesion layer 601 is filled between the inner fixing net 602 and the outer fixing net 603, and the fixing plate 604 at the bottom end of the inner fixing net 602 is annular; microorganism attached layer 601 is fixed in between interior fixed network 602 and the outer fixed network 603 to avoid microorganism attached layer 601 to collapse, hoist fixed plate 604 through hoisting equipment, can wholly change microorganism attached layer 601, put into reaction chamber 502 with new microorganism attached layer 601 inside, interior fixed network 602 and outer fixed network 603 do benefit to the infiltration of organic pollutant liquid.

The conveying structure 7 comprises a fixed disc 705, a fixed disc 705 fixedly arranged in the purification bed barrel body 1, a water guide barrel 702 fixedly arranged at the top end of the fixed disc 705, a rubber ring 706 slidably arranged on the water guide barrel 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 barrel 702, and a rubber pad 704 fixedly arranged in the purification bed barrel body 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 barrel 702 is sleeved with an inner fixed net 602, the water guide barrel 702 is composed of two layers, and the cut of a hollow chamber in the water guide barrel 702 is of a U-shaped structure; the fixing plate 604 at the bottom end is in a ring shape, the ring-shaped fixing plate 604 will abut against the rubber pad 704, the rubber pad 704 plays a role of sealing, the liquid degraded in the reaction chamber 502 is prevented from flowing into the water chamber 503, the rubber ring 706 tightly abuts against the bottom end of the ring-shaped fixing plate 604 under the pushing of the fourth spring 703, thereby achieving the sealing effect, the water guide cylinder 702 extends into the inner fixed net 602, the organic pollutant liquid mixed with air enters the water guide cylinder 702 through the inner U-shaped structure to buffer and block the flow, after entering the inner fixing net 602 through the water seepage holes 701, under the action of pressure, the organic pollutant liquid mixed with air slowly passes through the inner fixing net 602 and is degraded by the penetration of the microorganism attachment layer 601, seeps out of the outer fixed net 603, reaches the reaction cavity 502, and is discharged from the discharge pipe 501, thereby achieving the purpose of purifying the organic pollutant liquid.

The protective structure 4 comprises a protective cover 402, a protective cover 402 rotatably arranged at the top end of the purification bed barrel body 1, a limiting block 401 arranged at one end of the protective cover 402 in a sliding manner, a second spring 403 fixedly arranged between the limiting block 401 and the protective cover 402, and a limiting groove 404 arranged at one end of the purification bed barrel body 1; promote stopper 401, the compression of second spring 403, stopper 401 and spacing groove 404 break away from, alright outwards swing out protective cover 402, and protective cover 402 plays the guard action, and protective cover 402 can avoid the rainwater to enter into purifying inside the bed staving 1, is convenient for take out the change to the microorganism.

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, the protecting cover 402 plays a role in protecting, the protecting cover 402 can prevent rainwater from entering the purifying bed barrel body 1, microorganisms can be conveniently taken out and replaced, the microorganism attachment layer 601 is fixed between the inner fixing net 602 and the outer fixing net 603, so that the microorganism attachment layer 601 is prevented from collapsing, the fixing plate 604 is lifted by a lifting device, the microorganism attachment layer 601 can be integrally replaced, a new microorganism attachment layer 601 is arranged in the reaction cavity 502, the inner fixing net 602 and the outer fixing net 603 are beneficial to the permeation of organic pollutant liquid, the water inlet pipe 203 is connected with the 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 fixing shell 206, the air and the organic pollutant liquid are sprayed onto the turbine 204 in the fixing shell 206 from the air spraying hole 205, the rotation of the turbine 204 can make air and organic pollutant liquid uniformly mixed, thereby being beneficial to aerobic respiration of microorganisms, making oxygen distribution more uniform, and forming vortex, thereby making air and organic pollutant liquid enter the water guide cylinder 702, the reaction chamber 502 is used for placing the microorganism adhesion layer 601, the water chamber 503 is used for installation of the turbine 204, thereby making it capable of retaining certain organic pollutant liquid, being convenient for formation of vortex, being convenient for discharge of degraded liquid through the discharge pipe 501, the fixing plate 604 at the bottom end is in a circular ring shape, the circular ring-shaped fixing plate 604 is butted with the rubber pad 704, the rubber pad 704 plays a role of sealing, preventing the degraded liquid inside the reaction chamber 502 from flowing into the inside of the water chamber 503, the rubber ring 706 is closely butted with the bottom end of the circular ring-shaped fixing plate 604 under the push of the fourth spring 703, thereby achieving a sealing effect, the water guide cylinder 702 is stretched into the inside of the inner fixing net 602, organic pollutant liquid mixed with air enters the inner fixing net 602 through the U-shaped structure inside to the water guide cylinder 702 for buffering and flow blocking, the organic pollutant liquid mixed with air slowly passes through the inner fixing net 602 to be subjected to osmotic degradation through the microorganism adhesion layer 601 under the action of pressure, seeps out from the outer fixing net 603 to reach the reaction chamber 502 and then is discharged from the discharge pipe 501, so that the purpose of purifying the organic pollutant liquid is achieved, when an additive needs to be added to improve the activity of microorganisms inside the microorganism adhesion 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, therefore, the adding chamber 305 is communicated with the water inlet pipe 203, negative pressure exists in the adding chamber 305 due to the closed state of the screw cover 301, organic pollutant liquid in the water inlet pipe 203 is in contact with the additive, the additive is continuously diluted, and the organic pollutant liquid reaches the microorganism adhesion layer 601 along the organic pollutant liquid, so that the activity of microorganisms is changed.

Claims (9)

1. A seepage biomembrane purification bed for degrading organic pollutants is characterized in that: including purifying bed staving (1), locate placing structure (5) that is used for placing on purifying bed staving (1), locate the mixed structure (2) that is used for mixing organic pollutant liquid and air on purifying bed staving (1), locate degradation structure (6) that are used for the seepage flow to purify on purifying bed staving (1), locate the transport structure (7) that are used for carrying liquid on purifying bed staving (1), locate adding structure (3) that are used for adding the additive on purifying bed staving (1), locate the protective structure (4) that are used for the protection on purifying bed staving (1).

2. The percolating biofilm purification bed for degrading organic pollutants as claimed in claim 1, wherein: place structure (5) including reaction chamber (502), locate purification bed staving (1) top inside reaction chamber (502), locate purification bed staving (1) bottom inside water cavity (503), fixed locate purification bed staving (1) lateral wall and run through discharge pipe (501), reaction chamber (502) and water cavity (503) intercommunication, the inside liquid accessible discharge pipe (501) of reaction chamber (502) are discharged.

3. A percolating biofilm purification bed for the degradation of organic pollutants as in claim 1, wherein: mixing structure (2) including set casing (206), fixed set casing (206) of locating the inside bottom of purification bed staving (1), fixed motor (202) of locating the inside bottom of purification bed staving (1), fixed turbine (204) of locating motor (202) output, fixed inlet tube (203) of locating on set casing (206), fixed intake pipe (201) of locating on set casing (206), locate a plurality of jet orifices (205) of inlet tube (203) and intake pipe (201) one end, turbine (204) are located the inside of set casing (206), turbine (204) and set casing (206) rotate and are connected, inlet tube (203) and intake pipe (201) are inside to be through jet orifices (205) and set casing (206) inside intercommunication, inlet tube (203), intake pipe (201) respectively with purification bed staving (1) fixed connection.

4. A percolating biofilm purification bed for the degradation of organic pollutants as in claim 3, 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.

5. The percolating biofilm purification bed for degrading organic pollutants as claimed in claim 3, wherein: the adding structure (3) comprises an adding chamber (305), an adding chamber (305) arranged inside the side wall of the purifying bed barrel body (1), a feeding pipe (302) fixedly arranged on 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 inside 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 butted between the rubber block (304) and the purifying bed barrel body (1), a pair of communicating holes (306) are arranged between the adding chamber (305) and the water inlet pipe (203) of the purifying bed barrel body (1), liquid inside the adding chamber (305) can enter the water inlet pipe (203) through the communicating holes (306) and the dislocation holes (307), and the spiral cover (301) is in threaded connection with the feeding pipe (302), the control rod (303) is connected with the purification bed barrel body (1) in a sliding way.

6. A percolating biofilm purification bed for the degradation of organic pollutants as in claim 1, wherein: degradation structure (6) locate purifying bed staving (1) inside a pair of fixed plate (604), fixed internal fixation net (602) and the outer fixed net (603) of locating between a pair of fixed plate (604) including fixed plate (604), slip, it has microorganism adhesion layer (601) to fill between internal fixation net (602) and outer fixed net (603), fixed plate (604) of internal fixation net (602) bottom are the ring shape.

7. The percolating biofilm purification bed for degrading organic pollutants as claimed in claim 6, wherein: conveying structure (7) include fixed disk (705), fixed disk (705) of locating purification bed staving (1) inside, fixed water guide tube (702) of locating fixed disk (705) top, slide and locate rubber ring (706) on water guide tube (702), fixed fourth spring (703) of locating rubber ring (706) bottom, locate a plurality of infiltration holes (701) on water guide tube (702) outer wall, fixed rubber pad (704) of locating purification bed staving (1) inside, the bottom fixed plate (604) and rubber pad (704) are contradicted, the bottom fixed plate (604) and rubber ring (706) are contradicted, water guide tube (702) and internal fixation net (602) cup joint.

8. A percolating biofilm purification bed for the degradation of organic pollutants as in claim 7, wherein: the water guide cylinder (702) is composed of two layers, and the section of a hollow chamber inside the water guide cylinder (702) is in a U-shaped structure.

9. The percolating biofilm purification bed for degrading organic pollutants as claimed in claim 1, wherein: protective structure (4) include protective cover (402), rotate and locate protective cover (402) on purification bed staving (1) top, slide and locate stopper (401) of protective cover (402) one end, fixed second spring (403) of locating between stopper (401) and protective cover (402), locate spacing groove (404) of purifying bed staving (1) one end.

Images