Sewage purifier of composite biological membrane

Abstract

The invention relates to the technical field of environmental protection, in particular to a composite biological membrane sewage purifier which comprises an integrated treatment machine, a collection box, a medicine storage tank and the like. Five chambers are arranged in the integrated treatment machine and sequentially comprise an anaerobic chamber, an aerobic chamber, a precipitation chamber, a disinfection chamber and an equipment chamber, and every two adjacent chambers are communicated with each other; a water inlet is formed in the left side of the integrated treatment machine and is communicated with the anaerobic bin. The armorplate glass is arranged on the upper side of the aerobic bin, so that sunlight can conveniently irradiate the interior of the aerobic bin, algae in a biological membrane can conveniently generate oxygen through photosynthesis, the content of dissolved oxygen in sewage is increased, the content of dissolved oxygen in the sewage meets the oxygen amount required by the composite biological membrane, and the sewage treatment efficiency is improved. Furthermore, the activity of microorganisms such as aerobic bacteria and fungi is ensured, the efficiency of decomposing organic matters is improved, and during photosynthesis of the algae, inorganic salts such as nitrogen and phosphorus in the sewage need to be absorbed, so that the purification efficiency of the sewage is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection, and in particular to a sewage purifier with a composite biofilm. Background Art

[0002] Integrated sewage treatment equipment is widely used in the treatment of domestic sewage and wastewater due to its compact design, convenient installation and simple maintenance. In addition, integrated sewage purification equipment is usually installed outdoors. Existing integrated sewage treatment equipment usually uses composite biofilm technology to clean sewage, that is, fillers are placed in the treatment pool as microbial carriers, so that aerobic bacteria, fungi, algae and other microorganisms attach to the fillers and grow to form composite biofilms. Subsequently, the organic matter in the sewage is decomposed by the composite biofilm, thereby achieving sewage purification. In this process, the sewage needs to be continuously aerated to increase the dissolved oxygen content in the sewage to ensure the activity of the biofilm. However, the dissolved oxygen content increased by aeration is limited. When there are more organic matter in the sewage, the composite biofilm needs to consume a lot of oxygen in the decomposition process of the organic matter. At this time, the dissolved oxygen content increased by aeration is not enough to support the content required by the composite biofilm, resulting in insufficient dissolved oxygen in the sewage, thereby reducing the activity of the composite biofilm and causing the efficiency of the biofilm in decomposing organic matter to decrease. In addition, the existing integrated sewage purification equipment usually adopts a sealed structure, and there is usually no sunlight inside the treatment pool. Since the growth of algae microorganisms usually requires sunlight for photosynthesis, the growth of algae microorganisms in the treatment pool is limited, reducing the efficiency of sewage purification. Summary of the invention

[0003] In order to overcome the shortcomings of existing integrated sewage treatment equipment that uses biofilm technology to treat sewage, if the organic matter load in the sewage is high, it will lead to insufficient dissolved oxygen in the sewage and affect the activity of the biofilm; in addition, since the treatment pool is usually in a sealed and lightless environment, the growth of algae is restricted, affecting the purification efficiency, the present invention provides a composite biofilm sewage purifier.

[0004] Technical solution: A composite biofilm sewage purifier includes an integrated treatment machine, a collection box and a medicine storage tank; the integrated treatment machine is provided with five chambers, which are anaerobic chamber, aerobic chamber, sedimentation chamber, disinfection chamber and equipment chamber in order, and two adjacent chambers are interconnected; a water inlet is provided on the left side of the integrated treatment machine, and the water inlet is connected to the anaerobic chamber; a drain outlet is provided on the front side of the disinfection chamber; an inspection port is provided on the upper side of each chamber; a water quality monitor is installed in the aerobic chamber; a collection box is installed in the sedimentation chamber; A sewage outlet is provided; a medicine storage tank is installed in the equipment warehouse; disinfectant is stored in the medicine storage tank; the medicine storage tank is connected to the disinfection warehouse through a pipeline; it also includes a tempered glass plate, a fixed plate, a limit tube, a filler and an aeration system; a tempered glass plate is arranged on the upper side of the aerobic warehouse; a number of fixed plates are installed in the aerobic warehouse; a number of limit tubes are fixedly connected to each fixed plate; a number of fillers are sleeved on each limit tube; four spacers are arranged in each filler; an aeration system for increasing the dissolved oxygen content in the sewage is installed on the integrated treatment machine.

[0005] Furthermore, the aeration system includes a connecting pipe, an electrically controlled three-way valve, an air transmission pipe and an air supply pipe; a connecting pipe is fixedly connected to the integrated processing machine; the connecting pipe is connected to a plurality of branch pipes; all the branch pipes are located in the aerobic chamber; the connecting pipe is connected to the electrically controlled three-way valve; the electrically controlled three-way valve is connected to the air transmission pipe; the air transmission pipe is connected to an external air supply device; all the fillers on the same limiting pipe are fixedly connected to a plurality of air supply pipes, and the portion of the air supply pipe located between two adjacent fillers is a compression portion; the compression portion is configured as a bellows structure; an exhaust hole is opened on each air supply pipe, and a micro one-way valve is arranged in each exhaust hole; all the air supply pipes are connected to adjacent branch pipes.

[0006] Furthermore, it also includes a fixing seat and an LED lamp tube; the limiting tube is configured to adopt light-transmitting glass; a fixing seat is fixedly connected to each fixing plate; a plurality of LED lamp tubes are installed on each fixing seat; each LED lamp tube is located in an adjacent limiting tube; and all LED lamp tubes are connected to an external power supply device.

[0007] Furthermore, the exhaust holes are arranged in a ring shape along the circumference of the air supply pipe.

[0008] Furthermore, it also includes a circulation system; the circulation system includes a first water pipe, a second water pipe and a water pump; the water pump is fixedly connected to the integrated treatment machine; the water inlet of the water pump is connected to the first water pipe; the first water pipe is connected to the upper part of the aerobic bin; a water storage cavity is provided at the bottom of the aerobic bin; a drainage port is also provided on the front side of the water storage cavity; a plurality of bases are provided at the bottom of the aerobic bin; each base is located at the lower side of the adjacent filler; the interior of the base is provided as a hollow structure, and the interiors of all the bases are connected to the water storage cavity; the water outlet of the water pump is connected to the second water pipe; the second water pipe is connected to the water storage cavity.

[0009] Furthermore, each filler is provided with two scraper rings which are symmetrical up and down.

[0010] Furthermore, a plurality of protrusions are arranged on the outer wall, the inner wall and the spacer of each filler.

[0011] Furthermore, it also includes a filter screen; the collection box is fixedly connected with a filter screen for intercepting suspended matter such as algae in the sewage.

[0012] Furthermore, it also includes a water supply pipe; the electric-controlled three-way valve is connected with the water supply pipe; the water supply pipe is connected with an external water supply device; and a drainage port is also provided at the front side of the aerobic bin.

[0013] Furthermore, it also includes arc plates; a plurality of arc plates are fixedly connected to the scraper ring of each filler.

[0014] The beneficial effects are: By arranging the tempered glass plate on the upper side of the aerobic chamber, it is convenient for sunlight to irradiate the aerobic chamber, so that the algae in the biofilm can produce oxygen through photosynthesis, thereby increasing the dissolved oxygen content in the sewage, so that the dissolved oxygen content in the sewage meets the oxygen required by the composite biofilm, thereby ensuring the activity of microorganisms such as aerobic bacteria and fungi, and improving the efficiency of decomposing organic matter. In addition, when performing photosynthesis, the algae need to absorb inorganic salts such as nitrogen and phosphorus in the sewage, further improving the purification efficiency of the sewage; The algae are supplemented with light through LED tubes to ensure that the algae can always carry out photosynthesis, thereby ensuring the dissolved oxygen content in the sewage and thus ensuring the efficiency of the biofilm in decomposing organic matter; Through the circulation of sewage, the algae on the water surface are mixed into the sewage in the aerobic chamber, avoiding excessive accumulation on the water surface that limits the sunlight received by the algae in the water, ensuring that the algae in the sewage pool can carry out photosynthesis normally, and making the distribution of algae in the sewage relatively uniform, so that the dissolved oxygen content of the upper and lower sewage in the aerobic chamber is relatively uniform; By arranging bumps on the outer wall, inner wall and spacer of the filler, the contact area between the biofilm and the filler is increased through the bumps, thereby improving the stability of the biofilm attached to the filler and preventing the biofilm from being washed away during the flow of sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the composite biofilm sewage purifier of the present invention; Figure 2 This is a schematic diagram of the internal structure of the integrated processor of the present invention from a first viewing angle; Figure 3 A schematic diagram of the internal structure of the integrated processor of the present invention from a second viewing angle; Figure 4It is a schematic diagram of the three-dimensional structure of the fixing plate, the limiting tube and the filler combination of the present invention; Figure 5 For the present invention Figure 4 A in the enlarged view; Figure 6 It is a schematic diagram of the three-dimensional structure of the aeration system of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the packing, connecting pipe and air supply pipe combination of the present invention; Figure 8 This is a front view of the combination of the limit tube, filler and air supply tube of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the circulation system of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the packing and the arc plate combination of the present invention.

[0016] In the accompanying drawings: 1-integrated treatment machine, 1001-anaerobic chamber, 1002-aerobic chamber, 1003-sedimentation chamber, 1004-disinfection chamber, 1005-equipment chamber, 1006-water inlet, 1007-first drain outlet, 1008-third drain outlet, 1009-water storage chamber, 1010-base, 1011-first delivery pipe, 1012-second delivery pipe, 1013-second drain outlet, 1014-connecting port, 2-collection box, 2001-drain outlet, 3-drug storage tank, 4-tempered glass Glass plate, 5-fixed plate, 6-limiting tube, 7-filler, 7001-spacer, 7002-scraper ring, 7003-bump, 201-fixed seat, 202-LED lamp tube, 203-connecting pipe, 20301-branch pipe, 204-electrically controlled three-way valve, 205-air pipe, 206-air supply pipe, 20601-compression part, 20602-exhaust hole, 207-first water pipe, 208-second water pipe, 209-water pump, 210-filter, 301-water supply pipe, 302-arc plate. DETAILED DESCRIPTION

[0017] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Example 1 like Figure 1-Figure 10As shown, a composite biofilm sewage purifier includes an integrated treatment machine 1, a collection box 2 and a medicine storage tank 3; five chambers are arranged in the integrated treatment machine 1, and the five chambers are anaerobic chamber 1001, aerobic chamber 1002, sedimentation chamber 1003, disinfection chamber 1004 and equipment chamber 1005, and two adjacent chambers are interconnected; a water inlet 1006 is arranged on the left side of the integrated treatment machine 1, and the water inlet 1006 is connected to the anaerobic chamber 1001; a first drain port 1007 is opened on the front side of the integrated treatment machine 1, and the first drain port 1007 is connected to the disinfection chamber 1004; an inspection port is opened on the upper side of each chamber; the aerobic chamber 1002 A water quality monitor is installed in the sedimentation bin 1003; a collecting box 2 is installed in the sedimentation bin 1003; a sewage outlet 2001 is provided on the collecting box 2; a medicine storage tank 3 is installed in the equipment bin 1005; a disinfectant is stored in the medicine storage tank 3; the medicine storage tank 3 is connected to the disinfection bin 1004 through a pipeline; the anaerobic bin 1001 is connected to the aerobic bin 1002 through a first delivery pipe 1011, a pump is provided in the first delivery pipe 1011, the aerobic bin 1002 is connected to the sedimentation bin 1003 through a second delivery pipe 1012, a pump is also provided in the second delivery pipe 1012; the sedimentation bin 1003 is connected to the disinfection bin 1004 through a connecting port 1014; It also includes a tempered glass plate 4, a fixed plate 5, a limiting tube 6, a filler 7 and an aeration system; a tempered glass plate 4 is arranged on the upper side of the aerobic bin 1002; seven fixed plates 5 are installed in the aerobic bin 1002; twelve limiting tubes 6 are fixedly connected to each fixed plate 5; a number of fillers 7 are sleeved on each limiting tube 6; four spacers 7001 are arranged in each filler 7; an aeration system is installed on the integrated treatment machine 1.

[0019] The aeration system includes a connecting pipe 203, an electric-controlled three-way valve 204, an air pipe 205 and an air supply pipe 206; the connecting pipe 203 is fixedly connected to the front side of the integrated treatment machine 1; the connecting pipe 203 is connected to seven branch pipes 20301; all the branch pipes 20301 are located in the aerobic bin 1002; the connecting pipe 203 is connected to the electric-controlled three-way valve 204; the electric-controlled three-way valve 204 is connected to the air pipe 205; the air pipe 205 is connected to the external air supply device; All the fillers 7 on the same limiting tube 6 are commonly fixedly connected to four air supply pipes 206 distributed in a ring array, and the part of the air supply pipe 206 located between two adjacent fillers 7 is the compression part 20601; the compression part 20601 is configured as a bellows structure; each air supply pipe 206 is provided with an exhaust hole 20602, and each exhaust hole 20602 is provided with a micro one-way valve; all the air supply pipes 206 are connected to the adjacent branch pipes 20301.

[0020] It also includes a fixing seat 201 and an LED lamp tube 202; the limiting tube 6 is configured to adopt light-transmitting glass; each fixing plate 5 is fixedly connected with a fixing seat 201; each fixing seat 201 is installed with twelve LED lamp tubes 202; each LED lamp tube 202 is located in an adjacent limiting tube 6; all LED lamp tubes 202 are connected to an external power supply device.

[0021] Furthermore, in order to evenly distribute the suspended matter in the aerobic chamber 1002 and improve the sewage treatment efficiency, the exhaust holes 20602 are arranged in a circumferential ring along the air supply pipe 206.

[0022] It also includes a circulation system; the circulation system includes a first water pipe 207, a second water pipe 208 and a water pump 209; the water pump 209 is fixedly connected to the front side of the integrated treatment machine 1; the water inlet end of the water pump 209 is connected to the first water pipe 207; the first water pipe 207 is connected to the upper part of the aerobic bin 1002; a water storage chamber 1009 is arranged at the bottom of the aerobic bin 1002; a second drain port 1013 is opened at the front side of the water storage chamber 1009; the second drain port 1013 is connected to the external sludge treatment system; a plurality of bases 1010 are arranged at the bottom of the aerobic bin 1002; each base 1010 is located at the lower side of the adjacent filler 7; the interior of the base 1010 is arranged as a hollow structure, and the interiors of all the bases 1010 are connected to the water storage chamber 1009; the water outlet of the water pump 209 is connected to the second water pipe 208; the second water pipe 208 is connected to the water storage chamber 1009.

[0023] Furthermore, in order to improve the light transmittance of the limiting tube 6 and ensure the normal growth of algae, two scraping rings 7002 which are symmetrical up and down are arranged on each filler 7.

[0024] Furthermore, in order to improve the stability of the biofilm attached to the filler 7 , a plurality of protrusions 7003 are provided on the outer wall, the inner wall and the spacer 7001 of each filler 7 .

[0025] It also includes a filter screen 210 ; the filter screen 210 is fixedly connected to the collection box 2 ; and the water outlet of the second delivery pipe 1012 is located below the filter screen 210 .

[0026] The following integrated sewage treatment equipment describes in detail the process of domestic sewage purification: Before treating sewage, filter material is firstly put into the anaerobic chamber 1001, and anaerobic bacteria are inoculated on the filter material. Meanwhile, microorganisms such as aerobic bacteria, fungi and algae are inoculated on the filler 7 in the aerobic chamber 1002. Nutrients required for the growth of various fungi are provided to the anaerobic chamber 1001 and the aerobic chamber 1002 respectively, so that anaerobic bacteria grow on the filter material to form a biofilm, and microorganisms such as aerobic bacteria, fungi and algae grow on the filler 7 to form a composite biofilm. Then, the sewage is transmitted to the water inlet 1006 through a pipeline, and then the sewage enters the anaerobic chamber 1001. 001, the sewage is brought into contact with the filter material, and the anaerobic bacteria on the filter material form a biofilm to decompose the macromolecular organic matter such as protein and grease in the sewage, so that they are decomposed into smaller molecules. After the sewage is treated in the anaerobic chamber 1001, the sewage in the anaerobic chamber 1001 is transported to the aerobic chamber 1002 through the pump in the first delivery pipe 1011, so that the sewage gradually covers all the fillers 7, thereby decomposing the small molecular organic matter in the sewage through the composite biofilm formed by microorganisms such as aerobic bacteria, fungi and algae on the fillers 7. The sewage is purified, and in the process of the biofilm purifying the sewage, the microbial metabolites and the aged microorganisms separated from the filler 7 will be suspended in the sewage to form suspended solids. Then the water quality of the sewage is monitored by the water quality monitor in the aerobic bin 1002. When the water quality meets the discharge requirements, the sewage in the aerobic bin 1002 together with the suspended solids and sludge are transported to the sedimentation bin 1003 through the pump in the second delivery pipe 1012, and then the sewage is allowed to stand in the sedimentation bin 1003, so that the suspended solids and microorganisms in the sewage are separated. The substances are precipitated into the collection box 2 to form sludge, and then the connecting port 1014 is opened, and the supernatant in the sedimentation tank 1003 flows into the disinfection tank 1004 through the connecting port 1014, and then the disinfectant is transported to the disinfection tank 1004 through the medicine storage tank 3 in the equipment tank 1005, and the water in the disinfection tank 1004 is disinfected to ensure that the water quality meets the discharge standard, and then the water in the disinfection tank 1004 is discharged through the first drain port 1007. At the same time, the sludge in the collection box 2 is transported to the sludge treatment system through the sewage outlet 2001 for subsequent treatment.

[0027] In the process of sewage treatment by the composite biofilm on the filler 7, the connecting pipe 203 is connected with the gas pipe 205 by controlling the electric three-way valve 204, and then oxygen is transported to the gas pipe 205 through the external gas supply device, so that oxygen enters the connecting pipe 203, and then the oxygen enters the gas supply pipe 206 through the branch pipe 20301, so that the air pressure in the gas supply pipe 206 is increased, and the oxygen is discharged into the sewage through the exhaust hole 20602, so as to realize the aeration treatment of the sewage, so as to increase the content of dissolved oxygen in the sewage and ensure the efficiency of the biofilm in decomposing organic matter in the sewage. In the process of sewage treatment, when the organic matter content in the sewage is high, the oxygen required for decomposing the organic matter increases, and the aeration produces The dissolved oxygen content is not enough to support the amount of oxygen required by the composite biofilm to decompose organic matter, resulting in insufficient dissolved oxygen in the sewage, thereby reducing the efficiency of the biofilm in decomposing organic matter. For this reason, the tempered glass plate 4 is arranged on the upper side of the aerobic chamber 1002 to facilitate sunlight irradiation into the aerobic chamber 1002, so that the algae in the biofilm can produce oxygen through photosynthesis, thereby increasing the dissolved oxygen content in the sewage, so that the dissolved oxygen content in the sewage meets the amount of oxygen required by the composite biofilm, thereby ensuring the activity of microorganisms such as aerobic bacteria and fungi, and improving the efficiency of decomposing organic matter. In addition, when performing photosynthesis, the algae need to absorb inorganic salts such as nitrogen and phosphorus in the sewage, further improving the efficiency of sewage purification.

[0028] Since sewage contains more impurities and has a higher turbidity, the depth of external sunlight penetrating into the sewage is limited, which limits the growth range of algae. In addition, affected by the lighting conditions, algae cannot carry out photosynthesis at night, thereby reducing the effect of biofilm in treating sewage at night. To this end, the limit tube 6 is set to adopt light-transmitting glass, and the LED lamp tube 202 on the fixing seat 201 is powered by an external power supply device to make the LED lamp tube 202 emit light. The light is transmitted through the limit tube 6 to the inner wall of the filler 7 and the partition 7001, so that the algae can grow concentratedly on the inner wall of the filler 7 and the partition 7001. In addition, the LED lamp tube 202 is used to supplement the algae to ensure that the algae can always carry out photosynthesis, thereby ensuring the dissolved oxygen content in the sewage, thereby ensuring the efficiency of the biofilm in decomposing organic matter.

[0029] In the process of aerating sewage, conventional sewage treatment devices usually only increase the dissolved oxygen content in the water, and usually set the aeration port at the bottom of the treatment tank. When aeration is performed in this way, when the suspended matter in the sewage is stuck on the lower side of the filler 7, the bubbles generated by the aeration will be blocked by the filler 7 when moving upward, and the bubbles cannot take away the suspended matter stuck on the lower side of the filler 7, so that the heavier suspended matter is deposited in the lower layer of the aerobic bin 1002. For this reason, the exhaust holes 20602 are arranged in a circumferential annular arrangement along the air supply pipe 206, so that oxygen can be discharged in the form of bubbles. The bubbles diffuse around the air supply pipe 206 respectively, and then enter the gap between the two opposing limiting pipes 6, and then float upward. In this process, the sewage close to the air supply pipe 206 is driven to diffuse around by the flow of bubbles, so that the suspended matter in the sewage diffuses in the gap between the two adjacent limiting pipes 6, and then the suspended matter moves upward with the bubbles, thereby avoiding the heavier suspended matter in the sewage from sinking to the bottom of the aerobic bin 1002, so that the suspended matter is evenly distributed in the aerobic bin 1002, which is convenient for the biofilm to decompose the suspended matter and improve the sewage treatment efficiency.

[0030] When the inorganic salt content such as nitrogen and phosphorus in sewage is high, since the algae have sufficient sunlight and nutrients, the algae will grow rapidly and then algae bloom will occur, that is, a large number of algae will float on the surface of the sewage, blocking the external sunlight. At the same time, a large number of algae will gather on the water surface, which will affect the photosynthesis of the algae in the lower layer of the aerobic bin 1002, so that the dissolved oxygen content in the upper layer of the aerobic bin 1002 is greater than the dissolved oxygen content in the lower layer of the aerobic bin 1002, resulting in uneven distribution of dissolved oxygen content in the water. For this reason, the water pump 209 is controlled to work, so that the sewage in the upper layer of the aerobic bin 1002 flows to the first water pipe 207 and the water pump 209. The sewage is then passed through the second water pipe 208 into the water storage chamber 1009, and then discharged from the base 1010, and then discharged from the middle of the filler 7 at the bottom of the aerobic bin 1002, and enters the bottom of the aerobic bin 1002, thereby driving the algae on the water surface to enter the bottom of the aerobic bin 1002, so that the algae on the water surface are mixed into the sewage in the entire aerobic bin 1002, avoiding excessive accumulation on the water surface resulting in limited sunlight for the algae in the water, ensuring that the algae in the sewage pool can photosynthesize normally, and through the circulation of sewage, the distribution of algae in the sewage is relatively uniform, so that the dissolved oxygen content of the upper sewage and the lower sewage in the aerobic bin 1002 is relatively uniform.

[0031] On this basis, when the organic matter content in the sewage decreases, the oxygen required for the biofilm to decompose the organic matter decreases, and the oxygen produced by algae can meet the oxygen required by the biofilm. At this time, stop aerating the sewage to reduce the power consumption required for purifying the sewage. In addition, the pollutants in the sewage include inorganic salts such as nitrogen and phosphorus in addition to organic matter. However, aerobic bacteria and fungi in the aerobic chamber 1002 usually find it difficult to process inorganic salts such as nitrogen and phosphorus. Only algae can absorb inorganic salts such as nitrogen and phosphorus during photosynthesis. For this reason, when the air supply pipe 2 When the air supply pipe 206 is in the aeration state, the compression part 20601 is in the expansion state in the up and down direction. At this time, there is a distance between two adjacent fillers 7, which is convenient for sewage to enter the filler 7 and improve the efficiency of biofilm decomposition of organic matter. When the air supply pipe 206 stops aeration, the air supply device is controlled to pump air to the air delivery pipe 205 so that the air in the air supply pipe 206 flows to the branch pipe 20301 and converges into the connecting pipe 203, and then flows out from the air delivery pipe 205 through the electric three-way valve 204. Due to the exhaust hole 20602 A micro one-way valve is arranged inside, and sewage outside the air supply pipe 206 cannot enter the air supply pipe 206 through the exhaust hole 20602, thereby reducing the pressure inside the air supply pipe 206, so that the compression part 20601 is compressed under the action of the pressure difference between the inside and outside of the air supply pipe 206, and then the filler 7 slides downward relative to the limiting tube 6 connected thereto, and the distance between two adjacent fillers 7 on the same limiting tube 6 is reduced until the two adjacent fillers 7 fit each other. At this time, the inner walls of all fillers 7 on the same limiting tube 6, the spacer 7001 and the spacer tubes 6 together form a drainage channel, and the water in the water storage chamber 1009 enters the drainage channel through the base 1010, and then flows upward along the drainage channel until it is discharged to the upper sewage. In this process, when the sewage passes through the drainage channel, the sewage fully contacts with the inner wall of the filler 7 and the algae on the spacer 7001, thereby improving the treatment efficiency of the biofilm on inorganic salts such as nitrogen and phosphorus in the sewage, effectively reducing the content of inorganic salts such as nitrogen and phosphorus in the sewage, and improving the treatment quality of the sewage.

[0032] Furthermore, when the filler 7 slides downward relative to the limiting tube 6 sleeved therewith, the scraper ring 7002 is simultaneously driven to move downward, so that the scraper ring 7002 scrapes the outer wall of the limiting tube 6, thereby scraping off the impurities in the sewage attached to the outer wall of the limiting tube 6 and the algae attached and growing, thereby cleaning the outer wall of the limiting tube 6, improving the light transmittance of the limiting tube 6, and then ensuring the normal growth of the algae. After the organic matter in the sewage is treated, the sewage is transmitted to the sedimentation bin 1003 for sedimentation, thereby driving a large amount of floating algae into the sedimentation bin 1003. Since the floating algae easily floats on the water surface, it is not conducive to the separation of solid and liquid in the sewage. For this reason, by A filter screen 210 is fixedly connected, and the water outlet of the second delivery pipe 1012 is located below the filter screen 210. When the sewage enters the collection box 2, the filter screen 210 intercepts the suspended matter such as algae in the sewage, so that it stays in the collection box 2 to avoid entering the upper layer of the sewage, and the sludge collected in the collection box 2 is discharged to achieve the treatment of excess algae. On this basis, sludge and sewage also remain in the water storage chamber 1009 during the sewage treatment process, which is inconvenient to clean. For this reason, after the sewage treatment is completed, the sludge and sewage remaining in the water storage chamber 1009 are discharged together through the second drain port 1013 to the external sludge treatment system for subsequent treatment.

[0033] Since the sewage is in a flowing state during purification in the aerobic chamber 1002, the biofilm on the filler 7 will swing with the flow of the sewage, which can easily cause the biofilm to separate from the surface of the filler 7. For this purpose, bumps 7003 are provided on the outer wall, inner wall and spacer 7001 of the filler 7, and the contact area between the biofilm and the filler 7 is increased by the bumps 7003, thereby improving the stability of the biofilm attached to the filler 7 and preventing the biofilm from being washed away during the flow of sewage.

[0034] Example 2 On the basis of Example 1, Fig. 9 and Fig.10 As shown, it also includes a water supply pipe 301; the electric three-way valve 204 is connected to the water supply pipe 301; the water supply pipe 301 is connected to an external water supply device; a third drain port 1008 is opened on the front side of the aerobic bin 1002; the third drain port 1008 is connected to an external sludge treatment system.

[0035] It also includes an arc-shaped plate 302 ; four arc-shaped plates 302 arranged in a ring shape are fixedly connected to the scraper ring 7002 of each filler 7 .

[0036] When the biofilm is immersed in sewage for a long time, sand and other impurities that are difficult to decompose are easily attached to its surface (sand and gravel are impurities carried in sewage, and only sand and gravel are used as an example here), which makes it difficult to clean manually. Therefore, after the integrated treatment machine 1 has been running for a long time, the sewage in the aerobic bin 1002 is drained, and the electric three-way valve 204 is controlled to connect the water supply pipe 301 with the connecting pipe 203, and then the external water supply device is controlled to deliver clean water to the water supply pipe 301, so that the water flows through the connecting pipe 203 into the branch pipe 20301, and then enters the air supply pipe 206, so that the pressure in the air supply pipe 206 increases, and the compression part 20601 is in an expanded state, and then the water flows through the exhaust hole 20602 and sprays around the air supply pipe 206, so that the water flows from the exhaust hole 20602 toward the filler 7 to the filler 7 surface, and then the biofilm on the outer wall of the filler 7 is flushed by water flow, so as to clean the impurities such as sand on the surface of the biofilm, and the wastewater generated after cleaning is transmitted to the sludge treatment system through the third drain port 1008 for subsequent treatment. On this basis, the water flow is sprayed through the exhaust hole 20602 located on the compression part 20601, so that the water flow rushes to the part of the limiting tube 6 located between the two fillers 7, and the surface of the limiting tube 6 is flushed by the water flow to ensure the light transmittance of the limiting tube 6. Furthermore, by fixing the arc plate 302 on the scraper ring 7002, part of the water flow sprayed in the direction of the limiting tube 6 is guided to flow downward by the arc plate 302, so that the water flow enters the interior of the filler 7, so as to facilitate the flushing of the interior of the filler 7 by the water flow, thereby improving the cleaning effect of the filler 7.

[0037] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A composite biofilm sewage purifier, characterized in that it includes An integrated treatment machine (1), a collection box (2) and a medicine storage tank (3) are provided in the integrated treatment machine (1); five chambers are arranged in the integrated treatment machine (1), and the five chambers are, in order, an anaerobic chamber (1001), an aerobic chamber (1002), a sedimentation chamber (1003), a disinfection chamber (1004) and an equipment chamber (1005), and two adjacent chambers are interconnected; a water inlet (1006) is arranged on the left side of the integrated treatment machine (1), and the water inlet (1006) is connected to the anaerobic chamber (1001); a drainage port is provided on the front side of the disinfection chamber (1004); an inspection port is provided on the upper side of each chamber; a water quality monitor is installed in the aerobic chamber (1002); a collection box (2) is installed in the sedimentation chamber (1003); a sewage outlet ( 2001); a medicine storage tank (3) is installed in the equipment warehouse (1005); a disinfectant is stored in the medicine storage tank (3); the medicine storage tank (3) is connected to the disinfection warehouse (1004) through a pipeline; it also includes a tempered glass plate (4), a fixed plate (5), a limit tube (6), a filler (7) and an aeration system; a tempered glass plate (4) is arranged on the upper side of the aerobic warehouse (1002); a plurality of fixed plates (5) are installed in the aerobic warehouse (1002); a plurality of limit tubes (6) are fixedly connected to each fixed plate (5); a plurality of fillers (7) are sleeved on each limit tube (6); four spacers (7001) are arranged in each filler (7); an aeration system for increasing the dissolved oxygen content in the sewage is installed on the integrated treatment machine (1).

2. A composite biofilm sewage purifier according to claim 1, characterized in that: The aeration system comprises a connecting pipe (203), an electrically controlled three-way valve (204), an air delivery pipe (205) and an air supply pipe (206); the connecting pipe (203) is fixedly connected to the integrated processing machine (1); the connecting pipe (203) is connected to a plurality of branch pipes (20301); all the branch pipes (20301) are located in the aerobic chamber (1002); the connecting pipe (203) is connected to the electrically controlled three-way valve (204); the air delivery pipe (205) is connected to the electrically controlled three-way valve (204); the air delivery pipe (205) is connected to the external device The air supply device is connected; all the fillers (7) on the same limiting tube (6) are fixedly connected to a plurality of air supply pipes (206), and the portion of the air supply pipe (206) located between two adjacent fillers (7) is a compression portion (20601); the compression portion (20601) is configured as a bellows structure; each air supply pipe (206) is provided with an exhaust hole (20602), and each exhaust hole (20602) is provided with a micro one-way valve; and all the air supply pipes (206) are connected to adjacent branch pipes (20301).

3. A composite biofilm sewage purifier according to claim 1, characterized in that: It also includes a fixing seat (201) and an LED light tube (202); the limiting tube (6) is configured to be made of light-transmitting glass; each fixing plate (5) is fixedly connected to a fixing seat (201); each fixing seat (201) is mounted with a plurality of LED light tubes (202); each LED light tube (202) is located in an adjacent limiting tube (6); and all the LED light tubes (202) are connected to an external power supply device.

4. A composite biofilm sewage purifier according to claim 2, characterized in that: The exhaust holes (20602) are arranged in a ring shape along the circumference of the air supply pipe (206).

5. A composite biofilm sewage purifier according to claim 1, characterized in that: The invention also comprises a circulation system; the circulation system comprises a first water delivery pipe (207), a second water delivery pipe (208) and a water pump (209); the water pump (209) is fixedly connected to the integrated processing machine (1); the water inlet end of the water pump (209) is connected to the first water delivery pipe (207); the first water delivery pipe (207) is connected to the upper part of the aerobic bin (1002); a water storage chamber (1009) is provided at the bottom of the aerobic bin (1002); the front side of the water storage chamber (1009) A drainage outlet is also provided; a plurality of bases (1010) are provided at the bottom of the aerobic bin (1002); each base (1010) is located at the lower side of an adjacent filler (7); the interior of the base (1010) is provided with a hollow structure, and the interior of all bases (1010) is connected to the water storage chamber (1009); the water outlet of the water pump (209) is connected to the second water delivery pipe (208); and the second water delivery pipe (208) is connected to the water storage chamber (1009).

6. A composite biofilm sewage purifier according to claim 5, characterized in that: Two scraper rings (7002) are arranged symmetrically in the upper and lower parts on each filler (7).

7. A composite biofilm sewage purifier according to claim 6, characterized in that: A plurality of protrusions (7003) are provided on the outer wall, the inner wall and the spacer (7001) of each filler (7).

8. A composite biofilm sewage purifier according to claim 1, characterized in that: It also includes a filter screen (210); the collection box (2) is fixedly connected with the filter screen (210) for intercepting suspended matter such as algae in the sewage.

9. A composite biofilm sewage purifier according to claim 5, characterized in that: It also includes a water supply pipe (301); the electric-controlled three-way valve (204) is connected to the water supply pipe (301); the water supply pipe (301) is connected to an external water supply device; and a drainage port is also provided on the front side of the aerobic bin (1002).

10. A composite biofilm sewage purifier according to claim 7, characterized in that: It also includes an arc-shaped plate (302); a plurality of arc-shaped plates (302) are fixedly connected to the scraper ring (7002) of each filler (7).

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