CN212315857U - Organic wastewater's processing system device - Google Patents

Abstract

The utility model relates to an industrial wastewater treatment field especially relates to an organic waste water's processing system device. The utility model relates to a treatment system device of organic wastewater, which comprises an integrated purification system device, a dosing device and a cloth filter system; the integrated purification system device comprises an anaerobic reactor, an aerobic reactor, a high-turbidity purifier and a sludge treatment system; the integral purification system device is in a barrel shape as a whole, the outermost layer is an anaerobic reactor, the middle layer is an aerobic reactor, and the innermost layer is a high-turbidity purifier; the filter cloth filter tank system and the dosing device are both externally arranged on the purification system device. The utility model discloses combine a plurality of processing technology together, area is little, construction cycle is short, play water quality of water is stable and reaches the integrated equipment and the cloth filter system that each item index of sewage discharge, reuse of reclaimed water or reuse of miscellaneous water standard required, and easy management and operation and working costs are low.

Description

Organic wastewater's processing system device

Technical Field

The utility model relates to an industrial wastewater treatment field especially relates to an organic waste water's processing system device.

Background

In industries such as coal chemical industry, fine chemical industry, pharmacy, pesticide manufacturing, chemical intermediate, paper making industry, food brewing, sugar making, wine making and the like, a certain amount of high-concentration and high-turbidity production sewage is generated in the production process, the sewage contains a large amount of high-concentration organic matters, the Chemical Oxygen Demand (COD) content reaches 3000-5000mg/L, the biological oxygen demand reaches 1500-2500 mg/L, and suspended matters formed by undeposited activated sludge after biochemical treatment are all 500-2000 mg/L.

The traditional method for treating the organic wastewater with high concentration and high turbidity needs to perform anaerobic and aerobic treatment, a reinforced cement pool with a large volume needs to be established, and the sewage after the anaerobic and aerobic treatment has the advantages that suspended matters formed by unsettled activated sludge are high and cannot be directly discharged, and an independent sedimentation tank or a filtering tank needs to be newly built for treating the sewage and then discharging the sewage or reusing the sewage after reaching the standard, so that the process flow for treating the sewage is complex, the construction cost is high, the occupied area is large, the construction period is long, a plurality of devices are operated simultaneously, the equipment maintenance amount is large, and the operation cost is high.

The applicant has invented a purification system device for treating high-concentration and high-turbidity sewage (patent No. 201921158104.X), but in the actual treatment, the turbidity of the treated water can only be controlled to about 5NTU, and the water quality requirement is continuously improved along with the development of life of people, so that the turbidity of the water needs to be further optimized, and the water use standard below 1NTU is reached.

At present, the conventional advanced treatment system is generally a sand filtration system and a cloth filter system, the technical and economic indexes of the cloth filter system are obviously superior to those of the conventional sand filtration, but the cloth filter system in the market at present is not matched with the conventional integrated purification system of the applicant, a backwashing system is incomplete, continuous operation cannot be realized, and the sewage treatment capacity and the treatment efficiency are greatly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and provide a purification system device for organic wastewater, which has the advantages of small occupied area, short construction period, stable effluent quality, easy management and operation and low operating cost, and meets the standard index requirements of sewage discharge, reclaimed water reuse or miscellaneous water reuse, and the turbidity is lower than 1 NTU.

The utility model discloses the purpose and solve its main technical problem and adopt following technical scheme to realize:

a treatment system device for organic wastewater comprises an integrated purification system device, a dosing device and a cloth filter system device; the integrated purification system device comprises an anaerobic reactor, an aerobic reactor, a high-turbidity purifier and a sludge treatment system; the purification system device is in a barrel shape, the outermost layer is an anaerobic reactor, the middle layer is an aerobic reactor, and the innermost layer is a high-turbidity purifier; the filter cloth filter tank system and the dosing device are externally arranged on the purification system device;

the anaerobic reactor adopts an up-flow anaerobic sludge blanket-UASB and comprises a reaction zone and a three-phase separator; the reaction zone comprises a sludge bed and a suspended sludge layer, the sludge bed is positioned at the bottom of the anaerobic reactor and is a sludge layer with higher concentration, and the suspended sludge layer is positioned at the upper part of the sludge bed and is a sludge layer with lower concentration; wastewater enters from the bottom of the sludge bed and is mixed and contacted with sludge in the sludge bed, microorganisms decompose organic matters in the wastewater to generate biogas, and tiny biogas bubbles are combined continuously in the rising process to form larger biogas bubbles gradually; the bubbles rise to generate stronger stirring, and a suspended sludge layer is formed at the upper part of the sludge bed;

the three-phase separator is a gas, liquid and solid three-phase separator and comprises a reflecting plate, a gas chamber and a settling zone; the three-phase separator is arranged at the top of the anaerobic reactor and is positioned above the suspended sludge layer of the reaction zone; mixed liquid of marsh gas, waste water and sludge rises from the reaction area to the three-phase separator, and marsh gas bubbles are folded to the gas chamber and effectively separated and discharged when contacting with a reflecting plate at the lower part of the three-phase separator; the sludge and the wastewater enter a settling zone of the three-phase separator through a pore channel, supernatant is discharged from the upper part of the settling zone under the action of gravity, and the sludge at the lower part of the settling zone returns to the reaction zone along the inclined wall; under a certain hydraulic load, most of sludge particles can be kept in the reaction zone, so that the reaction zone has enough sludge; the anaerobic reactor is connected with the aerobic reactor through an anaerobic vertical shaft; the water inlet of the anaerobic vertical shaft is positioned at the upper part of the anaerobic reactor, and the water outlet of the anaerobic vertical shaft is positioned at the bottom of the aerobic reactor;

the aerobic reactor is an SBR reactor, namely a Sequencing Batch Reactor (SBR) of batch type intermittent activated sludge; the aerobic reactor comprises an aerator pipe and a soft filler, wherein the aerator pipe is positioned at the bottom of the aerobic reactor, and the soft filler is positioned at the lower half part of the aerobic reactor and is 1/3 of the overall height; the aerobic reactor is mainly orderly and intermittently operated in operation, the processes of water feeding, aeration, sedimentation and decanting are periodically and circularly carried out in the aerobic reactor, the biological reaction process and the mud-water separation process are combined in a pool to be completed, the space division is replaced by the time division, and the biodegradation and the sedimentation can be carried out under the stable state.

The aerobic reactor is connected with the high-turbidity purifier through an aerobic vertical shaft; the water inlet of the aerobic vertical shaft is positioned at the upper part of the aerobic reactor, and the water outlet of the aerobic vertical shaft is positioned at the bottom of the high turbidity purifier; the water outlet of the aerobic vertical shaft is connected with the bottom water inlet of the high turbidity purifier through a No. 2 water inlet pipe, the No. 2 water inlet pipe is transversely arranged, and a pipeline mixer is arranged on the No. 2 water inlet pipe;

the high-turbidity purifier is sequentially divided into a suspension area, a clarification area and a filtering area from bottom to top, wherein the equipment structure of the suspension area is in an inverted cone shape, so that the flow velocity is gradually reduced, and the suspension area is an area for forming and gradually growing alum floc; the section of the tank body in the clarification zone is the largest, so that the upward flow velocity is the slowest, and the settlement of alum blossom is facilitated; the filtering area is arranged in the middle of the high-turbidity purifier, so that the clarified water is filtered by a filter material layer for further advanced treatment;

the cloth filter is externally arranged on a purification system device and consists of a filtering system, a back washing system and a mud discharging system. The filter system of the cloth filter system is connected with the clean water pipe and comprises a filter disc, a filter disc water outlet pipe, a cloth filter effluent weir, a central support and a central pipe; the filter discs of the cloth filter system adopt modular standard design, each 2-8 discs are a standard module, each filter disc consists of 2 independent filter units, and each filter unit is provided with an independent water outlet pipe; the filter disc is fixed and fixed on the central support, the water outlet pipe of the filter disc is arranged at two sides above the filter disc, and the filtered clean water is collected into the filter cloth filter chamber water outlet weir through the water outlet pipe of the filter disc and then is discharged; the back flushing system of the cloth filter system comprises a back flushing pump, a back flushing valve, a driving motor, a filter disc rotary suction pipe and a fixed suction main pipeline; the fixed suction main pipeline is fixed on the end fixing end of the central pipe in the center of the filter disc, and the rotary suction pipe of the filter disc is fixed on the pipe body of the central pipe in the center of the filter disc; the filter disc rotary suction pipes are arranged in parallel along the radius direction of the disc surface of the filter disc; the disc surface of each filter disc is provided with a filter disc rotary suction pipe;

the sludge discharge system of the cloth filter system periodically discharges sludge at the bottom of the filter through a sludge discharge pump; the sludge discharge system is positioned at the bottom end of the cloth filter system, and the bottom end is in an inverted trapezoid shape.

The dosing device is cylindrical, a stirring paddle is arranged above the dosing device, a metering pump is arranged at the outlet of the dosing device to control the dosing amount, the dosing device is connected with the pipeline mixer, and blades in the pipeline mixer are utilized to play a good stirring role; the sludge treatment system is positioned in the lower part of the high-turbidity purifier and comprises a central sludge discharge barrel, a sludge radiation pipe and a sludge concentration chamber; the central sludge discharge barrel is connected with the sludge concentration chamber through a sludge radiation pipe; the sludge concentration chamber and the aerobic reactor are connected with a sludge collecting tank outside the tank body, and the sludge in the sludge concentration chamber and the sludge in the aerobic reactor are discharged into the sludge collecting tank and then dehydrated.

Preferably, the filter disc of the cloth filter system is provided with fiber fluff filter cloth, the effective filtering depth is 3-5mm, the filter disc is of a polypropylene hollow structure, the filter disc is in continuous operation during operation, backwashing water is filtered water without introducing exogenous water, the filtering area can be greatly increased in a fully submerged mode, and the using number of the disc sheets is reduced.

Preferably, a filter material backwashing pipe is arranged on a filtering area of the high-turbidity purifier, a switch valve is arranged on a pipeline of the filter material backwashing pipe, and when the filter material is blocked, clean water is pumped into the clean water tank from a backwashing pump through the switch valve to backwash the filter material.

Preferably, the filtering area adopts double-layer filtering materials, the lower layer filtering material is anthracite with the diameter of 1.0-1.8 mm, and the upper layer filtering material is quartz sand with the diameter of 0.5-1.0 mm.

Preferably, the high-turbidity purifier is further provided with a forced water outlet pipe, the forced water outlet pipe is transversely arranged at the upper part of a sludge concentration chamber of the high-turbidity purifier and is provided with a switch valve, the forced water outlet pipe is connected with a filter material backwashing pipe, sludge supernatant after static precipitation in the sludge concentration chamber is clarified, the turbidity can reach within 5NTU, and the sludge supernatant can be directly discharged into a clean water tank through the forced water outlet pipe flowing into the filter material backwashing pipe. By means of the elevation of the high-turbidity purifier, the water in the water outlet pipe is forced to automatically flow back to the clean water tank, so that the water yield of the water purifier can be increased, and the water outlet amount is increased; the forced water outlet is communicated with the suspension layer of the high-turbidity purifier, so that the sludge balance can be maintained, and the suspension layer is stabilized. Therefore, the sludge concentration in the sludge concentration chamber can be increased, the effect of prolonging the sludge discharge period is achieved, and the water consumption during sludge discharge is reduced.

Preferably, the dosing device is used for dosing a coagulant, and the coagulant is polyaluminium chloride, polyferric oxide or polyacrylamide.

Preferably, the sludge radiant tubes are arranged to be 4-8 and uniformly distributed at the lower part of the central sludge discharge barrel, and the sludge radiant tubes are inclined downwards by 30-45 degrees.

Compared with the prior art, the utility model obvious advantage and beneficial effect have. According to the technical scheme, the utility model discloses there is following advantage: firstly, the integrated purification device and the cloth filter system are adopted for double-layer purification, so that the occupied area is small, and the continuous operation can be realized; secondly, the traditional secondary sedimentation tank, a sludge reflux pump and a pipeline system are not needed, the structure is simpler and more convenient, and the operation is easy; thirdly, compared with the traditional operating system, the construction and maintenance cost is obviously reduced; fourthly, the biochemical treatment and suspended matter treatment effects are excellent, the treatment effect is stable, the effluent meets the requirements of various indexes of sewage discharge, reclaimed water reuse or miscellaneous water reuse, and the method is particularly suitable for industrial wastewater with high organic matter content, high ammonia nitrogen content and high turbidity; fifthly, the filter cloth filter is suitable for improving and renovating the existing system, and the turbidity of the outlet water is further improved after the filter cloth filter is added into the system. Sixthly, the special design is carried out by using a steel structure, the vertical shaft is used, so that the sewage only needs to be lifted once and then flows automatically, the diameter and the weight of the adopted central pipe are small, the required motor power is small, and the system can save more energy; seventhly, the filter discs of the cloth filter system are designed in a modular standardization mode, each 2-8 discs are a standard module, each filter disc is composed of 2 independent filter units, each filter unit is provided with an independent water outlet pipe, and the combination of the filter modules is adopted according to the water quantity, so that the integration degree of the system can be improved, and the installation and maintenance processes are greatly simplified; in the eighth aspect,

when the backwashing system is used for backwashing, the driving motor drives the rotating shaft of the central pipe to move, the rotary suction pipe of the filter disc rotates along with the rotation of the central pipe, and attachments on the surface of the whole filter disc are sucked; an electric valve back-flushing valve is arranged on the fixed suction main pipeline, and a control system controls the back-flushing system to be switched on and off in a time-sharing sequence, so that the purpose of cleaning disc by disc is achieved.

The device overcomes the difficulties of site limitation, short construction period, restriction of the prior process and the like, and has the advantages of simple structure, convenient operation, simple management, energy consumption saving, stable effluent quality and standard reaching.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic view of the internal structure of the cloth filter system of the present invention.

Wherein: 1. 1# water inlet pipe; 2. an anaerobic reactor; 3. an anaerobic shaft; 4. an aerobic reactor; 5. an aeration pipe; 6. a soft filler; 7. an aerobic vertical shaft; 8. a No. 2 water inlet pipe; 9. a suspension zone; 10. a clarification zone; 11. a filtration zone; 12. a clear water pipe; 13. a central mud discharging barrel; 14. a sludge radiant tube; 15. a sludge concentration chamber; 16. forcing the water outlet pipe; 17. a filter material backwashing pipe; 18. a three-phase separator; 19. a settling zone; 20. a reflective plate; 21. an air chamber; 22. a pipeline mixer; 23. a dosing device; 24. a drive motor; 25. a filter disc; 26. a water outlet pipe of the filter disc; 27. a cloth filter effluent weir; 28. a reverse suction pump; 29. the filter disc rotates the suction pipe; 30. a central support; 31. a sludge discharge pump; 32. a reverse suction valve; 33. a fixed suction main line; 34. a central tube.

Detailed Description

As shown in FIGS. 1 to 3, a system for treating organic wastewater comprises an integrated purification system, a chemical feeding device 23 and a cloth filter system; the integrated purification system device comprises an anaerobic reactor 2, an aerobic reactor 4, a high turbidity purifier and a sludge treatment system; the integrated purification system device is in a barrel shape, the outermost layer is an anaerobic reactor 2, the middle layer is an aerobic reactor 4, and the innermost layer is a high-turbidity purifier;

the anaerobic reactor 2 adopts an up-flow anaerobic sludge blanket-UASB and comprises a reaction zone and a three-phase separator 18; the reaction zone comprises a sludge bed and a suspended sludge layer, the sludge bed is positioned at the bottom of the anaerobic reactor 2 and is a sludge layer with higher concentration, and the suspended sludge layer is positioned at the upper part of the sludge bed and is a sludge layer with lower concentration; wastewater enters from the bottom of the sludge bed and is mixed and contacted with sludge in the sludge bed, microorganisms decompose organic matters in the wastewater to generate biogas, and tiny biogas bubbles are combined continuously in the rising process to form larger biogas bubbles gradually; the bubbles rise to generate stronger stirring, and a suspended sludge layer is formed at the upper part of the sludge bed;

the three-phase separator 18 is a gas, liquid and solid three-phase separator and comprises a reflecting plate 20, a gas chamber 21 and a settling zone 19; the three-phase separator 18 is arranged at the top of the anaerobic reactor 2 and is positioned above the suspended sludge layer of the reaction zone; the mixed liquid of the marsh gas, the waste water and the sludge rises from the reaction area to the three-phase separator 18, and when the marsh gas bubbles touch the reflecting plate 20 at the lower part of the three-phase separator 18, the marsh gas bubbles are folded to the gas chamber 21 and are effectively separated and discharged; the sludge and waste water enter the settling zone 19 of the three-phase separator 18 through the pore canal, the supernatant is discharged from the upper part of the settling zone 19 under the action of gravity, and the sludge at the lower part of the settling zone 19 returns to the reaction zone along the inclined wall. Under a certain hydraulic load, most of sludge particles can be kept in the reaction zone, so that the reaction zone has enough sludge.

The anaerobic reactor 2 is connected with an aerobic reactor 4 through an anaerobic vertical shaft 3; the water inlet of the anaerobic vertical shaft 3 is positioned at the upper part of the anaerobic reactor 2, and the water outlet of the anaerobic vertical shaft 3 is positioned at the bottom of the aerobic reactor 4;

the aerobic reactor 4 is an SBR reactor, namely a Sequencing Batch Reactor (SBR) of batch type intermittent activated sludge; the aerobic reactor comprises an aeration pipe 5 and a soft filler 6, wherein the aeration pipe 5 is positioned at the bottom of the aerobic reactor 4, and the soft filler 6 is positioned at 1/3 which is the integral height of the lower half part of the aerobic reactor 4; the aerobic reactor 4 is mainly orderly and intermittently operated in operation, the processes of water inlet, aeration, sedimentation and decanting are periodically and circularly carried out in the aerobic reactor 4, the biological reaction process and the mud-water separation process are combined in a pool to be completed, the space division is replaced by the time division, and the biological degradation and the sedimentation can be carried out under the steady state.

The aerobic reactor 4 is connected with a high-turbidity purifier through an aerobic vertical shaft 7; the water inlet of the aerobic vertical shaft 7 is positioned at the upper part of the aerobic reactor 4, and the water outlet of the aerobic vertical shaft 7 is positioned at the bottom of the high turbidity purifier; the water outlet of the aerobic vertical shaft 7 is connected with the bottom water inlet of the high turbidity purifier through a No. 2 water inlet pipe 8, the No. 2 water inlet pipe 8 is transversely arranged, and a pipeline mixer 22 is arranged on the No. 2 water inlet pipe 8;

the high-turbidity purifier is sequentially divided into a suspension zone 9, a clarification zone 10 and a filtering zone 11 from bottom to top, wherein the suspension zone 9 is in an inverted cone-shaped equipment structure, so that the flow velocity is gradually reduced, and the suspension zone is an area formed and gradually grown alum floc; the section of the tank body of the clarification zone 10 is the largest, so that the upward flow velocity is the slowest, and the settlement of alum blossom is facilitated; the filtering area 11 is arranged in the middle of the high-turbidity purifier, so that the clarified water is filtered by a filter material layer for further advanced treatment.

The cloth filter system comprises a filtering system, a backwashing system and a sludge discharge system; the filter system of the cloth filter system is connected with the clean water pipe 12 of the integrated purification system device, and comprises a filter disc 25, a filter disc water outlet pipe 26, a cloth filter effluent weir 27, a central support 30, a central pipe 34, a back washing pump 28, a back washing valve 32, a driving motor 24, a filter disc rotary suction pipe 29, a fixed suction main pipeline 33 and a sludge discharge pump 31.

The filter discs 25 of the cloth filter system adopt modular standard design, each 2-8 discs are a standard module, each filter disc is composed of 2 independent filter units, each filter unit is provided with an independent water outlet pipe, each filter unit is relatively independent, and different filter module combinations can be adopted according to the water quantity, so that the integration degree of the system can be improved, and the installation and maintenance processes are greatly simplified;

the filter disc 25 is fixed and fixed on the central bracket 30, the main fixed suction pipeline 33 is fixed on the end fixing end of the central pipe 34 in the center of the filter disc 25, and the rotary suction pipe 29 of the filter disc is fixed on the pipe body of the central pipe 34 in the center of the filter disc 25; the filter disc rotary suction pipe 29 is arranged in parallel along the radius direction of the disc surface of the filter disc 25; a filter disc rotary suction pipe 29 is arranged on the disc surface of each filter disc 25; during backwashing, the filter disc 25 is also fixed, the driving motor 24 drives the central pipe 34 in the center of the filter disc 25 to move in a rotating mode, and the rotary suction pipe 29 of the filter disc sucks attachments on the disc surface of the whole filter disc 25 along with the rotation of the central pipe 34; the central tube 34 is not only the rotating means of the filter disc rotating suction tube, but also acts as a transport line for the muddy water. The diameter and weight of the central tube 34 are small, the required motor power is small, and the system can save more energy; when the water level of the filter tank reaches the set water level, the negative pressure generated by the back washing pump 28 sucks out the filtered water from the filter disc 25, and simultaneously sucks out the solid matters deposited on the filter disc 25 together, thereby achieving the purpose of cleaning the filter disc 25; the pumped mud water is discharged from the central pipe 34 to the fixed suction main pipeline 33 and the back washing pump 28 through the filter disc rotating suction pipe 29, the electric valve back washing valve 32 is configured on the fixed suction main pipeline 33, and the time-sharing sequential opening and closing of the electric valve back washing valve are controlled by the control system, so that the purpose of disc-by-disc cleaning is achieved; the bottom of the cloth filter system is in an inverted trapezoid shape, and sludge at the bottom is periodically discharged through a sludge discharge pump 31.

Wherein, the dosing device 23 is cylindrical, a stirring paddle is arranged above the dosing device 23, a metering pump is arranged at the outlet of the dosing device 23 to control the dosing amount, the dosing device 23 is connected with the pipeline mixer 22, and blades in the pipeline mixer 22 are utilized to play a good stirring role.

Wherein, the sludge treatment system is positioned in the lower part of the high-turbidity purifier and comprises a central sludge discharge barrel 13, a sludge radiation pipe 14 and a sludge concentration chamber 15. The central sludge discharge barrel 13 is connected with a sludge concentration chamber 15 through a sludge radiant tube 14. The sludge concentration chamber 15 and the aerobic reactor 4 are connected with a sludge collecting tank outside the tank body, and the sludge in the sludge concentration chamber 15 and the sludge in the aerobic reaction tank 4 are discharged into the sludge collecting tank through a sludge discharge pipe and then are dehydrated.

The filter area of the high-turbidity purifier is provided with a filter material backwashing pipe 17, a switch valve is arranged on a pipeline of the filter material backwashing pipe 17, and when the filter material is blocked, clean water is pumped into the clean water tank from a backwashing pump through the switch valve to backwash the filter material.

Wherein, the filtering area 11 adopts double-layer filtering materials, the lower layer filtering material is anthracite with the diameter of 1.0-1.8 mm, and the upper layer filtering material is quartz sand with the diameter of 0.5-1.0 mm.

The high-turbidity purifier is also provided with a forced water outlet pipe 16, the forced water outlet pipe 16 is transversely arranged at the upper part of a sludge concentration chamber 15 of the high-turbidity purifier, the forced water outlet pipe 16 is provided with a switch valve, the forced water outlet pipe 16 is connected with a clear water pipe 12, the sludge supernatant after the sludge concentration chamber 15 is statically precipitated is clarified, the turbidity can reach within 5NTU, and the sludge can flow into a filter material backwashing pipe 17 through the forced water outlet pipe 16 and is directly discharged into a clear water tank; by means of the elevation of the high-turbidity purifier, the water in the water outlet pipe 16 is forced to automatically flow back to the clean water tank, so that the water yield can be increased, and the water outlet quantity can be increased; the forced water outlet pipe 16 is communicated with the suspension layer 9 of the high-turbidity purifier, so that the sludge balance can be maintained, the suspension layer 9 is stabilized, the sludge concentration in the sludge concentration chamber 15 can be increased, the sludge discharge period is prolonged, and the water consumption during sludge discharge is reduced.

The dosing device 23 is used for dosing a coagulant, and the coagulant is polyaluminium chloride, polyferric oxide or polyacrylamide.

Wherein, the sludge radiant tubes 14 are arranged into 4-8, are uniformly distributed at the lower part of the central sludge discharge barrel 13, and are inclined downwards by 30-45 degrees.

The sewage treatment principle is as follows: firstly, sewage in an adjusting tank enters an anaerobic reactor 2 through a No. 1 water inlet pipe 1 by a lift pump, the upper end of the anaerobic reactor 2 is provided with a three-phase separator 18, the lower end of the three-phase separator 18 is a settling zone 19, the sewage stays in a hydrolysis acidification anaerobic reactor for 10-12 hours, the anaerobic reactor 2 adopts an up-flow anaerobic sludge bed-UASB (upflow anaerobic sludge blanket-anaerobic sludge blanket) and comprises a reaction zone and the three-phase separator 18, microorganisms decompose organic matters in the sewage to generate methane, and tiny methane bubbles are combined continuously in the ascending process to form larger methane bubbles gradually; the bubbles rise to generate stronger stirring, and a suspended sludge layer is formed at the upper part of the sludge bed; the mixed liquid of the marsh gas, the waste water and the sludge rises from the reaction area to the three-phase separator 18, and when the marsh gas bubbles touch the reflecting plate 20 at the lower part of the three-phase separator 18, the marsh gas bubbles are folded to the gas chamber 21 and are effectively separated and discharged; the sludge and waste water enter the settling zone 19 of the three-phase separator 18 through the pore canal, the supernatant is discharged from the upper part of the settling zone 19 under the action of gravity, and the sludge at the lower part of the settling zone 19 returns to the reaction zone along the inclined wall. Under a certain hydraulic load, most of sludge particles can be kept in the reaction zone, so that the reaction zone has enough sludge. The sewage treated by the anaerobic reactor 2 automatically flows into an SBR aerobic reactor 4 from the top of the anaerobic reactor 2 through an anaerobic vertical shaft 3, is periodically circulated in the SBR aerobic reactor 4, is aerated through an aeration pipe 5, is coated on a soft filler 6, has hydraulic retention time of 6 hours, then automatically flows into an aerobic vertical shaft 7, enters a high-turbidity purifier through a tangential 2# water inlet pipe 8, sequentially passes through a suspension zone 9, a clarification zone 10, a filtration zone 11 and the high-turbidity purifier, and has four reaction stages in total, wherein in the first stage, coagulation is carried out, the sewage treated by the anaerobic reactor 2 and the aerobic reactor 4 is tangentially connected through the 2# water inlet pipe 8, the water flow of the sewage is rotated and also plays a role of stirring, a pipeline mixer 22 is arranged on the 2# water inlet pipe 8, coagulant such as polyaluminium chloride, polyferric or polyacrylamide and the like is added into the pipeline mixer 22 through a dosing device 23, the blades in the pipeline mixer 22 are utilized to play a good role in stirring, and the sewage treated by the anaerobic reactor 2 and the aerobic reactor 4 is fully and uniformly mixed with the coagulant at a certain speed. And in the second stage, suspension is carried out, wherein the suspension zone 9 is a region formed and gradually grown up by alum flocs, the stirring speed is required to be gradually reduced, the shearing force of water flow to the alum flocs is reduced so as to avoid breaking the large alum flocs, and the suspension zone 9 is arranged into an inverted cone with the flow speed gradually reduced. And in the third stage, clarification is carried out, the section of the tank body in the clarification area 10 is the largest, so that the upward flow velocity is the slowest, and the settlement of alum blossom is facilitated. And in the fourth stage, filtering is carried out, wherein a filtering area 11 adopts a double-layer filtering material filtering area consisting of anthracite coal with the diameter of 1.0-1.8 mm and quartz sand with the diameter of 0.5-1.0 mm, so that the clarified water is further filtered by a filtering material layer. Finally, the filtered water enters the cloth filter system through the clean water pipe 12, and enters the clean water tank after being filtered by the cloth filter system.

During the operation of the high turbidity purifier, sludge is continuously increased, the sludge settled after condensation overflows into the central sludge discharge barrel 13, enters the sludge concentration chamber 15 through the sludge radiation pipe 14 below the central sludge discharge barrel 13 for settlement, and after certain sludge concentration and working period are reached, the sludge discharge valve is opened immediately to discharge sludge to the sludge collection pool arranged outside.

The sludge supernatant fluid after the static precipitation of the sludge concentration chamber 15 flows into a filter material backwashing pipe 17 through a forced water outlet pipe 16 and is discharged into a clean water tank; a filtering material backwashing pipe 17 is arranged on a filtering area 11 in the device and is connected with a clean water tank; the pipeline of the filter material backwashing pipe 17 is provided with a switch valve, and when the filter material is blocked, clean water is pumped into the clean water tank from a backwashing pump through the switch valve to backwash the filter material.

Sludge in the sludge concentration chamber 15 and sludge in the SBR aerobic reaction tank 4 are discharged into a sludge collection tank and then are dehydrated, sludge after filter pressing is periodically transported by an automobile and poured into a specified slag yard, and filter pressing filtrate returns to the regulating tank.

The filter discs 25 of the cloth filter system adopt modular standard design, each 2-8 discs are a standard module, the filter components are mainly the filter discs 25 of fiber fluff filter cloth, each filter disc is composed of 2 independent filter units, each filter unit is provided with an independent water outlet pipe, each filter unit is relatively independent, different filter module combinations can be adopted according to the water quantity, the integration degree of the system can be improved, and the installation and maintenance processes are greatly simplified; the filter disc 25 is fixed and fixed on the central bracket 30, the main fixed suction pipeline 33 is fixed on the end fixing end of the central pipe 34 in the center of the filter disc 25, and the rotary suction pipe 29 of the filter disc is fixed on the pipe body of the central pipe 34 in the center of the filter disc 25; the filter disc rotary suction pipes 29 are arranged in parallel along the radius direction of the disc surface of the filter disc 25; a filter disc rotary suction pipe 29 is arranged on the disc surface of each filter disc 25; during backwashing, the filter disc 25 is also fixed, the driving motor 24 drives the central pipe 34 in the center of the filter disc 25 to move in a rotating mode, and the rotary suction pipe 29 of the filter disc sucks attachments on the disc surface of the whole filter disc 25 along with the rotation of the central pipe 34; the central tube 34 is not only the rotating means of the filter disc rotating suction tube, but also acts as a transport line for the muddy water. The diameter and weight of the central tube 34 are small, the required motor power is small, and the system can save more energy; when the water level of the filter tank reaches the set water level, the negative pressure generated by the back washing pump 28 sucks out the filtered water from the filter disc 25, and simultaneously sucks out the solid matters deposited on the filter disc 25 together, thereby achieving the purpose of cleaning the filter disc 25; the pumped mud water is discharged from the central pipe 34 to the fixed suction main pipeline 33 and the back washing pump 28 through the filter disc rotating suction pipe 29, the electric valve back washing valve 32 is arranged on the fixed suction main pipeline 33, and the time-sharing sequential opening and closing of the electric valve back washing valve are controlled by the control system, so that the purpose of disc-by-disc cleaning is achieved. The sludge discharge system of the cloth filter system is positioned at the bottom end of the cloth filter system, and the bottom end is in an inverted trapezoid shape and discharges sludge at the bottom of the filter periodically through a sludge discharge pump 31;

the Chemical Oxygen Demand (COD) content in the treated wastewater is lower than 60-80mg/L, and the Biological Oxygen Demand (BOD)₅The content is lower than 30mg/L, the pH is 6-9, the turbidity is less than 1NTU, and the water reaches the standard for discharge or meets the standard for reclaimed water reuse or meets the index requirement for the reuse of the water for general use.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention.

Claims (10)

1. A treatment system device of organic waste water is characterized in that: comprises an integrated purification system device, a dosing device and a cloth filter system;

the integrated purification system device comprises an anaerobic reactor (2), an aerobic reactor (4), a high-turbidity purifier and a sludge treatment system; the integral purification system device is integrally in a barrel shape, the outermost layer is an anaerobic reactor (2), the middle layer is an aerobic reactor (4), and the innermost layer is a high-turbidity purifier; the anaerobic reactor (2) is connected with an aerobic reactor (4) through an anaerobic vertical shaft (3); the water inlet of the anaerobic vertical shaft (3) is positioned at the upper part of the anaerobic reactor (2), and the water outlet of the anaerobic vertical shaft (3) is positioned at the bottom of the aerobic reactor (4); the aerobic reactor (4) is connected with the high-turbidity purifier through an aerobic vertical shaft (7); the water inlet of the aerobic vertical shaft (7) is positioned at the upper part of the aerobic reactor (4), and the water outlet of the aerobic vertical shaft (7) is positioned at the bottom of the high turbidity purifier; the water outlet of the aerobic vertical shaft (7) is connected with the bottom water inlet of the high turbidity purifier through a No. 2 water inlet pipe (8); the sludge treatment system is positioned at the lower part of the high-turbidity purifier;

the cloth filter system is externally arranged on the integrated purification system device and is connected with a clear water pipe (12) of the integrated purification system device, and the cloth filter system comprises a filtering system, a backwashing system and a sludge discharge system;

the filter system of the cloth filter system is connected with a clean water pipe (12) and comprises a filter disc (25), a filter disc water outlet pipe (26), a cloth filter effluent weir (27), a central support (30) and a central pipe (34);

the filter discs (25) of the cloth filter system adopt modular standard design, each 2-8 discs are a standard module, each filter disc consists of 2 independent filter units, and each filter unit is provided with an independent water outlet pipe;

the filter disc (25) is fixed and is fixed on the central support (30), the filter disc water outlet pipes (26) are arranged at two sides above the filter disc (25), and the filtered clean water is discharged after being converged into the filter cloth filter chamber water outlet weir (27) through the filter disc water outlet pipes (26);

the back flushing system of the cloth filter system comprises a back flushing pump (28), a back flushing valve (32), a driving motor (24), a filter disc rotary suction pipe (29) and a fixed suction main pipeline (33); the fixed suction main pipeline (33) is fixed on the end fixing end of a central pipe (34) in the center of the filter disc (25), and the rotary suction pipe (29) of the filter disc is fixed on the pipe body of the central pipe (34) in the center of the filter disc (25); the rotary suction pipe (29) of the filter disc is arranged in parallel along the radius direction of the disc surface of the filter disc (25); a filter disc rotary suction pipe (29) is arranged on the disc surface of each filter disc (25);

the sludge discharge system of the cloth filter system periodically discharges sludge at the bottom of the filter through a sludge discharge pump (31); the sludge discharge system is positioned at the bottom end of the cloth filter system, and the bottom end is in an inverted trapezoid shape.

2. The apparatus of claim 1, wherein: the filter disc (25) of the cloth filter system is provided with fiber fluff filter cloth, the effective filtering depth is 3-5mm, and the cloth filter system is of a polypropylene hollow structure, so that the cloth filter system can continuously run during running.

3. The apparatus of claim 1, wherein: the anaerobic reactor (2) adopts an up-flow anaerobic sludge bed-UASB; the aerobic reactor (4) is an SBR reactor, namely a Sequencing Batch Reactor (SBR) of batch type intermittent activated sludge; the high-turbidity purifier is sequentially divided into a suspension area (9), a clarification area (10) and a filtering area (11) from bottom to top.

4. The apparatus of claim 1, wherein: the sludge treatment system comprises a central sludge discharge barrel (13), a sludge radiant tube (14) and a sludge concentration chamber (15); the central sludge discharge barrel (13) is connected with a sludge concentration chamber (15) through a sludge radiant tube (14).

5. The apparatus of claim 1, wherein: a filter material backwashing pipe (17) is arranged on a filtering area (11) of the high-turbidity purifier, a switch valve is arranged on a pipeline of the filter material backwashing pipe (17), and when the filter material is blocked, clean water is pumped into the clean water tank from the clean water tank through a backwashing pump through the switch valve to backwash the filter material.

6. The apparatus of claim 1, wherein: the filtering area (11) of the high-turbidity purifier adopts double-layer filtering materials, the lower layer filtering material is anthracite with the diameter of 1.0-1.8 mm, and the upper layer filtering material is quartz sand with the diameter of 0.5-1.0 mm.

7. The apparatus of claim 1, wherein: the high-turbidity purifier is also provided with a forced water outlet pipe (16), the forced water outlet pipe (16) is transversely arranged at the upper part of a sludge concentration chamber (15) of the high-turbidity purifier, the forced water outlet pipe (16) is provided with a switch valve, and the forced water outlet pipe (16) is connected with a filter material backwashing pipe (17).

8. The apparatus of claim 1, wherein: the dosing device (23) is used for dosing a coagulant, and the coagulant is polyaluminium chloride, polyferric oxide or polyacrylamide.

9. The apparatus of claim 4, wherein: the number of the sludge radiant tubes (14) is 4-8, the sludge radiant tubes are uniformly distributed at the lower part of the central sludge discharge barrel (13), and the sludge radiant tubes are inclined downwards by 30-45 degrees.

10. The apparatus of claim 1, wherein: 2# inlet tube (8) for horizontal setting to be equipped with pipeline mixer (22) on 2# inlet tube (8), pipeline mixer (22) link to each other with charge device (23).

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