CN216837538U - Distributed sewage treatment and deep purification jar - Google Patents
Distributed sewage treatment and deep purification jar Download PDFInfo
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- CN216837538U CN216837538U CN202122915688.4U CN202122915688U CN216837538U CN 216837538 U CN216837538 U CN 216837538U CN 202122915688 U CN202122915688 U CN 202122915688U CN 216837538 U CN216837538 U CN 216837538U
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Abstract
The utility model belongs to the technical field of wastewater treatment equipment, and discloses a distributed sewage treatment and deep purification tank. The utility model has low investment cost and operation cost, adopts two groups of structures with the same central shaft, has compact structure, can adopt polyethylene as main materials for the tank body, the pre-reaction zone and the cylinder body of the deep purification unit and the internal structure thereof, adopts cheap scrap iron and granular activated carbon as the filler in the flow-off micro-electrolysis zone flow-off ball, has low material and processing cost and low operation energy consumption in the operation process, and is suitable for treating domestic sewage in rural areas and industrial wastewater of individual workshop type factories.
Description
Technical Field
The utility model belongs to the technical field of wastewater treatment equipment, and particularly relates to a distributed sewage treatment and deep purification tank.
Background
The treatment of domestic sewage and industrial wastewater of small workshop factories in rural areas is a key and difficult point in the field of water environment protection. At present, sewage treatment process technologies such as Membrane Bioreactor (MBR), Sequencing Batch Reactor (SBR), anaerobic/aerobic (A/O) process, biological contact oxidation and the like are widely applied in rural areas, but the problems of unstable effluent quality, poor denitrification or dephosphorization effect, high operation cost, great difficulty in maintenance and management and the like exist. In addition, the flow-off biochemical technology has the advantages of good effluent quality, stable treatment effect, small occupied area, low sludge yield, low treatment cost, simple maintenance and management and the like, but has the defects of high construction investment cost, poor phosphorus removal effect and the like, and the popularization and the application of the flow-off biochemical technology in rural areas are limited. The flow-off biochemical reactor is usually in a cuboid structure, is made of carbon steel, stainless steel, glass fiber reinforced plastic, PVC plates and the like, and has high material and processing cost and high investment cost. On the other hand, the design and the removal of phosphorus in the operation of a small-sized sewage treatment system have difficulties: the biological phosphorus removal technology has the problems of complex pipeline, large sludge yield, low operation efficiency, poor stability and the like, and the chemical phosphorus removal technology has the problems of large chemical sludge yield, large treatment difficulty of chemical/biological mixed sludge and the like. The iron-carbon micro-electrolysis technology has the characteristics of strong water quality adaptability, good treatment effect, good phosphorus removal performance, low treatment energy consumption, simple operation and maintenance, low sludge yield (obviously lower than that of the chemical phosphorus removal technology) and the like, and can be used for pretreatment of industrial wastewater and advanced treatment of sewage (wastewater). However, the iron-carbon micro-electrolysis technology adopts commercial electrolysis materials, has high price and the problems of hardening and blocking of the electrolysis materials, and restricts the application of the iron-carbon micro-electrolysis technology in the deep treatment of sewage (wastewater).
Through the above analysis, the problems and defects of the prior art are as follows:
(1) the existing rural domestic sewage or wastewater common treatment device has unstable effluent quality, poor denitrification or dephosphorization effect, high operation cost and great maintenance and management difficulty.
(2) The existing flow-off biochemical reactor is usually in a cuboid structure, has the defects of high construction investment cost, poor phosphorus removal effect and the like, and limits the popularization and application in rural areas.
(3) The existing iron-carbon micro-electrolysis technology adopts a commercial electrolysis material with high price, and has the problems of hardening and blocking of the electrolysis material, thereby restricting the application of the iron-carbon micro-electrolysis technology in the deep treatment of sewage.
The difficulty in solving the above problems and defects is: the flow-off biochemical reactor is generally of a cuboid structure, so that the flow-off biochemical reactor has good plug flow characteristics in hydraulics, carbon steel, stainless steel or large-thickness glass fiber reinforced plastic and PVC plates are preferably adopted as reactor materials to ensure the requirements of lateral rigidity, but the material cost and the processing cost are high; the free-flow biochemical reactor hardly produces excess sludge and has no biological phosphorus removal performance, the iron-carbon micro-electrolysis technology can effectively remove phosphorus in sewage, and the free-flow biochemical reactor has complementarity with the free-flow biochemical technology, but the commercialized electrolysis material is high in price and has the problems of hardening and blocking of the electrolysis material.
The utility model adopts 2 groups of structures with the same central shaft to divide the tank body into a plurality of areas, keeps the characteristics of the plug flow type reactor, greatly reduces the requirements on the lateral rigidity of the tank body, further reduces the material and processing cost (such as a Polyethylene (PE) tank) of the flow-off biochemical reactor, and is convenient for the popularization and application of the flow-off biochemical technology in a small sewage or wastewater treatment system; the flow separation micro-electrolysis region creatively integrates micro-electrolysis and flow separation technologies, so that phosphorus can be removed economically and effectively, and the problems of hardening and blocking in the application of the micro-electrolysis technology to wastewater treatment and advanced treatment are solved effectively.
The significance for solving the problems and the defects is as follows: the high-efficiency composite biodegradation/conversion, flow separation, chemical adsorption/precipitation, electrochemical oxidation/reduction, interception/filtration and other effects are carried out in a simple tank body, the characteristics of a plug flow type reactor are formed on the aspect of macroscopic hydraulics, and micro reaction conditions suitable for biological sewage treatment and electrochemical advanced treatment are formed in different areas of the tank body. The distributed sewage treatment and deep purification tank has the advantages of compact structure, high treatment efficiency, stable operation, simple maintenance and the like, can realize unattended operation, is suitable for distributed domestic sewage treatment and deep purification in rural and remote areas, and can also be used as an important unit for industrial wastewater treatment of a workshop type factory.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a distributed sewage treatment and deep purification tank.
The utility model is realized in this way, a distributed sewage treatment and deep purification tank is provided with:
a tank body;
the flow separation biochemical device and the deep purification device are arranged in the tank body, the flow separation biochemical device is provided with a pre-reaction zone and a main reaction zone which are coaxially arranged, the pre-reaction zone is sleeved on the inner side of the main reaction zone, the deep purification device is provided with a flow separation micro-electrolysis zone and a water outlet zone which are coaxially arranged, and the water outlet zone is sleeved on the inner side of the flow separation micro-electrolysis zone;
the pre-reaction zone, the main reaction zone, the flow-separation micro-electrolysis zone and the water outlet zone are sequentially connected, the pre-reaction zone is communicated with the main reaction zone through a pre-reaction zone water passing hole, the main reaction zone is communicated with the flow-separation micro-electrolysis zone through a flow-separation micro-electrolysis zone water passing hole, and the flow-separation micro-electrolysis zone is communicated with the water outlet zone through a water outlet zone water passing hole;
the upper part of the packing area of the pre-reaction area is communicated with a water inlet pipe, the lower end of the side surface of the tank body is provided with a sludge discharge pipe communicated with the main reaction area, and the upper end of the other side of the tank body is provided with a water outlet pipe communicated with the water outlet area.
Further, the bottom parts of the pre-reaction zone and the main reaction zone are respectively provided with an annular aeration pipe and an aerator communicated with the annular aeration pipe.
Further, a pre-reaction zone filler zone, a pre-reaction zone water distribution plate and a pre-reaction zone water collection zone are sequentially arranged in the pre-reaction zone from top to bottom;
and the filler area of the pre-reaction area and the main reaction area are respectively filled with flow-off balls, the diameter of each flow-off ball is 8-25cm, the spherical surface of each flow-off ball is in a grid shape, and the filler is filled in a ball shell.
Furthermore, a flow-ionization micro-electrolysis region filler region, a flow-ionization micro-electrolysis region water distribution plate and a flow-ionization micro-electrolysis region water collection region are sequentially arranged in the flow-ionization micro-electrolysis region from top to bottom;
the flow-separation micro-electrolysis area filler area is filled with flow-separation micro-electrolysis area flow-separation balls, the diameter of each flow-separation micro-electrolysis area flow-separation ball is 3-8cm, the spherical surface is in a grid shape, and the spherical shell is filled with filler.
Further, a water outlet area water distribution area, a water outlet area water distribution plate, a water outlet area filler area and a clear water area are sequentially arranged in the water outlet area from bottom to top;
and the water outlet area is filled with filler which is arranged on the water distribution plate in a frame mode.
Furthermore, the outer wall of the water collecting area of the pre-reaction area is provided with a first water passing hole, and the bottom of the water collecting area is provided with a first sludge discharging hole.
Furthermore, a second water passing hole and a first water outlet pipe wall penetrating hole are formed in the upper portion of the outer wall of the flow-separation micro-electrolysis region, and a second sludge discharging hole is formed in the bottom of the outer wall of the flow-separation micro-electrolysis region.
Furthermore, the outer wall of the water outlet area is provided with a third water passing hole and a second water outlet pipe wall penetrating hole, and the bottom of the water outlet area is provided with a third sludge discharge hole.
Further, an air pump and a control cabinet are fixed on two sides of the upper end of the tank body respectively, and the air pump is connected with the aeration pipe.
By combining all the technical schemes, the utility model has the advantages and positive effects that: the utility model has low investment cost and operation cost, adopts two groups of structures with the same central shaft, has compact integral structure, can adopt polyethylene as main materials for the tank body, the pre-reaction zone and the cylinder body of the deep purification unit and the internal structure thereof, and can be processed in batch, the filler in the flow ball of the flow micro-electrolysis zone adopts cheap scrap iron and (columnar) granular activated carbon, and the power consumption in the operation process mainly comes from an air pump (an air blower) and a water pump, so the utility model has low material and processing cost and low operation energy consumption, and is suitable for treating domestic sewage in rural areas and industrial wastewater of small workshop type factories.
The utility model has strong water quality adaptability and good operation stability, the sewage treatment and deep purification tank has the characteristics of a plug flow type reactor on the whole, the pre-reaction zone and the main reaction zone have strong mixing action, and the sewage treatment and deep purification tank has the composite actions of biodegradation/conversion, flow separation, chemical adsorption/precipitation, electrochemical oxidation/reduction, interception/filtration and the like, can bear larger water quality and water quantity fluctuation and resist low and medium concentration toxic organic matters, so the utility model is suitable for domestic sewage in rural areas and industrial wastewater of small workshop type plants.
The utility model has low yield of excess sludge and chemical sludge, long-term engineering practice shows that the flow-separation biochemical process with long hydraulic retention time almost has no discharge of excess sludge, electrolysis products such as iron ions, ferric hydroxide and the like generated by a flow-separation micro-electrolysis zone in the advanced treatment unit can effectively combine/adsorb phosphate, the yield of the chemical sludge is low, and the chemical sludge accumulated in a water collection zone and a water distribution zone of a water outlet zone of the flow-separation micro-electrolysis zone (periodically discharged) has adsorption/filtration functions, thereby further improving the quality of outlet water.
The utility model has simple maintenance and management, the flow-away biochemical region and the flow-away micro-electrolysis region have no blockage, and the sewage treatment and deep purification tank only needs an air pump (a blower), a water pump, simple instruments and meters and an automatic control system, has no chemical dosing and precipitation separation, only needs to discharge chemical sludge regularly, and can realize unattended operation.
The utility model has good pollutant removal effect and stable effluent quality, the removal rate of SS is more than 90 percent, the removal rate of COD is more than 90 percent, the removal rate of TP is more than 80 percent, and the removal rate of TN is more than 65 percent, and the effluent quality of the domestic sewage treated by the sewage treatment and deep purification tank can meet the first-class B standard of pollutant discharge standard of urban sewage treatment plants; when the flow-separation micro-electrolysis area is aerated and oxygenated, the SS removal rate is more than 95 percent, the COD removal rate is more than 95 percent, the TP removal rate is more than 95 percent, and when the treated water part reflows, the TN removal energy can be improved by about 10 to 25 percent, and the effluent quality can meet the first-grade A standard or the standard of water for recycling agriculture, forestry and animal husbandry.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic structural view of a distributed sewage treatment and deep purification tank according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a water distribution plate of a pre-reaction zone according to an embodiment of the present invention.
FIG. 3 is a schematic structural diagram of an outer wall of a pre-reaction zone provided in an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of an outer wall of a flow ionization micro-electrolysis region provided by an embodiment of the utility model.
Fig. 5 is a schematic structural view of an outer wall of a water outlet area provided by an embodiment of the utility model.
In the figure: 1. a water inlet pipe; 2. a pre-reaction zone; 3. a pre-reaction zone packing zone; 4. a water distribution plate of the pre-reaction zone; 5. a water collecting area of the pre-reaction area; 6. a pre-reaction zone water passing hole; 7. an aerator; 8. the main reaction zone flows away from the ball; 9. a primary reaction zone; 10. a flow-off micro-electrolysis zone; 11. water inlet holes of the flow-separation micro-electrolysis region; 12. a flow-off micro-electrolysis region filler region; 13. a water distribution plate in a flow dissociation micro-electrolysis region; 14. a water collection area of the flow separation micro-electrolysis area; 15. a water outlet area water passing hole; 16. a water outlet area; 17. a water outlet area and a water distribution area; 18. a water distribution plate in the water outlet area; 19 a water outlet area filling area; 20. a water outlet pipe; 21. an aeration pipe; 22. an air pump; 23. a control cabinet; 24. a sludge discharge pipe; 25. a first water passing hole; 26. a first sludge discharge hole; 27. a second water passing hole; 28. a second sludge discharge hole; 29. the first water outlet pipe is provided with a hole; 30. a third water passing hole; 31. a third row of mud holes; 32. and the second water outlet pipe is provided with a hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the utility model.
In order to solve the problems in the prior art, the utility model provides a distributed sewage treatment and deep purification tank, which is described in detail with reference to the accompanying drawings.
As shown in fig. 1, the distributed sewage treatment and deep purification tank provided in the embodiment of the present invention includes: the device comprises a water inlet pipe 1, a pre-reaction zone 2, a pre-reaction zone packing zone 3, a pre-reaction zone water distribution plate 4, a pre-reaction zone water collection zone 5, a pre-reaction zone water passing hole 6, an aerator 7, a main reaction zone flow separation ball 8, a main reaction zone 9, a flow separation micro-electrolysis zone 10, a flow separation micro-electrolysis zone water inlet hole 11, a flow separation micro-electrolysis zone packing zone 12, a flow separation micro-electrolysis zone water distribution plate 13, a flow separation micro-electrolysis zone water collection zone 14, a water outlet zone water passing hole 15, a water outlet zone 16, a water outlet zone water distribution zone 17, a water outlet zone water distribution plate 18, a water outlet zone packing zone 19, a water outlet pipe 20, an aeration pipe 21, an air pump 22, a control cabinet 23 and a sludge discharge pipe 24.
The flow-separation biochemical device consists of a pre-reaction zone 1 and a main reaction zone 2, and the deep purification device consists of a flow-separation micro-electrolysis zone 10 and a water outlet zone 16 which respectively adopt a structure with the same central axis.
The pre-reaction zone 2, the main reaction zone 9, the flow-separation micro-electrolysis zone 10 and the water outlet zone 16 are sequentially connected, the pre-reaction zone 2 is communicated with the main reaction zone 9 through a pre-reaction zone water passing hole 6, the main reaction zone 9 is communicated with the flow-separation micro-electrolysis zone 10 through a flow-separation micro-electrolysis zone water passing hole 11, and the flow-separation micro-electrolysis zone 10 is communicated with the water outlet zone 16 through a water outlet zone water passing hole 15.
The top of the pre-reaction zone 2 is provided with a water inlet pipe, and the treated effluent flows out from a water outlet pipe 20 at the upper part of the water outlet zone 16. The bottom of the main reaction zone 9 is provided with a sludge discharge pipe 24, and the residual sludge settled in the distributed sewage treatment and deep purification tank is discharged outside through the sludge discharge pipe 24 regularly.
The filler area 3 of the pre-reaction area is filled with flow separation balls, the diameter of each flow separation ball is 8-25cm, a ball shell is formed by injection molding of PE, the spherical surface is in a grid shape, the filler is filled in the ball shell, and the filler types include but are not limited to volcanic rock, limestone, zeolite, activated carbon, suspension balls, hollow balls and the like. The pre-reaction zone water collecting area 5 is provided with an annular aeration pipe and an aerator.
The main reaction zone 9 is filled with flow separation balls, the diameter of each flow separation ball is 8-25cm, a ball shell is formed by injection molding of Polyethylene (PE), the spherical surface is in a grid shape, and the ball shell is filled with fillers, wherein the fillers include, but are not limited to, volcanic rock, limestone, zeolite, activated carbon, suspension balls, hollow balls and the like. The bottom of the main reaction zone is provided with an annular aeration pipe and an aerator.
The flow separation micro-electrolysis region filling region 12 is filled with flow separation balls, the diameter of each flow separation ball is 3-8cm, a ball shell is formed by injection molding of PE, the spherical surface is in a grid shape, and filling materials, such as combined filling materials formed by mixing scrap iron, activated carbon and quartz sand, are filled in the ball shell.
The outlet region packing region 16 is filled with a packing material, the packing material is preferably mounted on the water distribution plate in a frame mode, and the types of the packing material include, but are not limited to, elastic packing, soft packing, semi-soft packing and the like.
As shown in FIG. 3, the outer wall of the water collecting area of the pre-reaction zone is provided with a first water passing hole 25, and the bottom of the water collecting area is provided with a first sludge discharging hole 26.
As shown in figure 4, the upper part of the outer wall of the flow-separation micro-electrolysis region is provided with a second water passing hole 27 and a first water outlet pipe mounting hole 29, and the bottom part is provided with a second sludge discharge hole 28.
As shown in fig. 5, the outer wall of the water outlet area is provided with a third water passing hole 30 and a second water outlet pipe mounting hole 32, and the bottom of the water outlet area is provided with a third sludge discharge hole 31.
The sewage (wastewater) of the septic tank or the sewage (wastewater) collecting tank is lifted by a sewage pump or flows automatically by gravity to sequentially enter a pre-reaction zone and a main reaction zone of a flow-separation biochemical device and a flow-separation micro-electrolysis zone and a water outlet zone of a deep purification device. The flow separation balls, the multi-medium fillers and the microorganisms (biomembranes and suspended sludge) in the pre-reaction zone and the main reaction zone have good inertial separation, gas dispersion and biodegradation effects, and can effectively remove suspended particles and organic matters (such as CODcr) in sewage (wastewater). In particular, the multi-medium filler (such as volcanic rock, limestone and polyhedral hollow spheres) has large specific surface area, rich microbial habitat, good performance of adjusting and buffering weak alkaline pH and slow release of calcium ions (Ca) 2+) The method has the characteristics that the volume load of organic pollutants is large, partial phosphate can be adsorbed and removed, and the microbial community structure with good synchronous nitrification-denitrification, heterotrophic nitrification and aerobic denitrification performances is provided; ammonia Nitrogen (NH) flowing away from the biochemical device when the Dissolved Oxygen (DO) of the effluent of the main reaction zone is more than or equal to 3.5mg/L3N) removal rate is more than or equal to 95.0%, and Total Nitrogen (TN) removal rate is more than or equal to 60%, so that good denitrification effect is shown; part of the effluent is refluxed to the pre-reaction zone, which can be used as the preference to improve the TN removal rate. The inventive microelectrolysis and flow separation technology of the flow separation microelectrolysis area is characterized in that cheap scrap iron and (columnar) granular activated carbon are filled in a flow separation ball, and the metal corrosion principle is utilized to generate Fe2+、Fe3+、FeOOH、Fe(OH)3Oxidizing the product, removing phosphate in the sewage (wastewater) by chemical precipitation or adsorption/ion exchange, and simultaneously removing partial residual organic matters by oxidative degradation or adsorption/coagulation; in addition, the flow separation ball and the filler thereof provide two flow channels with obvious difference of effective hydraulic radius, so that the inertia separation and hydraulic mixing/stripping effects are generated, and the problems of scrap iron hardening and blockage can be effectively avoided; if the aeration pipe and the aerator are arranged at the bottom of the water collecting area of the flow separation micro-electrolysis area for oxygenation, the metal corrosion reaction can be promoted, the oxidation products of the micro-electrolysis material are washed away, and the removal effect of phosphate and organic matters is improved. Finally, a water outlet zone The biofilm growing slowly in the filling area is used as the optimal material to intercept/adsorb fine suspended particles and partially remove residual organic matters and nitrogen-containing compounds in the effluent, so that the effluent quality meets the requirements of discharge or reuse.
Preferably, the water inlet of the distributed sewage treatment and deep purification tank is from a septic tank or a sewage (wastewater) collecting tank.
Preferably, when the ammonia nitrogen concentration of the inlet water of the distributed sewage treatment and deep purification tank is more than or equal to 100mg/L or the COD concentration is more than or equal to 1000mg/L, two-stage series tanks are adopted, wherein the 1 st stage cancels a deep treatment device and takes the deep treatment device as a part of a main reaction zone.
Preferably, the denitrification effect can be improved when the treated water in the effluent area of the distributed sewage treatment and deep purification tank flows back to the pre-reaction area, the effluent reflux ratio is 100-300%, and the pre-reaction area can be a pre-anoxic area without an aerator.
Preferably, the total hydraulic retention time of the effluent from the biochemical apparatus is not less than 12 hours, and preferably not less than 16 hours.
Preferably, the diameter of the flow-off sphere of the pre-reaction zone and the main reaction zone of the flow-off biochemical device is 5-20cm, the spherical shell is made of organic materials (such as polyethylene), and the spherical surface is in a grid shape. The multi-medium filler filled in the flow-off ball comprises, but is not limited to, volcanic rock, zeolite, ceramsite, limestone, (columnar) granular activated carbon, organic pall rings, ladder rings, polyhedral hollow balls and the like, and generally comprises three fillers of volcanic rock, limestone and polyhedral hollow balls.
Preferably, the area of the holes of the water distribution plate in the pre-reaction zone accounts for 5-25% of the area of the water distribution plate, the holes are uniformly distributed, the holes are generally circular, and the diameter of the flow-separation ball is preferably more than or equal to 1cm and not more than 2/3.
Preferably, the height of the water collecting zone of the pre-reaction zone is generally 15-30cm, the wall of the water collecting zone of the pre-reaction zone is provided with holes to communicate the pre-reaction zone with the main reaction zone, the area of the holes accounts for 3-20% of the area of the wall of the water collecting zone, and the shape of the holes comprises but is not limited to round, square, rectangle and the like.
Preferably, the height of the flow-off ball filled in the main reaction zone is lower than the height of the liquid level, and the difference between the height of the top of the flow-off ball layer and the height of the liquid level is approximately equal to the height of the water collecting zone of the pre-reaction zone, so that the aeration resistance of the main reaction zone is close to that of the pre-reaction zone.
Preferably, the aeration pipes at the bottom of the pre-reaction zone and the main reaction zone of the flow separation biochemical device are arranged in a ring shape, and the forms of the aerators arranged on the aeration pipes include but are not limited to disk aerators, plate aerators, pipe aerators, perforated pipes and the like; when the perforated pipe is adopted for aeration, the holes are opened facing the bottom of the tank, the included angle between the two holes is 60-120 ℃, and the holes are symmetrically arranged pairwise.
Preferably, water through holes are uniformly formed in the upper end of the outer wall of the packing area of the flow-separation micro-electrolysis area at the same height and are communicated with the flow-separation micro-electrolysis area and the main reaction area, the total area of the water through holes accounts for 1% -10% of the total area of the outer wall of the flow-separation micro-electrolysis area, the diameter of the water through holes is generally not less than 2cm, and the water through holes are positioned on the packing area.
Preferably, the deep purification device is used for separating a filler area in a micro-electrolysis area, a separating ball with the diameter of 3-8cm is filled in the filler area, a ball shell is made of organic materials (such as polyethylene), and a spherical surface is in a grid shape. The spherical shell is filled with iron chips and granular active carbon, iron: the mass ratio of carbon is (0.5-30): 1; before filling, the iron filings are preferably cleaned with surfactant (e.g. sodium dodecylbenzenesulfonate) and/or dilute alkali (e.g. NaOH) to remove grease, and cleaned with dilute acid (e.g. HCl) to remove rust.
Preferably, the water distribution plate in the flow dissociation micro-electrolysis region is uniformly provided with holes, the total area of the holes accounts for 5-25% of the area of the water distribution plate, and the holes are provided and include but are not limited to circular; when the material is circular, the diameter of the material is preferably more than or equal to 1cm and not more than 2/3.
Preferably, the height of the water collection area of the flow separation micro-electrolysis area is generally 15-30cm, and when an aeration pipe and an aerator are arranged, the micro-electrolysis reaction is promoted, so that the dephosphorization effect is improved; when the aeration pipe and the aerator are not arranged, the DO concentration of the upper liquid layer of the main reaction area is preferably more than or equal to 4.0mg/L, so that the subsequent micro-electrolysis reaction has more sufficient DO.
Preferably, the height of the water distribution area of the water outlet area is generally 15-30cm, water passing holes are uniformly formed in the outer wall of the water distribution area at the same height and are communicated with the water collection area of the flow-separation micro-electrolysis area and the water distribution area of the water outlet area; the total area of the water passing holes accounts for 3-20% of the area of the wall of the water distribution area of the water outlet area, and the shapes of the holes include, but are not limited to, round, square, rectangular and the like; the diameter of the water holes is preferably not less than 2cm when the holes are circular.
Preferably, the water distribution plate of the water outlet area is uniformly provided with holes, the total area of the holes accounts for 5-25% of the area of the water distribution plate, and the shape of the holes includes but is not limited to a round shape; when the holes are circular, the diameter is better to be more than 1cm, and the number is not less than 3; the water distribution plate and the water distribution plate in the flow-separation micro-electrolysis region are preferably processed by the same plate.
Preferably, the filler in the filler zone of the water outlet zone is preferably arranged on the water distribution plate in a frame mode, and the filler types include but are not limited to elastic filler, soft filler, semi-soft filler and the like.
Preferably, the height of the clear water layer of the water outlet area is more than or equal to 10cm, and a water outlet pipe is arranged, wherein the pipeline specification is more than or equal to DN 32.
Preferably, the control system of the distributed sewage treatment and deep purification tank adopts but is not limited to a touch screen programmable controller; the start/stop of the water inlet pump includes but is not limited to providing control signals by adopting a ball float valve, a liquid level relay and the like, and the air pump (air blower) and the reflux pump can run intermittently.
Preferably, the tank body of the distributed sewage treatment and deep purification tank is made of organic materials (such as polyethylene), so that the material and processing cost can be reduced; wherein, the pre-reaction zone and the cylinder of the deep purification device and the internal structure thereof include but are not limited to organic materials (such as polyethylene, polyvinyl chloride and the like); the tank body is preferably processed by a mold, and the pre-reaction zone, the cylinder body of the deep purification device and the internal structure of the cylinder body include but are not limited to mold processing.
The working principle of the utility model is as follows: the distributed sewage treatment and deep purification tank adopts two groups of concentric shaft structures, and consists of a pre-reaction zone of a flow-separation biochemical unit, a main reaction zone, a flow-separation micro-electrolysis zone of a deep purification unit and a water outlet zone, wherein the effective volume ratio is (2-6): (8-24): (1-3): (1-3), the whole flow state of the reaction tank presents a good pushing flow state, which is beneficial to improving the quality of effluent water; the pre-reaction zone and the main reaction zone of the flow-off biochemical unit form a baffling variable speed reactor, wherein the pre-reaction zone is a high-load zone, and the main reactor is a low-load zone, so that the stable and efficient pollutant removal effect can be achieved, such as COD and SS; the pre-reaction zone and the main reaction zone are both filled with flow separation balls, and composite fillers of different types such as volcanic rock, limestone, polyhedral hollow spheres and the like are filled in the flow separation balls to form a microbial habitat and community structure with good synchronous nitrification and denitrification functions, so that most of phosphorus-containing compounds are converted into phosphate, and part of the phosphate is removed by adsorption/chemical precipitation. A flow-separation micro-electrolysis region of a deep purification unit innovatively integrates micro-electrolysis and flow-separation technologies, and cheap scrap iron and (columnar) granular activated carbon are used as electrode materials to form a plurality of fine primary batteries and inertia separation micro-regions, so that COD (chemical oxygen demand) can be removed through oxidation/reduction, and phosphate in water can be effectively removed; the filling area of the water outlet area has deep purification functions, such as SS, COD and total phosphorus, so that the water quality of the outlet water meets the requirements of discharge or reuse; when the ammonia nitrogen concentration of the inlet water is more than or equal to 100mg/L or the COD concentration is more than or equal to 1000mg/L, two-stage series tanks are adopted, and in order to improve the TN removal effect, the treated water of the water outlet zone can partially flow back to the pre-reaction zone.
The utility model has the functions of high-efficiency composite biodegradation/conversion, flow separation, chemical adsorption/precipitation, electrochemical oxidation/reduction, interception/filtration and the like in a simple tank body, forms the characteristics of a plug flow type reactor on the aspect of macroscopic hydraulics, and forms micro reaction conditions suitable for biological sewage treatment and electrochemical advanced treatment in different areas of the tank body. The distributed sewage treatment and deep purification tank has the advantages of compact structure, high treatment efficiency, stable operation, simple maintenance and the like, can realize unattended operation, is suitable for distributed domestic sewage treatment and deep purification in rural and remote areas, and can also be used as an important unit for industrial wastewater treatment of a workshop type factory.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the utility model, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. The utility model provides a distributed sewage treatment and deep purification jar which characterized in that, distributed sewage treatment and deep purification jar is provided with:
a tank body;
the flow separation biochemical device and the deep purification device are arranged in the tank body, the flow separation biochemical device is provided with a pre-reaction zone and a main reaction zone which are coaxially arranged, the pre-reaction zone is sleeved on the inner side of the main reaction zone, the deep purification device is provided with a flow separation micro-electrolysis zone and a water outlet zone which are coaxially arranged, and the water outlet zone is sleeved on the inner side of the flow separation micro-electrolysis zone;
the pre-reaction zone, the main reaction zone, the flow-separation micro-electrolysis zone and the water outlet zone are sequentially connected, the pre-reaction zone is communicated with the main reaction zone through a pre-reaction zone water passing hole, the main reaction zone is communicated with the flow-separation micro-electrolysis zone through a flow-separation micro-electrolysis zone water passing hole, and the flow-separation micro-electrolysis zone is communicated with the water outlet zone through a water outlet zone water passing hole;
The upper part of the pre-reaction zone packing zone is communicated with a water inlet pipe, the lower end of the side surface of the tank body is provided with a sludge discharge pipe communicated with the main reaction zone, and the upper end of the other side of the tank body is provided with a water outlet pipe communicated with a water outlet zone.
2. The decentralized wastewater treatment and deep purification tank according to claim 1, wherein the bottom of each of the pre-reaction zone and the main reaction zone is provided with an annular aeration pipe and an aerator communicated with the annular aeration pipe.
3. The decentralized wastewater treatment and deep purification tank according to claim 1, wherein the pre-reaction zone is internally provided with a pre-reaction zone packing zone, a pre-reaction zone water distribution plate and a pre-reaction zone water collection zone from top to bottom;
and the filler area of the pre-reaction area and the main reaction area are respectively filled with flow separation balls, the diameter of each flow separation ball is 8-25cm, the spherical surface of each flow separation ball is in a grid shape, and the filler is filled in a ball shell.
4. The decentralized wastewater treatment and deep purification tank according to claim 1, wherein a flow-off micro-electrolysis region filler region, a flow-off micro-electrolysis region water distribution plate and a flow-off micro-electrolysis region water collection region are sequentially arranged in the flow-off micro-electrolysis region from top to bottom;
the flow-separation micro-electrolysis area filler area is filled with flow-separation micro-electrolysis area flow-separation balls, the diameter of each flow-separation micro-electrolysis area flow-separation ball is 3-8cm, the spherical surface is in a grid shape, and the spherical shell is filled with filler.
5. The distributed sewage treatment and deep purification tank as claimed in claim 1, wherein the water outlet zone is provided with a water outlet zone water distribution zone, a water outlet zone water distribution plate, a water outlet zone filler zone and a clean water zone from bottom to top;
and the water outlet area is filled with filler which is arranged on the water distribution plate in a frame mode.
6. The decentralized wastewater treatment and deep purification tank of claim 1, wherein the outer wall of the water collection area of the pre-reaction area is provided with a first water passing hole, and the bottom of the water collection area is provided with a first sludge discharge hole.
7. The decentralized wastewater treatment and deep purification tank of claim 1, wherein the outer wall of the flow-separation micro-electrolysis region is provided with a second water passing hole and a first water outlet pipe through-wall hole at the upper part, and is provided with a second sludge discharge hole at the bottom.
8. The decentralized wastewater treatment and deep purification tank according to claim 1, wherein the outer wall of the water outlet area is provided with a third water through hole and a second water outlet pipe through-wall hole, and the bottom of the water outlet area is provided with a third sludge discharge hole.
9. The decentralized wastewater treatment and deep purification tank according to claim 1, wherein an air pump and a control cabinet are respectively fixed on two sides of the upper end of the tank body, and the air pump is connected with the aeration pipe.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122177982 | 2021-09-09 | ||
| CN202122177982X | 2021-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216837538U true CN216837538U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122915688.4U Active CN216837538U (en) | 2021-09-09 | 2021-11-25 | Distributed sewage treatment and deep purification jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216837538U (en) |
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2021
- 2021-11-25 CN CN202122915688.4U patent/CN216837538U/en active Active
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