CN217809026U - Novel sewage purification treatment device - Google Patents

Abstract

The utility model provides a novel sewage purification treatment device, which comprises a sewage adjusting tank, an adsorption and degradation treatment device, a pH value neutralization device, a fine filtering device and a sludge precipitation device, which are connected with the device in sequence through a water pump and a pipeline; wherein, the upper part of the adsorption degradation treatment device is connected with a degradation agent container, and the upper part of the pH value neutralization device is connected with a neutralizer container; the device is connected with a sewage pipeline through a pipeline and a valve which are arranged below the device, and is connected with the sludge precipitation device through the sewage pipeline, and a water return pipeline is arranged between the sludge precipitation device and the adsorption degradation treatment device. The utility model discloses simple structure, processing cycle is short, convenient operation, and manufacturing cost and running cost are low, and the quality of water after the processing can reach town sewage pollutant emission standard one-level A standard or be higher.

Description

Novel sewage purification treatment device

Technical Field

The utility model relates to a sewage treatment technical field, in particular to novel sewage purification treatment device.

Background

The conventional sewage treatment equipment for the urban sewage treatment plant comprises conventional biochemical treatment equipment and double-membrane sewage filtration equipment. The biochemical method treatment equipment comprises a sewage blocking grid, wherein large solid pollutants are firstly filtered, small solid pollutants are filtered by a fine grid, a sewage adjusting tank is used for adjusting the balance of sewage flow, an ammonia nitrogen stripping tank is used for stripping ammonia gas and nitrogen gas, a biochemical reaction tank is used for degrading and removing the pollutants through mass culture and propagation of microorganisms, an ultraviolet disinfection tank is used for killing toxic substances, a sludge sedimentation tank is used for settling sludge, a sludge filter pressing and concentration workshop is used for removing water in the sludge or drying the sludge, and a refuse landfill site is used for delivering the sludge to a refuse landfill for landfill. The biochemical reaction tank of the biochemical treatment equipment needs to decompose and remove pollutants such as organic matters in sewage by using biochemical action in a microorganism body and metabolism of a large number of microorganisms, so that a large amount of sludge containing the organic matters is generated, and the degradation of the organic pollutants is poor. Finally, harmful substances such as garbage percolate and the like can be generated when the garbage is sent to a garbage landfill, and then the problem of secondary pollution is caused. The biochemical treatment equipment needs to build a plurality of trash rack, sewage adjusting tank, biochemical reaction tank, ultraviolet disinfection tank, sludge sedimentation tank, sludge filter-pressing concentration workshop or airing field fixed on the ground, thus occupying a large amount of land and space and needing a large amount of connecting parts of ground and underground pipelines. Moreover, biochemical processes are long in treatment cycle, and usually require more than 20 hours.

The existing sewage treatment also adopts a double-membrane method, namely, an ultrafiltration device and a reverse osmosis device are adopted for water treatment. The ultrafiltration device uses organic and inorganic filter membranes to intercept substances such as microorganisms, sludge, organic matters and the like in water for sewage purification treatment. After being filtered by the ultrafiltration device, the sewage needs to be filtered by more than two multi-medium filters, and then is finely filtered by reverse osmosis devices such as an activated carbon filter and the like. Because the reverse osmosis device needs to operate under high pressure, a high-pressure pump and a high-pressure pipeline are also needed to pressurize, and low-concentration water is converted into high-concentration water to isolate impurities in sewage. The two-membrane method often causes concentration polarization during membrane separation, and thus generates about 20% of concentrated water which is difficult to treat. Meanwhile, the device has a limited removal rate of substances such as total nitrogen, total phosphorus and the like, and cannot reduce the indexes of the total nitrogen and the total phosphorus. The investment and running costs of the ultrafiltration device, the multi-media filter, the high-pressure pump, the reverse osmosis device and other devices are high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the problems that the traditional biochemical method needs to cultivate and breed microorganisms by building a biochemical pool to carry out sewage treatment, the treated sludge contains organic substances, the treatment period is long, and the like; and in order to overcome the problems that a double-membrane ultrafiltration reverse osmosis device needs high cost investment, the removal rate of substances such as total nitrogen, total phosphorus and the like is limited and the like, a novel sewage purification treatment device is provided. The utility model discloses a novel sewage purification treatment device need not cultivate through building biochemical pond and breed the microorganism and carry out sewage treatment, and processing time is very short moreover, can fall the pollutant index in the sewage very fast. The utility model discloses a purification treatment equipment compact structure, area is little and can remove at any time. The treated sludge can be recycled in time, so that a large airing field is not required to be occupied. Therefore, the manufacturing cost and the operation cost of the utility model are both very low.

The technical proposal of the utility model comprises a sewage adjusting tank, which is characterized in that the sewage adjusting tank comprises an adsorption degradation treatment device, a pH value neutralization device, a fine filtration device and a sludge precipitation device; the sewage adjusting tank is connected with the adsorption and degradation treatment device through a pressure water pump and a pipeline which are arranged in the adjusting tank, and the pH value neutralizing device is connected with the adsorption and degradation treatment device and the fine filtering device through a pipeline; wherein, the upper part of the adsorption degradation treatment device is connected with a degradation agent container through a pipeline and a valve, and the upper part of the pH value neutralization device is connected with a neutralizer container through a pipeline and a valve;

the adsorption and degradation treatment device, the pH value neutralization device and the fine filtering device are connected with a sewage pipeline through pipelines and valves arranged below the adsorption and degradation treatment device respectively, the sewage pipeline is connected with the sludge precipitation device, and a water return pipeline is further arranged between the sludge precipitation device and the adsorption and degradation treatment device.

The filtering layer is arranged above the adsorption and degradation treatment device, and the water outlet of the adsorption and degradation treatment device is arranged above the filtering layer; the pipeline outlet of the sewage adjusting tank is arranged at the bottom of the adsorption and degradation treatment device; the pipeline outlet of the degradation agent container is arranged at the bottom of the adsorption and degradation treatment device, and the pipeline outlet of the sewage adjusting tank and the pipeline outlet of the adsorption and degradation treatment device are arranged opposite to each other at the bottom outlet of the adsorption and degradation treatment device; and a stirring device is arranged in the adsorption degradation treatment device. The adsorption and degradation treatment device is also provided with two splash guards which are opposite in the upper and lower directions and are inclined by 35-45 degrees, the splash guards are welded on the inner wall of the adsorption and degradation treatment device in an inclined manner along the diameter circumferential direction of the splash guards in the adsorption and degradation treatment device, and a water outlet with the diameter of 100-300 mm is reserved at the lowest position; the two fenders are arranged above the outlets of the two pipelines.

The filtering layer is arranged above the pH value neutralizing device, and the water outlet of the pH value neutralizing device is arranged above the filtering layer; the pipeline outlet of the adsorption degradation treatment device is arranged at the bottom of the pH value neutralization device; the pipeline outlet of the pH value neutralization device is arranged at the bottom in the pH value neutralization device; the pipeline outlet of the adsorption degradation treatment device and the pipeline outlet of the neutralizer container are arranged opposite to the outlet at the bottom of the pH value neutralization device; and a stirring device is arranged in the pH value neutralizing device.

The filtering layer is arranged above the fine filtering device of the utility model, and the water outlet of the fine filtering device is arranged above the filtering layer; the fine filtering device is also provided with two upper and lower splash guards which correspond to each other in different directions and are inclined by 35-45 degrees, the splash guards are welded on the inner wall of the fine filtering device in an inclined manner along the diameter circumferential direction of the splash guards in the fine filtering device, and a water outlet of 100-300 mm is reserved at the lowest position; the two fenders are arranged above the outlets of the two pipelines.

Furthermore, the filter layers in the adsorption and degradation treatment device, the pH value neutralization device and the fine filtering device of the utility model are provided with porous support plates, and the porous support plates are paved with a plurality of layers of filter cloth and a plurality of layers of porous adsorption materials which are mutually overlapped from top to bottom; the filter layers in the adsorption degradation treatment device and the pH value neutralization device are provided with 3-5 layers of filter materials, and the fine filter device is provided with 6-8 layers of filter materials; the total thickness of the filter layer may be determined according to the sizes and capacities of the adsorption degradation treatment means, the pH neutralization means, and the fine filtration means. The utility model discloses a sludge settling device divide into sludge settling tank and water filtering ponds, and it has mud to deposit in the sludge settling tank, be provided with water pump and wet return in the water filtering ponds.

Furthermore, in the sewage purification treatment apparatus of the present invention, an automatic control device and an automatic sensing and measuring instrument are provided, the automatic sensing and measuring instrument automatically measures and automatically transmits the measured data in time, and monitors the change of the data in the sewage treatment process in real time, and the automatic sensing and measuring instrument and the automatic control device perform all-directional automatic monitoring and automatic operation control of the apparatus; and the addition amount of the degradation agent and the pH value are adjusted in time according to the change of the monitoring data.

Agitating unit be adsorb degradation processing apparatus with below in the pH value neutralization apparatus is provided with the dive mixer and carries out intensive mixing and mix to sewage. A pressure water pump in the sewage regulating tank adopts a sludge submersible pump; and a backwater water pump in the sludge precipitation device adopts a submersible pressure pump.

The utility model discloses a novel sewage purification treatment facility adopts and adsorbs degradation treatment device to adsorb the pollutant in to sewage, and rethread pH value neutralization apparatus carries out neutralization to the pH value of sewage, carries out meticulous filtration and deposits the getting rid of remaining impurity through meticulous filter equipment and sludge precipitation device at last, falls the pollutant that exceeds standard in the sewage, and the quality of water after the processing can reach cities and towns sewage pollutant emission standard one-level A standard and go out water or higher. The utility model discloses simple structure, convenient operation, processing cycle is very short moreover, and manufacturing cost and running cost are all very low.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the apparatus of the present invention;

FIG. 2 is a schematic view of the internal structure of the adsorption and degradation device of the present invention;

FIG. 3 is a schematic view of the internal structure of the neutralization device of the present invention;

FIG. 4 is a schematic view showing the internal structure of the fine filtering apparatus of the present invention;

FIG. 5 is a schematic view of the structure of the mudguard according to the present invention in the A direction;

fig. 6 is an enlarged schematic view of the filter layer of the present invention.

Wherein the sequence numbers indicate: 1-grating, 2-sewage adjusting tank, 3-sewage adjusting tank water pump, 4-adjusting tank drain pipe, 5-adsorption degradation treatment device, 5-1-lower mudguard, 5-2-upper mudguard, 6-degradant container pipeline, 7-degradant container, 8-adsorption degradation treatment device filter layer, 9-adsorption degradation treatment device water outlet pipe, 10-pH value neutralization device, 11-neutralizer container, 12-neutralizer container pipeline, 13-pH value neutralization device water outlet, 14-pH value neutralization device filter layer, 15-fine filter device, 15-1-lower mudguard, 15-2-upper mudguard, 16-fine filter device filter layer, 17-sludge precipitation device, 18-water filtering tank water pump and 19-filter bag.

Detailed Description

The following are exemplary embodiments of the present invention and detailed descriptions of specific embodiments of the present invention. The dimensions and area of structures in the drawings may be exaggerated or exaggerated for clarity of explanation or some of the component structures may not be shown in the clear from the description, and these preferred embodiments are not intended to limit the design of further improvements of the present invention.

In order to solve the problem of degrading and removing overproof pollutants in sewage, the inventor discovers that the existing sewage treatment equipment and the existing sewage treatment method are complex and have a long treatment period through analysis and research on the existing sewage treatment equipment of a sewage plant. The biochemical method adopted by most sewage treatment plants needs to degrade and remove pollutants in sewage by building a biochemical reaction tank, putting medicaments into the biochemical reaction tank and culturing and breeding a large amount of microorganisms. And microorganisms in the biochemical reaction tank are metabolized quickly, so that the microorganism corpses with organic pollutants are deposited in the biochemical reaction tank as sludge, not only are various organic pollutants in the sewage not fully degraded and removed, but also a large amount of organic substances which cannot be degraded are contained in the treated and deposited sludge. Therefore, these bacteria-containing sludges can only be transported to a landfill site and buried. Moreover, the time for treating sewage by a biochemical method is long, and usually more than 20 hours are needed in one period. The double-membrane sewage treatment equipment has low utilization rate due to high investment cost of the equipment and limited removal rate of overproof pollutants such as total nitrogen, total phosphorus and the like.

The utility model designs a sewage purification treatment device of brand-new structural style, need not cultivate the pollutant that the microorganism handled in the sewage through building biochemical reaction pond completely, but can reduce each item index of pollutant by a wide margin, further promote sewage treatment quality of water. Through the utility model discloses quality of water after sewage purification treatment device handles, the Chemical Oxygen Demand (COD) in the sewage, pollutant content index greatly reduced such as biochemical oxygen demand (BOD 5), total nitrogen, total phosphorus, it reaches town sewage discharge standard to go out water, can reach surface water environment quality standard to can discharge in the surface water environment or recycle. The utility model discloses the cycle of handling sewage is very short, only needs 1 ~ 3 hours from beginning to degrade to accomplishing to deposit the water, and manufacturing cost is very low.

Referring to fig. 1 and 2, the utility model discloses a sewage purification treatment device is provided with the sewage equalizing basin, is provided with the grid 1 that filters bold solid pollutant at the front end of sewage equalizing basin, and the rear end is sewage equalizing basin 2, and sewage equalizing basin 2 carries out the equilibrium to the size that town sewage got into the equalizing basin flow. The sewage regulating tank 2 is internally provided with a water pump 3 and a pipeline 4 connected with an adsorption and degradation treatment device 5, and the water pump 3 and the pipeline 4 convey sewage in the sewage regulating tank to the bottom of the adsorption and degradation treatment device 5 and are connected with the bottom. A degradation agent container 7 is arranged above the adsorption degradation treatment device 5, and degradation agents are filled in the degradation agent container 7; the pipeline 6 and the valve below the degradation agent container 7 are connected with the adsorption and degradation treatment device 5, and the degradation agent is sent to the bottom of the adsorption and degradation treatment device 5 through the pipeline 6. The outlet of the pipeline 6 of the degradation agent container 7 is opposite to the outlet of the pipeline 4 of the sewage adjusting tank 2 at the bottom of the adsorption and degradation treatment device 5, namely the outlet is arranged opposite to the outlet. In the sewage treatment process, a water pump 3 in a sewage adjusting tank 2 pumps the sewage in the adjusting tank into an adsorption and degradation treatment device 5 through a pipeline 4, and a degradation agent container 7 arranged above the adsorption and degradation treatment device 5 conveys the degradation agent in the adsorption and degradation treatment device 5 through gravity. At this time, the outlets of the two pipelines of the pipeline 4 of the regulating tank 2 and the pipeline 6 of the degradation agent container 7 are blown to each other at the bottom of the adsorption and degradation treatment device 5, and simultaneously, the submersible mixer arranged in the adsorption and degradation treatment device 5 stirs and mixes the sewage and the degradation agent, so that the sewage and the degradation agent in the adsorption and degradation treatment device 5 are fully stirred and mixed. The degrading agent fully adsorbs and degrades the pollutants in the sewage for 5 to 15 minutes, and directly and greatly reduces the content of the overproof pollutants in the sewage through filtering, precipitation and removal. The utility model discloses according to sewage concentration and pollutant content's difference, adopt porous non-metallic mineral substance adsorption material to constitute the degradation agent, can carry out powerful absorption and degradation to the multiple pollutant in the sewage, make organic pollutant or other pollutants in the sewage all adsorb basically in porous adsorption material, make the pollutant obtain basically clear away and reach town sewage discharge standard and go out water up to standard.

Referring to fig. 1 and 3, the filtered and precipitated effluent after being treated by the adsorption and degradation treatment device 5 passes through a filter layer 8 above the adsorption and degradation treatment device 5 from bottom to top under the pressure of a sludge submersible pump 3, and enters the bottom of a pH neutralization device 10 connected with the filter layer 8 through a water outlet pipeline 9 arranged above the filter layer 8; at the same time, the valve of the neutralizer container 11 connected with the pH value neutralization device 10 is opened, so that the neutralizer enters the pH value neutralization device 10 through the pipeline 12, the outlet of the pipeline 9 of the adsorption degradation treatment device 5 and the outlet of the pipeline 12 of the neutralizer container 11 are arranged in a way that the outlets are opposite to each other, therefore, the outlets of the two pipelines are blown to each other in the pH value neutralization device 10, and simultaneously, the submersible stirrer arranged in the pH value neutralization device 10 stirs and mixes the sewage and the neutralizer, so that the sewage and the neutralizer in the pH value neutralization device 10 are fully stirred and mixed. After fully stirring and mixing for 5-15 minutes, the pH value reaches a standard value of 6-9.

The utility model discloses an among the sewage purification treatment device, be provided with automatic control device and automatic sensing measuring instrument. The automatic sensing measuring instrument automatically measures and automatically transmits measured data in time, immediately monitors and measures the change of data in the sewage treatment process, carries out all-round automatic monitoring and automatic operation control of equipment through the automatic sensing measuring instrument and the automatic control device, and timely adjusts the addition amount and the pH value of the degradation agent according to the change of the monitored data.

Referring to fig. 1 and 4, the effluent water after being filtered and precipitated by the adsorption degradation treatment device 5 and the pH neutralization device 10 is filtered by a filter layer 14 above the pH neutralization device 10 from bottom to top under the continuous pressure of the sludge submersible pump 3, and then enters the bottom of a fine filtering device 15 connected with the effluent water pipe 13 to be finely filtered by residual impurities. After being filtered by the filter layer 16 above the fine filter device 15, the water is discharged through a water outlet above the filter layer 16 after reaching the standard.

Referring to the attached drawing 1, the utility model discloses a deposit sediment that adsorbs degradation processing apparatus 5, pH value neutralization apparatus 10 and fine filtration device 15 after degrading and filtering sewage deposits in the bottom of its device, and the below of every device all is provided with mud discharge valve and pipeline and links to each other with sewage pipes, and rethread sewage pipes is connected with sludge settling device 17, and the mud of every device bottom passes through sewage pipes and discharges mud in the sediment device 17. The sludge settling device 17 is provided with a sludge settling tank and a water filtering tank, a submersible pressure pump water pump 18 and a water return pipe are arranged in the water filtering tank, filtered water is pumped back to the adsorption degradation treatment device 5 through the submersible pressure pump water pump 18 and the water return pipe in the water filtering tank for recycling, and sludge in the sludge settling device 17 is transported by a filter bag 19 for recycling.

Because the utility model discloses not carry out sewage treatment through cultivateing the microorganism in biochemical reaction pond, but the utility model discloses an adsorption degradation processing apparatus 5 has adopted the non-metallic mineral degradation agent that has very strong adsorption degradation ability to carry out the adsorption degradation processing of sewage. Therefore, the sludge precipitated after the sewage treatment is practically non-metal mineral adsorption saturates. The non-metal mineral substance adsorption saturated matter adsorbs most of organic substances such as nitrogen, phosphorus, potassium and the like in the sewage, and the organic substances are needed by agricultural fertilizers and can be recycled for manufacturing the agricultural fertilizers such as compost and the like.

Referring to fig. 2 to 5, the present invention further comprises a 5-1 lower baffle and a 5-2 upper baffle, which are disposed in the adsorption degradation treatment device 5 and are inclined at 35 to 45 degrees in two different directions, and a 15-1 lower baffle and a 15-2 upper baffle, which are disposed in the fine filtering device 15 and are inclined at 35 to 45 degrees in two different directions. Two mudguards arranged in the two devices are welded on the inner walls of the adsorption and degradation treatment device 5 and the fine filtering device 15 along the diameter circumferential direction in the respective devices in an inclined way, and a water outlet with the diameter of about 100 mm-300 mm is reserved at the lowest inclined position, as shown in figure 5. The mudguards of the two devices are welded below 1/2 of the height of each device and above the two opposite pipeline outlets. In the process of sewage adsorption degradation and filtration, under the continuous pressure of the water pump 3 and the action of the opposite blowing of the outlets of the two pipelines and the stirrer, water in the adsorption degradation and filtration flows to the upper part of the device under the state of full stirring and mixing, solid pollutants and impurities flowing in the water are blocked by collision resistance in different directions when passing through the mud guards, sink into sludge settling areas below the respective devices and are discharged into the sludge settling device 17 through a sewage discharge pipeline. And the water flowing upwards under the pressure of the water pump is filtered by the filter layer and discharged from the water outlet of each device. The utility model discloses a relative inclined's fender comes to block each other mud about the different positions setting in each device, makes the quality of water after handling obtain very big promotion.

Referring to fig. 1-6, the filter layers of the adsorption and degradation treatment device 5, the pH neutralization device 10 and the fine filtration device 15 of the present invention are provided with a support plate with a plurality of pores, and a plurality of layers of filter cloth and a plurality of layers of porous adsorption materials are laid on the support plate and stacked up and down to form the filter. The porous adsorption material is a non-metal mineral adsorption material. The filter layers in the adsorption degradation treatment device 5 and the pH value neutralization device 11 are set to be 3-5 layers of filter materials so as to filter and precipitate slightly larger solid pollutants at the bottom of the device. And 6-8 layers of filter material are arranged in the fine filtering device to filter and precipitate the finer substances and flocculent substances to the bottom of the device.

Example 1

This embodiment does the utility model discloses a novel sewage purification treatment device is at the effect after the pilot scale test is installed in certain town sewage treatment plant in Guangxi. This former biochemical process treatment facility and the flow of adopting of sewage treatment plant, the utility model discloses a sewage purification treatment facility inserts this sewage treatment plant's equalizing basin 2, and sludge submersible pump 3 through in the sewage equalizing basin is beaten sewage the utility model discloses an adsorption degradation processing apparatus 5, pH value neutralization apparatus 10 and meticulous filter equipment 15 in carry out the purification treatment of sewage. The pilot test of the sewage purification treatment requires that the sewage purification treatment reaches the first-class A discharge standard of urban sewage pollutant discharge standard. The detection items are as follows:

sewage inlet: chemical Oxygen Demand (COD): 72.7/mg/L, biochemical Oxygen Demand (BOD) ₅ ): 26mg/L, suspension: 158 (SS), total Nitrogen: 15.3mg/L, total phosphorus: 15mg/L, pH: 7.50; a total of 6 entries.

Adopt the utility model discloses a sewage purification treatment device handles the domestic sewage that this factory collected. The utility model discloses an adsorb degradation processing apparatus, pH value neutralization apparatus and meticulous filter equipment are 50m ³ The volume of the tank body can be filled with 50 tons of sewage. The collected sewage is purified by adopting a degrading agent consisting of nonmetal mineral adsorbing materials such as volcanic rock, zeolite, medical stone, calcium carbonate and the like:

when the sewage is driven into the adsorption and degradation treatment device 5 of the embodiment by the sludge submersible pump 3 and the pipeline 4 in the sewage adjusting tank 2, the degradation agent is fed into the device through the gravity through the degradation agent container 7 above the adsorption and degradation treatment device 5, two water outlets of the sewage adjusting tank 2 and the degradation agent container 7 blow against each other when water is discharged, and a sewage stirrer is adopted for stirring, so that the sewage and the degradation agent in the adsorption and degradation treatment device 5 are fully stirred and mixed, pollutants in the sewage are adsorbed, degraded and removed, and meanwhile, the sewage flows to the filter layer 8 above the adsorption and degradation treatment device 5 under the pressure of the water pump 3. The solid pollutants and impurities degraded in the flowing process are blocked by collision resistance in different directions when passing through the mud guards 5-1 and 5-2 and sink into a sludge settling area below the adsorption and degradation treatment device 5. The water flowing upwards under the pressure of the water pump 3 is filtered by the filter layer 8 from bottom to top and is discharged from a water outlet above the adsorption and degradation treatment device 5. Most of the pollutants in the effluent water at the moment are adsorbed, degraded and removed. The relatively clean effluent exits under the pressure of the water pump and enters the bottom of the pH neutralization apparatus 10. The whole process of adsorption degradation and filtration only needs 30 minutes.

When effluent discharged from a water outlet above the adsorption and degradation treatment device 5 enters the bottom of the pH value neutralization device 10 through a pipeline 9, a valve of a neutralizer container 11 above the pH value neutralization device 10 is opened, and neutralizer is fed into the pH value neutralization device 10, the two water outlets are blown oppositely when the effluent is discharged, and a sewage stirrer is adopted for stirring, so that the sewage and the neutralizer in the pH value neutralization device 10 are fully stirred and mixed. The adding amount of the dilute sulfuric acid as the neutralizing agent is adjusted at any time according to the real-time monitoring data of the pH value automatic monitoring instrument, so that the pH value of the water in the pH value neutralizing device 10 is kept at about 7. At the same time, the water flows from bottom to top under the pressure of the water pump 3 to the filtering layer 14 above the pH value neutralization device 10, and is discharged from a water outlet above the filtering layer 14 through the filtration of the filtering layer. The discharged water at this time has basically met the discharge standard of town sewage because most pollutants are removed and the pH value is kept at about 7. The pH neutralization takes only 15 minutes for the whole process.

The water discharged from the pH neutralization device 10 is introduced into a fine filtration device 15 for fine filtration. The filtering layer 16 in the fine filtering device 15 is formed by vertically overlapping 7 layers of filtering cloth and a porous non-metallic mineral adsorbing material, and the micro impurities or floccules in water are completely filtered by the strong blocking in different directions of two opposite mud guards in different directions in the fine filtering device 15, so that the treated water quality is further improved, and the improved water quality reaches the first-level discharge standard A of urban sewage or higher. The fine filtration process takes only 30 minutes.

The sludge precipitated in the treatment process of the adsorption degradation treatment device 5, the pH value neutralization device 10 and the fine filtering device 15 is discharged into a sewage discharge pipeline below through pipelines and enters a sludge precipitation device 17, the sludge is precipitated and filtered, the precipitated adsorption saturates are shipped by a filter bag 19, and when the adsorption saturates are filtered to be dry to contain about 60 moisture, the adsorption saturates can be directly used for preparing compost. And the filtered water is pumped back to the adsorption and degradation treatment device 5 for reuse through a submersible pressure pump 18 in a water return pipe. The precipitation filtration process required only 30 minutes.

In the embodiment, after the pilot test treatment is finished, the discharged water is discharged from the sewage discharge outlet, and the third party detects that the discharged water reaches the first-class A standard of the town sewage pollutant discharge standard. The detection results are shown in the following table 1:

TABLE 1 results of the wastewater tests (four batches of tests in this example)

From the detection results, the indexes of pollutants contained in the sewage treated by the novel sewage purification treatment equipment of the embodiment are reduced by 60-70% of Chemical Oxygen Demand (COD), more than 60% of biochemical oxygen demand (BOD 5) and 30-50% of total nitrogen (mg/L) relative to the original data of the sewage inlet sample; the total phosphorus (mg/L) is reduced by more than 95%, and the suspended matters (mg/L) are reduced by about 90%. The content of total nitrogen, total phosphorus and suspended solid in the sewage is greatly reduced, the index of the one-level A discharge standard of the urban sewage pollutants is completely met, and the purpose of the utility model is realized. The utility model can be widely used for the purification treatment of urban domestic sewage and can also be used for the purification treatment of industrial sewage.

The above is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications can be made without departing from the design principle of the present invention, and these modifications should be considered as the protection scope of the present invention.

Claims (10)

1. A novel sewage purification treatment device comprises a sewage adjusting tank and is characterized by comprising an adsorption degradation treatment device, a pH value neutralization device, a fine filtering device and a sludge precipitation device; the sewage adjusting tank is connected with the adsorption and degradation treatment device through a pressure water pump and a pipeline which are arranged in the adjusting tank, and the pH value neutralizing device is connected with the adsorption and degradation treatment device and the fine filtering device through a pipeline; wherein, the upper part of the adsorption degradation treatment device is connected with a degradation agent container through a pipeline and a valve, and the upper part of the pH value neutralization device is connected with a neutralizer container through a pipeline and a valve;

the adsorption and degradation treatment device, the pH value neutralization device and the fine filtering device are connected with a sewage pipeline through pipelines and valves arranged below the adsorption and degradation treatment device respectively, and are connected with the sludge precipitation device through the sewage pipeline, and a water return pipeline is also arranged between the sludge precipitation device and the adsorption and degradation treatment device.

2. The novel sewage purification treatment device according to claim 1, wherein a filter layer is arranged above the adsorption and degradation treatment device, and a water outlet of the adsorption and degradation treatment device is arranged above the filter layer; the pipeline outlet of the sewage adjusting tank is arranged at the bottom of the adsorption degradation treatment device; the pipeline outlet of the degradation agent container is arranged at the bottom of the adsorption and degradation treatment device, and the pipeline outlet of the sewage adjusting tank and the pipeline outlet of the adsorption and degradation treatment device are arranged opposite to each other at the bottom outlet of the adsorption and degradation treatment device; and a stirring device is arranged in the adsorption degradation treatment device.

3. The novel sewage purification treatment device according to claim 2, wherein two splash guards which are opposite in upper and lower directions and are inclined at 35-45 degrees are further arranged in the adsorption and degradation treatment device, the splash guards are welded on the inner wall of the adsorption and degradation treatment device in an inclined manner along the diameter circumferential direction of the splash guards in the adsorption and degradation treatment device, and a water outlet of 100-300 mm is reserved at the lowest position; the two fenders are arranged above the outlets of the two pipelines.

4. The novel sewage purification treatment equipment according to claim 1, wherein a filter layer is arranged above the pH value neutralization device, and a water outlet of the pH value neutralization device is arranged above the filter layer; the pipeline outlet of the adsorption degradation treatment device is arranged at the bottom of the pH value neutralization device; the pipeline outlet of the pH value neutralization device is arranged at the bottom in the pH value neutralization device; the pipeline outlet of the adsorption degradation treatment device and the pipeline outlet of the neutralizer container are arranged opposite to the outlet at the bottom of the pH value neutralization device; and a stirring device is arranged in the pH value neutralizing device.

5. The novel sewage purification treatment device according to claim 1, wherein a filter layer is arranged above the fine filter device, and the water outlet of the fine filter device is arranged above the filter layer; the fine filtering device is also provided with two upper and lower splash guards which correspond to each other in different directions and are inclined by 35-45 degrees, the splash guards are welded on the inner wall of the fine filtering device in an inclined manner along the diameter circumferential direction of the splash guards in the fine filtering device, and a water outlet of 100-300 mm is reserved at the lowest position; the two fenders are arranged above the outlets of the two pipelines.

6. The novel sewage purification treatment device according to claim 2, 4 or 5, wherein the filtering layers of the adsorption degradation treatment device, the pH value neutralization device and the fine filtering device are provided with porous supporting plates, and a plurality of layers of filtering cloth and a plurality of layers of porous adsorption materials are paved on the porous supporting plates and are overlapped up and down;

the filter layers in the adsorption degradation treatment device and the pH value neutralization device are provided with 3-5 layers of filter materials, and the fine filter device is provided with 6-8 layers of filter materials; the total thickness of the filter layer may be determined according to the sizes and capacities of the adsorption degradation treatment device, the pH neutralization device, and the fine filtration device.

7. The sewage purification treatment device according to claim 1, wherein the sludge settling device is divided into a sludge settling tank and a water filtering tank, sludge is settled in the sludge settling tank, and a water pump and a water return pipe are arranged in the water filtering tank.

8. The novel sewage purification treatment apparatus according to any one of claims 1 to 7, wherein an automatic control device and an automatic sensing and measuring instrument are provided in the novel sewage purification treatment apparatus, the automatic sensing and measuring instrument automatically measures and timely and automatically transmits out measured data, changes of the measured data in the sewage treatment process are monitored immediately, and full-directional automatic monitoring and automatic operation control of the apparatus are performed by the automatic sensing and measuring instrument and the automatic control device; and the addition amount of the degradation agent and the pH value are adjusted in time according to the change of the monitoring data.

9. The novel sewage purification treatment device according to claim 2 or 4, wherein the stirring device is a submersible stirrer arranged below the adsorption degradation treatment device and the pH value neutralization device to stir and mix the sewage fully.

10. The novel sewage purification treatment device according to claim 1 or 7, wherein the pressure water pump in the sewage adjusting tank adopts a sludge submersible pump; and a backwater water pump in the sludge precipitation device adopts a submersible pressure pump.

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