CN206521313U

CN206521313U - Continuous wash biofilter

Info

Publication number: CN206521313U
Application number: CN201620966862.4U
Authority: CN
Inventors: 黄小伟; 潘晓雪; 谢芳; 徐小勇; 武玉真; 朱振江; 王水新
Original assignee: Zhejiang Lantian Qiushi Environmental Protection Co Ltd
Current assignee: Zhejiang Lantian Qiushi Environmental Protection Co Ltd
Priority date: 2016-08-29
Filing date: 2016-08-29
Publication date: 2017-09-26
Anticipated expiration: 2026-08-29

Abstract

This practicality is related to a kind of continuous wash biofilter, solves the deficiencies in the prior art, and technical scheme is：Including housing, filtering layer, filtering adsorpting device, filtering material cleaning device and type aeration bio-chemical equipment, filtering layer, water-distributing device, filtering material cleaning device and type aeration bio-chemical equipment are disposed in housing, the water-distributing device of crossing is disposed in the housing, the filtering layer is filled in the middle part and bottom of the housing, and the filtering material cleaning device and type aeration bio-chemical equipment are disposed in the bottom of housing.The utility model effluent quality is good, and required capital expenditure is few, and operating cost is few, and ground area is small, efficiency high；It is simple to operate and intensity is small, unattended operation can be realized substantially.

Description

Continuous wash biofilter

Technical field

The utility model is related to a kind of field of industrial waste water treatment, and more particularly to one kind can be filtered with automatically cleaning filtering layer and regeneration Expect the continuous wash biofilter being evenly distributed.

Background technology

Quartz filter is that wider filter plant is applied in water process, and he is situated between by the use of quartz sand as filtering Matter, under pressure, the higher water of turbidity by certain thickness particle or non-granular quartz sand filtration, effectively Suspension, organic matter, colloidal particles and microorganism that ground retention is gone in water removal etc., is finally reached reduction water turbidity, evolution water quality A kind of High-cfficiency Filtration equipment of effect.But existing quartz filter will periodically shut down backwash, when otherwise with operation Between growth, outlet effect is gradually deteriorated.By development, shifting sand filter is occurred in that, there is self-cleaning function, quartz sand can be made Automatically, continuously, uniform lifting cleaned to cleaning device, floor space is small, small investment, efficiency high.However, it is existing from Cleaning type shifting sand filter raw water filtration is carried out simultaneously with filtrate cleaning and regeneration, and filter cartridge is reapposed over after filtrate cleaning During body, often there is middle filtrate packing phenomenon, be unfavorable for filtrate and pave, cause filtrate poor fluidity, whole system Poor filtration effect, while quartz sand is merely capable of retaining suspension, organic matter, colloidal particles and microorganism in water, no The COD that can efficiently go in water removal, shifting sand filter needs other equipment to coordinate removal COD in use.

BAF is a kind of New biological membrane method sewage treatment process that the end of the eighties, America and Europe grew up, the work Skill, which has, removes the effect such as SS, COD, BOD, nitrification, denitrogenation, dephosphorization.BAF collection biological oxidation and retention suspend solid Body saves follow-up second pond in one, big with volumetric loading, and water conservancy load is big, and hydraulic detention time is short, required capital construction Small investment, effluent quality is good, and operation energy consumption is low, the characteristics of operating cost is few.But BAF of the prior art exists In operation, water inlet flow velocity is die-offed in water distributing area, causes the big quantity set mud in water distributing area, during BAF backwash, and collection mud is recoiled Wash water punching is floating, causes backwash overlong time, influences effluent quality, produces substantial amounts of backwashing water, processing water is largely reduced, Backwash interval time, the duration of other biological aerated filter are difficult to control, and backwash step is cumbersome, cause operation multiple Miscellaneous, layman can not be competent at operation element.

Utility model content

The purpose of this utility model is that solving above-mentioned prior art has BAF in operation, flow velocity of intaking Die-offed in water distributing area, cause the big quantity set mud in water distributing area, during BAF backwash, collection mud is backwashed water punching and floated, and causes anti- Overlong time is washed, effluent quality is influenceed, substantial amounts of backwashing water is produced, processing water is largely reduced, bio-aeration in addition is filtered Backwash interval time, the duration in pond are difficult to control, and backwash step is cumbersome, cause complex operation, layman without The problem of method is competent at operation element, there is provided a kind of continuous wash that can be evenly distributed with automatically cleaning filtering layer and regeneration filtrate is biological Filter tank.

The utility model solves the technical scheme that its technical problem used：A kind of continuous wash biofilter, it is special Levy and be：Including housing, filtering layer, water-distributing device, filtering material cleaning device and type aeration bio-chemical equipment, filtering layer, water-distributing device, filtrate are clear Cleaning device and type aeration bio-chemical equipment are disposed in housing, and the water-distributing device is disposed in the housing, the filtering layer filling At the middle part and bottom of the housing, the filtering material cleaning device and type aeration bio-chemical equipment are disposed in the bottom of housing.This reality Possess self-cleaning function with new, it is not necessary to periodically carry out backwash, be less prone to filtrate packing phenomenon, if water quality badly causes Filtrate lumps, and can carry out air cleaning；Continuously-running, stop cleaning filtrate is not needed typically；It is outstanding in energy effectively catching water Float, organic matter, colloidal particles and microorganism；The COD in waste water can effectively be adsorbed；Absorption can be effectively removed using microorganism COD, it is to avoid cause secondary pollution, reduces sludge yield；Back segment need not set second pond；Volumetric loading is big, and water conservancy load is big, Hydraulic detention time is short, modularized equipment, is adapted to dilatation increase treating capacity；Effluent quality is good, and required capital expenditure is few, running cost With less, ground area is small, efficiency high；It is simple to operate and intensity is small, unattended operation can be realized substantially.

Preferably, the housing is integrally cylindrical, the bottom of the housing is activated carbon collection bucket, and activated carbon is collected Bucket is in inverted coniform, and the housing passes through support feet with installing.

Preferably, the water-distributing device includes water inlet pipe, central waste pipe, water-locator, effluent weir and outlet pipe, it is described Water inlet pipe is connected by central waste pipe with the water-locator, and the water inlet pipe is located at the top of housing, the central waste pipe The heart is extended downwardly in the housing, and the water-locator is located at the top of the activated carbon collection bucket, and the effluent weir is annularly located at The top of case inside wall and higher than the water inlet pipe, the position of the housing correspondence effluent weir offers outlet pipe.

Preferably, filtering material cleaning device includes filtrate distributor, air lift, defeated charcoal pipe, defeated charcoal pipe conduit, spilling water Ring, charcoal separator, wash charcoal bucket, wash charcoal water pipe, filtrate scavenging air pipe and air compressor machine；The top of the filtrate distributor with Lower surface in the middle part of the water-locator is fixedly connected, and the air compressor machine is disposed in the outside of housing, and air compressor machine is cleaned by filtrate Air hose is connected with air lift, and the air lift is located in activated carbon collection bucket, the output of the air lift End is connected with the defeated charcoal pipe, and the defeated charcoal pipe is located at the middle part of housing, and the outer sheath of the defeated charcoal pipe is provided with defeated charcoal pipe conduit, Defeated charcoal pipe conduit upper end is connected by charcoal separator with the charcoal bucket of washing, described to wash charcoal bucket and be connected with washing charcoal water pipe, is washed Housing is run through in the end of charcoal water pipe, and the defeated charcoal pipe conduit upper end, which is located at below charcoal separator, is socketed with several spilling waters Ring.

Preferably, the type aeration bio-chemical equipment includes the first roots blower, the first air hose, the first aerator and the Two roots blowers, the second air hose, the second aerator, first aerator and the second aerator are arranged in described The lower surface of water-locator, first aerator is connected by the first air hose with first roots blower, and described second Aerator is connected by the second air hose with second roots blower, and first roots blower and the second roots blower are equal It is disposed in the outside of housing.In the case where long-term operation or influent quality are higher, there is hardened wind in activated carbon filtering layer Danger, need to carry out air purge by filtering layer, stop water inlet during air purge, while opening 2 sets of aerating systems, activated carbon filtering layer is fully expanded, After air purge 15 minutes, aerating system is closed, activated carbon filtering layer is cleaned with automatic cleaning and regeneration system, after filtering layer has been cleaned Recover to normal operation.

Preferably, the filtrate distributor is beveled structure SUS304 material distributors, include in filtrate distributor Some support tubes, filtrate distributor drift angle≤90 °.In this way, distribution is relatively reasonable.

Preferably, the filtering layer, the activated carbon filtering layer for being activated carbon particle size 0.5-1.0mm.Filtering layer, is made using activated carbon For filtering layer material, it is contemplated that activated carbon particle size is excessive to be will be unable to be promoted to defeated charcoal pipe by air lift, and excessive particle diameter Activated carbon easily blocks defeated charcoal pipe in cleaning process, causes equipment to be not normally functioning, through testing particle diameter 0.5-1.0mm activated carbons It is best suitable for the equipment and technique

Preferably, first aerator and the second aerator are air diffuser with sing-hole membranes, described first Aerator is the stand-by provision of the second aerator.Type aeration bio-chemical equipment is carried out by the way of a preparation and a use.

Preferably, the filtrate scavenging air pipe is 16mm compressed air plastic tubes, the pressure of the air compressor machine is 0.6-0.8MPa。

Preferably, the drift angle of the activated carbon collection bucket is less than or equal to 70 °.

Substantial effect of the present utility model is：Possess self-cleaning function, it is not necessary to periodically carry out backwash, be less prone to filter Expect packing phenomenon, if water quality badly causes filtrate to lump, air cleaning can be carried out；Continuously-running, need not typically shut down Clean filtrate；Suspension, organic matter, colloidal particles and microorganism in energy effectively catching water；Effectively it can adsorb in waste water COD；The COD of absorption can be effectively removed using microorganism, it is to avoid cause secondary pollution, reduce sludge yield；Back segment need not be set Put second pond；Volumetric loading is big, and water conservancy load is big, and hydraulic detention time is short, modularized equipment, is adapted to dilatation increase treating capacity； Effluent quality is good, and required capital expenditure is few, and operating cost is few, and ground area is small, efficiency high；It is simple to operate and intensity is small, can be basic Realize unattended operation.

Brief description of the drawings

Fig. 1 is a kind of overall structure diagram of the present utility model.

In figure：1. housing；2. activated carbon collection bucket；3. filtering layer；4. water inlet pipe；5. central waste pipe；6. water-locator；7. go out Mill weir；8. outlet pipe；9. filtrate distributor；10. air lift；11. defeated charcoal pipe；12. defeated charcoal pipe conduit；13. spilling water ring； 14. charcoal separator；15. wash charcoal bucket；16. wash charcoal water pipe；17. filtrate scavenging air pipe；18. air compressor machine；19. first sieve Thatch blower fan；20. the first air hose；21. the first aerator；22. the second roots blower；23. the second air hose；24. second exposes Device of air；25. support feet.

Embodiment

Below by specific embodiment, and with reference to accompanying drawing, the technical solution of the utility model is made further specifically It is bright.

Embodiment：

A kind of continuous wash biofilter（Referring to accompanying drawing 1）, including housing 1, filtering layer 3, water-distributing device, filtering material cleaning device And type aeration bio-chemical equipment, filtering layer, water-distributing device, filtering material cleaning device and type aeration bio-chemical equipment be disposed in housing, the cloth Water installations are disposed in the housing, and the filtering layer is filled in the middle part and bottom of the housing, the filtering material cleaning device and Type aeration bio-chemical equipment is disposed in the bottom of housing.The housing is integrally cylindrical, and the bottom of the housing is received for activated carbon Collection bucket 2, activated carbon collection bucket is in inverted coniform, and the housing passes through support feet with installing.The water-distributing device is included into Water pipe 4, central waste pipe 5, water-locator 6, effluent weir 7 and outlet pipe 8, the water inlet pipe pass through central waste pipe and the water distribution Device is connected, and the water inlet pipe is located at the top of housing, and the heart is extended downwardly the central waste pipe in the housing, the water-locator position In the top of the activated carbon collection bucket, the effluent weir is annularly located at the top of case inside wall and higher than the water inlet Pipe, the position of the housing correspondence effluent weir offers outlet pipe.Filtering material cleaning device is lifted comprising filtrate distributor 9, air Pump 10, defeated charcoal pipe 11, defeated charcoal pipe conduit 12, spilling water ring 13, charcoal separator 14, wash charcoal bucket 15, to wash charcoal water pipe 16, filtrate clear Wash air hose 17 and air compressor machine 18；The top of the filtrate distributor is fixedly connected with the lower surface in the middle part of the water-locator, institute The outside that air compressor machine is disposed in housing is stated, air compressor machine is connected by filtrate scavenging air pipe with air lift, and the air is carried Rise pump to be located in activated carbon collection bucket, the output end of the air lift is connected with the defeated charcoal pipe, and the defeated charcoal pipe is located at The middle part of housing, the outer sheath of the defeated charcoal pipe is provided with defeated charcoal pipe conduit, and defeated charcoal pipe conduit upper end passes through charcoal separator and institute State and wash the connection of charcoal bucket, it is described to wash charcoal bucket and be connected with washing charcoal water pipe, the end of charcoal water pipe is washed through housing, and the defeated charcoal pipe is led Pipe upper end, which is located at below charcoal separator, is socketed with several spilling water rings.The type aeration bio-chemical equipment includes the first roots blower 19th, the first air hose 20, the first aerator 21 and the second roots blower 22, the second air hose 23, the second aerator 24, institute State the first aerator and the second aerator is arranged in the lower surface of the water-locator, first aerator passes through One air hose is connected with first roots blower, and second aerator passes through the second air hose and the second Roots wind Machine is connected, and first roots blower and the second roots blower are disposed in the outside of housing.The filtrate distributor is umbrella shape Include some support tubes, filtrate distributor drift angle≤90 ° in structure SUS304 material distributors, filtrate distributor.The filter Layer, the activated carbon filtering layer for being activated carbon particle size 0.5-1.0mm.First aerator and the second aerator are hole membranes Air diffuser, first aerator is the stand-by provision of the second aerator.The filtrate scavenging air pipe is 16mm Compressed air plastic tube, the pressure of the air compressor machine is 0.6-0.8MPa.The drift angle of the activated carbon collection bucket is less than or equal to 70°。

Totally 2 sets of aerating system, uses a preparation and a use mode operation during normal operation, occur after the symptoms such as filtering layer caking, close Close into water, while opening 2 sets of aerating systems, can normally be intake after carrying out air purge, air purge to filtering layer.Waste water flows automatically or through water Water inlet pipe, central waste pipe, water-locator are sequentially passed through after pump supercharging, is finally uniformly flowed out by water-locator, then through activated carbon filtering layer The harmful substance such as suspension, organic matter, colloidal particles and microorganism and absorption solubility COD is retained, while there is aeration in filtering layer Device is constantly being aerated, the COD in the continuous Decomposition Wastewater of the microorganism on carbon leaching material, and equably overflow enters filter liquor Mill weir, is finally discharged by outlet pipe；Aerator and aerator have one to be enclosed on continual past filtering layer in activated carbon filtering layer Middle aeration, makes the dissolved oxygen stable of waste water in the range of 2-4mg/l, under this condition, and active carbon filtration surface forms biomembrane, quilt The harmful substances such as suspension, organic matter, colloidal particles, the COD that activated carbon filtering layer is adsorbed or retained are made in the aeration of aerator Under, by the microorganism decomposition on activated carbon surface biomembrane；Activated carbon filtering layer is in constantly retention suspension, organic matter, colloid In the case that particle, microorganism and the continuous aging of surface biological film come off, saturation state is reached gradually, because activated carbon is collected Bucket bottom has air lift constantly to take activated carbon and waste water mixed liquor away, and the activated carbon warp of saturation state is reached in filtering layer Filter material distributor evenly into activated carbon collection bucket, waste water and saturated activity charcoal in defeated charcoal pipe due to the disturbance of air, Mutual severe friction, suspension that activated carbon is retained, organic matter, colloidal particles, aging biomembrane are cleaned, into useless In water, activated carbon is regenerated, and is washed charcoal water and is overflowed the defeated charcoal pipe gravity flow of outflow into charcoal separator, activated carbon density is more than water Density, in charcoal separator, because the activated carbon that Action of Gravity Field is reproduced uniformly falls into activated carbon filtering layer top, washes charcoal water warp Spilling water ring overflow goes out, and is washed to enter after charcoal bucket is collected and washes charcoal water pipe, washes charcoal water and finally enters sludge concentration tank and is concentrated, and washes Charcoal water ring can control to wash the water of charcoal water according to charcoal water water quality adjustment water ring height is washed, and washing charcoal water ring height must be lower slightly In filter tank liquid level, otherwise wash charcoal waste water and occur and can not flow automatically, influence effluent quality；It is inclined in long-term operation or influent quality In the case of height, there is hardened risk in activated carbon filtering layer, filtering layer need to be carried out into air purge, stop water inlet during air purge, while opening 2 Aerating system is covered, activated carbon filtering layer is fully expanded, air purge closes aerating system after 15 minutes, by activated carbon filtering layer with automatically Cleaning and regeneration system is cleaned, and filtering layer recovers after having cleaned to normal operation.

The present embodiment possesses self-cleaning function, it is not necessary to periodically carry out backwash, is less prone to filtrate packing phenomenon, if water Matter badly causes filtrate to lump, and can carry out air cleaning；Continuously-running, stop cleaning filtrate is not needed typically；Can effectively it cut Stay suspension, organic matter, colloidal particles and the microorganism in water；The COD in waste water can effectively be adsorbed；Can be effective using microorganism Remove the COD of absorption, it is to avoid cause secondary pollution, reduce sludge yield；Back segment need not set second pond；Volumetric loading is big, Water conservancy load is big, and hydraulic detention time is short, modularized equipment, is adapted to dilatation increase treating capacity；Effluent quality is good, and required capital construction is thrown Money is few, and operating cost is few, and ground area is small, efficiency high；It is simple to operate and intensity is small, unattended operation can be realized substantially.

Embodiment described above is a kind of preferably scheme of the present utility model, not makees any to the utility model Formal limitation, also has other variants and remodeling on the premise of without departing from the technical scheme described in claim.

Claims

1. a kind of continuous wash biofilter, it is characterised in that：Including housing, filtering layer, water-distributing device, filtering material cleaning device and exposure Gas biochemical device, filtering layer, water-distributing device, filtering material cleaning device and type aeration bio-chemical equipment are disposed in housing, the water distribution dress Put and be disposed in the housing, the filtering layer is filled in the middle part and bottom of the housing, the filtering material cleaning device and aeration Biochemical device is disposed in the bottom of housing.

2. continuous wash biofilter according to claim 1, it is characterised in that：The housing is integrally cylindrical, institute The bottom for stating housing is activated carbon collection bucket, and activated carbon collection bucket is in inverted coniform, and the housing passes through support feet and peace Dress.

3. continuous wash biofilter according to claim 2, it is characterised in that：The water-distributing device comprising water inlet pipe, Central waste pipe, water-locator, effluent weir and outlet pipe, the water inlet pipe are connected by central waste pipe with the water-locator, institute The top that water inlet pipe is located at housing is stated, the heart is extended downwardly the central waste pipe in the housing, the water-locator is located at the work Property charcoal collection bucket top, the effluent weir is annularly located at the top of case inside wall and higher than the water inlet pipe, the shell The position of body correspondence effluent weir offers outlet pipe.

4. continuous wash biofilter according to claim 3, it is characterised in that：Filtering material cleaning device is distributed comprising filtrate Device, air lift, defeated charcoal pipe, defeated charcoal pipe conduit, spilling water ring, charcoal separator, wash charcoal bucket, wash charcoal water pipe, filtrate cleaning Air hose and air compressor machine；The top of the filtrate distributor is fixedly connected with the lower surface in the middle part of the water-locator, the pneumatics Machine is disposed in the outside of housing, and air compressor machine is connected by filtrate scavenging air pipe with air lift, the air lift position In in activated carbon collection bucket, the output end of the air lift is connected with the defeated charcoal pipe, and the defeated charcoal pipe is located at housing Middle part, the outer sheath of the defeated charcoal pipe is provided with defeated charcoal pipe conduit, and charcoal is washed in defeated charcoal pipe conduit upper end by charcoal separator with described Bucket is connected, described to wash charcoal bucket and be connected with washing charcoal water pipe, washes the end of charcoal water pipe through housing, the defeated charcoal pipe conduit upper end Several spilling water rings are socketed with below charcoal separator.

5. continuous wash biofilter according to claim 3, it is characterised in that：The type aeration bio-chemical equipment includes first Roots blower, the first air hose, the first aerator and the second roots blower, the second air hose, the second aerator, described One aerator and the second aerator are arranged in the lower surface of the water-locator, and first aerator is empty by first Tracheae is connected with first roots blower, and second aerator is connected by the second air hose and second roots blower Connect, first roots blower and the second roots blower are disposed in the outside of housing.

6. continuous wash biofilter according to claim 3, it is characterised in that：The filtrate distributor is beveled structure Include some support tubes, filtrate distributor drift angle≤90 ° in SUS304 material distributors, filtrate distributor.

7. continuous wash biofilter according to claim 3, it is characterised in that：The filtering layer, is activated carbon particle size 0.5-1.0mm activated carbon filtering layer.

8. continuous wash biofilter according to claim 5, it is characterised in that：First aerator and second exposes Device of air is air diffuser with sing-hole membranes, and first aerator is the stand-by provision of the second aerator.

9. continuous wash biofilter according to claim 4, it is characterised in that：The filtrate scavenging air pipe is 16mm Compressed air plastic tube, the pressure of the air compressor machine is 06-08MPa.

10. the continuous wash biofilter according to Claims 2 or 3 or 4 or 5 or 6 or 7 or 8, it is characterised in that：It is described The drift angle of activated carbon collection bucket is less than or equal to 70 °.