CN207276428U - Sewage-treatment plant with cavitation air flotation sedimentation basin and membrane bioreactor - Google Patents
Sewage-treatment plant with cavitation air flotation sedimentation basin and membrane bioreactor Download PDFInfo
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- CN207276428U CN207276428U CN201721193401.9U CN201721193401U CN207276428U CN 207276428 U CN207276428 U CN 207276428U CN 201721193401 U CN201721193401 U CN 201721193401U CN 207276428 U CN207276428 U CN 207276428U
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- air flotation
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Abstract
The utility model is a kind of sewage-treatment plant with cavitation air flotation sedimentation basin and membrane bioreactor, including stirring pool, cavitation air flotation sedimentation basin, MBR ponds, effluent trough, self priming pump, roots blower, backwashing pump, the cavitation air flotation sedimentation basin includes contact zone of dissolved air flotation, air flotation zone, cone-shaped collection bucket, it is characterised in that：The stirring pool, contact zone of dissolved air flotation, air flotation zone, MBR ponds, effluent trough are sequentially connected；Cavltation aerator is equipped with the contact zone of dissolved air flotation；The air flotation zone bottom connects the cone-shaped collection bucket, and Slag Scraping Device is equipped with the top of air flotation zone and waste residue collecting tank, bottom are equipped with cavitation air flotation return duct, is equipped with collecting pipe above the cavitation air flotation return duct, the air flotation zone is connected by the collecting pipe with MBR ponds；The MBR bottom of pond portion is equipped with membrane bioreactor, mixed-liquor return pump, several aeration plates, and the membrane bioreactor connects effluent trough by the self priming pump with backwashing pump respectively.
Description
Technical field
A kind of sewage-treatment plant is the utility model is related to, is particularly disclosed a kind of with cavitation air flotation sedimentation basin and film life
The sewage-treatment plant of thing reactor.
Background technology
Livestock and poultry cultivation sewage quantity that current nationwide scaleization farm discharges daily is big, concentrates, and contains greatly in sewage
Pollutant is measured, such as CODcr, ammonia nitrogen, heavy metal, remaining veterinary drug and substantial amounts of pathogen, are such as directly discharged without processing,
It will cause seriously to pollute, its main harm is as follows：
1st, to the harm of water body：Aquaculture sewage belongs to the high concentration organic sewage containing a large amount of pathogen, large amount of organic
After matter enters water body, the dissolved oxygens in a large amount of consumption water are made water body smelly, cause aquatile largely dead by the decomposition of organic matter
Die；Nitrogen, phosphorus can make body eutrophication.
2nd, to the harm of atmospheric environment：Livestock and poultry cultivation sewage can produce substantial amounts of NH under anaerobic conditions3、H2The effluviums such as S
Body, these foul gas will influence and endanger the health of keeper and surrounding resident.
3rd, to the harm in farmland and crop：Containing nutrients such as more nitrogen, phosphorus, potassium in livestock and poultry breeding industry sewage, if not
Administration through any processing just directly, continuous, excessive, then can cause undesirable influence to the growth of soil and crops, such as draw
Playing crop yield reduces, postpones maturity period, the production for influencing succeeding crop etc..
Current cultivation industry, small medium-and-large-sized farm are designed with special sewage disposal system, are realized by process combination
Sewage disposal target, but for miniature farm, it is relatively fewer to go out sewage quantity daily, is usually 2-10T/D, this raiser
It is also very big to occupy ratio, and such raiser's fund is few, demand is big, it is difficult to there is the sewage disposal for meeting their demands
System.
The content of the invention
The purpose of this utility model is that the defects of solving the prior art, there is provided one kind carries cavitation air flotation sedimentation basin and film
The sewage-treatment plant of bioreactor, goes out that sewage quantity is relatively fewer, fund is few, can daily for the raiser of miniature farm
Using area it is big the characteristics of, the core process of livestock and poultry cultivation sewage disposal is focused in an equipment, makes full use of live dirt
The structures such as water tank, achieve the purpose that sewage disposal.
The utility model is realized in this way：A kind of sewage disposal with cavitation air flotation sedimentation basin and membrane bioreactor
Device, including stirring pool, cavitation air flotation sedimentation basin, MBR ponds, effluent trough, self priming pump, roots blower, backwashing pump, the cavitation gas
Floating sedimentation basin includes contact zone of dissolved air flotation, air flotation zone, cone-shaped collection bucket, it is characterised in that：The stirring pool, contact zone of dissolved air flotation, gas
Floating region, MBR ponds, effluent trough are sequentially connected；Cavltation aerator is equipped with the contact zone of dissolved air flotation；The air flotation zone bottom connects institute
Cone-shaped collection bucket is stated, Slag Scraping Device is equipped with the top of air flotation zone and waste residue collecting tank, bottom is equipped with cavitation air flotation return duct, the cavitation
Collecting pipe is equipped with above floatation reflux pipe, the air flotation zone is connected by the collecting pipe with MBR ponds；The MBR bottom of pond portion is set
There are membrane bioreactor, mixed-liquor return pump, several aeration plates, the self priming pump, the mixing are equipped with the top of the MBR ponds
Liquid reflux pump connects sewage tank, and the membrane bioreactor connects effluent trough by the self priming pump with backwashing pump respectively,
The roots blower connects the membrane bioreactor, several aeration plates respectively.
The stirring pool bottom is equipped with support column, side surface upper part is equipped with wastewater influent pipeline, top is equipped with adding of agent pipe
Road, speed mixer is equipped with the stirring pool, and the stirring pool passes through water outlet and the air supporting that its side bottom is set
Contact zone connects, and the wastewater influent pipeline connects the sewage tank.The contact zone of dissolved air flotation passes through the cavitation respectively
Floatation reflux pipe connects air flotation zone with the water outlet for being arranged on contact zone of dissolved air flotation side top.The water outlet of the membrane bioreactor
Pipeline connects the self priming pump, backwashing pump respectively, and the outlet pipeline of the self priming pump accesses the effluent trough, and the backwashing pump is set
Put and connect the side of the effluent trough, for extracting water in the side of the water outlet trench bottom, the inlet pipeline of the backwashing pump
For the membrane bioreactor backwash.The quantity of several aeration plates is 5-30.
The beneficial effects of the utility model are：The utility model is simple in structure, daily management is simple and convenient to operate, sewage
High treating effect, energy conservation and environmental protection.It is membrane bioreactor backwash that the backwashing pump of the utility model, which is used for, can effectively clear up film
Bioreactor, to ensure the effluent quality of the utility model.The utility model is for the higher wastewater treatment efficiency of SS concentration
More preferably.The speed mixer of the utility model stirring pool can make medicament play one's part to the full to produce larger alumen ustum, Ran Houjing
The sewage of processing enters air flotation zone after contact zone of dissolved air flotation and microbubble are sufficiently mixed, in air flotation zone by Slag Scraping Device by scum silica frost
Scrape in waste residue collecting tank, the big flocculation group not floated then is deposited in cone-shaped collection bucket, waste residue collecting tank and taper
Dirt in collection bucket is periodically cleared up according to sewage load, and the water after air-flotation process is entered in MBR ponds, MBR
Pond pumps the sewage tank by mixed-liquor return to scene by mixed-liquor return, is so conducive to remove ammonia nitrogen, composite technology
Afterwards, the utility model water outlet can meet field irrigation effluent standard.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：1st, speed mixer；2nd, Cavltation aerator；3rd, Slag Scraping Device；4th, waste residue collecting tank；5th, collecting pipe； 6、
Cavitation air flotation return duct；7th, cone-shaped collection bucket；8th, aeration plate；9th, membrane bioreactor；10th, self priming pump；11st, Luo Cifeng
Machine；12nd, mixed-liquor return pumps；13rd, backwashing pump；14th, stirring pool；15th, contact zone of dissolved air flotation；16th, air flotation zone； 17、MBR
Pond；18th, effluent trough；19th, wastewater influent pipeline；20th, adding of agent pipeline；21st, support column.
Embodiment
With reference to the accompanying drawings 1, a kind of sewage disposal dress with cavitation air flotation sedimentation basin and membrane bioreactor of the utility model
Put, including stirring pool 14, cavitation air flotation sedimentation basin, MBR ponds 17, effluent trough 18, self priming pump 10, roots blower 11, backwashing pump 13,
The cavitation air flotation sedimentation basin includes contact zone of dissolved air flotation 15, air flotation zone 16, cone-shaped collection bucket 7, the stirring pool 14, air supporting contact
Area 15, air flotation zone 16, MBR ponds 17, effluent trough 18 are sequentially connected；Cavltation aerator 2 is equipped with the contact zone of dissolved air flotation 15；It is described
16 bottom of air flotation zone connects the cone-shaped collection bucket 7, and the top of air flotation zone 16 is equipped with Slag Scraping Device 3 and waste residue collecting tank 4, bottom are equipped with
Cavitation air flotation return duct 6, the top of cavitation air flotation return duct 6 are equipped with collecting pipe 5, and the air flotation zone 16 passes through the collecting pipe
5 are connected with MBR ponds 17；17 bottom of MBR ponds is equipped with membrane bioreactor 9, mixed-liquor return pump 12, several aeration plates 8,
The top of MBR ponds 17 is equipped with the self priming pump 10, the 12 connection sewage tank of mixed-liquor return pump, the membrane bioreaction
Device 9 is answered to connect effluent trough 18 by the self priming pump 10 and backwashing pump 13 respectively, the roots blower 11 connects the film respectively
Bioreactor 9, several aeration plates 8.
14 bottom of stirring pool is equipped with support column 21, side surface upper part is equipped with wastewater influent pipeline 19, top is equipped with medicament
Pipeline 20 is added, speed mixer 1, the water outlet that the stirring pool 14 is set by its side bottom are equipped with the stirring pool 14
Mouth is connected with the contact zone of dissolved air flotation 15, and the wastewater influent pipeline 19 connects the sewage tank.The contact zone of dissolved air flotation
15 connect air flotation zone by the cavitation air flotation return duct 6 with the water outlet for being arranged on 15 side top of contact zone of dissolved air flotation respectively
16.The outlet pipeline of the membrane bioreactor 9 connects the self priming pump 10, backwashing pump 13 respectively, and the self priming pump 10 goes out
Water lines access the effluent trough 18, and the backwashing pump 13 is arranged on the side of 18 bottom of effluent trough, the backwashing pump 13
Inlet pipeline connect the side of the effluent trough 18, be 9 backwash of membrane bioreactor for extracting water.It is described several
The quantity of aeration plate 8 is 5-30.
The membrane bioreactor 9 is using the membrane bioreactor of Tianjin Motimo Membrane Technology Co., Ltd.'s production, film
Flux is less than 15L/ ㎡ .h.
During utility model works, sewage enters stirring pool 14 from the wastewater influent pipeline 19, is thrown by the medicament
Pipeline 20 is added to launch PAC, PAM medicament in stirring pool 14, the speed mixer 1 makes medicament sufficiently be mixed with sewage, and
Larger alumen ustum is produced, then processed sewage is filled in the microbubble that the contact zone of dissolved air flotation 15 is produced with Cavltation aerator 2
Air flotation zone 16 is entered after dividing mixing, is scraped the scum silica frost on 16 surface of air flotation zone, foam by the Slag Scraping Device 3 in air flotation zone 16
In waste residue collecting tank 4, the big flocculation group not floated then is deposited in the cone-shaped collection bucket 7, waste residue collecting tank 4 and cone
Dirt in shape collection bucket 7 is periodically cleared up according to sewage load, and the water after air-flotation process passes through the collecting pipe 5
Enter in MBR ponds 17, sewage tank of the MBR ponds 17 by mixed-liquor return pump 12 by mixed-liquor return to scene, so
Be conducive to remove ammonia nitrogen, after composite technology, the utility model water outlet can meet field irrigation effluent standard.The backwashing pump 13
The water extracted in effluent trough 18 is 9 backwash of membrane bioreactor；The roots blower 11 connects several aeration plates 8 respectively
For being aerated；The Cavltation aerator 2 can form a negative pressuren zone while microbubble is produced in the bottom of pond of air flotation zone 16,
This suction function can make sewage be back to contact zone of dissolved air flotation 15 by cavitation air flotation return duct 6 from the bottom of air flotation zone 16, this
A process ensure that 40% or so sewage backflow and without water inlet in the case of air supporting section it is still operable.
The utility model is simple in structure, daily management is simple and convenient to operate, good sewage processing effect, energy conservation and environmental protection.This reality
It is 9 backwash of membrane bioreactor to be used for new backwashing pump 13, can effectively clear up membrane bioreactor 9, to ensure this
The effluent quality of utility model.The utility model is more preferable for the higher wastewater treatment efficiency of SS concentration.The utility model stirs
The speed mixer 1 in pond 14 can make medicament play one's part to the full to produce larger alumen ustum, and then processed sewage is in air supporting
Contact zone 15 enters air flotation zone 16 after being sufficiently mixed with microbubble, and scum silica frost is scraped waste residue by Slag Scraping Device 3 in air flotation zone 16
In collecting tank 4, the big flocculation group not floated then is deposited in cone-shaped collection bucket 7, waste residue collecting tank 4 and cone-shaped collection bucket
Dirt in 7 is periodically cleared up according to sewage load, and the water after air-flotation process is entered in MBR ponds 17, MBR ponds 17
Sewage tank by mixed-liquor return pump 12 by mixed-liquor return to scene, is so conducive to remove ammonia nitrogen, composite technology
Afterwards, the utility model water outlet can meet field irrigation effluent standard.
Claims (5)
1. a kind of sewage-treatment plant with cavitation air flotation sedimentation basin and membrane bioreactor, including stirring pool, cavitation air flotation
Sedimentation basin, MBR ponds, effluent trough, self priming pump, roots blower, backwashing pump, the cavitation air flotation sedimentation basin include contact zone of dissolved air flotation,
Air flotation zone, cone-shaped collection bucket, it is characterised in that：The stirring pool, contact zone of dissolved air flotation, air flotation zone, MBR ponds, effluent trough connect successively
Connect；Cavltation aerator is equipped with the contact zone of dissolved air flotation；The air flotation zone bottom connects the cone-shaped collection bucket, air flotation zone top
Cavitation air flotation return duct is equipped with equipped with Slag Scraping Device and waste residue collecting tank, bottom, is equipped with and collects above the cavitation air flotation return duct
Pipe, the air flotation zone is connected by the collecting pipe with MBR ponds；The MBR bottom of pond portion is equipped with membrane bioreactor, mixed liquor returns
Stream pump, several aeration plates, the MBR ponds top are equipped with the self priming pump, and the mixed-liquor return pump connects sewage tank,
The membrane bioreactor connects effluent trough with backwashing pump by the self priming pump respectively, and the roots blower connects described respectively
Membrane bioreactor, several aeration plates.
2. the sewage-treatment plant with cavitation air flotation sedimentation basin and membrane bioreactor according to claim 1, its
It is characterized in that：The stirring pool bottom is equipped with support column, side surface upper part is equipped with wastewater influent pipeline, top is equipped with adding of agent pipe
Road, speed mixer is equipped with the stirring pool, and the stirring pool passes through water outlet and the air supporting that its side bottom is set
Contact zone connects, and the wastewater influent pipeline connects the sewage tank.
3. the sewage-treatment plant with cavitation air flotation sedimentation basin and membrane bioreactor according to claim 1, its
It is characterized in that：The contact zone of dissolved air flotation by the cavitation air flotation return duct and is arranged on contact zone of dissolved air flotation side top respectively
Water outlet connects air flotation zone.
4. the sewage-treatment plant with cavitation air flotation sedimentation basin and membrane bioreactor according to claim 1, its
It is characterized in that：The outlet pipeline of the membrane bioreactor connects the self priming pump, backwashing pump, the water outlet of the self priming pump respectively
Pipeline accesses the effluent trough, and the backwashing pump is arranged on the side of the water outlet trench bottom, the inlet pipeline of the backwashing pump
Connect the side of the effluent trough, be the membrane bioreactor backwash for extracting water.
5. the sewage-treatment plant with cavitation air flotation sedimentation basin and membrane bioreactor according to claim 1, its
It is characterized in that：The quantity of several aeration plates is 5-30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721193401.9U CN207276428U (en) | 2017-09-18 | 2017-09-18 | Sewage-treatment plant with cavitation air flotation sedimentation basin and membrane bioreactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721193401.9U CN207276428U (en) | 2017-09-18 | 2017-09-18 | Sewage-treatment plant with cavitation air flotation sedimentation basin and membrane bioreactor |
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| Publication Number | Publication Date |
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| CN207276428U true CN207276428U (en) | 2018-04-27 |
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| CN201721193401.9U Active CN207276428U (en) | 2017-09-18 | 2017-09-18 | Sewage-treatment plant with cavitation air flotation sedimentation basin and membrane bioreactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194316A (en) * | 2020-09-25 | 2021-01-08 | 中交一公局集团有限公司 | Integrated treatment system and treatment method for oily tunnel wastewater |
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2017
- 2017-09-18 CN CN201721193401.9U patent/CN207276428U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194316A (en) * | 2020-09-25 | 2021-01-08 | 中交一公局集团有限公司 | Integrated treatment system and treatment method for oily tunnel wastewater |
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