CN209493455U - Highly concentrated oil-bearing wastewater advanced treatment system - Google Patents
Highly concentrated oil-bearing wastewater advanced treatment system Download PDFInfo
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- CN209493455U CN209493455U CN201920148461.1U CN201920148461U CN209493455U CN 209493455 U CN209493455 U CN 209493455U CN 201920148461 U CN201920148461 U CN 201920148461U CN 209493455 U CN209493455 U CN 209493455U
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Abstract
The utility model discloses a kind of highly concentrated oil-bearing wastewater advanced treatment systems, including the wastewater equalization pond for setting gradually and connecting, oil water separator, flotation tank, PH conditioning tank, Fenton's reaction pond, first coagulative precipitation tank, hydrolysis acidification pool, enhanced biological membrane cisterna, the flotation tank includes the first reaction tank, second reaction tank and air floatation machine, the first branch pipe for adding NaOH and aluminium polychloride is set on first reaction tank, the second branch pipe for adding polyacrylamide is provided in second reaction tank, oily waste water enters the first reaction tank after excluding surface oil slick using oil water separator after conditioning tank, the bigger floccule body of particle is generated in the first reaction tank and the second reaction tank, make suspended contaminant floating be stripped off realization by air floatation machine to be separated by solid-liquid separation, height is abolished by air bearing and advanced oxidation Molecular organic improves wastewater biodegradability, then reduces waste water COD by enhanced biological membrane cisterna, achievees the purpose that environment protection emission or reuse.
Description
Technical field
The utility model relates to oiliness sewage treatment fields, more specifically, it relates to which a kind of highly concentrated oil-bearing wastewater is deep
Spend processing system.
Background technique
Oily waste water is high-concentration waste water, mainly contains oil slick, oil emulsion and larger molecular organics, biodegradability compared with
Difference, it is difficult to directly be degraded by biochemistry.If oily waste water is not recycled, waste will cause；Be discharged into river,
Lake or bay, meeting polluted-water influence aquatile existence；For agricultural irrigation, then interstices of soil can be blocked, prevent air
It penetrates, soil and microorganism is made to cannot proceed normally metabolism, decline agricultural product quality and practical value, can be made when serious
At crop production reduction or death, oils migrates downward into the soil, it is also possible to serious underground water pollution is caused, especially containing cream
The waste water of carburetion can settle together with suspended particulate in waste water and iron scale in process facility and pipe-line equipment, and formation has
The greasy filth group of larger stickiness, blocking pipeline and equipment influences being normally carried out for production, therefore need to carry out to oily waste water effective
Processing.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of highly concentrated oil-bearing wastewater depth
Processing system can be effectively treated oily waste water, more environmentally-friendly.
To achieve the above object, the utility model provides following technical solution:
A kind of highly concentrated oil-bearing wastewater advanced treatment system, including wastewater equalization pond, the grease point for setting gradually and connecting
From device, flotation tank, PH conditioning tank, Fenton's reaction pond, the first coagulative precipitation tank, hydrolysis acidification pool, enhanced biological membrane cisterna, the gas
Floating pond includes the first reaction tank, the second reaction tank and air floatation machine, on first reaction tank setting for add NaOH and
First branch pipe of aluminium polychloride is provided with the second branch pipe for adding polyacrylamide in second reaction tank.
Oily waste water, which excludes after conditioning tank using oil water separator, enters the first reaction tank after the oil slick of surface, the
NaOH is added in one reaction tank, adjusts the PH to 8.5 of waste water, aobvious negative electrical charge colloid in aluminium polychloride and waste water is added and is formed
Be conducive to Aerosol particulates substance, add polyacrylamide and be condensed reaction, polyacrylamide keeps the small particle in waste water raw
At the bigger floccule body of particle, then so that suspended contaminant floating is stripped off realization by air floatation machine and be separated by solid-liquid separation, pass through gas in this way
Floating and advanced oxidation abolishes macromolecule organic, improves wastewater biodegradability, and subsequent reduced again by enhanced biological membrane cisterna is given up
Water COD, so that oily waste water achievees the purpose that environment protection emission or reuse.
The utility model is further arranged: further including the second coagulating sedimentation for being connected to enhanced biological membrane cisterna rear end in turn
Pond, filtering tank and reuse pool.
It can make the more thorough precipitating of particle in waste water by the second coagulative precipitation tank, using subsequent filter tank mistake
Filter separation, so that limpider after wastewater treatment, treated, and storage of waste water is spare in reuse pool, realizes the effective of waste water
It recycles.
The utility model is further arranged: first coagulative precipitation tank include PH readjustment pond, coagulating basin, flocculation basin and
First vertical sedimentation tank, first vertical sedimentation tank bottom are connected with sludge-tank, are added with polyaluminium in the coagulating basin
Aluminium, the flocculation basin is interior to be added with polyacrylamide.
By adding aluminium polychloride and polyacrylamide, so that the suspended particle object in waste water is flocculated and become larger, after being convenient for
Continuous precipitating, which is realized, to be separated by solid-liquid separation, and promotes to be separated by solid-liquid separation more thorough.
The utility model is further arranged: the enhanced biological membrane cisterna include mutually separated third reaction tank and in sink
Pond is provided with biologic packing material in the third reaction tank, and the bottom of the third reaction tank is provided with aeration tube, the medium sediment pool
Interior bottom is provided with the mud return line being connected in third reaction tank, is provided with sludge reflux pump on the mud return line.
Sludge in medium sediment pool is back in third reaction tank in time by mud return line, so that third is anti-
Sludge in Ying Chi is able to maintain higher concentration, reach subsequent sedimentation it is good while, it is ensured that sludge is dense in third reaction tank
Degree, so that the biochemical reaction efficiency in third reaction tank further increases.
The utility model is further arranged: FeSO is added in the Fenton's reaction pond4And H2O2。
H2O2In FeSO4The OH free radical with Strong oxdiative ability is generated under catalytic action, it is useless using OH oxidation removal
COD and decomposition larger molecular organics in water.
The utility model is further arranged: the backwash pipeline for passing to filtering tank, the mistake are connected on the reuse pool
Filter tank side is provided with the outlet pipe for backwash water output, and the outlet pipe passes to wastewater equalization pond far from one end of filtering tank
It is interior.
It in this way can be directly using the moisture in reuse pool come backwash filtering tank, it is ensured that filtering tank keeps good mistake for a long time
Filter state, the moisture after backwash can pass to wastewater equalization pond and carry out wastewater treatment again, realize the recycling of water resource.
The utility model is further arranged: is provided on extraction mud pipe and extraction mud pipe on the sludge-tank and is connected with folded spiral shell dehydration
Machine is connected with the filtrate pipe passed in wastewater equalization pond on the folded spiral shell dewaterer.
The sludge stockpiled in sludge-tank is evacuated in folded spiral shell dewaterer by extraction mud pipe and carries out subsequent dehydration, can accomplish
Timely cleaning to sludge in sludge-tank avoids stockpiling too much, mud cake and filtrate is obtained after dehydration, wherein outside mud cake
Fortune processing, and filtrate is back in primary sedimentation tank by filtrate pipe and is recycled, and achievees the purpose that water resource recycles.
The utility model is further arranged: Oil scraper is provided in the oil water separator, the Oil scraper includes multiple
The belt of runner and each runner of connection, is provided with oil storage tank in the oil water separator, the belt surface be fixed with by
Liquid level surface oil liquid is scraped to the scraper plate of oil storage tank.
Since oil liquid is mostly in liquid level surface, therefore by driving runner rotation to drive belt mobile, belt is mobile to be driven
Scraper plate movement scrapes oil liquid to oil storage tank, removal of the structure simple realization for oil liquid in waste water.
The utility model is further arranged: the notch side of the oil storage tank is extended with inclination guide plate directed downwardly, the skin
It takes and offers perforative oil leaking hole, the oil water separator inner wall is provided with the baffle parallel with guide plate, the baffle fitting
In belt inner surface.
Oil scraper is certain to speckle with many oil liquid on scraper plate and belt when in use, by the setting of oil leaking hole so that scraping
The oil liquid on its surface can drain back in liquid level in time when plate belt is in far from liquid level side, timely go convenient for oil liquid
It removes.
In conclusion the utility model has the following beneficial effects:
Oil slick slag is removed using oil water separator, macromolecule organic is then abolished using air bearing and advanced oxidation, is mentioned
High wastewater biodegradability reduces waste water COD by biochemical system, add high-molecular coagulant adopting and flocculation aid promote suspended matter and
The flocculation of colloid is finally realized and is separated by solid-liquid separation, achievees the purpose that oil removal, COD and colloid, finally by multi-medium filtering
Tank discharges after removing SS or reuse, so that the safety dumping of waste water or reuse, reduce the waste of water resource, and more environmentally-friendly.
Detailed description of the invention
Fig. 1 is the flow chart of the present embodiment；
Fig. 2 is the structure chart of the present embodiment pre-treatment；
Fig. 3 is the structure chart handled in the present embodiment；
Fig. 4 is the structure chart of the present embodiment post-processing；
Fig. 5 is the structure chart of sludge-tank in the present embodiment；
Fig. 6 is the structure chart of oil water separator in the present embodiment.
Appended drawing reference: 1, wastewater equalization pond；2, oil water separator；3, flotation tank；31, the first reaction tank；32, the second reaction
Pond；33, air floatation machine；34, the first branch pipe；35, the second branch pipe；4, PH conditioning tank；5, Fenton's reaction pond；6, the first coagulating sedimentation
Pond；61, PH adjusts back pond；62, coagulating basin；63, flocculation basin；64, the first vertical sedimentation basin；7, hydrolysis acidification pool；8, enhanced biological
Membrane cisterna；81, third reaction tank；82, medium sediment pool；83, biologic packing material；84, aeration tube；85, mud return line；86, sludge reflux
Pump；9, sludge-tank；10, extraction mud pipe；11, spiral shell dewaterer is folded；12, filtrate pipe；13, the second coagulative precipitation tank；131, pond is mixed fastly；
132, pond is mixed slowly；133, the second vertical sedimentation basin；14, intermediate pool；15, filtering tank；16, reuse pool；17, ultraviolet sterilization
Device；18, backwash pipeline；19, outlet pipe；201, runner；202, belt；203, scraper plate；21, oil storage tank；22, guide plate；23, it keeps off
Plate.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of highly concentrated oil-bearing wastewater advanced treatment system, as depicted in figs. 1 and 2, mainly include pre-treatment, it is middle processing and
Three links are post-processed, wherein pre-treatment mainly includes wastewater equalization pond 1, the oil water separator 2, air bearing for setting gradually and connecting
Pond 3, PH conditioning tank 4 and Fenton's reaction pond 5, oily waste water enter back into oil water separator 2 after being introduced into wastewater equalization pond 1
Removal of the middle realization for greasy dirt in waste water, then into flotation tank 3, which includes the first reaction tank 31, second
Reaction tank 32 and air floatation machine 33, and be provided on the first reaction tank 31 for adding NaOH and aluminium polychloride first
Branch pipe 34 is provided with the second branch pipe 35 for adding polyacrylamide in second reaction tank 32, throws in the first reaction tank 31
Add NaOH, adjust the PH to 8.5 of waste water, adds aobvious negative electrical charge colloid in aluminium polychloride and waste water and be formed with conducive to Aerosol particulates
Substance adds polyacrylamide and is condensed reaction, and polyacrylamide makes the small particle in waste water generate the bigger wadding of particle
Solidifying body is entered back into air floatation machine 33 and is sticked suspended contaminant in waste water using the micro-bubble of high degree of dispersion as carrier, makes it
Buoyancy is greater than gravity and resistance, so that so that pollutant is floated up to the water surface forms foam, then strikes off water surface foam, realizes solid-liquid
Separation.
Waste water is flow in PH conditioning tank 4 after air floatation machine 33, by adding H2SO4PH control is adjusted 2.5 ~ 3.5,
H is added respectively after into Fenton's reaction pond 52O2In FeSO4, H2O2In FeSO4Generating under catalytic action has Strong oxdiative ability
OH free radical, utilize COD in OH oxidation removal waste water and decompose larger molecular organics.
As shown in figures 1 and 3, middle processing mainly includes the first coagulative precipitation tank 6, hydrolysis acidification pool 7 and enhanced biological
Membrane cisterna 8, wherein the first coagulative precipitation tank 6 includes PH readjustment pond 61, coagulating basin 62, flocculation basin 63 and the first vertical sedimentation tank
64, PH is adjusted by adding NaOH, adjusts pH control 8.5 ~ 9.5, waste water, which enters, carries out flocculation reaction, system in flocculation basin 63
Design adds a small amount of PAM in flocculation basin 63, the effect caught and built bridge using the net of PAM, and the small particle in waste water is raw
Produce the large particulate matter more easily precipitated；And sludge-tank 9(such as Fig. 5 is connected in the bottom of the first vertical sedimentation tank 64), and
It is provided with extraction mud pipe 10 on sludge-tank 9, folded spiral shell dewaterer 11 is connected on extraction mud pipe 10, is connected with and passes on folded spiral shell dewaterer 11
Filtrate pipe 12 in wastewater equalization pond 1, the sludge stockpiled in sludge-tank 9 is evacuated to by extraction mud pipe 10 carried out in folded spiral shell dewaterer 11 after
Continuous dehydration can accomplish the timely cleaning to sludge in sludge-tank, avoid stockpiling too much, obtain after dehydration
Mud cake and filtrate, wherein mud cake outward transport is handled, and filtrate is back in wastewater equalization pond 1 by filtrate pipe 12 and is recycled, and reaches
The purpose recycled to water resource.
Waste water enters in hydrolysis acidification pool 7, can convert small-molecule substance for macromolecular substances by hydrolysis acidification pool 7,
Chain structure is converted by cyclic structure, the BOD/COD ratio of waste water is further improved, increases the biodegradability of waste water, be
Subsequent aerobic treatment creates good environment, and hydrolysis acidification handles organic wastewater, takes the first two of its Anaerobic Treatment
Stage (hydrolysis stage, acidification stage) is not required to seal and stir, the biodegradability of waste water can be improved at normal temperature.By
It is swift in response in hydrolysis acidification, therefore pool capacity is small, the residence time is short, and hydrolysis acidification reaction adapts to biggish water quality range, is discharged
Water stabilization.
Wherein enhanced biological membrane cisterna 8 includes spaced-apart third reaction tank 81 and medium sediment pool 82, is reacted in the third
It is provided with biologic packing material 83 in pond 81, and 81 bottom of third reaction tank is provided with aeration tube 84, is set in the bottom of medium sediment pool 82
Be equipped with the mud return line 85 for being connected to third reaction tank 81, be provided with sludge reflux pump 86 on sludge reflux tank, in this way in sink
Sludge in pond 82 is back in third reaction tank 81 in time by mud return line 85, so that third reaction tank 81
Interior sludge is able to maintain higher concentration, reach subsequent sedimentation it is good while, it is ensured that the concentration of sludge in third reaction tank 81,
So that the biochemical reaction efficiency in third reaction tank 81 further increases.
As shown in Figure 1 and Figure 4, post-processing mainly includes sequentially connected second coagulative precipitation tank 13, intermediate pool 14, mistake
Filter tank 15 and reuse pool 16, filtering tank 15 is multi-medium filtering tank, wherein the second coagulative precipitation tank 13 includes mixing pond fastly
131, pond 132 and the second vertical sedimentation tank 133 are mixed slowly, similarly adds PAC in fast mixed pond 131, are added in slow mixed pond 132
Small particle in waste water, is produced the large particulate matter more easily precipitated by PAM, and subsequent waste water passes through 14 transfer of intermediate pool
It is spare in reuse pool 16 by being passed to after the filtering of filtering tank 15 again afterwards, the processing of entire oily waste water is completed, reuse is connected to
It is provided with ultraviolet sterilizer 17 on reuse pipe on pond 16, kills the bacterium recycled in waste water in reuse pipe, thus
So that the more clean safety of the waste water recycled, is in addition connected with the backwash pipeline for passing to filtering tank 15 on reuse pool 16
18, the side of filtering tank 15 is provided with the outlet pipe 19 for backwash water output, and outlet pipe 19 is passed to far from one end of filtering tank 15
Wastewater equalization pond 1, in this way can be directly using the moisture in reuse pool 16 come backwash filtering tank 15, it is ensured that filtering tank 15 is permanent
Good filtration condition is kept, the moisture after backwash can pass to wastewater equalization pond 1 and carry out wastewater treatment again, realize returning for water resource
It receives and utilizes.
As shown in fig. 6, being provided with Oil scraper in oil water separator 2, which includes that multiple runners 201 and connection are each
The belt 202 that a runner 201 rotates, is provided with oil storage tank 21 on 2 inner wall of oil water separator, and is spaced and fixes on belt 202
Have and scrapes liquid level surface oil liquid to the scraper plate 203 in oil storage tank 21, in this way by driving the rotation of runner 201 that liquid level can oil
Liquid separation is stored in oil storage tank 21, and structure is simple and easy to operate；And inclination is extended in the notch side of oil storage tank 21
Guide plate 22 directed downwardly, offers perforative oil leaking hole on belt 202, at the same 2 inner wall of oil water separator be provided with it is flat with guide plate 22
Capable and fitting and the baffle 23 of 202 inner wall of belt, Oil scraper are certain to speckle with not on scraper plate 203 and belt 202 when in use
Few oil liquid, by the setting of oil leaking hole so that 203 belt 202 of scraper plate is in the oil liquid on its surface when far from liquid level side
It can drain back in liquid level in time, convenient for the timely removal of oil liquid, and 202 part of belt can be blocked by the setting of baffle 23
Oil leaking hole, avoiding the problem that oil liquid is leaked out from oil leaking hole during scraping oil liquid influences scraping effectiveness.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (9)
1. a kind of highly concentrated oil-bearing wastewater advanced treatment system, it is characterized in that: including the wastewater equalization pond for setting gradually and connecting
(1), oil water separator (2), flotation tank (3), PH conditioning tank (4), Fenton's reaction pond (5), the first coagulative precipitation tank (6), hydrolysis
Acidification pool (7), enhanced biological membrane cisterna (8), the flotation tank (3) include the first reaction tank (31), the second reaction tank (32) and
The first branch pipe (34) for adding NaOH and aluminium polychloride is arranged on first reaction tank (31) for air floatation machine (33),
The second branch pipe (35) for adding polyacrylamide is provided in second reaction tank (32).
2. highly concentrated oil-bearing wastewater advanced treatment system according to claim 1, it is characterized in that: further including being connected in turn
Second coagulative precipitation tank (13), filtering tank (15) and reuse pool (16) of enhanced biological membrane cisterna (8) rear end.
3. highly concentrated oil-bearing wastewater advanced treatment system according to claim 2, it is characterized in that: first coagulating sedimentation
Pond (6) includes PH readjustment pond (61), coagulating basin (62), flocculation basin (63) and the first vertical sedimentation tank (64), and described first is perpendicular
Sedimentation tank (64) bottom is connected with sludge-tank (9), and aluminium polychloride, the flocculation basin are added in the coagulating basin (62)
(63) polyacrylamide is added in.
4. highly concentrated oil-bearing wastewater advanced treatment system according to claim 1, it is characterized in that: the enhanced biological membrane cisterna
(8) include mutually separated third reaction tank (81) and medium sediment pool (82), be provided with biology in the third reaction tank (81) and fill out
Expect (83), the bottom of the third reaction tank (81) is provided with aeration tube (84), and the interior bottom of the medium sediment pool (82) is provided with company
The mud return line (85) in third reaction tank (81) is passed to, is provided with sludge reflux pump on the mud return line (85)
(86)。
5. highly concentrated oil-bearing wastewater advanced treatment system according to claim 1, it is characterized in that: the Fenton's reaction pond
(5) FeSO is added in4And H2O2。
6. highly concentrated oil-bearing wastewater advanced treatment system according to claim 2, it is characterized in that: the reuse pool (16)
On be connected with the backwash pipeline (18) for passing to filtering tank (15), filtering tank (15) side is provided with going out for backwash water output
Water pipe (19), the outlet pipe (19) pass in wastewater equalization pond (1) far from the one end of filtering tank (15).
7. highly concentrated oil-bearing wastewater advanced treatment system according to claim 3, it is characterized in that: on the sludge-tank (9)
It is provided on extraction mud pipe (10) and extraction mud pipe (10) and is connected with folded spiral shell dewaterer (11), be connected on the folded spiral shell dewaterer (11)
Pass to the filtrate pipe (12) in wastewater equalization pond (1).
8. highly concentrated oil-bearing wastewater advanced treatment system according to claim 1, it is characterized in that: the oil water separator
(2) Oil scraper is provided in, the Oil scraper includes the belt of multiple runners (201) and each runner (201) of connection
(202), it is provided with oil storage tank (21) in the oil water separator (2), belt (202) surface is fixed with liquid level surface oil
Liquid is scraped to the scraper plate of oil storage tank (21) (203).
9. highly concentrated oil-bearing wastewater advanced treatment system according to claim 8, it is characterized in that: the oil storage tank (21)
Notch side is extended with inclination guide plate (22) directed downwardly, and perforative oil leaking hole, the grease point are offered on the belt (202)
It is provided with the baffle parallel with guide plate (22) (23) from device (2) inner wall, the baffle (23) fits in belt (202) inner surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920148461.1U CN209493455U (en) | 2019-01-25 | 2019-01-25 | Highly concentrated oil-bearing wastewater advanced treatment system |
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| CN201920148461.1U CN209493455U (en) | 2019-01-25 | 2019-01-25 | Highly concentrated oil-bearing wastewater advanced treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111957074A (en) * | 2020-08-21 | 2020-11-20 | 徐州欧百瑞智能设备有限公司 | Filtering device for machine tool cutting oil circulating system and using method thereof |
| CN113754189A (en) * | 2021-09-06 | 2021-12-07 | 江苏丽天石化码头有限公司 | Multi-class cabin washing wastewater treatment system and treatment method |
| CN115893730A (en) * | 2022-11-22 | 2023-04-04 | 怀化市富源油业有限公司 | Method for rapidly treating edible oil production sewage and automatic oil-water separation device |
-
2019
- 2019-01-25 CN CN201920148461.1U patent/CN209493455U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111957074A (en) * | 2020-08-21 | 2020-11-20 | 徐州欧百瑞智能设备有限公司 | Filtering device for machine tool cutting oil circulating system and using method thereof |
| CN113754189A (en) * | 2021-09-06 | 2021-12-07 | 江苏丽天石化码头有限公司 | Multi-class cabin washing wastewater treatment system and treatment method |
| CN115893730A (en) * | 2022-11-22 | 2023-04-04 | 怀化市富源油业有限公司 | Method for rapidly treating edible oil production sewage and automatic oil-water separation device |
| CN115893730B (en) * | 2022-11-22 | 2023-10-17 | 江苏长江粮油科技有限公司 | Method for rapidly treating edible oil production sewage and automatic oil-water separation device |
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