CN203095804U - Denitrification and dephosphorization advanced treatment device of high-concentration grease waste water - Google Patents
Denitrification and dephosphorization advanced treatment device of high-concentration grease waste water Download PDFInfo
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- CN203095804U CN203095804U CN 201320045988 CN201320045988U CN203095804U CN 203095804 U CN203095804 U CN 203095804U CN 201320045988 CN201320045988 CN 201320045988 CN 201320045988 U CN201320045988 U CN 201320045988U CN 203095804 U CN203095804 U CN 203095804U
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Abstract
The utility model discloses a denitrification and dephosphorization advanced treatment device of high-concentration grease waste water. The denitrification and dephosphorization advanced treatment device comprises a grating well, an accident adjusting pool, integrated three-level classified oil removal equipment, integrated anaerobic USAB (Upflow Anaerobic Sludge Blanket) equipment, integrated A/O/O biochemical equipment, an intermediate pool, an active carbon filter and a reclaimed water recycling pool which are sequentially communicated through fluid, wherein the integrated three-level classified oil removal equipment comprises an advection acid out oil separating pool, a first level floatation tank and a second level floatation tank which are communicated in sequence; the advection acid out oil separating pool is communicated with the accident adjusting pool, and the second level floatation tank is communicated with the integrated anaerobic USAB equipment. The denitrification and dephosphorization advanced treatment device provided by the utility model can be used for effectively treating grease existing in the waste water in different forms, effectively improving the grease treatment efficiency, and meanwhile, monitoring the oil removal effect and flowing back the unqualified waste water to perform oil removal so as to effectively reduce the treatment risk of the successive biological technique segments.
Description
Technical field
The utility model relates to sewage treatment area, particularly is used to handle the high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus of high fat content waste water.
Background technology
Along with the raising of The development in society and economy and living standards of the people, Chinese Plants grease industry is in the rapid growth stage, and the problem of environmental pollution of oils industry also is on the rise simultaneously.Owing to contain pollutents such as a large amount of lipid acid, surfactant, grease in such waste water, and present good emulsifying and affinity, sneak in the water body and can cause the rising rapidly of chemical oxygen demand (COD) (COD), biological oxygen demand (BOD), the difficulty of more having aggravated processing on a small quantity.The middle longer chain fatty acid, the oily substance that contain in the lipid organic waste water that enter the municipal sewage plant simultaneously are wrapped in the outer mass transfer that hinders oxygen of filler, cause the aerobic microbiological metabolism disorder.If the unprocessed surface water body that directly enters of this class material then endangers water ecosystem, the severe contamination surrounding environment.The waste water treatment process that investment is low, processing efficiency is high so food oils industry is badly in need of, be easy to manage.
In the prior art, waste disposal plant has air-float technology sewage disposal device and anaerobism, aerobic biochemical process spent water treatment facility etc., and with regard to regard to the high density oil wastewater, aforesaid device conducting is used also to have following technical disadvantages merely:
(1) adopt air-float technology that sewage is carried out oil removing and add man-hour, air supporting section water outlet oleaginousness instability impacts follow-up biochemical segment process processing;
(2) in a single day the bigger situation of variation water quality appears in the oil removing stage of air-float technology, and device can't in time adopt remedial measures;
Water outlet may be carried a large amount of mud when (3) anaerobic reaction was partly worked, and was unfavorable for the work of follow-up equipment;
(4) equipment too disperses the biochemical reaction stage, and cost is higher;
(5) complete assembly is because the effluent quality instability can't steady in a long-termly satisfy middle water reuse requirement.
The utility model content
At the deficiencies in the prior art, the purpose of this utility model is to provide a kind of high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus of handling the high density oil wastewater that is applicable to.
The utility model is achieved by the following technical solution: high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus, comprise the biochemical integration apparatus of grille well, accident equalizing tank, reclassify oil removing integration apparatus, anaerobic UASB integration apparatus, A/O/O, intermediate pool, activated charcoal filter and the middle water reuse tank of fluid communication successively, described reclassify oil removing integration apparatus comprises advection acid out oil trap, one-level air flotation pool and the secondary air-floatation pond of conducting successively; Advection acid out oil trap and the conducting of accident equalizing tank, secondary air-floatation pond and the conducting of anaerobic UASB integration apparatus; Three of the HCl dosing system add the top that outlet lays respectively at advection acid out oil trap, one-level air flotation pool and secondary air-floatation pond, two of the NaOH dosing system add the top that outlet lays respectively at one-level air flotation pool and secondary air-floatation pond, adding of emulsion splitter dosing system exports the top that is positioned at advection acid out oil trap, two of the PAC dosing system add the top that outlet lays respectively at one-level air flotation pool and secondary air-floatation pond, and two of the PAM dosing system add the top that outlet lays respectively at one-level air flotation pool and secondary air-floatation pond.
The high density oil wastewater mainly has following characteristics: the one, organic concentration height: COD generally more than 2000mg/L, have in addition up to several ten thousand and even hundreds of thousands of mg/L, comparatively speaking, BOD is lower, the ratio of BOD and COD is greater than 0.3; And the ratio of general waste water BOD and COD is less than 0.3.The 2nd, complicated component: it is in the majority with aromatics and heterogeneous ring compound to contain in the toxicant waste water organism, more than contain sulfide, nitride, heavy metal and toxic organic compound.The 3rd, the colourity height has peculiar smell, and some also gives out pungent stench, causes detrimentally affect to surrounding environment.The 4th, have stronger acid or stronger alkalescence." high density oil wastewater " has definite implication in this area, be common practise to those skilled in the art.
Above-mentioned high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus is equipped with air flotation turbo in the described one-level air flotation pool, and described secondary air-floatation is equipped with air-dissolving air-float machine and dissolved air release in the pond.
Above-mentioned high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus, the water side in described secondary air-floatation pond is equipped with oil-contg monitor in the online water.
Above-mentioned high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus, described anaerobic UASB integration apparatus comprise with the anaerobic UASB reactor of secondary air-floatation pond conducting and with anaerobic UASB reactor conducting anaerobism backflow pool; Conducting anaerobism backflow pool bottom is provided with the anaerobism reflux pump with the pipeline of anaerobic UASB reactor bottom; The biochemical integration apparatus conducting of anaerobism backflow pool and A/O/O.
Above-mentioned high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus, the biochemical integration apparatus of described A/O/O comprises anoxic pond, one-level catalytic oxidation and settling apparatus, two-stage biological contact oxidation and the settling apparatus of conducting in turn; Described anoxic pond and the conducting of anaerobism backflow pool, two-stage biological contact oxidation and settling apparatus and intermediate pool conducting.
Above-mentioned high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus, described one-level catalytic oxidation and settling apparatus comprise the one-level contact-oxidation pool and the one-level settling tank of mutual conduction; Described two-stage biological contact oxidation and settling apparatus comprise the two-stage biological contact oxidation pond and the second-level settling pond of mutual conduction; Described one-level contact-oxidation pool and anoxic pond conducting, one-level settling tank and the second contact-oxidation pool conducting, second-level settling pond and intermediate pool conducting.
Above-mentioned high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus is separately installed with slag scraper in advection acid out oil trap, one-level air flotation pool and the secondary air-floatation pond.
The implication of PAM: polyacrylamide, the implication of PAC: polymerize aluminum chloride, the implication of UASB: upflow anaerobic sludge blanket process, the implication of A/O/O: aerobic/anaerobic/aerobic.
The beneficial effects of the utility model are:
1, the reclassify oil removing integration apparatus in the utility model has adopted three grades of oil removing patterns in advection acid out oil trap, one-level air flotation pool and secondary air-floatation pond, two kinds of different oil removing process of cavitation air flotation technology and air-dissolving air-float have been comprised, can effectively improve the grease processing efficiency effectively at handling with the multi-form grease that exists in the sewage;
2, the utility model can be monitored deoiling effect, and waste water not up to standard is refluxed again carry out oil removing operation, effectively reduces generate subsequent metallization processes section and handles risk.
Description of drawings
Fig. 1 is the structural representation of the utility model high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus.
In the above-mentioned accompanying drawing: 1-grille well, 2-accident equalizing tank, 3-reclassify oil removing integration apparatus, 3-1-advection acid out oil trap, 3-2-one-level air flotation pool, 3-3-secondary air-floatation pond, 4-anaerobic UASB integration apparatus, 4-1-anaerobic UASB reactor, 4-2-anaerobism backflow pool, 4-3-anaerobism reflux pump, the biochemical integration apparatus of 5A/O/O, 5-1-anoxic pond, 5-21-one-level contact-oxidation pool, 5-22-one-level settling tank, 5-31-two-stage biological contact oxidation pond, the 5-32-second-level settling pond, 6-intermediate pool, 7-activated charcoal filter, water reuse tank among the 8-, the 9-water main, 10-stores up slag bath, the 11-air compressor machine, 12-gas blower, 13-sludge thickener, the 14-outer circulation refluxes, 15-accident equalizing tank interface, 1. grid, 2. one-level lift pump, 3. two-stage hoisting pump, 4. stirrer, 5. slag scraper, 6. air flotation turbo, 7. dissolved air release, 8. three grades of lift pumps, 9. anaerobism reflux pump, 10. triphase separator
Diving mixer,
The inner circulating reflux pump,
The level Four lift pump,
Backwash pump,
The HCl dosing system,
The NaOH dosing systemization,
The emulsion splitter dosing system,
The PAC dosing system,
The PAM dosing system,
Oil-contg monitor in the online water.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus comprises the biochemical integration apparatus 5 of grille well 1, accident equalizing tank 2, reclassify oil removing integration apparatus 3, anaerobic UASB integration apparatus 4, A/O/O, intermediate pool 6, activated charcoal filter 7 and the middle water reuse tank 8 of fluid communication successively, and described reclassify oil removing integration apparatus comprises advection acid out oil trap 3-1, one-level air flotation pool 3-2 and the secondary air-floatation pond 3-3 of conducting successively; Advection acid out oil trap 3-1 and 2 conductings of accident equalizing tank, secondary air-floatation pond 3-3 and 4 conductings of anaerobic UASB integration apparatus; Three of the HCl dosing system add the top that outlet lays respectively at advection acid out oil trap 3-1, one-level air flotation pool 3-2 and secondary air-floatation pond 3-3, two of the NaOH dosing system add the top that outlet lays respectively at one-level air flotation pool 3-2 and secondary air-floatation pond 3-3, adding of emulsion splitter dosing system exports the top that is positioned at advection acid out oil trap 3-1, two of the PAC dosing system add the top that outlet lays respectively at one-level air flotation pool 3-2 and secondary air-floatation pond 3-3, and two of the PAM dosing system add the top that outlet lays respectively at one-level air flotation pool 3-2 and secondary air-floatation pond 3-3.
In the described one-level air flotation pool 3-2 air flotation turbo is installed, in the described secondary air-floatation pond 3-3 air-dissolving air-float machine and dissolved air release is installed.
The water side of described secondary air-floatation pond 3-3 is equipped with oil-contg monitor in the online water; Can carry out at-once monitor to water outlet, if oil-contg surpasses safety value in the water outlet, the return-flow system OnNow, the secondary treatment that refluxes guarantees that generate subsequent metallization processes section influent quality is stable.
Described anaerobic UASB integration apparatus comprise with the anaerobic UASB reactor 4-1 of secondary air-floatation pond 3-3 conducting and with anaerobic UASB reactor 4-1 conducting anaerobism backflow pool 4-2; Conducting anaerobism backflow pool 4-2 bottom is provided with anaerobism reflux pump 4-3 with the pipeline of anaerobic UASB reactor 4-1 bottom; Biochemical integration apparatus 5 conductings of anaerobism backflow pool 4-2 and A/O/O.Add anaerobism backflow pool 4-2 in the conventional processing mode, it is additional to reflux immediately when anaerobic UASB reactor 4-1 sludge loss is serious, guarantees the treatment effect of anaerobic UASB reactor 4-1.
The biochemical integration apparatus of described A/O/O comprises anoxic pond 5-1, one-level catalytic oxidation and settling apparatus, two-stage biological contact oxidation and the settling apparatus of conducting in turn; Described anoxic pond 5-1 and anaerobism backflow pool 4-2 conducting, two-stage biological contact oxidation and settling apparatus and intermediate pool 6 conductings.
Described one-level catalytic oxidation and settling apparatus 5 comprise the one-level contact-oxidation pool 5-21 and the one-level settling tank 5-22 of mutual conduction; Described two-stage biological contact oxidation and settling apparatus comprise the two-stage biological contact oxidation pond 5-31 and the second-level settling pond 5-32 of mutual conduction; Described one-level contact-oxidation pool 5-21 and anoxic pond 5-1 conducting, the one-level settling tank 5-22 and the second contact-oxidation pool 5-31 conducting, second-level settling pond 5-32 and intermediate pool 6 conductings.
Be separately installed with slag scraper in advection acid out oil trap 3-1, one-level air flotation pool 3-2 and the secondary air-floatation pond 3-3.
In the present embodiment: be provided with grid crack 20mm grid in the grille well 1, can tackle macromole suspended substance in the water.Accident equalizing tank 2 is used for balanced water quality, and the bigger waste water of variation water quality such as alkali cleaning waste water that produce during to the production plant overhaul of the equipments store and pre-treatment, reduces the impact load to the subsequent technique section.Add HCl adjusting pH to 2 in advection acid out oil trap 3-1 water inlet, behind even stirring reaction, oil slick can be separated out in the water, collects discharging by slag scraper; One-level air flotation pool 3-2 adopts air flotation turbo to carry out gas release, but oil in water emulsion emerges in the bubble combination water, focuses on after being collected by slag scraper; Secondary air-floatation pond 3-3 adopts the air-dissolving air-float device to discharge gas, can combine with gas in the emersion water of back through remaining oils in the water after the air supporting of leading portion two-stage, focuses on after being collected by slag scraper.
The setting of the biochemical integrated apparatus 5 of A/O/O has following advantage: 1) solid-liquid separation efficiently, and the effluent quality high-quality is stable; 2) the excess sludge sludge output is little; 3) floor space is little, need not second pond, and processing unit is concentrated; 4) can remove ammonia nitrogen and hardly degraded organic substance; 5) overcome the drawback that sludge bulking easily takes place traditional activated sludge process; 6) convenient operation and management is easy to realize automatic control.
Activated charcoal filter 7 is arranged in water reuse tank 8 leading portions in the present embodiment, and water outlet is filtered at this, further reduces suspension content in the water, guarantees stable effluent quality.
In the present embodiment, the air-float technology of reclassify oil removing integration apparatus 3 adopts three grades of combinations, at the different existence forms of oil molecule in water, separates removal in different ways, reaches higher removal; And by in-line meter water outlet is monitored, in time carry out the technology adjustment; To add in the mechanism medicament kind more with the medicament of this matched with devices, can carry out corresponding adding at the different treatment section, particularly can carry out medicament according to different needs in the reclassify oil removing integration apparatus 3 and add; Each equipment in the biochemical integration apparatus 5 of A/O/O is concentrated, and can effectively reduce handling cost.
The foregoing description only is for the invention example clearly is described, and is not the qualification to the invention embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description, need not also can't give exhaustive here all embodiments.And conspicuous variation of being amplified out thus or change still are among the protection domain of the invention claim.
Claims (7)
1. high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus, it is characterized in that, comprise successively the grille well of fluid communication (1), accident equalizing tank (2), reclassify oil removing integration apparatus (3), anaerobic UASB integration apparatus (4), the biochemical integration apparatus (5) of A/O/O, intermediate pool (6), activated charcoal filter (7) and middle water reuse tank (8), described reclassify oil removing integration apparatus comprises advection acid out oil trap (3-1), one-level air flotation pool (3-2) and secondary air-floatation pond (3-3) of conducting successively; Advection acid out oil trap (3-1) and accident equalizing tank (2) conducting, secondary air-floatation pond (3-3) and anaerobic UASB integration apparatus (4) conducting; Three of the HCl dosing system add outlet and lay respectively at advection acid out oil trap (3-1), the top of one-level air flotation pool (3-2) and secondary air-floatation pond (3-3), two of the NaOH dosing system add the top that outlet lays respectively at one-level air flotation pool (3-2) and secondary air-floatation pond (3-3), adding of emulsion splitter dosing system exports the top that is positioned at advection acid out oil trap (3-1), two of the PAC dosing system add the top that outlet lays respectively at one-level air flotation pool (3-2) and secondary air-floatation pond (3-3), and two of the PAM dosing system add the top that outlet lays respectively at one-level air flotation pool (3-2) and secondary air-floatation pond (3-3).
2. high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus according to claim 1, it is characterized in that, in the described one-level air flotation pool (3-2) air flotation turbo is installed, in the described secondary air-floatation pond (3-3) air-dissolving air-float machine and dissolved air release is installed.
3. high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus according to claim 2 is characterized in that the water side in described secondary air-floatation pond (3-3) is equipped with oil-contg monitor in the online water.
4. high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus according to claim 3, it is characterized in that, described anaerobic UASB integration apparatus comprise with the anaerobic UASB reactor (4-1) of secondary air-floatation pond (3-3) conducting and with anaerobic UASB reactor (4-1) conducting anaerobism backflow pool (4-2); Conducting anaerobism backflow pool (4-2) bottom is provided with anaerobism reflux pump (4-3) with the pipeline of anaerobic UASB reactor (4-1) bottom; Anaerobism backflow pool (4-2) and biochemical integration apparatus (5) conducting of A/O/O.
5. high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus according to claim 4, it is characterized in that the biochemical integration apparatus of described A/O/O comprises anoxic pond (5-1), one-level catalytic oxidation and settling apparatus and the two-stage biological contact oxidation and the settling apparatus of conducting in turn; Described anoxic pond (5-1) and anaerobism backflow pool (4-2) conducting, two-stage biological contact oxidation and settling apparatus and intermediate pool (6) conducting.
6. high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus according to claim 5 is characterized in that, described one-level catalytic oxidation and settling apparatus comprise the one-level contact-oxidation pool (5-21) and the one-level settling tank (5-22) of mutual conduction; Described two-stage biological contact oxidation and settling apparatus comprise the two-stage biological contact oxidation pond (5-31) and the second-level settling pond (5-32) of mutual conduction; Described one-level contact-oxidation pool (5-21) and anoxic pond (5-1) conducting, one-level settling tank (5-22) and second contact-oxidation pool (5-31) conducting, second-level settling pond (5-32) and intermediate pool (6) conducting.
7. according to the arbitrary described high density oil wastewater denitrogenation dephosphorizing advanced treatment apparatus of claim 1~6, it is characterized in that, be separately installed with slag scraper in advection acid out oil trap (3-1), one-level air flotation pool (3-2) and secondary air-floatation pond (3-3).
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CN 201320045988 CN203095804U (en) | 2013-01-28 | 2013-01-28 | Denitrification and dephosphorization advanced treatment device of high-concentration grease waste water |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105016523A (en) * | 2015-07-06 | 2015-11-04 | 重庆泰克环保工程设备有限公司 | Phosphorus-containing wastewater treating and purifying system |
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2013
- 2013-01-28 CN CN 201320045988 patent/CN203095804U/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105016523A (en) * | 2015-07-06 | 2015-11-04 | 重庆泰克环保工程设备有限公司 | Phosphorus-containing wastewater treating and purifying system |
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