CN107244736A - Inside and outside mixing reverse-flow type device and technique for refinery(waste) water advanced treating - Google Patents
Inside and outside mixing reverse-flow type device and technique for refinery(waste) water advanced treating Download PDFInfo
- Publication number
- CN107244736A CN107244736A CN201710416023.4A CN201710416023A CN107244736A CN 107244736 A CN107244736 A CN 107244736A CN 201710416023 A CN201710416023 A CN 201710416023A CN 107244736 A CN107244736 A CN 107244736A
- Authority
- CN
- China
- Prior art keywords
- water
- filter material
- pond
- waste
- material pond
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses the inside and outside mixing reverse-flow type device and technique for refinery(waste) water advanced treating, device includes BAF, and the BAF includes the gas distribution cloth pond being sequentially communicated from bottom to top, one layer of filter material pond, two layers of filter material pond, clear water reserviors；Aerating system is set between one layer of the filter material pond, two layers of filter material pond, and one layer of the filter material pond, two layers of filter material pond are also connected by external external circulating device；The clear water reserviors inwall also sets up an effluent weir, wherein the upper port face of effluent weir is less than clear water reserviors upper port face, the effluent weir bottom sets two outlets, wherein first outlet connection outlet pipe, and second outlet is communicated to the inlet side in gas distribution cloth pond by reflux again.The present invention solves the low C/N of oil refining sewerage advanced treating advanced nitrogen dephosphorization technique, reaches water quality treatment country-level（A）Discharge standard.
Description
Technical field
The present invention relates to refinery(waste) water advanced treatment process, the inside and outside mixed of refinery(waste) water advanced treating is particularly used for
Close reverse-flow type device and technique.
Background technology
Refinery(waste) water is one of main industrial wastewater, because oil plant is that petroleum resources are chemically treated and regenerated
The production division of processing, the features such as with multi-product, many raw materials, Alternative, multi-method, determines that oil refining wastewater has discharge capacity
Greatly, the features such as big, the various changes of contents of pollutant kind is big, toxicity is big, pH scopes are wide is fluctuated；Therefore oil refinery waste water must enter
Row advanced treating could meet emission request.
BAF, (Biological Aerated Filter, abbreviation BAF) is a kind of solid using granule filter material
Determine the aerobic or anoxic bioreactor of biomembrane, the technique collects bio-contact oxidation with suspension filter bed retention functions in one
Body, is the New Technology about Wastewater Treatment risen in the world.At the sewage of the existing thousands of different sizes of American-European and Japan and other countries
Reason factory applies this technique.It can be widely applied to municipal sewage, community life sewage, living miscellaneous wastewater and food processing
Water, the treatment of Organic Wastewater such as brewage, with removing SS, CODcr, BOD, nitrification and denitrification, denitrogenation dephosphorizing, the work for removing AOX
With its maximum feature is that one is fixed in collection biological oxidation and retention suspension, and saves follow-up secondary sedimentation tank.The technique has
Machine thing volumetric loading is high, hydraulic load is big, hydraulic detention time is short, effluent quality is high, thus required floor space is small, capital construction is thrown
Money less, energy consumption and operating cost it is low.The birth of BAF New Technology about Wastewater Treatment, is once weighing for Environmental Protection in China field
Big technological break-through, has raised urban sewage treatment process new page.
The sewage treatment technique that its acute pyogenic infection of finger tip end of the eighties to beginning of the nineties of BAF rises, in American-European and day
This grade developed country is popular.The technique, which has, removes SS, COD, BOD, nitrification, denitrogenation, dephosphorization, removal AOX (nuisances
Matter) effect, the characteristics of its is maximum is collection biological oxidation and retention suspended solid and one, and saving post precipitation pond, (two is heavy
Pond), and it is big with volumetric loading, hydraulic load, and hydraulic detention time is short, and required capital expenditure is few, and effluent quality is good, runs energy
Consumption is low, the advantages of operating cost is few.BAF category third generation biofilm reactors, the advantage not only with biomembrane process technology, together
When also play the effect of effective spatial filtering, designed by using special filtrate and correct distribution, BAF has following technique
Feature 1, using the parallel upward flow of air water so that air water carry out it is fabulous divide equally, it is therefore prevented that bubble in filter material layer nuclei of condensation gas block up
Phenomenon, the utilization rate of oxygen is high, and energy consumption is low；2nd, with lower to flowing through filter on the contrary, upward flow filtration maintains whole filter tank height above carries
For positive pressure, can preferably avoid the formation of channel or short stream, thus avoid passing through to form channel influenceing filtering technique and
The air pocket of formation；3rd, upward flow is formd pushes away condition to the attached column that technique is beneficial to, even if using high filtration speed and load, still
It can guarantee that the lasting stability and validity of BAF techniques；4th, using the parallel upward flow of air water, spatial filtering is enable preferably to be transported
With air can bring solid matter into filter bed depths, high load capacity, uniform solid matter can be obtained in filter tank, so as to extend
Backwashing period, reduces air water amount when scavenging period and cleaning；5th, filter material layer makes bubble to the dissection thing of bubble
Extended residence time in filter tank, improves the utilization rate of oxygen；6th, due to the fabulous retaining power in filter tank so that behind BAF
It is not required to set secondary sedimentation tank again.BAF handling process can be used for improving micro polluted source raw water quality, Contemporary China majority city
Sewage treatment plant uses this PROCESS FOR TREATMENT life of urban resident waste water.After sewage removes thick floating, suspension through grid, enter
Preliminary sedimentation tank or hydrolysis acidification pool (strenuous primary treatment pond) carry out sand setting, oil removing and precipitation and remove the things such as part SS, COD, BOD simultaneously
The pretreated sewage of matter enters first order BAF-C/N filter tanks (or DN sedimentation basins), and most COD, BOD are dropped herein
Solution, part ammonia nitrogen is nitrified (or denitrification), and then sewage enters second level BAF-N filter tanks (or C/N filter tanks), carries out ammonia nitrogen
Thorough nitrification and COD, BOD further degraded, while carry out chemical dephosphorization, to ensure water outlet total phosphorus≤0.5mg/l, NH3-
In N≤5mg/l, TN≤10mg/l runnings, carry out needing to filter after a period of time is run in oxygen supply filter tank one or two grades of BAF bottoms
Pond is backwashed；Backwash uses combined water and air backwash, and backwashing sewage water returns to preliminary sedimentation tank or water by draining buffer pool
Acidification pool is solved, the excess sludge for mixing preliminary sedimentation tank or hydrolysis acidification pool with raw sewage carries out dewater treatment, mud cake outward transport disposal.If
From the denitrification process in DN filter tanks+C/N filter tanks, then need the effluent recycling in C/N filter tanks.
Aerating system or aerator refer to the equipment to aeration tank oxygen supply in waste water activated sludge process water treatment procedure.
Aeration refers to artificially be passed through air into biochemical aeration tank by appropriate equipment, to reach expected purpose.Aeration not only makes pond
Interior liquid-to-air contact oxygenation, and due to agitation liquid, accelerate oxygen in air and shifted into liquid, so as to complete oxygenation
Purpose；In addition, aeration, which also has, prevents that suspended substance sinks in pond, strengthens the mesh that organic matter is contacted with microorganism with dissolved oxygen in pond
, so as to ensure that microorganism is under conditions of having sufficient dissolved oxygen in pond, to the oxygenolysis of dirty Organic substance in water.Aeration
The quality of device, not only influences biochemical wastewater treatment effect, and directly influence Treatment stations occupation of land, investment and operating cost.
Aerator has following several ways:(1) air blower aerator:Mainly pass through aeration blower, connecting pipe, aerator group
Into.(2) Mechanical aerator:Mainly it is made up of underwater aeration machine and disperser.
By retrieval, application number：201310353821.9, publication date 2013-10-30 discloses a kind of Refinery Wastewater
Method.Methods described comprises the following steps：Oil removal, air supporting, one-level biochemistry, secondary biochemical, three-level biochemistry, precipitation.Wherein one-level
Heat exchanger is set to reduce waste water water temperature in biochemical treatment unit, secondary biochemical treatment unit carries out denitrification denitrogenation, and three-level is biochemical
Processing unit carries out the nitrification of ammonia nitrogen and the removal of the pollutant such as residual organic substances, three-level biochemical treatment unit mixed liquor and heavy
Shallow lake processing unit sludge is back to secondary biochemical treatment unit again.Ammonia nitrogen is gone present invention mainly solves refinery(waste) water treatment facility
The problem of being acted on except efficiency is low even without removal, the technique has the advantages that efficiently to remove ammonia nitrogen and denitrogenation, and handles effect
Rate is high, anti-shock loading is strong, stable effluent quality is up to standard, investment and operating cost are low.
By retrieval, application number：201110046391.7, publication date 2011-08-17 discloses a kind of high concentration refinery(waste) water
Handling process, mainly comprises the following steps：Refinery(waste) water is by materialized pretreatments such as oil removal, air supportings；Pretreated waste water enters
Enter three-stage biochemical treatment system；According to waste water quality situation, first paragraph biochemical treatment unit it is changeable for facultative reaction tank or
Aerobic reaction tank, corresponding completion Prepositive denitrification reaction or aerobic reaction remove sulphide removal；It is fixed in second segment biochemical treatment unit
Amount adds phosphate, main to remove the organic pollutions such as volatile phenol；3rd section of biochemical treatment unit mainly completes nitration reaction, essence
Really add the mixed solution of sodium hydroxide and sodium carbonate, regulation basicity and pH are to nitrifying suitable environment；It is between each section of biochemistry pool
Pulling flow type is run, and formula is thoroughly mixed for interior circulation inside each pond；Waste water enters tube settler, sedimentation basin bottom after biochemical treatment
Sludge is lifted by air-lift device.Clarification of water is gone out using the system of this technique, stable, technique flexibly, is suitable for each concentration refining
Oily waste water.
Both the above handling process, is unable to advanced nitrogen dephosphorization, and water quality treatment does not reach country-level (A) discharge mark
It is accurate, it is most important that technology disclosed above and the application are entirely different in technical scheme.
By retrieval, application number：201510398759.4, publication date 2015-11-11 discloses a kind of refinery(waste) water zero-emission
Technique is put, the technique comprises the following steps：(1) pre-process：Refinery(waste) water enters regulating reservoir after big impurity is removed through grille well；
(2) oil removal is handled：Regulating reservoir water outlet enters advection oil separation tank, and advection oil separation tank enters sloping plate oil separation tank, remove in waste water can
Oil slick and the finely divided oil in part；(3) air-flotation process：Sloping plate oil separation tank water outlet is promoted to one-level flotation tank, one by sewage pump
Level flotation tank discharges water to secondary air-floatation pond, and it is anti-that one-level flotation tank puts into aluminium polychloride progress coagulation air-float with secondary air-floatation pond
Should；(4) anaerobic biochemical treatment：The water outlet of secondary air-floatation pond enters hydrolysis acidification pool, by anaerobe by macromolecular in waste water
Organic matter is decomposed into small organic molecule, removes part COD；(5) aerobic treatment：Hydrolysis acidification pool water outlet connects into biology
Oxidation pond is touched, aerobic microbiological removes organic matter, ammonia nitrogen is removed under nitrification and denitrification effect；(6) Treatment of Sludge：One-level gas
Floating pond, secondary air-floatation pond, hydrolysis acidification pool, the sludge in contact-oxidation pool drain into sludge concentration tank and concentrated, sludge condensation
Pond supernatant is back to sludge after regulating reservoir, concentration and is dehydrated, mud cake outward transport disposal.
Technology disclosed above, with the application in technical scheme it is entirely different.Without any technical inspiration.
The content of the invention
It is an object of the invention to provide the inside and outside mixing reverse-flow type device and technique for refinery(waste) water advanced treating, solution
Certainly the low C/N of oil refining sewerage advanced treating advanced nitrogen dephosphorization technique, makes water quality treatment reach country-level (A) discharge mark
It is accurate.
In order to reach above-mentioned purpose, present invention employs following technical scheme, inside and outside refinery(waste) water advanced treating
Reverse-flow type device, including BAF are mixed, the BAF includes the gas distribution cloth being sequentially communicated from bottom to top
Pond, one layer of filter material pond, two layers of filter material pond, clear water reserviors；Aerating system is set between one layer of the filter material pond, two layers of filter material pond,
One layer of the filter material pond, two layers of filter material pond are also connected by external external circulating device；The clear water reserviors inwall is also set up
The upper port face of one effluent weir, wherein effluent weir is less than clear water reserviors upper port face, and the effluent weir bottom sets two outlets,
Wherein first outlet connects outlet pipe, and second outlet is communicated to the inlet side in gas distribution cloth pond by reflux again.
The external circulating device includes outer circulation water pipe, two layers of the filter material pond of inlet side connection of outer circulation water pipe, outer circulation water
Nitrification liquid reflux pump is installed in going out on one layer of filter material pond of end connection, the outer circulation water pipe for pipe.
Electric control valve is installed on the outer circulation water pipe.
The reflux includes return duct, and the import of return duct is connected with effluent weir second outlet, the outlet of return duct
The refluxing opening opened up with distributing channel side wall is connected, and the distributing channel bottom offers the water distribution for the inlet side for being communicated to gas distribution cloth pond
Outlet.
The import of the return duct is higher than the outlet of return duct.
Back flow regular is set on the return duct.
Baffle plate is set on the return duct.
The distributing channel water inlet is high-order water inlet, and the upper port face of distributing channel is highly higher than 1 meter of clear water reserviors upper port.
Supporting layer is set between one layer of the gas distribution cloth pond and filter material pond.
Filter plate is set between one layer of the gas distribution cloth pond and filter material pond.
In order to reach above-mentioned purpose, present invention employs following technical scheme, inside and outside refinery(waste) water advanced treating
Reverse-flow type technique is mixed, first, raw water is flow automatically through distributing channel enters gas distribution cloth pond while what is entered also has returning through return duct
Flowing water；
Secondly, one layer of the filter material pond that gas distribution cloth tank water stream is ascended into above supporting layer, carries out hypoxia response, outside certainly
The water that circulating water pipe is back to is sufficiently mixed, and current continue to rise to two layers of progress aerobic nitrification effect of filter material pond；
Finally, two layers of current of filter material pond are partly refluxed to one layer of filter material pond, and remainder rises to clear water reserviors, and current rise
To effluent weir open height, outflow, partly by the way that in return line flow to distributing channel, remainder is discharged.
Compared to prior art, the invention has the advantages that：
The concentration of active microorganism is much higher in BAF, and reactor volume is small, and is not required to second pond, takes up an area
Area is small, also with modular construction, the advantages of being easy to automatically control with foul smell less.Its topmost function is can be thin for nitrification
Bacterium provides a good nitrification environment.
Inside and outside mixing reverse-flow type technique, by increasing built-in, exterior water circulation, sets nitrogen nitrification zone, improves total carbon and goes
Except rate and nitric efficiency, denitrification efficiency is efficiently lifted, effluent quality is improved.
Using the anoxic of different Biostimulation agents formula, aerobe filtrate, improve denitrification, the life of oxidation of coal filter material layer
State environment, improves the activity of microorganism.
The inside and outside mixing reverse-flow type biological aerated filter process device of refinery(waste) water advanced treating of the present invention, increase is built-in, outer
Fill water circulation, script it is denitrifying on the basis of strengthen short-cut denitrification, nitrogen nitrification zone, i.e. one layer of filter material pond are set, exposed
Gas system, two layers of filter material pond, outer circulation water pipe, nitrification liquid reflux pump, improve total carbon clearance and nitric efficiency, efficiently lifting is anti-
Nitrification efficiency, has the advantages that effluent quality is good, operating cost is low, floor space is small.
Brief description of the drawings
Fig. 1 is the structural representation of the inside and outside mixing reverse-flow type device for refinery(waste) water advanced treating of the present invention.
In figure：1- distributing channels, 2- gas distribution cloth pond, 3- supporting layers, one layer of 4- filter material ponds, 5- aerating systems, 6- filter material ponds
Two layers, 7- clear water reserviors, 8- outlet pipes, 9- return ducts, 10- outer circulations water pipe, 11- back flow regulars, 12- baffle plates, 13- water outlets
Weir, 14- electric control valves, 15- electric control valves, 16- nitrification liquids reflux pump, 17- water (flow) directions, 18- filter plates.
Embodiment
Detailed description for the present invention and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing is only with reference to saying
It is bright to be used, not for being any limitation as to the present invention.
As shown in Figure 1, the inside and outside mixing reverse-flow type device for refinery(waste) water advanced treating, the outlet of effluent weir 13 with
The import of return duct 9 is connected, and recirculation water is back to distributing channel 1 by baffle plate 12, back flow regular 11, return duct 9 and is again introduced into exposure
Gas biofilter；The water inlet of gas distribution cloth pond 2 enters one layer of 4 progress anaerobic reaction of filter material pond, current by filter plate 18 and supporting layer 3
Rise through aerating system 5 and enter two layer of 6 progress aerobic nitrification effect of filter material pond, part water passes through nitre into outer circulation water pipe 10
Change liquid reflux pump 16 and electric control valve 15 and carry out anaerobic reaction again for one layer 4 into filter material pond, so as to efficiently lift denitrification
Efficiency.
The water inlet of distributing channel 1 is high-order water inlet, and the upper port face of distributing channel is highly higher than 1 meter of clear water reserviors upper port.
Two layer of 6 effluent recycling of filter material pond is to one layer 4 of filter material pond, and reflux ratio is 150%, and remainder flows to clear water reserviors 7；
The foreign exchange flow of outer circulation water pipe 10 is controlled by nitrification liquid reflux pump 16, electric control valve 15；
It is interior flow through return duct 9 be back to distributing channel 1 capacity of returns be 200%~300%, remainder discharge；
The capacity of returns of interior backflow is controlled by baffle plate 12, back flow regular 11.The available adjustment valve of baffle plate 12 is replaced.
Different biofilter materials is sintered to adapt to anoxic, aerobic ecological environment using different Biostimulation agent formulas
Biofilter material, to improve denitrification, oxidation of coal microorganism activity.
Inside and outside mixing reverse-flow type technique for refinery(waste) water advanced treating：
1. raw water is flow automatically through distributing channel 1 enters the also recirculation water through return duct 9 that gas distribution cloth pond 2 enters simultaneously；
2. one layer 4 of the filter material pond that the current of gas distribution cloth pond 2 are ascended into above supporting layer 3, carries out hypoxia response, and from outer
The water that circulating water pipe 10 is back to is sufficiently mixed, and current continue to rise to two layer of 6 progress aerobic nitrification effect of filter material pond；
3. two layer of 6 current of filter material pond are partly refluxed to filter material pond one layer 4, remainder rises to clear water reserviors 7, and current rise
To the open height of effluent weir 13, outflow is partly back in distributing channel 1 by the baffle plate 12 in return duct 9, back flow regular 11,
Remainder is discharged.
Experimental subjects (advanced treating influent quality pH=7.4-7.8, COD are used as using the actual waste water that certain oil plant is discharged
=100-150mg/L, TN=20-30mg/L, C/N=3.5~7.5).
Experimental condition is：BAF reactors flow of inlet water is 200L/h, and DO maintains 6~8mg/L, and HRT is 0.5h.
In external reflux ratio 150%, when internal reflux ratio is 250%, TN water outlets technical indicator is 6.5mg/L, and effluent index reaches
To country-level A standards.
BAF is BAF；
COD is COD, and COD (Chemical Oxygen Demand) is chemically to measure to need in water sample
The amount of oxidized reducing substances.In waste water, wastewater treatment plant effluent and contaminated water, the thing that can be aoxidized by strong oxidizer
The oxygen equivalent of matter (generally organic matter).Operation pipe in river pollution and industrial wastewater Quality Research and waste water treatment plant
In reason, it is an Organic Pollution parameter that is important and can comparatively fast determining, is often represented with symbol COD；
TN is inorganic and organic nitrogen the total amount of various forms in water.Inorganic nitrogen and the albumen such as including NO3-, NO2- and NH4+
The organic nitrogens such as matter, amino acid and organic amine, are calculated with the nitrogenous milligram number of every liter of water.Often it is used to represent water body dirty by nutriment
The degree of dye.
C/N is carbon-nitrogen ratio；
HRT is hydraulic detention time；
DO is dissolved oxygen, (dissolved oxygen；DO) molecular oxygen in air is dissolved in water referred to as dissolved oxygen.
The partial pressure of oxygen, the temperature of water have substantial connection in the content and air of dissolved oxygen in water.In the case of nature, in air
Oxygen content changes little, therefore water temperature is main factor, and water temperature is lower, and the content of oxygen in water is higher.It is dissolved in the water
Molecular oxygen is referred to as dissolved oxygen, is generally denoted as DO, is represented with the milligram number of oxygen in every liter of water.It is to weigh water body self-purification ability
One index.
Presently preferred embodiments of the present invention is the foregoing is only, is not used to limit the scope of the claims of the present invention, other are with this
The equivalence changes of patent of invention spirit, all should all belong to the scope of the claims of the present invention.
Claims (11)
1. for the inside and outside mixing reverse-flow type device of refinery(waste) water advanced treating, including BAF, it is characterised in that institute
Stating BAF includes the gas distribution cloth pond being sequentially communicated from bottom to top, one layer of filter material pond, two layers of filter material pond, clear water reserviors；
Aerating system is set between one layer of the filter material pond, two layers of filter material pond, and one layer of the filter material pond, two layers of filter material pond are also by external
External circulating device connected；The clear water reserviors inwall also sets up an effluent weir, and the upper port face of wherein effluent weir is less than
Clear water reserviors upper port face, the effluent weir bottom sets two outlets, wherein first outlet connection outlet pipe, and second outlet passes through
Reflux is communicated to the inlet side in gas distribution cloth pond again.
2. the inside and outside mixing reverse-flow type device according to claim 1 for refinery(waste) water advanced treating, it is characterised in that
The external circulating device include outer circulation water pipe, outer circulation water pipe inlet side connection two layers of filter material pond, outer circulation water pipe go out end
Connect and nitrification liquid reflux pump is installed on one layer of filter material pond, the outer circulation water pipe.
3. the inside and outside mixing reverse-flow type device according to claim 2 for refinery(waste) water advanced treating, it is characterised in that
Electric control valve is installed on the outer circulation water pipe.
4. the inside and outside mixing reverse-flow type device according to claim 1 or 2 for refinery(waste) water advanced treating, its feature exists
In the reflux includes return duct, and the import of return duct is connected with effluent weir second outlet, the outlet and water distribution of return duct
The connection of refluxing opening that canal side wall is opened up, what the distributing channel bottom offered the inlet side that is communicated to gas distribution cloth pond matches somebody with somebody water out.
5. the inside and outside mixing reverse-flow type device according to claim 4 for refinery(waste) water advanced treating, it is characterised in that
The import of the return duct is higher than the outlet of return duct.
6. the inside and outside mixing reverse-flow type device according to claim 4 for refinery(waste) water advanced treating, it is characterised in that
Back flow regular is set on the return duct.
7. the inside and outside mixing reverse-flow type device according to claim 4 for refinery(waste) water advanced treating, it is characterised in that
Baffle plate is set on the return duct.
8. the inside and outside mixing reverse-flow type device according to claim 4 for refinery(waste) water advanced treating, it is characterised in that
The distributing channel water inlet is high-order water inlet, and the upper port face of distributing channel is highly higher than 1 meter of clear water reserviors upper port.
9. the inside and outside mixing reverse-flow type device according to claim 1 or 2 for refinery(waste) water advanced treating, its feature exists
In setting supporting layer between one layer of the gas distribution cloth pond and filter material pond.
10. the inside and outside mixing reverse-flow type device according to claim 1 or 2 for refinery(waste) water advanced treating, its feature
It is, filter plate is set between one layer of the gas distribution cloth pond and filter material pond.
11. the inside and outside mixing reverse-flow type technique for refinery(waste) water advanced treating, it is characterised in that first, raw water is through distributing channel
Gravity flow enters the also recirculation water through return duct that gas distribution cloth pond enters simultaneously；
Secondly, one layer of the filter material pond that gas distribution cloth tank water stream is ascended into above supporting layer, carries out hypoxia response, and from outer circulation
The water that water pipe is back to is sufficiently mixed, and current continue to rise to two layers of progress aerobic nitrification effect of filter material pond；
Finally, two layers of current of filter material pond are partly refluxed to one layer of filter material pond, and remainder rises to clear water reserviors, and current rise to out
Mill weir open height, outflow, partly by the way that in return line flow to distributing channel, remainder is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710416023.4A CN107244736A (en) | 2017-06-05 | 2017-06-05 | Inside and outside mixing reverse-flow type device and technique for refinery(waste) water advanced treating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710416023.4A CN107244736A (en) | 2017-06-05 | 2017-06-05 | Inside and outside mixing reverse-flow type device and technique for refinery(waste) water advanced treating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107244736A true CN107244736A (en) | 2017-10-13 |
Family
ID=60018790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710416023.4A Pending CN107244736A (en) | 2017-06-05 | 2017-06-05 | Inside and outside mixing reverse-flow type device and technique for refinery(waste) water advanced treating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107244736A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114057352A (en) * | 2021-10-15 | 2022-02-18 | 尚川（北京）水务有限公司 | Circulating biological filter rural domestic sewage treatment system and treatment process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556376A (en) * | 2014-11-29 | 2015-04-29 | 北京工业大学 | Autotrophic nitrogen removal method for biological phosphorus removal of urban sewage based on short-cut denitrification for providing nitrite |
| CN204939086U (en) * | 2015-09-07 | 2016-01-06 | 济南优适富环保技术有限公司 | The multi-functional BAF of single-stage |
-
2017
- 2017-06-05 CN CN201710416023.4A patent/CN107244736A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556376A (en) * | 2014-11-29 | 2015-04-29 | 北京工业大学 | Autotrophic nitrogen removal method for biological phosphorus removal of urban sewage based on short-cut denitrification for providing nitrite |
| CN204939086U (en) * | 2015-09-07 | 2016-01-06 | 济南优适富环保技术有限公司 | The multi-functional BAF of single-stage |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114057352A (en) * | 2021-10-15 | 2022-02-18 | 尚川（北京）水务有限公司 | Circulating biological filter rural domestic sewage treatment system and treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102276103B (en) | Integrated in-situ denitrification culture wastewater biological treatment device and treatment method | |
| CN101811797B (en) | Coal gasification waste water biochemical treatment equipment and method | |
| CN106565017B (en) | A kind of bicirculating denitrogenation dephosphorizing waste water treatment system and its method | |
| CN104291441B (en) | The biochemical reaction tank of multi-scheme biochemical processing process sewage and operation method thereof | |
| CN106315853B (en) | Oxidation ditch membrane bioreactor and sewage treatment process and application thereof | |
| CN109761455A (en) | A kind of processing method of synthesis and the class pharmaceuticals industry sewage that ferments | |
| CN101746931A (en) | Denitrification dephosphorization biological treatment and filtration integral sewage treatment system and method thereof | |
| CN217148724U (en) | Sewage treatment integrated biological nitrogen and phosphorus removal device | |
| CN201598224U (en) | Biological nitrogen and phosphorus removal treatment and filter integrated sewage treatment system | |
| CN105967435A (en) | Double-circulation nitrogen and phosphorus removal wastewater treatment system and process | |
| CN113845218A (en) | Multistage AO sewage treatment system and process thereof | |
| CN105174642A (en) | Efficient biological denitrification method for sewage | |
| CN105776749B (en) | The catalysis oxidation that organic wastewater is electroplated combines polynary biochemical system and its deep treatment method | |
| CN110550739A (en) | aerobic and anaerobic VBBR (viable but anaerobic) series coupling device and sewage treatment method | |
| CN112209504B (en) | Spiral-flow type bioreactor | |
| CN103693818B (en) | Coking wastewater biochemical treatment and sedimentation tank | |
| CN208151064U (en) | Energy-efficient compact compound A2/O dephosphorization denitrogenation processing system | |
| CN216687842U (en) | Integrated device for deep total nitrogen removal treatment of high ammonia nitrogen sewage | |
| CN205710299U (en) | A kind of flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment | |
| CN109775936A (en) | A kind of low energy consumption domestic sewage processing system | |
| CN107244736A (en) | Inside and outside mixing reverse-flow type device and technique for refinery(waste) water advanced treating | |
| CN105948252B (en) | Up flow type activated sludge biological film oxidation ditch organic sewage treatment process and its system | |
| CN109292980A (en) | A kind of adjustable multistage AO-MBBR process spent water processing unit of series and method | |
| CN115286174A (en) | Low-energy-consumption integrated sewage treatment system and method reaching IV-class standard | |
| CN205501069U (en) | Electroplate organic waste water's many first biochemical system of catalytic oxidation combination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171013 |