CN206308161U - A kind of pretreatment unit for processing Integrated Refinery And Petrochemical oily waste water - Google Patents
A kind of pretreatment unit for processing Integrated Refinery And Petrochemical oily waste water Download PDFInfo
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- CN206308161U CN206308161U CN201621178765.5U CN201621178765U CN206308161U CN 206308161 U CN206308161 U CN 206308161U CN 201621178765 U CN201621178765 U CN 201621178765U CN 206308161 U CN206308161 U CN 206308161U
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Abstract
The utility model is related to field of waste water treatment, particularly a kind of pretreatment system for processing Integrated Refinery And Petrochemical oily waste water.Including regulation tank, two grades of oil interceptors, one-level coagulation floatation, two-stage coagulation flotation tank and hydrolysis acidification pool (H ponds) processing units.Oily waste water passes sequentially through regulation tank, two grades of oil interceptors, one-level coagulation floatation, two-stage coagulation flotation tank and H ponds and is pre-processed, the sump oil that regulation tank and two grades of oil interceptors are separated is discharged into contaminated-oil basin, the scum silica frost pond that one-level coagulation floatation and two-stage coagulation flotation tank are separated is discharged into scum silica frost pond, the water outlet of two-stage coagulation flotation tank carries out enhanced hydrolysis acidifying after phosphate carries out enhanced coagulation into H ponds, the water outlet oil content of oil-polluted water is less than 20mg/L.
Description
Technical field
The utility model is related to sewage treatment area, particularly a kind of pretreatment system for processing Integrated Refinery And Petrochemical oily waste water
System.
Background technology
Certain northern bituminous fuel Co., Ltd is found in 2003, is by certain Investment Co., Ltd and certain northern pitch share
The share-issuing enterprise that Co., Ltd sets up jointly.Existing about 1700 mu of Liao Bin development zones project floor space, can use planning backup land
3000 mu, start to build in February, 2009, in the August, 2010 realizes the commissioning run test success of phase whole device so far.
Up to the present, the device being currently running has 3 sets of 1,500,000 tons/year of heavy-duty road asphalt devices, a set of 1,600,000 tons/year of delay coke
Makeup is put, 1,000,000 tons of catalysis, 1,500,000 tons of Atmospheric vacuums, 800,000 tons of full sulfur hydrogenation, 800,000 tons of the diesel oil transformations of the way, 800,000 tons of lubricating oil
Hydrogenation, 200,000 tons of alkylations, 2 sets of 20,000 tons of Nm/h dry gas hydrogen manufacturings devices, a set of 30,000 tons/year of sulfur recovery facilities and supporting public
Engineering and 300,000 tons of raw materials, finished product tank fields；Existing company is to seek bigger development, plan integral moving to another newly-built processing life
Producing region domain (apart from about 15 kilometers of current position), and plan newly-built third phase device (predominantly 1,000,000 tons/year residual hydrogenations,
1200000 tons/year of catalytic cracking units and 1,200,000 tons/year of continuous reformer).Leading products are heavy-duty road asphalt, third
Alkene, motor liquified gas, chemical industry light oil, transformer oil, petroleum coke, petroleum needle coke, all kinds of aromatic hydrocarbons and sulphur etc..The construction of project
Objective reach low input, high production, low consumption, discharge less, can circulate, continuable resources conservation target, reduce comprehensive single
Consumption index, realizes clean manufacturing.
With《Law of Environmental Protection of the People's Republic of China》With《Water prevention and cure of pollution action plan》Appearance successively, to environment
It is required that it is increasingly strict, the sewage disposal system stable operation problem of the said firm becomes increasingly conspicuous, therefore, company determines after investigation
Newly-built a set of scale is the sewage disposal system of 350m3/hr, is reached after making sewage disposal《Liaoning Province's integrated wastewater discharge standard
DB21/1627-2008》, and recycling for sewage is realized on this basis, reduce the discharge of the demand and sewage of fresh water
Amount.
Carried out in terms of the water quality characteristicses two that the pretreatment goal of petrochemical wastewater should produce drainage situation and waste water from enterprise
Analysis.First, enterprise's production has the unstability of its own.It is different with material quality according to product demand, production procedure and product
Amount can all have been adjusted, and the quantity and ratio of the different waste water that production procedure is discharged also are being continually changing.So, it is pretreated
Journey should carry out the balanced adjustment of water and water quality to waste water.
Secondly, influent quality feature and integrated artistic flow according to petrochemical wastewater, its pretreatment stage must go to decontamination
Oil content in water, meets the inflow requirement of biochemical treatment system；Part reduces the CODcr of waste water simultaneously, mitigates subsequent treatment
The organic pollution treatment load of unit.It can be said that the pretreating effect of petrochemical wastewater is directly connected to follow-up whole two grades of lifes
Change whether processing stage can normally be run；The selection of pretreating process has to accomplish that reliable and stable, removal efficiency is high, manages
It is convenient.
Utility model content
The purpose of this utility model is to provide a kind of pretreatment system for processing Integrated Refinery And Petrochemical oily waste water.
To achieve the above object, the technical solution adopted in the utility model is：
A kind of pretreatment system for processing Integrated Refinery And Petrochemical oily waste water, including regulation tank, two grades of oil interceptors, one-level coagulations
Flotation tank, two-stage coagulation flotation tank and H ponds；Oil-polluted water enters regulation tank after barrier removal rubbish, and water outlet is by weight in tank
After power is flowed into two grades of oil interceptors, one-level coagulation floatation, two-stage coagulation flotation tank and H ponds (hydrolysis acidification pool) pretreatment successively
Into advanced treatment system.
The regulation tank sets the annular oil collector that floats to remove most of oil slick and greasy filth；Two grades of oil interceptors set water inlet
Area, mud collection area, oil collecting zone, Disengagement zone and exhalant region；One-level coagulation floatation and two-stage coagulation flotation tank are by adding flocculant
And flocculation aid, the removing of the fine sump oil that suspended in promotion water；H ponds carry out enhanced hydrolysis acidifying using floating stuffing, improve sewage
Biodegradability, reduce subsequent biochemical system treatment load, regulation tank in set floating oil collector.
Two grades of oil interceptors are a container, and left side is provided with water inlet, right side and is provided with delivery port, in the appearance near water inlet side
Screen cloth (aperture 3-5mm) is provided with device, the hole on screen cloth is used as distributing hole so that the water entered in container is in the vertical of container
To evenly distributed on cross section, oily waste water is advanced in pond into advection state, is floated on the surface of the water with current oil droplet, silt sinks to
Bottom of pond；In oil baffle is provided with the container of delivery port side, space is left between the bottom of oil baffle and lower vessel portion, kept off
Oiled-plate method upper end and side wall are amplexiformed with container inner wall face；Screen cloth and oil baffle are in longitudinally disposed in container or top to delivery port
Side inclines and longitudinal direction setting at an acute angle；Oil slick and sludge conveying end are provided with upper vessel portion；In water inlet and grid it
Between form inhalant region, in container bottom formed mud collection area, in container top formed oil collecting zone, between grid and oil baffle formed
Disengagement zone, forms exhalant region between delivery port and oil baffle；
I and II coagulation floatation is a container, and side is provided with into sewage mouth, relative opposite side and is provided with Graceful
Mouthful, in first baffle is provided with the container for entering sewage mouth side, sky is left between the bottom of first baffle and lower vessel portion
Gap, the upper end of first baffle and side wall are amplexiformed with container inner wall face；Set in the container entered between sewage mouth and first baffle
It is equipped with agitator；Third baffle, the bottom of third baffle and lower vessel portion are provided with being close in the container of clear water output side
Between leave space, third baffle side wall or upper end and side wall are amplexiformed with container inner wall face；In first baffle and third baffle it
Between container in be provided with second baffle, the upper vessel portion between second baffle and third baffle is provided with Slag Scraping Device and deslagging
Mouthful；
Container bottom between first baffle and second baffle is provided with release, and granular filler also is housed including one
Closed container, is provided with shower nozzle, in the setting on the container side wall of clear water output side in the granular filler top of closed container
There is the backflow mouth of a river, the backflow mouth of a river is connected with the water inlet of a shower nozzle through water pump, is provided with to enter with release in the bottom of closed container
The connected dissolved air water outlet of mouth, is provided with the gas access being connected with an air compressor gas outlet at the top of closed container；
H ponds are a container, and container bottom is provided with pipe the water distributor for being evenly equipped with apopore, one end of water distributor and water inlet
It is connected, container middle part is provided with sieve plate, sieve plate is provided with floating stuffing ball and forms packing layer, and upper vessel portion is provided with delivery port.
Slag Scraping Device is flotation tank Slag Scraping Device；Release is water process release, in air-dissolving air-float water cleaning systems, pressing
Power dissolved air water discharges substantial amounts of micro air bubble after the device is depressured energy dissipating；Floating oil collector for float annular oil collector or
Floating circulation oil recovery apptss (such as patent No.： CN200420069880.X)；
The utility model is had the advantage that：
1. in order to prevent the petroleum hydrocarbons from influenceing follow-up biochemical unit, the utility model processing unit using oil removal-
Air supporting pretreatment system is pre-processed as it, controls the water outlet oil content of oil-polluted water to be less than 20mg/L.
2. the utility model processing unit collection regulation tank, two grades of oil interceptors, one-level coagulation floatation, two-stage coagulation air supportings
Pond and H ponds control the water outlet oil content of oil-polluted water to be less than 20mg/L, so as to ensure that successive depths treatment effect in one.
In addition two grades of oil interceptors are made up of inhalant region, mud collection area, oil collecting zone, Disengagement zone and the part of exhalant region five.Water inlet is set matches somebody with somebody
Water hole so that water inlet is evenly distributed on cross section, oily waste water is advanced in pond into advection state, as current proportion is lighter
Oil droplet float on the surface of the water, heavier silt sinks to bottom of pond.Two-stage air-float technology is used after oil removal, because entering in pneumatically supported sewage
Oil product is generally oil droplet that is fine and being difficult floating, intends, using flocculant and flocculation aid is added, forming larger oil-containing floccule body for this,
And collided with a large amount of micro air bubbles in water, it is bonded to larger floccule body bubble and rises to the water surface, suspend fine sump oil in promotion water
Removing.H ponds carry out enhanced hydrolysis acidifying using floating stuffing, to improve the biodegradability of sewage, reduce subsequent biochemical system
Treatment load.
3. the utility model is applied to the pretreatment of Integrated Refinery And Petrochemical oily waste water, and its inlet COD concentration allows to reach
2000mg/L, water inlet water inlet oil content allows to reach 500mg/L, and the water outlet of regulation tank enters two grades of oil interceptors, one-level coagulation air-floats
Pond, two-stage coagulation flotation tank, finally enter the further hydrolysis acidification in H ponds, make water outlet oil content less than 20mg/L, and COD is less than
1000mg/L。
Brief description of the drawings
Fig. 1 is two grades of oil interceptor installation drawings of the utility model.
Fig. 2 is the utility model one-level, two-stage coagulation flotation tank installation drawing.
Fig. 3 is the utility model H pool device figures.
Fig. 4 is the utility model processing unit figure.
In figure：1- water inlets, 2- water outlets, 3- grids, 4- oil slick, 5- oil baffles, 6- recirculation waters, 7- air compressor machines, 8- sprays, 9-
Filler, 10- dissolved air waters, 11- clear water outputs, 12- recirculation waters, 13- slag-drip openings, 14- Slag Scraping Devices, 15- releases, 16- superposed layers,
17- sludge blankets, 18- regulations tank, bis- grades of oil interceptors of 19-, 20- one-levels coagulation floatation, 21- two-stage coagulations flotation tank, 22-H ponds.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, but the utility model is claimed
Scope be not limited to embodiment statement scope.
Embodiment 1
A kind of pretreatment system for processing Integrated Refinery And Petrochemical oily waste water, including regulation 18, two grades of oil interceptors 19, one-level of tank
Coagulation floatation 20, two-stage coagulation flotation tank 21 and H ponds 22.(referring to Fig. 1, Fig. 2 and Fig. 3).
Regulation tank, specification 21 × 14.4m of Φ set the annular oil collector that floats to remove most of oil slick and greasy filth in tank.
Two grades of oil interceptor (materials：304 stainless steel under liquid；Scraper plate fiberglass) be oily waste water main units, by entering
Pool, mud collection area, oil collecting zone, Disengagement zone and the part of exhalant region five composition.Water inlet sets distributing hole so that water inlet is cross-section
Evenly distributed on face, oily waste water is advanced in pond into advection state, is floated on the surface of the water with the lighter oil droplet of current proportion, heavier
Silt sink to bottom of pond.The suspended oil with diameter greater than 0.1mm in the stage main place to go water body.Two grades of water outlets of oil interceptor
Oil concentration will drop to below 200mg/L.Bottom of pond contains the sludge (moisture content is about more than 90%) of a large amount of sump oils, through mud valve
Drain into sludge pipe and enter Treatment of Sludge recovery system.Residence time 5h, flow 70m3/ h, oil interceptor superelevation≤0.4m, working water
Depth is 3.1m.
Coagulation floatation, is divided into one-level coagulation floatation (contain supporting stirring, supporting air dissolving system and scrape slag equipment) and two
Level coagulation floatation (contains supporting stirring, supporting air dissolving system and scrapes slag equipment).Need to particularly point out, I and II coagulation floatation
It is mounted on release, it is therefore an objective to improve the distributing homogeneity of water outlet, increases microbubble and collide adhesion with pending impurities in water
Probability so that further improve flotation waste water treatment effect.Because into pneumatically supported Oil in Sewage Water product be generally it is fine be difficult float
Oil droplet, intends for this using flocculant and flocculation aid is added, and forms larger oil-containing floccule body, and touch with a large amount of micro air bubbles in water
Hit, be bonded to larger floccule body bubble and rise to the water surface, the removing of the fine sump oil that suspended in promotion water.Using polymerization more than flocculant
Aluminium, uses polyacrylamide flocculation aid more.To make the tiny sump oil of removal more thorough, the utility model flotation tank uses two-stage string
Connection, the content of oil is down to 50mg/L or so in water outlet after one-level air-flotation process, then oil in water outlet after being processed through secondary air-floatation
Content is less than below 20mg/L.
H ponds reduce the treatment load of subsequent biochemical system to improve the biodegradability of sewage.The utility model H ponds use
Floating stuffing ball (Φ 150mm, density 1.1-1.3kg/dm3) carry out enhanced hydrolysis acidifying.Hydrolysis and two stages of acidifying it is anti-
Process is answered, suspension organic matter and macromolecular substances (such as petroleum-type) small point can be hydrolyzed into by extracellular microbial exoenzyme
Son, small organic molecule changes into the process of volatile fatty acid under acidifying bacterium effect.In this course simultaneously can be by
Suspended solid is hydrolyzed to dissolved organic matter, the macromolecular substances of difficult for biological degradation is converted into the small molecule of easily biological-degradable
Material.
All kinds of sewage that certain northern bituminous fuel Co., Ltd discharges are pre-processed using said apparatus, treatment knot
Really：A kind of pretreatment system for processing Integrated Refinery And Petrochemical oily waste water for the oily waste water of bio-refractory and other waste water its
CODcr clearances 50%, oily clearance 96%.
The micro- aerobic hydrolysis acidification method of table 1 and the utility model treatment Integrated Refinery And Petrochemical oily waste water experimental result contrast
Table 1 provides the utility model with micro- aerobic hydrolysis acidification method treatment Integrated Refinery And Petrochemical oily waste water experimental result pair
Than.Table 1 shows the present embodiment compared with the method for micro- aerobic hydrolysis acidification method treatment Integrated Refinery And Petrochemical oily waste water, in CODcr
It is significantly improved with the treatment effect of oil.
Claims (3)
1. it is a kind of process Integrated Refinery And Petrochemical oily waste water pretreatment unit, it is characterised in that：
Including regulation tank 18, two grades of oil interceptors 19, one-level coagulation floatation 20, two-stage coagulation flotation tank 21 and H for being sequentially connected in series
Pond 22；
Oil-polluted water enters regulation tank 18 after removing oil removal through grid, water outlet is flowed into two grades by gravity successively in regulation tank
Oil interceptor 19, one-level coagulation floatation 20, two-stage coagulation flotation tank 21 and H ponds 22 are flowed out after pre-processing；
Floating oil collector is set in regulation tank 18；
Two grades of oil interceptors are a container, and left side is provided with water inlet, right side and is provided with delivery port, in the container of water inlet side
Screen cloth is provided with, the hole on screen cloth is used as distributing hole so that the water entered in container is distributed on the longitudinal cross-section of container
Uniformly, oily waste water is advanced in pond into advection state, is floated on the surface of the water with current oil droplet, silt sinks to bottom of pond；In near go out
Oil baffle is provided with the container of mouth of a river side, space, oil baffle upper end and side are left between the bottom of oil baffle and lower vessel portion
Wall is amplexiformed with container inner wall face；Screen cloth and oil baffle are inclined and indulged in longitudinally disposed in container or top to delivery port side
To direction setting at an acute angle；Oil slick and sludge conveying end are provided with upper vessel portion；Inhalant region is formed between water inlet and grid,
Mud collection area is formed in container bottom, oil collecting zone is formed in container top, Disengagement zone is formed between grid and oil baffle, in water outlet
Exhalant region is formed between mouth and oil baffle；
I and II coagulation floatation is a container, and side is provided with into sewage mouth, relative opposite side and is provided with clear water output, in
First baffle is provided with the container for entering sewage mouth side, space is left between the bottom of first baffle and lower vessel portion, the
The upper end of one baffle plate and side wall are amplexiformed with container inner wall face；Stirred in being provided with the container entered between sewage mouth and first baffle
Mix device；In third baffle is provided with the container of clear water output side, left between the bottom of third baffle and lower vessel portion
Space, third baffle side wall or upper end and side wall are amplexiformed with container inner wall face；Appearance between first baffle and third baffle
Second baffle is provided with device, the upper vessel portion between second baffle and third baffle is provided with Slag Scraping Device and slag-drip opening；
Container bottom between first baffle and second baffle is provided with release, also closed equipped with granular filler including one
Container, shower nozzle is provided with the granular filler top of closed container, is provided with back on the container side wall of clear water output side
Flowing water mouthful, the backflow mouth of a river is connected through water pump with the water inlet of a shower nozzle, is provided with and release import phase in the bottom of closed container
Dissolved air water outlet even, is provided with the gas access being connected with an air compressor gas outlet at the top of closed container；
H ponds are a container, and container bottom is provided with pipe the water distributor for being evenly equipped with apopore, one end and the water inlet phase of water distributor
Even, container middle part is provided with sieve plate, and sieve plate is provided with floating stuffing ball and forms packing layer, and upper vessel portion is provided with delivery port.
2. the pretreatment unit as described in claim 1, it is characterised in that：Slag Scraping Device is flotation tank Slag Scraping Device.
3. the pretreatment unit as described in claim 1, it is characterised in that：Floating oil collector is annular oil collector or the floating of floating
Circulation oil collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621178765.5U CN206308161U (en) | 2016-11-03 | 2016-11-03 | A kind of pretreatment unit for processing Integrated Refinery And Petrochemical oily waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621178765.5U CN206308161U (en) | 2016-11-03 | 2016-11-03 | A kind of pretreatment unit for processing Integrated Refinery And Petrochemical oily waste water |
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| Publication Number | Publication Date |
|---|---|
| CN206308161U true CN206308161U (en) | 2017-07-07 |
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| CN201621178765.5U Active CN206308161U (en) | 2016-11-03 | 2016-11-03 | A kind of pretreatment unit for processing Integrated Refinery And Petrochemical oily waste water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569749A (en) * | 2020-11-20 | 2021-03-30 | 恩宜瑞(江苏)环境发展有限公司 | Device for pretreating oil-containing waste gas |
| CN113087240A (en) * | 2021-03-31 | 2021-07-09 | 国网山东省电力公司电力科学研究院 | Treatment system for oily wastewater of direct current converter station and application method |
| CN114920420A (en) * | 2022-04-28 | 2022-08-19 | 东南大学 | Moving bed biofilm reactor for treating distributed rural domestic sewage |
-
2016
- 2016-11-03 CN CN201621178765.5U patent/CN206308161U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569749A (en) * | 2020-11-20 | 2021-03-30 | 恩宜瑞(江苏)环境发展有限公司 | Device for pretreating oil-containing waste gas |
| CN113087240A (en) * | 2021-03-31 | 2021-07-09 | 国网山东省电力公司电力科学研究院 | Treatment system for oily wastewater of direct current converter station and application method |
| CN114920420A (en) * | 2022-04-28 | 2022-08-19 | 东南大学 | Moving bed biofilm reactor for treating distributed rural domestic sewage |
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