CN206127063U - Petrochemical sewage degree of depth processing system - Google Patents
Petrochemical sewage degree of depth processing system Download PDFInfo
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- CN206127063U CN206127063U CN201621032934.4U CN201621032934U CN206127063U CN 206127063 U CN206127063 U CN 206127063U CN 201621032934 U CN201621032934 U CN 201621032934U CN 206127063 U CN206127063 U CN 206127063U
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Abstract
The utility model discloses a petrochemical sewage degree of depth processing system, the integrative equipment of multi -media filter, ozone catalytic oxidation tower, MBBR reactor, elevator pump, air floatation precipitation including connecting gradually is equipped with the filter material in the multi -media filter, be equipped with the catalyst in the ozone catalytic oxidation tower, and MBBR reactor is equipped with biological carrier, and multi -media filter is equipped with the import that of the smelting factory second grade discharged out water, and the integrative equipment of air floatation precipitation is equipped with and discharges or the reuse water interface. Treatment effect stability, low cost, easy management easy and simple to handle.
Description
Technical field
This utility model is related to a kind of sewage disposal technology, more particularly to a kind of petrochemical effluent advanced treatment system.
Background technology
In recent years, China's rapid economic development, petroleum fuel and petroleum chemicals demand and supply sustainable growth, but with stone
The in poor quality being continuously increased with crude quality of the industrial crude runs of oil refining, causes oil refining industry Sewage Water Emissions
Amount also remains high, and water pollution problems is obvious.The more flourishing Liaohe River of petroleum refining industry, Haihe River, Pearl River Delta, Bohai and Yellow Seas,
The water pollution control in North Sea coastal waters also tends to urgent.Country issued and was specifically designed for petroleum refining industry on July 1st, 2015
Pollutant emission standard GB 31570-2015, the sewage disposal to petroleum refining industry proposes new higher requirement.And
And, enterprise's purchase water rate and charges for disposing pollutants start to become the direction of cost efficiency, under these circumstances, by enterprise's externally discharged waste water Jing depth
Treatment for reuse, becomes creation environmental benefit, the important means of economic benefit.
Petroleum refining process is that crude oil is made into all kinds of oil products through physical separation or chemical reaction process process,
Water filling, stripping, condensation, washing and oil tank in the oil refining course of processing is cut water etc. and produces all kinds of sewage of different nature.Have
Sewage quantity is big, complicated component, be difficult to the features such as processing.
At present, domestic Waste water treatment step is mainly the coagulations such as oil removal, air supporting and biochemical two stage treatment.According to system
Meter, the sewage of domestic typical petroleum refining enterprise is discharged more than after typical materialization coagulation and biological two stage treatment
COD, ammonia nitrogen and petroleum-type can be controlled substantially in the range of 30-110mg/l, 0.5-30mg/l and 0.3-6mg/l, most of sewage
Distance reaches reuse target and still needs to further advanced treating.
In prior art, study and have membrane separation process, absorption method, ozone oxidation using more advanced treatment of wastewater technology
The techniques such as method, the bioremediation commonly used in advanced treating has membrane bioreactor (MBR), BAF (BAF)
With carrier fluidized bed (MBBR) etc..Required according to reusing sewage and water quality characteristicses, usually select one of the above or several technologies connection
Conjunction is used.
Although membrane separation process and absorption method can remove a part of larger molecular organicses, the method major part is by thing
Logos organics removal, does not produce change to the structure of Organic substance, and the biodegradability of Organic substance improves limited, is unfavorable for rear end
Depth is carried out a biological disposal upon.Management of the membrane bioreactor to film is more complicated, and operation control difficulty is larger；BAF is in denitrogenation
The effect of aspect is more carrier fluidized bed low.
The content of the invention
The purpose of this utility model is to provide that a kind for the treatment of effect is stable, with low cost, the stone being easily managed easy to operate
Oiling work advanced sewage treatment system.
The purpose of this utility model is achieved through the following technical solutions：
Petrochemical effluent advanced treatment system of the present utility model, including the more medium filter, ozone that are sequentially connected
Catalysis oxidizing tower, MBBR reactors, elevator pump, air supporting precipitation equipment integrating, are provided with filtrate in the more medium filter, described
Catalyst is provided with catalytic ozonation tower, bio-carrier is provided with the MBBR reactors, the more medium filter is provided with
The import of two grades of discharge water outlets of refinery factory, the air supporting precipitation equipment integrating is provided with discharge or recycle-water interface.
The technical scheme provided by above-mentioned this utility model is as can be seen that the petrochemical effluent depth of this utility model offer
Degree processing system, treatment effect is stable, with low cost, easy to operate be easily managed.
Description of the drawings
The schematic flow sheet of the petrochemical effluent advanced treatment system that Fig. 1 is provided for this utility model embodiment.
In figure：
1- more medium filters, 2- filtrates, 3- catalytic ozonation towers, 4- catalyst, 5-MBBR reactors, 6- is biological to be carried
Body, 7- elevator pumps, 8- air supportings precipitation equipment integrating.
Specific embodiment
This utility model embodiment will be described in further detail below.
Petrochemical effluent advanced treatment system of the present utility model, its preferably specific embodiment is：
Including more medium filter, catalytic ozonation tower, MBBR reactors, elevator pump, the air supporting precipitation being sequentially connected
Equipment integrating, is provided with filtrate in the more medium filter, catalyst is provided with the catalytic ozonation tower, and the MBBR is anti-
Answer and be provided with device bio-carrier, the more medium filter is provided with the import of two grades of discharge water outlets of refinery factory, the air supporting precipitation
Equipment integrating is provided with discharge or recycle-water interface.
The import of two grades of discharge water outlets of the refinery factory described to be situated between located at the top of filtrate in the more medium filter more
The outlet of mass filter is located at the bottom of filtrate.
The water inlet of the catalytic ozonation tower is located at the top of catalyst, outlet located at the lower section of catalyst.
The water inlet of the MBBR reactors is located at the sidepiece of MBBR reactors located at the top of bio-carrier, outlet.
Petrochemical effluent advanced treatment system of the present utility model, combines MBBR gentle using multiphase catalytic ozonation
Floating depositing technology is combined, and at short notice difficult degradation organic component in the biological treatment water outlet of refinery sewage second-level can be carried out into chemistry
It is modified, Partial digestion or simple small molecule is converted into, Biodegradability of Wastewater is improved, then remnants in water are had using MBBR techniques
Machine thing carries out biodegradation, and air supporting depositing technology further removes the colloidal substance in sewage, realizes purification of water quality.The technology is smelly
Coefficient of oxygen utilization is high, strong shock resistance, runs processing cost relative moderate, in petrochemical effluent advanced treatment and reclamation field tool
There is obvious advantage.
This utility model for oil refining advanced treatment of wastewater requirement, be a kind for the treatment of effect it is stable, with low cost,
The processing system being easily managed easy to operate.
This utility model is realized to oil refining advanced treatment of wastewater by following processing system：
The system includes more medium filter, catalytic ozonation, the gentle floating depositing technology of MBBR techniques；
Oil refining sewage enters more medium filter through the water outlet of secondary biochemical treatment, and suspended material is filtered in water
After the retention of device filtrate, water outlet enters catalytic ozonation tower.Oxidizing tower is by the way of the water inlet bottom water outlet of top；It is built-in in tower
There is solid catalyst filler；Ozone disperser is housed under filler supporting layer；Ozone originally ozonator, after metering
Ozone disperser and waste water；On the one hand catalyst adsorbs Organic substance, on the other hand can the strong oxygen of catalysis ozone molecule release
The free radical of the property changed, the absorption of such organic pollutant and oxidation synergism, it is possible to obtain more preferable catalytic ozonation
Effect.Activated carbon or aluminium sesquioxide are adopted for the catalyst of carrier loaded transition metal；In ozone oxidation tower, employing it is smelly
The control of oxygen dosage is 30～60min in the ozone oxidation tower time of staying in 10-40mg/l, sewage.
Sewage after catalytic ozonation, hardly degraded organic substance is modified, and biodegradability is improved, into MBBR reactions
Pond.The characteristics of MBBR is to fill the advantage that part make use of activated sludge process, and traditional activated sludge process and fixed type biological are overcome again
The shortcoming of embrane method, for refinery sewage, because the material of difficult degradation in its waste water is more, needs further denitrogenation, needs life
The sludge age of thing system is longer, therefore, biomembrance process is compared with activated sludge process process oil refining wastewater preferably.Throw in MBBR reaction tanks
Plus bio-carrier, it is reactor oxygenation that bottom of pond arranges aerating system.Adding than control 15～50% for bio-carrier, goes out in pond
Dissolved oxygen is controlled in 2～5mg/L at water.
The water outlet of Jing Membrane Bioreactor for Wastewater Treatment enters air supporting depositing technology.The technique adopts integration apparatus, sewage to exist
Dosing coagulation and mud-water separation are completed in integration apparatus.Using inorganic flocculating agent aluminium polychlorid (PAC) and organic polymer
Flocculant polyacrylamide (PAM) is used cooperatively, by the organic matter flocculation in colloidal state in front-end process water outlet into bulky grain
Alumen ustum, then removed by air supporting and precipitation process.The chemical feeding quantity of PAC is 0.1 ‰～0.5 ‰, and concentration is 1 ‰ PAM dosages
For 0.1～0.3L/ ton sewage.
Specific embodiment：
It is that two stage biological processes water outlet in oil refining factory that embodiment processes sewage, and technological process is with reference to Fig. 1, the method bag
Include more medium filter 1, catalytic ozonation tower 3, MBBR reactors 5 and air floatation precipitation device 8；Throw in more medium filter
Plus catalyst 4 is added in filtrate 2, catalytic ozonation tower, bio-carrier 6. is added in MBBR reactors
Secondary biochemical treatment water outlet enters more medium filter, and after suspended material in water is filtered, sewage is urged into ozone
Change oxidizing tower, the ozone produced by ozonator mixes in the gas disperser of ozone oxidation tower bottom with water inlet, in tower
Contacting with catalyst in vivo carries out phase reaction, and Organic substance is in the presence of the strong oxidizing property group that ozone and catalytic reaction are obtained
By chemical oxidation.Ozone dosage is controlled for 10～40mg/L.
The water outlet of catalytic ozonation tower enters MBBR reaction tanks.The biodegradability of organic matter of Jing ozone oxidation is improved,
Further it is degraded in the presence of the biomembrane of filler in MBBR reaction tanks, remaining ammonia nitrogen here also can be nitrified in sewage
Reaction, the anoxic zone of biological film inner layer can also occur the effect of denitrification denitrogenation.In MBBR reaction tanks, 15～35 DEG C of temperature,
It is 2.5～5mg/L that pH is 7～8.5, dissolved oxygen.
The water outlet of MBBR enters air supporting sedimentation tank, and here adds flocculant, is respectively PAC and is configured to mass concentration and is
1 ‰ polyacrylamide solution.It is 0.1L/ ton water that PAC dosages are the dosage of 0.1 ‰～0.3 ‰, PAM solution, in control
When PAC is added in addition to coagulation effect is ensured, it is also noted that coagulation water outlet pH is in the range of 6～9 for control.Mix after flocculation stirring
Close liquid carries out mud-water separation in air supporting settling zone, by air supporting and precipitation process, it is ensured that go out clarification of water.
The sewage in the example, water outlet COD≤40mg/L, ammonia nitrogen are processed through technical scheme provided by the utility model
≤ 5mg/L, petroleum-type≤0.5mg/L, float≤30mg/l.The clearance of COD and ammonia nitrogen respectively reach more than 80% and
More than 60%.
Relative to other technologies, this utility model technological process is simple, and more medium filter is used as catalytic ozonation tower
Pretreating process, remove secondary biochemical treatment water outlet in float；Catalytic ozonation improves ozone utilization rate, improves dirty
Water biodegradability；MBBR can integrate oxidation of coal, denitrogenation；Air supporting depositing technology is further removed in sewage by coagulation
The pollutant of colloid, remove suspended material, and outlet effect is good, and operating cost is cheap.
Tests prove that, be used for based on the advanced sewage treatment system of multi-medium filtering-catalytic ozonation-MBBR
The advanced treating of petrochemical industry class sewage, can be reduced to water outlet COD below 30mg/l, ammonia nitrogen and be reduced to below 5mg/l, stone
Oils is reduced to below 0.5mg/l, and the recycle-water index of circulating water system can be reached substantially.
Petrochemical industry class is used for based on the advanced sewage treatment system of multi-medium filtering-catalytic ozonation-MBBR
The advanced treating of sewage.It is characterized in that the secondary biochemical treatment water outlet of petroleum chemical industry enters more medium filter, pass through
Multimedium media filtration；Outlet pipe after filtration is connected with catalytic ozonation tower water inlet, adds in catalytic ozonation tower
Activated carbon or with the solid catalyst filler that aluminium sesquioxide is carrier loaded transition metal, has ozone in ozone oxidation tower bottom
Disperser, adding a certain amount of ozone carries out catalytic oxidation；Ozone oxidation tower outlet pipe is connected with MBBR water inlet pipes,
Bio-carrier is added in MBBR, there is aerator in MBBR；The water outlet of Jing MBBR biochemical treatments is promoted to air supporting precipitation one by pump
In body makeup is put, through coagulating sedimentation air-float technology, effluent reuse discharge.
The above, only this utility model preferably specific embodiment, but protection domain of the present utility model is not
This is confined to, any those familiar with the art can readily occur in the technical scope that this utility model is disclosed
Change or replacement, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should
It is defined by the protection domain of claims.
Claims (4)
1. a kind of petrochemical effluent advanced treatment system, it is characterised in that including the more medium filter, ozone that are sequentially connected
Catalysis oxidizing tower, MBBR reactors, elevator pump, air supporting precipitation equipment integrating, are provided with filtrate in the more medium filter, described
Catalyst is provided with catalytic ozonation tower, bio-carrier is provided with the MBBR reactors, the more medium filter is provided with
The import of two grades of discharge water outlets of refinery factory, the air supporting precipitation equipment integrating is provided with discharge or recycle-water interface.
2. petrochemical effluent advanced treatment system according to claim 1, it is characterised in that two grades of rows of the refinery factory
The import of water is released located at the top of filtrate in the more medium filter, the outlet of the more medium filter is located at filtrate
Bottom.
3. petrochemical effluent advanced treatment system according to claim 2, it is characterised in that the catalytic ozonation
The water inlet of tower is located at the top of catalyst, outlet located at the lower section of catalyst.
4. petrochemical effluent advanced treatment system according to claim 3, it is characterised in that the MBBR reactors
Water inlet is located at the sidepiece of MBBR reactors located at the top of bio-carrier, outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032934.4U CN206127063U (en) | 2016-08-31 | 2016-08-31 | Petrochemical sewage degree of depth processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032934.4U CN206127063U (en) | 2016-08-31 | 2016-08-31 | Petrochemical sewage degree of depth processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206127063U true CN206127063U (en) | 2017-04-26 |
Family
ID=58568266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621032934.4U Expired - Fee Related CN206127063U (en) | 2016-08-31 | 2016-08-31 | Petrochemical sewage degree of depth processing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206127063U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108033636A (en) * | 2017-12-15 | 2018-05-15 | 中海油能源发展股份有限公司 | A kind of product oil storage field sewage disposal system and its sewage water treatment method |
| CN111875096A (en) * | 2020-07-23 | 2020-11-03 | 安徽辰创工程技术开发有限公司 | Be used for high-efficient environmental protection denitrogenation of sewage treatment to remove carbon processing apparatus |
| CN112125476A (en) * | 2020-09-25 | 2020-12-25 | 中蓝连海设计研究院有限公司 | Two-stage ozone oxidation-biological contact coupling sewage advanced treatment method and device |
| CN112777858A (en) * | 2020-12-23 | 2021-05-11 | 首创爱华(天津)市政环境工程有限公司 | Ozone catalytic oxidation wastewater treatment method |
| CN114751556A (en) * | 2022-04-26 | 2022-07-15 | 北京化工大学 | Method and device for treating oily wastewater |
-
2016
- 2016-08-31 CN CN201621032934.4U patent/CN206127063U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108033636A (en) * | 2017-12-15 | 2018-05-15 | 中海油能源发展股份有限公司 | A kind of product oil storage field sewage disposal system and its sewage water treatment method |
| CN111875096A (en) * | 2020-07-23 | 2020-11-03 | 安徽辰创工程技术开发有限公司 | Be used for high-efficient environmental protection denitrogenation of sewage treatment to remove carbon processing apparatus |
| CN112125476A (en) * | 2020-09-25 | 2020-12-25 | 中蓝连海设计研究院有限公司 | Two-stage ozone oxidation-biological contact coupling sewage advanced treatment method and device |
| CN112777858A (en) * | 2020-12-23 | 2021-05-11 | 首创爱华(天津)市政环境工程有限公司 | Ozone catalytic oxidation wastewater treatment method |
| CN114751556A (en) * | 2022-04-26 | 2022-07-15 | 北京化工大学 | Method and device for treating oily wastewater |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20190831 |