CN103570196A - Device for removing high-concentration ammonia nitrogen from oil refining wastewater by using surfactant - Google Patents
Device for removing high-concentration ammonia nitrogen from oil refining wastewater by using surfactant Download PDFInfo
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- CN103570196A CN103570196A CN201310564420.8A CN201310564420A CN103570196A CN 103570196 A CN103570196 A CN 103570196A CN 201310564420 A CN201310564420 A CN 201310564420A CN 103570196 A CN103570196 A CN 103570196A
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Abstract
The invention relates to a device for removing high-concentration ammonia nitrogen from oil refining wastewater by using a surfactant, and belongs to the field of sewage treatment. The device consists of a lifting pump (1), an electric control device (2), a stirrer (3), a wastewater tank (4), a filter screen (5), an oil separation tank (6), an oil-water separator (7), an air floatation tank (8), a water passing pipe (9), a bucket grid (10), an MBR (membrane biological reactor) (11), a liquid level meter (12), a membrane component (13), an anoxic tank (14), a chemical liquid tank (15), a water storage column (16) and an air compressor (17), wherein the membrane component is a hollow fiber membrane component, and is high in hydrophilicity and low in yarn breaking rate. According to the device, the production cost is lowered, the wastewater discharge of an oil refining enterprise is reduced, the removal rate of the ammonia nitrogen from the treated wastewater is increased from original 67.8 to 82.4 percent to more than 99.8 percent, and environmental pollution is reduced.
Description
Technical field
The invention discloses in tensio-active agent refinery water and remove ammonia nitrogen in high density device, belong to sewage treatment area.
Background technology
Refinery water is the polluted water of not directly utilizing producing in oil-refining chemical industry production, operational process, the ammonia nitrogen that contains high density in waste water, excessive ammonia nitrogen enters water body will cause body eutrophication, reduce water body ornamental value, and the nitrate of oxidized generation and nitrite also can affect even human health of hydrobiont.
At present, utilize catalyst effect to make Coal Gas Washing Cycling Water mineralized nitrogen become the method for nitrogen to become possibility, for example: Lee fish, the a kind of of description in document " ammonia nitrogen in Co_Bi catalyst wet oxidation degraded percolate " such as Zhang Rong processes high-concentration ammonia nitrogenous wastewater with Co/Bi catalyzer, ammonia is converted into nitrogen discharge, but need to be 125～320 ℃ of high temperature, under high pressure 0.5～2.0MPa condition, just play katalysis, this certainly will cause the huge consumption of the energy, the processing costs bringing is thus too expensive, cannot operation in reality generates.Traditional ammonia still process method is to take water vapour as stripping medium, but needs strong basicity environment simultaneously, and the ammonia nitrogen in waste water is with NH
3form drain in air, easily cause secondary pollution risk, in order to eliminate the secondary pollution that environment is brought, people generally adopt H
2o or dilute sulphuric acid absorb ammonia, but the product that this utilization absorption treatment process obtains is impure, and concentration is too low, there is no marketable value, remains a kind of waste water existing with ammonia nitrogen in high density.
Summary of the invention
The object of the invention is to the deficiency for prior art scheme, provide in tensio-active agent refinery water and removed ammonia nitrogen in high density device, solved in prior art and polluted greatly, cost is high, the problem that ammonia nitrogen removal frank is low.
In order to achieve the above object, concrete technical scheme of the present invention is: in tensio-active agent refinery water, removing ammonia nitrogen in high density device is to consist of lift pump (1), electric control gear (2), agitator (3), wastewater disposal basin (4), filtering net (5), oil trap (6), water-and-oil separator (7), air flotation pool (8), water service pipe (9), basket grid (10), MBR reaction tank (11), liquidometer (12), membrane module (13), anoxic pond (14), spray tank (15), water post (16), air compressor (17); Its structure construction is, oil trap (6) upper strata is filtering net (5), and lower floor is water-and-oil separator (7), is connected with wastewater disposal basin (4), air flotation pool (8); Described agitator (3) is positioned at wastewater disposal basin (4) top; MBR reaction tank (11) left side is basket grid (10), and the right is membrane module (13), and below is provided with liquidometer (12), and top is connected with anoxic pond (14).
Described filtering net (5) is 100-120 order filter screen; Water-and-oil separator (7) is 140-160 order filter screen.
Described basket grid (10) gap is 15-30mm, and crossing grid current speed is 0.6-1.0m/s, every day grid quantity of slag 0.15-0.45m
2.
Described MBR reaction tank (11) pH value is at 6-8, minimum through water yield 31.0m
3/ d.
What described membrane module (13) adopted is hollow fiber film assembly, and membrane pore size is 0.1～0.2 μ m, and film internal diameter is 320～350 μ m, and membranous wall is thick is 40～50 μ m, membrane flux 12-15L/m
2h, working pressure 1.55Mpa.
Described anoxic pond (14) is carried out denitrification denitrogenation, and dissolved oxygen is controlled at 0.2-0.5mg/l, and the time is controlled at 2.0h left and right; Spray tank (15) medicine liquid ingredient is tensio-active agent dioctyl sodium sulfosuccinate.
[0011] principle of work of the present invention is: agitator (3) is positioned at wastewater disposal basin (4) top, even in order to guarantee the water quality of wastewater disposal basin (4), the waste water being stirred is particle screen selecting first in 100-120 order filter screen at filtering net (5), the waste water filtering through filtering net (5) flows into oil trap (6), at water-and-oil separator (7), be effective separating heavy greasy dirt and sewage in 140-160 order filter screen, separating obtained sewage is again by water service pipe (9) process basket grid (10), to cut the remaining solid pollutant that is suspension or levitated state of resistance in order to secondary, in order to avoid stop up MBR reaction tank (11), MBR reaction tank (11) is because of its effective crown_interception, can retain longer microorganism of generation cycle, can realize deep purification of waste water, Simultaneous Nitrification bacterium can fully breed in system, its nitrification effect is obvious, to advanced nitrogen, provide possibility, for ammonia nitrogen removal below provides basis, what membrane module (13) adopted is hollow fiber film assembly, wetting ability is strong, be difficult for fracture of wire, air compressor (17) is to carrying out aeration in MBR reaction tank (11), liquidometer (12) is controlled the size of aeration rate, waste water in processing enters anoxic pond (14) by water service pipe (9), anoxic pond (14) is denitrification ammonia nitrogen removal, dissolved oxygen is controlled at 0.2-0.5mg/l, time is controlled at 2.0h left and right, because anoxic pond (14) is also provided with spray tank (15), spray tank (15) medicine liquid ingredient is tensio-active agent, surfactant component is dioctyl sodium sulfosuccinate, tensio-active agent more efficiently makes the waste water deammoniation nitrogen rate in processing rise to more than 99.8% from 67.8-82.4% in the past.
Significant advantage of the present invention is:
(1) tensio-active agent in spray tank is practical in anoxic pond denitrification ammonia nitrogen removal, efficient;
(2) membrane module adopting is hollow fiber film assembly, and wetting ability is strong, is difficult for fracture of wire;
(3) this device ，Wei oil refining enterprise that saves production cost has reduced the quantity discharged of waste water, has also alleviated the pollution to environment.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention
Wherein: 1 lift pump, 2 electric control gears, 3 agitators, 4 wastewater disposal basins, 5 filtering nets, 6 oil traps, 7 water-and-oil separators, 8 air flotation pools, 9 water service pipes, 10 basket grids, 11MBR reaction tank, 12 liquidometers, 13 membrane modules, 14 anoxic pond, 15 spray tanks, 16 water posts, 17 air compressor.
Embodiment
Below in conjunction with drawings and Examples, technical solution of the present invention is further illustrated.
As shown in Figure 1, the invention provides in tensio-active agent refinery water and remove ammonia nitrogen in high density device, by lift pump (1), electric control gear (2), agitator (3), wastewater disposal basin (4), filtering net (5), oil trap (6), water-and-oil separator (7), air flotation pool (8), water service pipe (9), basket grid (10), MBR reaction tank (11), liquidometer (12), membrane module (13), anoxic pond (14), spray tank (15), water post (16), air compressor (17), formed; Described oil trap (6) upper strata is filtering net (5), and lower floor is water-and-oil separator (7), is connected with wastewater disposal basin (4), air flotation pool (8); Described agitator (3) is positioned at wastewater disposal basin (4) top; Described MBR reaction tank (11) left side is basket grid (10), and the right is membrane module (13), and below is provided with liquidometer (12), and top is connected with anoxic pond (14); Described filtering net (5) is 120 order filter screens; Described water-and-oil separator (7) is 160 order filter screens, and described basket grid (10) gap is 15mm, and crossing grid current speed is 0.6m/s, every day grid quantity of slag 0.25m
2, described MBR reaction tank (11) pH value, 8, sees through water yield 31.0m
3/ d, what described membrane module (13) adopted is hollow fiber film assembly, and membrane pore size is 0.2 μ m, and film internal diameter is 350 μ m, and membranous wall is thick is 50 μ m, membrane flux 15L/m
2h, working pressure 1.55Mpa, described anoxic pond (14) is carried out denitrification denitrogenation, and dissolved oxygen is controlled at 0.5mg/l, and the time is controlled at 2.0h; Described spray tank (15) medicine liquid ingredient is tensio-active agent, and surfactant component is dioctyl sodium sulfosuccinate.
When a kind of tensio-active agent high strength of the present invention dispersion method is processed the use of RE waste water middle and high concentration ammonia nitrogen device, agitator (3) is positioned at wastewater disposal basin (4) top, even in order to guarantee the water quality of wastewater disposal basin (4), the waste water being stirred is particle screen selecting first in 120 order filter screens at filtering net (5), the waste water filtering through filtering net (5) flows into oil trap (6), at water-and-oil separator (7), be effective separating heavy greasy dirt and sewage in 160 order filter screens, separating obtained sewage is again by water service pipe (9) process basket grid (10), to cut the remaining solid pollutant that is suspension or levitated state of resistance in order to secondary, in order to avoid stop up MBR reaction tank (11), MBR reaction tank (11) is because of its effective crown_interception, can retain longer microorganism of generation cycle, can realize deep purification of waste water, Simultaneous Nitrification bacterium can fully breed in system, its nitrification effect is obvious, to advanced nitrogen, provide possibility, for ammonia nitrogen removal below provides basis, what membrane module (13) adopted is hollow fiber film assembly, wetting ability is strong, be difficult for fracture of wire, air compressor (17) is to carrying out aeration in MBR reaction tank (11), liquidometer (12) is controlled the size of aeration rate, waste water in processing enters anoxic pond (14) by water service pipe (9), anoxic pond (14) is denitrification ammonia nitrogen removal, dissolved oxygen is controlled at 0.5mg/l, time is controlled at 2.0h, because anoxic pond (14) is also provided with spray tank (15), spray tank (15) medicine liquid ingredient is tensio-active agent, surfactant component is dioctyl sodium sulfosuccinate, tensio-active agent more efficiently makes the waste water deammoniation nitrogen rate in processing rise to more than 99.8% from 67.8-82.4% in the past.
Above-described the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; do not departing under the prerequisite of structure of the present invention; can also make some distortion and improvement; these also should be considered as protection scope of the present invention, and these can not affect effect of the present invention and practical applicability.
Claims (6)
1. in tensio-active agent refinery water, remove ammonia nitrogen in high density device, it is characterized in that: this device consists of lift pump (1), electric control gear (2), agitator (3), wastewater disposal basin (4), filtering net (5), oil trap (6), water-and-oil separator (7), air flotation pool (8), water service pipe (9), basket grid (10), MBR reaction tank (11), liquidometer (12), membrane module (13), anoxic pond (14), spray tank (15), water post (16), air compressor (17); Oil trap (6) upper strata is filtering net (5), and lower floor is water-and-oil separator (7), is connected with wastewater disposal basin (4), air flotation pool (8); Agitator (3) is positioned at wastewater disposal basin (4) top; MBR reaction tank (11) left side is basket grid (10), and the right is membrane module (13), and below is provided with liquidometer (12), and top is connected with anoxic pond (14).
2. in tensio-active agent refinery water according to claim 1, remove ammonia nitrogen in high density device, it is characterized in that: described filtering net (5) is 100-120 order filter screen; Water-and-oil separator (7) is 140-160 order filter screen.
3. in tensio-active agent refinery water according to claim 1, remove ammonia nitrogen in high density device, it is characterized in that: described basket grid (10) gap is 15-30mm, crossing grid current speed is 0.6-1.0m/s, every day grid quantity of slag 0.15-0.45m
2.
4. in tensio-active agent refinery water according to claim 1, remove ammonia nitrogen in high density device, it is characterized in that: described MBR reaction tank (11) pH value is at 6-8, minimum through water yield 31.0m
3/ d.
5. in tensio-active agent refinery water according to claim 1, remove ammonia nitrogen in high density device, it is characterized in that: what described membrane module (13) adopted is hollow fiber film assembly, membrane pore size is 0.1～0.2 μ m, film internal diameter is 320～350 μ m, membranous wall is thick is 40～50 μ m, membrane flux 12-15L/m
2h, working pressure 1.55Mpa.
6. in tensio-active agent refinery water according to claim 1, remove ammonia nitrogen in high density device, it is characterized in that: described anoxic pond (14) is carried out denitrification denitrogenation, and dissolved oxygen is controlled at 0.2-0.5mg/l, the time is controlled at 2.0h left and right; Spray tank (15) medicine liquid ingredient is tensio-active agent dioctyl sodium sulfosuccinate.
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| CN201310564420.8A CN103570196B (en) | 2013-11-14 | 2013-11-14 | Device for removing high-concentration ammonia nitrogen from oil refining wastewater by using surfactant |
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| CN103570196B CN103570196B (en) | 2015-01-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211215A (en) * | 2014-08-26 | 2014-12-17 | 常州大学 | Device for treating high concentration ammonia nitrogen in metallurgical wastewater by using surface active catalyst |
| CN104211247A (en) * | 2014-08-26 | 2014-12-17 | 常州大学 | Device for processing high-concentration ammonia nitrogen in rare-earth wastewater by using surfactant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102249499A (en) * | 2011-07-13 | 2011-11-23 | 达斯玛环境科技（北京）有限公司 | Method for biochemically treating and discharging refinery wastewater within controlling index of national standard |
| CN102718359A (en) * | 2012-06-13 | 2012-10-10 | 浙江双益环保科技发展有限公司 | MBR (membrane bioreactor)-based system and method for oil refining wastewater biochemical treatment and membrane component cleaning method |
| CN202594915U (en) * | 2012-03-01 | 2012-12-12 | 贵州绿色环保设备工程有限责任公司 | Device for treating high-ammonia nitrogen wastewater |
| CN103030250A (en) * | 2012-12-10 | 2013-04-10 | 中国市政工程华北设计研究总院 | Reinforced-denitrification MBR (membrane bioreactor) sewage treatment method |
-
2013
- 2013-11-14 CN CN201310564420.8A patent/CN103570196B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249499A (en) * | 2011-07-13 | 2011-11-23 | 达斯玛环境科技（北京）有限公司 | Method for biochemically treating and discharging refinery wastewater within controlling index of national standard |
| CN202594915U (en) * | 2012-03-01 | 2012-12-12 | 贵州绿色环保设备工程有限责任公司 | Device for treating high-ammonia nitrogen wastewater |
| CN102718359A (en) * | 2012-06-13 | 2012-10-10 | 浙江双益环保科技发展有限公司 | MBR (membrane bioreactor)-based system and method for oil refining wastewater biochemical treatment and membrane component cleaning method |
| CN103030250A (en) * | 2012-12-10 | 2013-04-10 | 中国市政工程华北设计研究总院 | Reinforced-denitrification MBR (membrane bioreactor) sewage treatment method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211215A (en) * | 2014-08-26 | 2014-12-17 | 常州大学 | Device for treating high concentration ammonia nitrogen in metallurgical wastewater by using surface active catalyst |
| CN104211247A (en) * | 2014-08-26 | 2014-12-17 | 常州大学 | Device for processing high-concentration ammonia nitrogen in rare-earth wastewater by using surfactant |
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| CN103570196B (en) | 2015-01-21 |
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Effective date of registration: 20151118 Address after: 226571, Jiangsu Province, Nantong City, Rugao Province East Chen Chen Zhen community neighborhood committee 10 groups Patentee after: Jiangsu Tuo Bang new material Co., Ltd Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: Changzhou University |
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Effective date of registration: 20191223 Address after: Room 207, main office building, No.118 Longxing Road, Haining Economic Development Zone, Haining City, Jiaxing City, Zhejiang Province Patentee after: Haining Economic Development Industrial Park Development and Construction Co., Ltd Address before: 226571, Jiangsu Province, Nantong City, Rugao Province East Chen Chen Zhen community neighborhood committee 10 groups Patentee before: Jiangsu Tuo Bang new material Co., Ltd |