CN108503149A - A kind of seawater dirty oil treatment device and method - Google Patents
A kind of seawater dirty oil treatment device and method Download PDFInfo
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- CN108503149A CN108503149A CN201810553154.1A CN201810553154A CN108503149A CN 108503149 A CN108503149 A CN 108503149A CN 201810553154 A CN201810553154 A CN 201810553154A CN 108503149 A CN108503149 A CN 108503149A
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- flotation column
- oil
- seawater
- selective absorption
- agitator
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- 239000013535 sea water Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005188 flotation Methods 0.000 claims abstract description 86
- 238000010521 absorption reaction Methods 0.000 claims abstract description 47
- 230000015556 catabolic process Effects 0.000 claims abstract description 19
- 238000006731 degradation reaction Methods 0.000 claims abstract description 19
- 230000003139 buffering effect Effects 0.000 claims abstract description 18
- 239000003921 oil Substances 0.000 claims description 88
- 241000894006 Bacteria Species 0.000 claims description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- 239000003876 biosurfactant Substances 0.000 claims description 17
- 229920005594 polymer fiber Polymers 0.000 claims description 15
- 229920002101 Chitin Polymers 0.000 claims description 14
- 230000001580 bacterial effect Effects 0.000 claims description 14
- 230000000813 microbial effect Effects 0.000 claims description 14
- 239000004484 Briquette Substances 0.000 claims description 13
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 12
- 239000002817 coal dust Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 11
- 235000015097 nutrients Nutrition 0.000 claims description 11
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims description 10
- 229930195725 Mannitol Natural products 0.000 claims description 10
- 239000000594 mannitol Substances 0.000 claims description 10
- 235000010355 mannitol Nutrition 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 238000010926 purge Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 239000010865 sewage Substances 0.000 claims description 8
- 239000010802 sludge Substances 0.000 claims description 8
- 239000003209 petroleum derivative Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 238000006065 biodegradation reaction Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 5
- 229920000053 polysorbate 80 Polymers 0.000 claims description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 4
- 239000000872 buffer Substances 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000004513 sizing Methods 0.000 claims description 4
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 239000012498 ultrapure water Substances 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- 239000007836 KH2PO4 Substances 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 2
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 2
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 2
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims 7
- 238000004821 distillation Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 9
- 239000000243 solution Substances 0.000 description 25
- 239000002351 wastewater Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000007667 floating Methods 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012644 addition polymerization Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000002068 microbial inoculum Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000009700 powder processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F2103/08—Seawater, e.g. for desalination
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
Abstract
The present invention relates to a kind of seawater dirty oil treatment devices, and the method for carrying out seawater sump oil processing using the equipment.The device includes agglomerated air floatation flotation column, buffering agitator, selective absorption flotation column, rectifier unit, biodegradable pond and filter.The gentle pipeline connection between rushing agitator of the lower output end of agglomerated air floatation flotation column, pipeline connects between buffering the outlet and selective absorption flotation column of agitator, pipeline connects between the lower output end and rectifier unit of selective absorption flotation column, pipeline connects between the upper output end and filter of selective absorption flotation column, pipeline connects between the tower top of rectifier unit and biodegradable pond, and pipeline connects between the bottom of tower and agglomerated air floatation flotation column of rectifier unit.The present invention so as to high efficient green handles seawater sump oil by being combined with biological degradation method flotation technology.
Description
Technical field
The present invention relates to oily waste water treatment technical fields, and in particular to a kind of seawater dirty oil treatment device, and utilize
The method that the equipment carries out seawater sump oil processing.
Background technology
With the sustained and rapid development of China's economy, the interdependency of oil is continuously improved.Sea-freight is China's oil import
Main channel, in addition the factors such as exploitation of offshore oil, cause the oil pollution of ocean increasingly severe, the environment of ocean is protected
Shield is just becoming the focus of countries in the world.
There are many seawater sump oil treatment process, but due to seawater sump oil complicated component, oil content and tax in the seawater
It deposits that morphological differences is very big, is handled with single method often ineffective, discharge or re-injection requirement is not achieved.In practical application
In, to reach good treatment effect, several method need to be combined, form multilevel processing technology.
Flotation water purification technology is a kind of processing oily wastewater deeply researched and developed with constantly promoted and applied both at home and abroad at present
New technology.Flotation water purification is exactly that air or other gases are passed through in water and generate micro air bubble, the small suspension of some in water
Oil droplet and solid particle are adhered on bubble, and relative volume increases, and relative density reduces, and can together float with bubble
Dross is formed to the water surface, to realize a kind of new sewage water treatment method of solid and liquid separation.Floatation is as sewage disposal work
Skill has successfully used for many years in other industry, and in recent years due to its technologic improvement, the effect for handling oily wastewater is big
It is big to improve.Currently, flotation technology, which mostly uses greatly single flotation column, carries out clean water treatment, when processing, is also not bound with other water purification skills
Art, the treatment effect of oily wastewater achieve the effect that very ideal not yet.
Invention content
It is carried out technical problem to be solved by the invention is to provide a kind of seawater dirty oil treatment device and using the equipment
The method of seawater sump oil processing so as to high efficient green handles sea by being combined with biological degradation method flotation technology
Water sump oil.
In order to solve the above technical problems, the present invention uses following technical scheme：
On the one hand, the present invention provides a kind of seawater dirty oil treatment device.The equipment includes agglomerated air floatation flotation column, buffers and stir
Mix bucket, selective absorption flotation column, rectifier unit, biodegradable pond, back purge system and filter.The agglomerated air floatation flotation
The lower output end of column is gentle rush agitator between pipeline connect, the outlet of the buffering agitator and selective absorption flotation column it
Between pipeline connect, pipeline connects between the lower output end and rectifier unit of the selective absorption flotation column, and selective absorption is floating
Pipeline between the upper output end of column and filter is selected to connect, pipeline connects between the tower top of the rectifier unit and biodegradable pond
It connects, pipeline connects between the bottom of tower and agglomerated air floatation flotation column of rectifier unit, the outlet backwash in the biodegradation pond
The entrance of device.
Further, which is additionally provided with agitator of sizing mixing, the outlet of the agitator of sizing mixing with it is slow
Pipeline connects between rushing agitator.
Further, which is additionally provided with oil-containing briquette pond, the entrance and mistake in oil-containing briquette pond
The sludge outlet of filter is connected to.
Further, on the pipeline between the buffering agitator and selective absorption flotation column and selective absorption is floating
It selects and is both provided with elevator pump between column and filter on pipeline.
Preferably, the agglomerated air floatation flotation column and selective absorption flotation column are all made of eddy flow-static microbubble floatation column.
Preferably, the filter uses flame filter press.
On the other hand, the present invention also provides a kind of methods carrying out seawater sump oil processing using above equipment.This method is such as
Under：
To the processing of agglomerated air floatation flotation column be passed through by the seawater of oil pollution, then by output end under agglomerated air floatation flotation column
Gravity flow enters buffering agitator, buffers in agitator and is passed through coal dust to adsorb most of oil emulsion and small particle suspended matter, then
Coal dust after further removing sump oil, suspended matter and absorption sump oil is entered back into selective absorption flotation column；Selective absorption is floating
The water outlet of output end under column is selected to enter rectifier unit separation, the tower top water outlet obtained after rectifying separation enters biodegradable pond and carries out
Microbial degradation is finally purified by back purge system, to output high purity water；Output end on selective absorption flotation column
Out treated, and sewage is then passed through filter filtering.
Technique involved by the above method has recycled crude oil to the greatest extent first with agglomerated air floatation flotation column, processing
The oil content in water substantially reduces afterwards, to reduce the load of selective absorption floatation process, reduces coal dust usage amount；Profit
It is completed by carrier of coal powder to the fine fraction oil content of oil extraction-generated waste water and the absorption of oil emulsion to containing with selective absorption flotation column
The removal of intractable fine fraction oil content and oil emulsion, makes oily wastewater be finally reached the requirement of re-injection or discharge in oily water.
Wherein, the process conditions when agglomerated air floatation flotation column and selective absorption flotation column are handled are：Flotation column is straight
300~500mm of diameter, height 3000~5000mm, 1~2m for the treatment of capacity3/ h, 3~5 times of internal circulating load, gas holdup 5%~8%, in column
Add coalescent pack.
Preferably, which is：Flotation column diameter 400mm, height 4000mm, treating capacity 1.5m3/ h, internal circulating load 4
Times, gas holdup 6%.
Wherein, be added with microbial bacterial agent in the biodegradable pond, the microbial bacterial agent be using chitin as carrier,
The mixed bacterial for loading biosurfactant bacterium and oil degradation bacteria, pulvis is made after cultivating, being freeze-dried.
Further, the preparation method of the microbial bacterial agent includes the following steps：
1) polymer fiber is immersed in activated sludge, is aerated 24~36h of biofilm, polymer fiber is then put into trickling filter
In, nutrient solution is added into trickling filter, using petroleum hydrocarbon as carbon source, using Tween 80 as surfactant, in 20~22 DEG C of items of room temperature
Under part, 14~16d is continuously cultivated, to form biomembrane on polymer fiber；
2) oil degradation bacteria and biosurfactant-producing microbe that are enriched on biomembrane detached, screened, given birth to
Object surfactant bacterium solution and oil degradation bacterium solution；
3) obtained biosurfactant bacterium solution, oil degradation bacterium solution are mixed 45~55h, mixed bacteria liquid is added
The mass ratio of carrier chitin and mannitol, mixed bacteria liquid, chitin and mannitol is 90~100:1:2~5, continue culture 20
~30h obtains bacterium powder after freeze-dried.
Further, the nutrient solution includes the component of following concentration：0.1~0.3g/L MgSO4, 0.01~
0.03g/L CaCl2, 0.5~2g/L KH2PO4, 0.5~2g/L (NH4)2HPO4, 0.5~2g/L K2(NO3)2, 0.01~
0.1g/L FeCl3, 20~50g/L NaCl.
Preferably, the concentration of component of the nutrient solution is as follows：0.2g/L MgSO4、0.02g/L CaCl2、1g/L
KH2PO4、1g/L(NH4)2HPO4、1g/L K2(NO3)2、0.05g/L FeCl3, 20~50g/L NaCl.
Wherein, the coal dust is introduced into size mixing agitator in size mixing after be delivered to again buffering agitator in.
Wherein, the isolated bottom of tower oily wastewater of the rectifying returns to agglomerated air floatation flotation column and carries out after-treatment.
Wherein, described treated after sewage filtered by filter, and obtained residue collection is in oil-containing briquette pond, most
It is used to make coal briquette afterwards.
Beneficial effects of the present invention are：
1, seawater dirty oil treatment device of the invention is simple in structure, and facility used is few, and input cost is low, by flotation technology with
Biological degradation method combines, and so as to high efficient green handles seawater sump oil.
2, processing unit of the present invention has floatation process, can utmostly increase Oil Recovery.Addition polymerization knot gas in flotation column
Kickboard is conducive to the fine oil droplet of coalescence, increases oil droplet water resistant flow disturbance；The static sorting environment of flotation column is conducive to oil droplet and water
The separation of body.Using selective absorption air-float technology, oil removal efficiency is high.Coal dust is added into the water outlet after agglomerated air floatation to adsorb
Agent, it is ensured that the flotation of microfine oil droplet traps, and improves the efficiency of oil removal by air bubbling.This technique by crude oil and suspended matter synchronize go
It removes, does not generate bed mud.Suspended matter is discharged with crude oil, coal dust adsorbent from flotation column overflow, through further recycling, realizes money
Sourceization utilizes.
3, the present invention has used biodegradation method, same to physics, chemical method to compare, the great advantage having, and
Minimum is influenced caused by human and environment, pollutant can be made to be finally decomposed to carbon dioxide and water, there is no secondary pollutions to ask
Topic, repair process is rapid, and expense is low.Be added with microbial bacterial agent in biodegradable pond, the microbial inoculum using chitin as carrier,
High biosurfactant-producing microbe and high efficient petroleum degrading bacteria are loaded, bacterium powder can be made preferably to float on sea, with seawater table
The pollution oil in face is in close contact, and improves the removal rate of oil.The production process safety of bacterium powder, application method is simple, and
To environment non-secondary pollution.
Description of the drawings
Fig. 1 is the connection diagram of the seawater dirty oil treatment device of the present invention.
Figure label is：1, agglomerated air floatation flotation column；2, agitator is buffered；3, elevator pump；4, selective absorption flotation column；
5, it sizes mixing agitator；6, rectifier unit；7, biodegradable pond；8, back purge system；9, filter；10, oil-containing briquette pond.
Specific implementation mode
The description and interpretation present invention With reference to embodiment.
As shown in Figure 1, the seawater dirty oil treatment device of the present embodiment, including agglomerated air floatation flotation column 1, buffering agitator 2,
Selective absorption flotation column 4, rectifier unit 6, biodegradable pond 7 and filter 9, the lower output end of agglomerated air floatation flotation column 1 and
Pipeline connects between buffering agitator 2, and pipeline connects between buffering the outlet and selective absorption flotation column 4 of agitator 2, selection
Property absorption flotation column 4 lower output end and rectifier unit 6 between pipeline connect, the upper output end of selective absorption flotation column 4 and
Pipeline connects between filter 9, and pipeline connects between the tower top of rectifier unit 6 and biodegradable pond 7, the bottom of tower of rectifier unit 6
Pipeline is connect between agglomerated air floatation flotation column 1.
The seawater dirty oil treatment device is additionally provided with agitator 5 of sizing mixing, back purge system 8, oil-containing briquette pond 10 and Liang Tai and carries
Rise pump 3.Wherein, size mixing agitator 5 outlet and buffering agitator 2 between pipeline connect；The entrance of back purge system 8 and biology
Pipeline connects between the outlet of degraded pond 7；Oil-containing briquette pond 10 is connected to the sludge outlet of filter 9；Two elevator pumps 3 then divide
It is not set on the pipeline between buffering agitator 2 and selective absorption flotation column 4 and selective absorption flotation column 4 and mistake
Between filter 9 on pipeline.Wherein, it is floating to be all made of eddy flow-state micro-bubble for agglomerated air floatation flotation column 1 and selective absorption flotation column 4
Select column；Filter 9 then uses flame filter press.
Carrying out the step of seawater sump oil is handled using the equipment is：
First will agglomerated air floatation flotation column be passed through by the seawater of oil pollution, then certainly by output end under agglomerated air floatation flotation column
Stream enters buffering agitator, buffers in agitator and is passed through coal dust to adsorb most of oil emulsion and small particle suspended matter, then again
Into further removed in selective absorption flotation column sump oil, suspended matter and absorption sump oil after coal dust；Selective absorption flotation
The water outlet of output end enters rectifier unit separation under column, and the tower top water outlet obtained after rectifying separation carries out micro- into biodegradable pond
Biodegradation is finally purified by back purge system, to output high purity water；Output is brought out on selective absorption flotation column
Treated, and sewage is then passed through filter filtering.
Wherein, the coal dust is introduced into size mixing agitator in size mixing after be delivered to again buffering agitator in.The rectifying point
From obtained bottom of tower oily wastewater, returns to agglomerated air floatation flotation column and carry out after-treatment.It is described that treated that sewage passes through filtering
After machine filtering, obtained residue collection is eventually used for making coal briquette in oil-containing briquette pond.
Wherein, be added with microbial bacterial agent in the biodegradable pond, the microbial bacterial agent be using chitin as carrier,
Pulvis is made after cultivating, being freeze-dried in the mixed bacterial for loading high biosurfactant-producing microbe and high efficient petroleum degrading bacteria.
For the preparation of floatation process and microbial bacterial agent, the present invention also provides several specific implementations as follows
Example.
Embodiment 1
Process conditions when agglomerated air floatation flotation column and selective absorption flotation column are handled are：Flotation column diameter 400mm, height
Spend 4000mm, treating capacity 1.5m3/ h, 4 times of internal circulating load, gas holdup 6%, column is interior to add coalescent pack.
The step of preparation method of microbial bacterial agent is：1) polymer fiber is immersed in activated sludge, is aerated biofilm 30h,
Then polymer fiber is put into trickling filter, nutrient solution is added into trickling filter, using petroleum hydrocarbon as carbon source, using Tween 80 as surface
Activating agent continuously cultivates 15d, to form biomembrane on polymer fiber under the conditions of 21 DEG C of room temperature；2) to being enriched on biomembrane
Oil degradation bacteria and biosurfactant-producing microbe detached, screened, obtain biosurfactant bacterium solution and oil drop
Solve bacterium solution；3) obtained biosurfactant bacterium solution, oil degradation bacterium solution are mixed 50h, carrier is added in mixed bacteria liquid
The mass ratio of chitin and mannitol, mixed bacteria liquid, chitin and mannitol is 95:1:3, continue culture for 24 hours, it is freeze-dried
After obtain bacterium powder.
Wherein, the component of nutrient solution is a concentration of：0.2g/L MgSO4、0.02g/L CaCl2、1g/L KH2PO4、1g/L
(NH4)2HPO4、1g/L K2(NO3)2、0.05g/L FeCl3、30g/L NaCl。
Using bacterium powder processing simulation oil pollution seawater made from the present embodiment, after 3 days, initial concentration 1700mg/L,
Salinity is that the removal rate of total petroleum hydrocarbon in 3%, simulated seawater reaches 95% or more, and the total petroleum hydrocarbon concentration in seawater is less than《Sea
Foreign oil development industry oily wastewater discharge standard》In primary standard.
Embodiment 2
Process conditions when agglomerated air floatation flotation column and selective absorption flotation column are handled are：Flotation column diameter 300mm, height
Spend 5000mm, treating capacity 1m3/ h, 5 times of internal circulating load, gas holdup 5%, column is interior to add coalescent pack.
The step of preparation method of microbial bacterial agent is：1) polymer fiber is immersed in activated sludge, is aerated biofilm 36h,
Then polymer fiber is put into trickling filter, nutrient solution is added into trickling filter, using petroleum hydrocarbon as carbon source, using Tween 80 as surface
Activating agent continuously cultivates 16d, to form biomembrane on polymer fiber under the conditions of 20 DEG C of room temperature；2) to being enriched on biomembrane
Oil degradation bacteria and biosurfactant-producing microbe detached, screened, obtain biosurfactant bacterium solution and oil drop
Solve bacterium solution；3) obtained biosurfactant bacterium solution, oil degradation bacterium solution are mixed 45h, carrier is added in mixed bacteria liquid
The mass ratio of chitin and mannitol, mixed bacteria liquid, chitin and mannitol is 100:1:2, continue to cultivate 30h, it is chilled dry
Bacterium powder is obtained after dry.
Wherein, the component of nutrient solution is a concentration of：0.1g/L MgSO4、0.03g/L CaCl2、0.5g/L KH2PO4、2g/
L(NH4)2HPO4、0.5g/L K2(NO3)2、0.1g/L FeCl3、20g/L NaCl。
Embodiment 3
Process conditions when agglomerated air floatation flotation column and selective absorption flotation column are handled are：Flotation column diameter 500mm, height
Spend 3000mm, treating capacity 2m3/ h, 3 times of internal circulating load, gas holdup 8%, column is interior to add coalescent pack.
The step of preparation method of microbial bacterial agent is：1) polymer fiber is immersed in activated sludge, is aerated biofilm for 24 hours,
Then polymer fiber is put into trickling filter, nutrient solution is added into trickling filter, using petroleum hydrocarbon as carbon source, using Tween 80 as surface
Activating agent continuously cultivates 14d, to form biomembrane on polymer fiber under the conditions of 22 DEG C of room temperature；2) to being enriched on biomembrane
Oil degradation bacteria and biosurfactant-producing microbe detached, screened, obtain biosurfactant bacterium solution and oil drop
Solve bacterium solution；3) obtained biosurfactant bacterium solution, oil degradation bacterium solution are mixed 55h, carrier is added in mixed bacteria liquid
The mass ratio of chitin and mannitol, mixed bacteria liquid, chitin and mannitol is 90:1:5, continue to cultivate 20h, it is freeze-dried
After obtain bacterium powder.
Wherein, the component of nutrient solution is a concentration of：0.3g/L MgSO4、0.01g/L CaCl2、2g/L KH2PO4、0.5g/
L(NH4)2HPO4、2g/L K2(NO3)2、0.01g/L FeCl3、50g/L NaCl。
Claims (10)
1. a kind of seawater dirty oil treatment device, including agglomerated air floatation flotation column, buffering agitator, selective absorption flotation column, essence
Distillation unit, biodegradable pond, back purge system and filter, it is characterised in that：The lower output end of the agglomerated air floatation flotation column
Gentle pipeline connection between rushing agitator, pipeline connects between the outlet and selective absorption flotation column of the buffering agitator,
Pipeline connects between the lower output end and rectifier unit of the selective absorption flotation column, the upper output of selective absorption flotation column
Pipeline connects between end and filter, and pipeline connects between the tower top of the rectifier unit and biodegradable pond, rectifier unit
Pipeline connects between bottom of tower and agglomerated air floatation flotation column, the entrance of the outlet back purge system in the biodegradation pond.
2. seawater dirty oil treatment device according to claim 1, it is characterised in that：The seawater dirty oil treatment device is also set
It sizes mixing agitator and oil-containing briquette pond, pipeline connects between the outlet and buffering agitator of the agitator of sizing mixing, described to contain
The entrance in oily briquette pond is connected to the sludge outlet of filter；Pipe between the buffering agitator and selective absorption flotation column
Between road and selective absorption flotation column and filter elevator pump is both provided on pipeline.
3. seawater dirty oil treatment device according to claim 1, it is characterised in that：The agglomerated air floatation flotation column and selection
Property absorption flotation column be all made of eddy flow-static microbubble floatation column.
4. a kind of seawater sump oil processing method, it is characterised in that：It will be passed through at agglomerated air floatation flotation column by the seawater of oil pollution
Then reason enters buffering agitator by output end gravity flow under agglomerated air floatation flotation column, buffers in agitator and be passed through coal dust to adsorb
Most of oil emulsion and small particle suspended matter, then enter back into and further remove sump oil, suspended matter in selective absorption flotation column
With the coal dust after absorption sump oil；The water outlet of output end enters rectifier unit separation under selective absorption flotation column, after rectifying separation
Obtained tower top water outlet enters biodegradable pond and carries out microbial degradation, is finally purified by back purge system, to produce
Go out high purity water；Output end out treated sewage is then passed through filter filtering on selective absorption flotation column.
5. seawater sump oil processing method according to claim 4, it is characterised in that：The agglomerated air floatation flotation column and selection
Property absorption flotation column processing when process conditions be：300~500mm of flotation column diameter, 3000~5000mm of height, treating capacity 1
~2m3/ h, 3~5 times of internal circulating load, gas holdup 5%~8%, column is interior to add coalescent pack.
6. seawater sump oil processing method according to claim 4, it is characterised in that：Added with micro- in the biodegradation pond
Bacteria agent, the microbial bacterial agent are to load the mixed of biosurfactant bacterium and oil degradation bacteria using chitin as carrier
Pulvis is made after cultivating, being freeze-dried in combined bacteria group.
7. seawater sump oil processing method according to claim 6, which is characterized in that the preparation method of the microbial bacterial agent
Include the following steps：
1) polymer fiber is immersed in activated sludge, is aerated 24~36h of biofilm, then polymer fiber is put into trickling filter, to
Nutrient solution is added in trickling filter, using petroleum hydrocarbon as carbon source, using Tween 80 as surfactant, under the conditions of 20~22 DEG C of room temperature,
14~16d of continuous culture, to form biomembrane on polymer fiber；
2) oil degradation bacteria and biosurfactant-producing microbe that are enriched on biomembrane detached, screened, obtain biological table
Face activating agent bacterium solution and oil degradation bacterium solution；
3) obtained biosurfactant bacterium solution, oil degradation bacterium solution are mixed 45~55h, carrier is added in mixed bacteria liquid
The mass ratio of chitin and mannitol, mixed bacteria liquid, chitin and mannitol is 90~100:1:2~5, continue culture 20~
30h obtains bacterium powder after freeze-dried.
8. seawater sump oil processing method according to claim 7, which is characterized in that the nutrient solution includes following concentration
Component：0.1~0.3g/L MgSO4, 0.01~0.03g/L CaCl2, 0.5~2g/L KH2PO4, 0.5~2g/L (NH4)2HPO4, 0.5~2g/L K2(NO3)2, 0.01~0.1g/L FeCl3, 20~50g/L NaCl.
9. seawater sump oil processing method according to claim 4, it is characterised in that：The isolated bottom of tower of the rectifying contains
Oily water returns to agglomerated air floatation flotation column and carries out after-treatment.
10. seawater sump oil processing method according to claim 4, it is characterised in that：It is described that treated that sewage passed through
After filter filtering, obtained residue collection is eventually used for making coal briquette in oil-containing briquette pond.
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