CN107792992A - A kind of combination treatment method of marine ship oily water - Google Patents
A kind of combination treatment method of marine ship oily water Download PDFInfo
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- CN107792992A CN107792992A CN201610807121.6A CN201610807121A CN107792992A CN 107792992 A CN107792992 A CN 107792992A CN 201610807121 A CN201610807121 A CN 201610807121A CN 107792992 A CN107792992 A CN 107792992A
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- 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
- C02F3/347—Use of yeasts or fungi
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- 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
- C02F3/348—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed
-
- 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
- C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Inorganic Chemistry (AREA)
- Mycology (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of combination treatment method of marine ship oily water, this method includes：It will be contacted in aeration degraded pond containing the salt tolerant biological compound fungi agent except hydrocarbon sea bacillus, Venice acinetobacter calcoaceticus, diesel oil alkane eating bacteria and saccharomycete with ship oil wastewater and carry out aeration and biological processing；Then the sewage by aeration and biological processing is contacted in flocculation sedimentation tank with aluminium polychloride and polyacrylamide, is well mixed and staticly settles processing.The method of the present invention is combined to handle the technology of high salt ship oil wastewater using the agent of salt tolerant biological compound fungi and physics and chemistry method, cope with the high salinity of offshore oil sewage and violent salinity altercation, pass through microbial bacterial agent efficient degradation petroleum hydrocarbon contaminant, and it is aided with coagulation, the processing of decolouring even depth, so as to realize effective processing of high salt ship oil wastewater.
Description
Technical field
The present invention relates to oily sewage disposal technical field, more particularly to a kind of Combined Treatment side of marine ship oily water
Method.
Background technology
Ship oil wastewater is mainly made up of ship ballast water, oil-containing tank washings and engine room water；Three's summation carries close to ship
The 50% of weight, it not only contains higher petroleum hydrocarbon, also has higher salinity, belongs to high salt oil-polluted water, intractability
It is larger.In addition, ship oil wastewater wide material sources, its greasy dirt content and nature difference are very big.Generally, every liter of oil-polluted water
Oil content arrive thousands of milligrams, even as high as tens thousand of milligrams for tens.And type oily in oil-polluted water can be divided into light hydrocarbonization
Compound, weight hydrocarbon, fuel oil, tar, lubricating oil, fat oil and cleaning compound.Form of the oil in water body is also more
It is kind various, and it is highly prone to the influence of the property of water body, other compounds present in water.According to shape of the oily waste water in water
State, oil slick, dispersed oil, oil emulsion and dissolved oil can be divided into.The particle diameter of oil slick is larger, generally higher than 100 μm, accounts for total oil mass
70%~80%.The particle diameter of dispersed oil was difficult to the oil droplet floated on the surface of the water in two hours, suspended in water at 100~10 μm.Breast
The oil droplet size of carburetion is less than 10 μm, is difficult to merge between oil droplet, stable for extended periods of time, it is difficult to separate.Dissolved oil is with chemical shape
Formula is dissolved in the water, and particle diameter is below 0.1 μm, it might even be possible to and small to several nanometers, it is difficult to separate.Oily waste water typically all has very
High COD value, there are certain colourity and smell, inflammable, oxidizable decomposition, the characteristics of being insoluble in water.Oily waste water is discharged into water body
Serious influence is caused, water-surface oil film thickness is more than the gas exchanges that will completely cut off between air and water body at 1 μm, causes water body molten
Solve oxygen decline, produce stench, cause water quality deterioration, organism in water is dead because of anoxic, and cause fish, shellfish etc. spoiled without
It can be used.Marine birds body surface affixes oil spilling, can lose flight function, or even causes birds dead.In addition, oily waste water also can
Air is polluted, influences crop growth.Oily waste water seriously pollutes and destroyed to caused by hydrosphere, biosphere, atmospheric thermodynamics, harm
Health and living environment, it is current problem in urgent need to solve that oily waste water, which is administered, to human survival and sustainable development
It is significant.
For being carried out more using method physically or chemically by petroleum hydrocarbon contaminated water body, traditional handicraft, Physical is main
By the oil fence, oil skimmer, oil absorption material etc., chemical method mainly has combustion (of oil) insitu, launches chemical oxidation degradation agent etc., this two class side
Method all exist oily waste treatment not thoroughly, easily cause secondary pollution problems.Bioanalysis oil removing process is that use can be with petroleum hydrocarbon
The specified microorganisms microbial inoculum that growth metabolism is carried out for carbon source absorbs and by Self substances metabolic degradation petroleum hydrocarbon, is converted
For thalline constituent and free of contamination CO2, so as to reach the purpose for administering oil pollution.What its metabolic process was formed contains micro- life
An activated sludge part for thing thalline ensures the activated sludge supply of aeration tank and lasting fortune by flowing back into aeration degraded pond
OK, another part is made solid sludges cake by concentration and transported；Carbon dioxide caused by metabolism then enters among atmospheric air circulation.
But the petroleum waste water from marine environment often has higher salinity, most of microbe does not adapt to height
The growing environment of salinity.With certain salinity tolerance, and can efficient degradation different type petroleum hydrocarbon contaminant strain
As the key point of microbial method processing petroleum waste water, in addition, after microbiological treatment, the petroleum hydrocarbon in oily water is basic
Remove, but the index of correlation of sewage such as COD, BOD, colourity, suspension, nitrogen and phosphorus content etc. are also difficult to completely up to standard, and it is appropriate to coordinate
Physics and chemistry processing means, control sewage index, be petroleum waste water processing requisite measure.
The content of the invention
The present invention provides a kind of combination treatment method of marine ship oily water, and this method uses salt tolerant biological compound fungi agent
It is combined with physics and chemistry method to handle the technology of high salt ship oil wastewater, copes with the high salinity of offshore oil sewage and violent salinity
Change, by microbial bacterial agent efficient degradation petroleum hydrocarbon contaminant, and it is aided with coagulation, the processing of decolouring even depth, so as to realize height
Effective processing of salt ship oil wastewater.
The present invention is achieved through the following technical solutions：
A kind of combination treatment method of marine ship oily water, including：Aeration degraded pond in will contain except hydrocarbon sea bacillus,
The salt tolerant biological compound fungi agent of Venice acinetobacter calcoaceticus, diesel oil alkane eating bacteria and saccharomycete is contacted and is aerated with ship oil wastewater
Biological treatment；Then by by aeration and biological processing sewage in flocculation sedimentation tank with aluminium polychloride (PAC) and polypropylene
Acid amides (PAM) contacts, and is well mixed and staticly settles processing.
Further, it is above-mentioned except hydrocarbon sea bacillus, Venice acinetobacter calcoaceticus, diesel oil alkane eating bacteria and saccharomycete are according to strain amount etc.
Ratio mixes.
Further, the above method adds the aluminium polychloride water that concentration is 10%~30% according to the ratio of 1% volume
Solution；Ratio according to 1% volume adds the polyacrylamide solution that concentration is 5%~10%.
Further, the total time of above-mentioned aeration and biological processing was more than or equal to 120 hours.
Further, the above-mentioned time for staticly settling processing is 2~4 hours.
Further, above-mentioned aeration and biological is handled also includes acclimation before, during above-mentioned acclimation, salt tolerant life
Thing composite bacteria agent is with ship oil wastewater according to 1：10 volume ratio mixing, and according to C:N:P=100-200:5:1 ratio row addition
Nitrogen source, phosphorus source and organic nutrition salt, carry out intermittent aeration, acclimation.
Further, above-mentioned nitrogen source is organic nitrogen source and at least one of inorganic nitrogen-sourced；Above-mentioned organic nutrition salt is phosphorus
At least one of acid dihydride potassium and ferrous sulfate.
Further, above-mentioned organic nitrogen source is at least one of dusty yeast and peptone, it is above-mentioned it is inorganic nitrogen-sourced be nitric acid
Ammonium.
Further, the above method also includes, and after the processing in flocculation sedimentation tank, is floated in Bellmer
White processing.
Further, the bleaching water that concentration is 1%, bleaching 2~4 hours are added according to the ratio of 5% volume.
The advantage of the invention is that：Containing resistance to except hydrocarbon sea bacillus, Venice acinetobacter calcoaceticus, diesel oil alkane eating bacteria and saccharomycete
Salt biological compound fungi agent has good salinity tolerance, can effectively adapt to different salinity shocks, and completes petroleum hydrocarbon dirt
Contaminate the efficient degradation of thing；The composite bacteria agent domestication time is short, and after system is stable, microbial inoculum can rely on water pollutant length for domestication completion
Phase survives, and without extra addition nutritive salt, effectively reduces processing cost.In addition, PAM, PAC used in the present invention and bleaching powder belong to
Conventional sewage treatment agent, cost is cheap, and after application dosage optimizes, treatment effect is obvious, can effectively reduce colourity, suspension
Deng pollutant index.
Brief description of the drawings
Fig. 1 is the high salt damage of oil pollution from ships water treatment technological process figure of one embodiment of this invention.
Embodiment
The present invention is described in further detail below by embodiment combination accompanying drawing.
Ship oil wastewater recycles enterprise after ship oil wastewater is collected, and wherein most is reclaimed by measures such as distillations
Crude oil, the ship oil wastewater still petroleum hydrocarbon containing higher concentration, and with salinity height, salinity changes of contents after recycling
The characteristics of larger, it is necessary to further handle, removes the pollutants such as petroleum hydrocarbon, qualified discharge or can be discharged into sewage treatment plant's progress
Subsequent treatment.The invention provides a kind of salt tolerant biological compound fungi agent and physico-chemical method to be combined to handle high salt ship oil wastewater
Technology, the technology cope with the high salinity of offshore oil sewage and violent salinity altercation, pass through microbial bacterial agent efficient degradation
Petroleum hydrocarbon contaminant, and it is aided with coagulation, the processing of decolouring even depth, so as to realize effective processing of high salt ship oil wastewater.
The salt tolerant biological compound fungi agent of the present invention and physics and chemistry method combination processing high salt ship oil wastewater technology, including following two
Individual aspect, it is described in detail below with reference to Fig. 1 high salt damage of oil pollution from ships water treatment technological process figure.
In a first aspect, salt tolerant composite bacteria agent efficient degradation petroleum hydrocarbon is to use to be grown by carbon source of petroleum hydrocarbon
The specified microorganisms microbial inoculum of metabolism absorbs and by Self substances metabolic degradation petroleum hydrocarbon, be translated into thalline constituent and
Free of contamination CO2, the activated sludge part containing microbial cells that its metabolic process is formed is by flowing back into aeration degraded
Pond, the activated sludge supply and continuous service, another part for ensureing aeration degraded pond are made solid sludges cake by concentration and transported；
Carbon dioxide caused by metabolism then enters among atmospheric air circulation.As shown in figure 1, one in the present invention is exemplary and non-limiting
Embodiment in, biodegradable oil removing process of the invention mainly include regulating reservoir, oil removal recovery pond, flotation tank, aeration degraded
Pond, sedimentation basin, flocculation basin (or coagulating basin), Bellmer, sludge recovery and dehydration device, aerator and each pond connecting pipe with
Pump valve.After petroleum hydrocarbon effectively recovery is completed, implement the high-performance bio degraded of sewage petrochina hydrocarbon.Oil-polluted water initially enters tune
Pond is saved, is sufficiently mixed, alleviates different batches, different greasy dirt contents, the oily water of different salinity content to biological treatment system
Impact；Oily water in regulating reservoir is boosted to be pumped to oil removal recovery pond, and part petroleum hydrocarbon enters water upper strata, by automatic wiping
Device reclaims, and grit, solid particle polluter and bottom suspended particulate gradually assemble pool water within bottom, periodic collection discharge；Sewage
Air-blowing is handled into flotation tank, and the greasy dirt on upper strata is reclaimed by scraping, and the oil-polluted water of lower floor enters aeration degraded pond and dropped
Solution processing.Sewage after Air Exposure is stood into sedimentation basin, and the activated sludge of the microorganism containing petroleum hydrocarbon degradation concentrates herein,
A part enters aeration tanks at different levels by reclaiming, and to ensure the clay content of aeration tank, remainder is further dehydrated concentration, shape
Transported into mud cake, the upper strata sewage in sedimentation basin voluntarily flows into flocculation basin.
Second aspect, high salt oil-polluted water employ the handling process such as flocculation basin, bleaching after microbial method is handled.
After microbial method processing water enters flocculation basin, aluminium polychloride (PAC) and polyacrylamide (PAM) aqueous solution, shape are added successively
Into flocculation sediment, to remove part larger molecular organicses, the colloid, heavy metal etc. in water removal, reduce turbidity and colourity bulky grain hangs
Float；Processing water after flocculation sediment enters Bellmer, adds bleaching water according to a certain percentage, reduces water body chroma, improves
Water transparency.
It is the detailed description of one embodiment of the invention below.
1. ship oil wastewater initially enters processing system regulating reservoir, it is sufficiently mixed, alleviates different batches, different greasy dirts contain
Amount, impact of the oily water of different salinity content to biological treatment system；Oily water in regulating reservoir is boosted to be pumped to oil removal
Recovery pond, part petroleum hydrocarbon enter water upper strata, reclaimed by automatic wiping device, and grit, solid particle polluter and bottom suspend
Particular aggregation over time pool water within bottom, periodic collection discharge；Sewage enters air-blowing in flotation tank and handled, and the greasy dirt on upper strata is scraped
Recovery, the oil-polluted water of lower floor enter aeration degraded pond and carry out degradation treatment.
2. domestication and aeration：Hydrocarbon sea bacillus, Venice acinetobacter calcoaceticus, diesel oil alkane eating bacteria, saccharomycete will be removed to ferment respectively, will
Except hydrocarbon sea bacillus, Venice acinetobacter calcoaceticus, diesel oil alkane eating bacteria and each 5L of saccharomycete bacterium solution add aeration tank, 10 times of volumes of addition
Ship oil wastewater, aeration degraded pond is together added, and according to C:N:P=100-200:5:1 ratio row addition nitrogen source and phosphorus source, have
Machine nutritive salt, intermittent aeration 8 hours, are tamed 7-10 days daily.Nitrogen source is organic nitrogen source and at least one of inorganic nitrogen-sourced,
Organic nitrogen source is at least one of dusty yeast and peptone, and inorganic nitrogen-sourced is ammonium nitrate；Organic nutrition salt is potassium dihydrogen phosphate
At least one of with ferrous sulfate, organic nitrogen source adds once every three days, and a 50g, other inorganic salts include：Ammonium nitrate
Addition 100g every time, each 10g of potassium dihydrogen phosphate, each 5g of ferrous sulfate, is then added weekly once, is persistently added 2 weeks.
3. amphimicrobian is handled：High salt petroleum waste water is added in by the stable bacterial strain of domestication, carries out Air Exposure, often
Its aeration 8 hours, anaerobism maintains 16 hours, alternate treatment, Air Exposure total time >=120 hour, in domestication and amphimicrobian
In processing procedure, temperature regulates and controls by outside air temperature, without manual control, by the strain of domestication, can be subjected to 0.5%-
The impact of the salinity change of 3.5% scope, need not add nitrogen source, phosphorus source and organic nutrition salt, in waste water after the completion of domestication
Nitrogen and phosphorus can meet growth demand.
4. flocculation sediment：Sewage after aeration and biological is handled is entered flocculation sedimentation tank (flocculation basin), according to 1% ratio
Aluminium polychloride (PAC) aqueous solution that concentration is 10%~30% is added, after being well mixed, concentration is added according to 1% ratio
For 5%~10% polyacrylamide (PAM) aqueous solution, after being well mixed, staticly settle 2~4 hours.
5. bleaching：Sewage after flocculation sediment is handled, into Bellmer, adding concentration according to 5% ratio is
1% bleaching water (being mixed with advance by bleaching powder and water), bleaching 2~4 hours.Complete processing procedure.
According to the detailed description of above-mentioned specific embodiment, technical scheme is described in detail by the following examples
And technique effect.It should be appreciated that embodiment is only exemplary, it is impossible to is interpreted as limiting the scope of the invention.
The present embodiment is set using the marine ship oily water that certain enterprise collects as process object with the small-sized oil removing of continuous flowing type
It is standby that (processing volume is 1m3) it is system processing unit, carry out the processing of ship oil wastewater.The water quality detection knot of sewage before and after the processing
Fruit is as shown in table 1 below.
The marine ship oily water of table 1 and each bid section processing water water quality data
Above content is to combine specific embodiment further description made for the present invention, it is impossible to assert this hair
Bright specific implementation is confined to these explanations.For general technical staff of the technical field of the invention, do not taking off
On the premise of from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the protection of the present invention
Scope.
Claims (10)
1. a kind of combination treatment method of marine ship oily water, it is characterised in that methods described includes：In aeration degraded pond
By containing except hydrocarbon sea bacillus, Venice acinetobacter calcoaceticus, diesel oil alkane eating bacteria and the salt tolerant biological compound fungi agent of saccharomycete and ship oil
Waste water simultaneously carries out aeration and biological processing；Then sewage process aeration and biological handled is in flocculation sedimentation tank with polymerizeing chlorine
Change aluminium and polyacrylamide contact, be well mixed and staticly settle processing.
2. the combination treatment method of marine ship oily water according to claim 1, it is characterised in that described to remove hydrocarbon sea bar
Bacterium, Venice acinetobacter calcoaceticus, diesel oil alkane eating bacteria and saccharomycete mix according to strain amount equal proportion.
3. the combination treatment method of marine ship oily water according to claim 1, it is characterised in that methods described according to
The ratio of 1% volume adds the polyaluminium aluminum water solution that concentration is 10% ~ 30%；According to 1% volume ratio add concentration be 5% ~
10% polyacrylamide solution.
4. the combination treatment method of marine ship oily water according to claim 1, it is characterised in that the aeration and biological
The total time of processing is more than or equal to 120 hours.
5. the combination treatment method of marine ship oily water according to claim 1, it is characterised in that described to staticly settle
The time of processing is 2 ~ 4 hours.
6. the combination treatment method of the marine ship oily water according to claim any one of 1-5, it is characterised in that described
Aeration and biological is handled also includes acclimation before, during the acclimation, the agent of salt tolerant biological compound fungi and damage of oil pollution from ships
Water is according to 1：10 volume ratio mixing, and according to C:N:P=100-200:5:1 ratio row addition nitrogen source, phosphorus source and organic nutrition
Salt, carry out intermittent aeration, acclimation.
7. the combination treatment method of marine ship oily water according to claim 6, it is characterised in that the nitrogen source is to have
Machine nitrogen source and at least one of inorganic nitrogen-sourced；The organic nutrition salt is at least one in potassium dihydrogen phosphate and ferrous sulfate
Kind.
8. the combination treatment method of marine ship oily water according to claim 7, it is characterised in that the organic nitrogen source
For at least one of dusty yeast and peptone, it is described it is inorganic nitrogen-sourced be ammonium nitrate.
9. the combination treatment method of the marine ship oily water according to claim any one of 1-5, it is characterised in that described
Method also includes, and after the processing in flocculation sedimentation tank, bleaching is carried out in Bellmer.
10. the combination treatment method of marine ship oily water according to claim 9, it is characterised in that according to 5% volume
Ratio add concentration be 1% bleaching water, bleaching 2 ~ 4 hours.
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| CN110590063A (en) * | 2019-09-17 | 2019-12-20 | 昆山科技大学 | Method and apparatus for treating oily wastewater with energy-generating and energy-saving effects |
| CN113264632A (en) * | 2021-04-16 | 2021-08-17 | 山东交通学院 | Treatment system and process for treating oil stain at bottom of cabin by using bionic fish gills |
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| CN113264632A (en) * | 2021-04-16 | 2021-08-17 | 山东交通学院 | Treatment system and process for treating oil stain at bottom of cabin by using bionic fish gills |
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