CN107973480A - Magnetic-coagulation and the integrated oil-containing sewage treatment system of catalysis oxidation and processing method - Google Patents
Magnetic-coagulation and the integrated oil-containing sewage treatment system of catalysis oxidation and processing method Download PDFInfo
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- CN107973480A CN107973480A CN201711378013.2A CN201711378013A CN107973480A CN 107973480 A CN107973480 A CN 107973480A CN 201711378013 A CN201711378013 A CN 201711378013A CN 107973480 A CN107973480 A CN 107973480A
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- 239000010865 sewage Substances 0.000 title claims abstract description 49
- 230000003647 oxidation Effects 0.000 title claims abstract description 27
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 27
- 238000005345 coagulation Methods 0.000 title claims abstract description 21
- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 20
- 238000003672 processing method Methods 0.000 title claims abstract description 6
- 239000006247 magnetic powder Substances 0.000 claims abstract description 56
- 238000002156 mixing Methods 0.000 claims abstract description 52
- 238000004062 sedimentation Methods 0.000 claims abstract description 39
- 238000011049 filling Methods 0.000 claims abstract description 33
- 239000010802 sludge Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 239000007800 oxidant agent Substances 0.000 claims abstract description 19
- 230000001590 oxidative effect Effects 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 239000002351 wastewater Substances 0.000 claims abstract description 15
- 239000000701 coagulant Substances 0.000 claims abstract description 11
- 239000003818 cinder Substances 0.000 claims abstract description 9
- 239000003814 drug Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 239000006148 magnetic separator Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000004581 coalescence Methods 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- 238000004220 aggregation Methods 0.000 claims description 5
- 230000002776 aggregation Effects 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 239000004155 Chlorine dioxide Substances 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 2
- 229920000289 Polyquaternium Polymers 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 2
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 238000010907 mechanical stirring Methods 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 2
- 230000004043 responsiveness Effects 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 238000005520 cutting process Methods 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000002957 persistent organic pollutant Substances 0.000 claims 1
- 229920002401 polyacrylamide Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 239000000126 substance Substances 0.000 abstract description 7
- 239000003344 environmental pollutant Substances 0.000 description 16
- 231100000719 pollutant Toxicity 0.000 description 16
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 101150054854 POU1F1 gene Proteins 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003209 petroleum derivative Substances 0.000 description 3
- 150000003254 radicals Chemical group 0.000 description 3
- 238000011172 small scale experimental method Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 2
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- -1 hydroxyl radical free radical Chemical class 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009852 coagulant defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229940056319 ferrosoferric oxide Drugs 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
- 238000003911 water pollution 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- 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
-
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
-
- 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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of magnetic-coagulation and the integrated oil-containing sewage treatment system of catalysis oxidation and processing method.The system includes sequentially connected first mixing pit, the second mixing pit, the 3rd mixing pit, the first sedimentation basin, the first reaction tank, the 4th mixing pit and the second sedimentation basin；Further include coagulant grug feeding jar, magnetic powder filling tank, flocculant grug feeding jar, oxidant filling apparatus, and the magnetic separating device being connected respectively with first and second sedimentation basin, an outlet of magnetic separating device connect magnetic powder filling tank and connect the first reaction tank via washer respectively；Another outlet is connected with sludge dewatering equipment, and first and second sedimentation basin is both provided with water outlet and spoil disposal cinder notch.The invention also discloses the method with above-mentioned processing system processing oily wastewater, which can play magnetic-coagulation separation and catalysed oxidn at the same time, realize the effective integrated processing of complicated Recalcitrant chemicals in oily wastewater, ensure water outlet.
Description
Technical field
The invention belongs to oily waste water treatment technical field, and in particular to a kind of magnetic-coagulation and catalysis oxidation is integrated contains
Oily sewage disposal system and processing method.
Background technology
Oil and gas industry is as the essential industry class to involve the interests of the state and the people, in its production process, is inevitably generated big
The oily wastewaters such as the oil field extracted water of amount.As production scale constantly increases, the treating capacity of oily wastewater continues to increase.And wherein
Pollutant load is high, and species is more, complicated component, and intractability is big.On the other hand, as the whole society is to environmental protection attention degree
Continuous lifting, prevent water pollution, ensure the qualified discharge of industrial water, also cause the highest attention of people.Traditional oil-containing
The problems such as sewage treatment process, there are pollutant sinking speed is slow, takes up a large area, pollutant residual, removal is not thorough.How
The fast and effective removal of multiple pollutant is realized in sewage disposal system, it has also become the important subject of association area.Open
The integration treatment process for sending out new, lifts oily waste water treatment efficiency, realizes pollutant advanced treating, disclosure satisfy that industrial production
And the demand of environmental protection, have important practical significance.
Sewage purification technology based on Magneto separate principle has that efficient, energy consumption is low, easy to operate, non-secondary pollution and cost
Low advantage.During dosing coagulation removes pollutant, magnetic powder is added into, suction-operated can be played, promotes flco
Formation and coalescence increase.Under the action of externally-applied magnetic field, it is easy to accomplish solid-liquid quick separating, it is possible to increase pollutant removal is imitated
Rate, has a clear superiority compared to existing oil-containing sewage treatment technique.Although having the advantages that above-mentioned, magnetic-coagulation is used alone
Correlation process method can not meet the needs of oily waste water treatment.This is complicated mainly due to pollutant component in oily wastewater,
Separate except difficulty is big.And magnetic-coagulation technology mainly removes pollutant by the principle of flocculation separation, have some limitations.
For the good petroleum hydrocarbon contaminant of the solubility to dispersion in sewage, wherein a variety of Recalcitrant chemicals are further included, using magnetic-coagulation
Method can not all realize removal, it is difficult to reach the requirement of pollutant advanced treating, it is necessary to be used in combination with other processes, increase
Strong disposal ability.
Catalytic oxidation treatment sewage refers to that under catalyst action oxidant generates hydroxyl radical free radical isoreactivity in water
Extremely strong free radical group.Free radical group can generate effectively with being difficult to the pollutant reaction being degraded under general condition
Small-molecule substance, strengthens mineralization degree.This method good petroleum hydrocarbon contaminant of solubility to dispersion suitable for treated sewage, for
The removal of difficult degradation petroleum hydrocarbon contaminant also has specific aim.But contain sewage with catalytic oxidation treatment, to play catalysis oxidation
Effect, current method catalytic oxidation technique unit load is big, and disturbing factor is more, and effect is also bad.
The content of the invention
The technical problems to be solved by the invention are complicated for oily wastewater pollutant component, and sinking speed is slow, processing
The problem of big efficiency of difficulty is low, the present invention provides a kind of magnetic-coagulation and the integrated oil-containing sewage treatment system of catalysis oxidation and
Treatment process, can make full use of magnetic powder, while play magnetic-coagulation separation and catalysed oxidn, realize multiple in oily wastewater
The effective integrated processing of miscellaneous Recalcitrant chemicals, ensures that water outlet reaches processing requirement.
The technical solution adopted in the present invention is specific as follows：At a kind of magnetic-coagulation and the integrated oily wastewater of catalysis oxidation
Reason system, including include sequentially connected first mixing pit, the second mixing pit, the 3rd mixing pit, the first sedimentation basin, the first reaction
Pond, the 4th mixing pit and the second sedimentation basin；Further include the coagulant grug feeding jar being connected with the first mixing pit and the second mixing pit phase
Magnetic powder filling tank even, the flocculant grug feeding jar being respectively connected with the 3rd mixing pit and the 4th mixing pit and the first reaction
The oxidant filling apparatus that pond is connected, and the magnetic separating device being connected respectively with the first sedimentation basin and the second sedimentation basin, it is described
Magnetic separating device one outlet respectively connect magnetic powder filling tank and via washer connect the first reaction tank；The magnetic
Another outlet of separator is connected with sludge dewatering equipment, and first sedimentation basin and the second sedimentation basin are respectively provided with out
The mouth of a river and spoil disposal cinder notch, the spoil disposal cinder notch are connected with magnetic separating device, and are equipped with externally-applied magnetic field outside the spoil disposal cinder notch.
In above-mentioned oil-containing sewage treatment system, first mixing pit, the second mixing pit, the 3rd mixing pit, first is anti-
To answer in pond and the 4th mixing pit, equal device has mechanical stirring equipment, and mixing speed rationally can be adjusted as needed,
To promote dosing to be sufficiently mixed with water inlet, medicament fully interacts with pollutant.
In above-mentioned oil-containing sewage treatment system, it is with anti-that the medicament kind used is stored in the coagulant grug feeding jar
Mutually organic and inorganic medicament of demulsification and water purification function, preferably polyquaternium, aluminium polychloride, bodied ferric sulfate etc..Specifically make
With which kind of medicament should according to oily wastewater property, by small-scale experiment it is preferable to determine.
In above-mentioned oil-containing sewage treatment system, magnetic powder filling tank storage magnetic powder, includes but not limited to
With magnetic responsiveness and catalytic activity, granularity is preferably ferroso-ferric oxide in the dispersible particle of nanometer to micro-scaled range
Deng the oxide and hydroxide of iron；Or the oxide that the metal ingredient such as iron and cadmium, cobalt, nickel, copper, zinc, manganese, silver collectively forms
And hydroxide alloy.
In above-mentioned oil-containing sewage treatment system, it is with can that the medicament kind that uses is stored in the flocculant grug feeding jar
Promote organic and inorganic medicament of pollutant flco coalescence increase separation function from sewage system, include but not limited to polypropylene
Acid amides and its derivative etc..Which kind of specifically used medicament should according to oily wastewater property, by small-scale experiment it is preferable to determine.
In above-mentioned oil-containing sewage treatment system, the oxidant species include oxygen, ozone, hydrogen peroxide, persulfate, chlorine
One or more in gas, hypochlorite and chlorine dioxide.Oxidant filling apparatus can carry out phase according to using oxidant species
It should match, as gaseous oxidizer need to match distribution device and blow valve；Liquid oxidizer need to control reasonable concentration and equip leakproof
Facility.Oxidant filling apparatus also needs to configure suitable volume control device such as regulating valve etc., convenient to adjust oxidation as needed
Agent adding amount.
In above-mentioned oil-containing sewage treatment system, first sedimentation basin and the second sedimentation basin respectively possess water outlet and
Spoil disposal cinder notch, can carry out initial gross separation to sewage system.Spoil disposal cinder notch is influenced by externally-applied magnetic field, is connected with magnetic separating device.
In above-mentioned oil-containing sewage treatment system, the magnetic separating device includes high-speed shearing machine and magnetic separator.Cut at a high speed
Cut machine shearing the sludge containing magnetic powder after, then through magnetic separator realize sludge separation and magnetic powder recycle.Magnetic separator
High gradient magnetic separator should be selected, pulley type magnetic separator or magnetic disc type magnetic separator can be selected, magnetic field background intensity is 1000
It is more than Gauss.
Certain density acid or alkali soluble can be used in above-mentioned oil-containing sewage treatment system, in the washer as needed
Liquid, or select the organic solvent of suitable kind to be cleaned as cleaning agent to the magnetic powder of recycling, to ensure that its catalysis is lived
Property.Specific cleaning agent species should according to oily wastewater property, by small-scale experiment it is preferable to determine.
In above-mentioned oil-containing sewage treatment system, the sludge dewatering equipment species includes but not limited to belt filter press, plate
Frame filter pressing dehydrator and centrifugal drier etc..
Present invention also offers one kind to utilize at above-mentioned magnetic-coagulation and the integrated oil-containing sewage treatment system of catalysis oxidation
Manage the processing method of oily wastewater, it is characterised in that including：
Oily wastewater enters the first mixing pit, small flco is thoroughly mixed to form with coagulant, into the second mixing pit, with adding
The magnetic powder effect of note, small flco aggregation increase, subsequent sewage containing flco enter the 3rd mixing pit, make in the flocculant of filling
Under, the abundant coalescence increase of flco becomes the alumen ustum containing magnetic powder；Sewage containing magnetic alumen ustum enters the first sedimentation basin,
Rapid subsidence under the action of 1000 Gauss above externally-applied magnetic fields, realizes separation of solid and liquid, the sludge containing magnetic powder settled
Into magnetic separating device, after magnetic powder is recovered cleaned device, into the first reaction tank；Magnetic powder recycling after sludge into
Enter sludge dewatering equipment dehydration；The isolated sewage through preliminary treatment of first sedimentation basin enters the first reaction tank, with magnetic after cleaning
Property powder and filling oxidant come into full contact with；Oxidant Quick Oxidation under magnetic powder catalysis decomposes remaining organic in water
Pollutant；Water after catalysis oxidation advanced treating carries magnetic powder and enters the 4th mixing pit, abundant with the flocculant of filling
Immixture forms magnetic flco；Water containing magnetic flco after advanced treating enters the second sedimentation basin, under additional magnetic fields
Magnetic flco rapid subsidence, the sludge containing magnetic powder settled enter magnetic separating device, and magnetic powder is separated and recovered
To magnetic powder filling tank, recycling；Remaining sludge is dehydrated into sludge dewatering equipment；Second sedimentation basin sedimentation separation goes out
Water is the water outlet up to standard after processing.
Beneficial effects of the present invention are：A kind of magnetic-coagulation and the integrated oil-containing sewage treatment system of catalysis oxidation and processing
Technique, using magnetic-coagulation equipment, can greatly speed up the sedimentation of generation pollutant flco, equipment takes up an area few, solid-liquid separation efficiency height.
Magnetic powder can be made full use of, while plays magnetic-coagulation separation and catalysed oxidn, efficiently removes complicated Recalcitrant chemicals,
Realize standard water discharge.Separation and recovery magnetic powder simultaneously reuses, and good economy performance, avoids secondary pollution.Magnetic powder conduct again
Catalyst, to the purified sewage of coagulation, further catalysis oxidation advanced treating, removes Recalcitrant chemicals.Using integration
Processing system, two kinds of mechanism of action collaborations work, and pollutant removal is efficiently thorough, and application prospect is good.
Brief description of the drawings
Fig. 1 is the structural representation of magnetic-coagulation provided by the invention and the integrated oil-containing sewage treatment system of catalysis oxidation
Figure.
In figure：1st, the first mixing pit, the 2, second mixing pit, the 3, the 3rd mixing pit, the 4, first sedimentation basin, the 5, first reaction
Pond, the 6, the 4th mixing pit, the 7, second sedimentation basin, 8, washer, 9, sludge dewatering equipment, 10, magnetic separating device, 11, oxidant adds
Dispensing device, 12, magnetic powder filling tank, 13, coagulant grug feeding jar, 14, flocculant grug feeding jar.
Embodiment
Below in conjunction with attached drawing detailed description of the present invention particular content.
A kind of magnetic-coagulation and the integrated oil-containing sewage treatment system of catalysis oxidation, including the first mixing pit 1, the second mixing
Pond 2, the 3rd mixing pit 3, the first sedimentation basin 4, the first reaction tank 5, the 4th mixing pit 6, the second sedimentation basin 7；System above
Interior each unit is sequentially connected.
Further include：Washer 8, sludge dewatering equipment 9, magnetic separating device 10, oxidant filling apparatus 11, magnetic powder filling
Tank 12, coagulant grug feeding jar 13, flocculant grug feeding jar 14.Wherein, coagulant grug feeding jar 13 is connected with the first mixing pit 1；It is magnetic
Powder filling tank 12 is connected with the second mixing pit 2；Flocculant grug feeding jar 14 and the 3rd mixing pit 3 and the 4th mixing pit 6 difference phase
Even；Oxidant filling apparatus 11 is connected with the first reaction tank 5；Magnetic separating device 10 is precipitated with the first sedimentation basin 4 and second respectively
Pond 7 is connected, it is exported connects magnetic powder filling tank 12 and connect the first reaction tank 5 via washer 8 respectively；Magnetic separating device
10 another outlets are connected with sludge dewatering equipment 9.
Treatment process of the present invention is：Oily wastewater enters the first mixing pit 1, is sufficiently mixed with preferable coagulant
Effect, preliminarily forms small flco；Further, sewage containing flco enters the second mixing pit 2, is acted on the magnetic powder of filling,
Center of the magnetic powder as absorption coalescence, promotes small flco aggregation increase, improves flco proportion；Further, it is dirty containing flco
Water enters the 3rd mixing pit 3, and under the flocculant effect of filling, the abundant coalescence increase of flco, becomes the alumen ustum containing magnetic powder,
Alumen ustum volume becomes larger；Further, the sewage containing magnetic alumen ustum enters the first sedimentation basin 4, work of the magnetic alumen ustum in externally-applied magnetic field
With lower rapid subsidence, separation of solid and liquid is realized, the sludge containing magnetic powder settled enters magnetic separating device 10, magnetic powder
After being recovered cleaned device 8, into the first reaction tank 5.Sludge after magnetic powder recycling is dehydrated into sludge dewatering equipment 9；The
One sedimentation basin, the 4 isolated sewage through preliminary treatment enters the first reaction tank 5, with magnetic powder after cleaning and the oxidation of filling
Agent comes into full contact with.Oxidant is subject to magnetic powder to be catalyzed, and produces the stronger free radical of oxidisability in water, being capable of Quick Oxidation point
Remaining organic pollution in Xie Shui, including Recalcitrant chemicals, oxidation product enter in next step, are removed easy to separate；Into one
Step ground, the water after catalysis oxidation advanced treating carry magnetic powder and enter the 4th mixing pit 6, fully mixed with the flocculant of filling
Cooperation is used, and the aggregation of oxidation product body refuse becomes larger, and forms magnetic flco；Further, the water containing magnetic flco after advanced treating into
Enter the second sedimentation basin 7, after magnetic flco aggregation under additional magnetic fields rapid subsidence, realize separation of solid and liquid, settle
Sludge containing magnetic powder enters magnetic separating device 10, and magnetic powder arrives magnetic powder filling tank 12 by separation and recovery, recycles
Utilize.Remaining sludge is dehydrated into sludge dewatering equipment 9；By the sedimentation separation process in the second sedimentation basin 7, you can gone out
Water.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can readily occur in,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of magnetic-coagulation and the integrated oil-containing sewage treatment system of catalysis oxidation, including sequentially connected first mixing pit,
Second mixing pit, the 3rd mixing pit, the first sedimentation basin, the first reaction tank, the 4th mixing pit and the second sedimentation basin；Further include and the
Coagulant grug feeding jar that one mixing pit is connected, the magnetic powder filling tank being connected with the second mixing pit, with the 3rd mixing pit and
Flocculant grug feeding jar that four mixing pits are respectively connected with, the oxidant filling apparatus being connected with the first reaction tank, and respectively with
The magnetic separating device that one sedimentation basin and the second sedimentation basin are connected, an outlet of the magnetic separating device connect magnetic powder respectively
Filling tank simultaneously connects the first reaction tank via washer；Another outlet of the magnetic separating device is connected with sludge dewatering equipment,
First sedimentation basin and the second sedimentation basin is respectively provided with water outlet and spoil disposal cinder notch, the spoil disposal cinder notch and magnetic point
It is connected from device, and externally-applied magnetic field is equipped with outside the spoil disposal cinder notch.
2. oil-containing sewage treatment system according to claim 1, it is characterised in that first mixing pit, second mixed
Closing device in pond, the 3rd mixing pit, the first reaction tank and the 4th mixing pit has mechanical stirring equipment.
3. oil-containing sewage treatment system according to claim 1, it is characterised in that mixed in the coagulant grug feeding jar
Solidifying agent is organic and inorganic medicament with rp demulsification and water purification function.
4. oil-containing sewage treatment system according to claim 1, it is characterised in that the coagulant for polyquaternium,
Aluminium polychloride or bodied ferric sulfate.
5. oil-containing sewage treatment system according to claim 1, it is characterised in that the magnetic powder filling tank storage
Magnetic powder be with magnetic responsiveness and catalytic activity, granularity in nanometer to micron-sized dispersible particle.
6. oil-containing sewage treatment system according to claim 1, it is characterised in that magnetic powder is the oxide and hydrogen of iron
Oxide；Or the oxide and hydroxide alloy that iron is collectively formed with cadmium, cobalt, nickel, copper, zinc, manganese, silver.
7. oil-containing sewage treatment system according to claim 1, it is characterised in that the wadding in the flocculant grug feeding jar
Solidifying agent is polyacrylamide and its derivative.
8. oil-containing sewage treatment system according to claim 1, it is characterised in that the oxygen in the oxidant filling apparatus
Agent is the one or more in oxygen, ozone, hydrogen peroxide, persulfate, chlorine, hypochlorite and chlorine dioxide.
9. oil-containing sewage treatment system according to claim 1, it is characterised in that the magnetic separating device includes cutting at a high speed
Machine and high gradient magnetic separator are cut, the magnetic field background intensity of the high gradient magnetic separator is more than 1000 Gausses.
A kind of 10. integrated oil-containing sewage treatment system processing oil-containing of magnetic-coagulation and catalysis oxidation with described in claim 1
The processing method of sewage, it is characterised in that comprise the following steps：
Oily wastewater enters the first mixing pit, and small flco is thoroughly mixed to form with coagulant, into the second mixing pit, with filling
Magnetic powder acts on, and small flco aggregation increase, subsequent sewage containing flco enters the 3rd mixing pit, is acted in the flocculant of filling
Under, the abundant coalescence increase of flco becomes the alumen ustum containing magnetic powder；Sewage further containing magnetic alumen ustum enters the first sedimentation basin,
The rapid subsidence under the action of 1000 Gauss above externally-applied magnetic fields, realizes separation of solid and liquid, the dirt containing magnetic powder settled
Mud enters magnetic separating device, after magnetic powder is recovered cleaned device, into the first reaction tank；Sludge after magnetic powder recycling
It is dehydrated into sludge dewatering equipment；The isolated sewage through preliminary treatment of first sedimentation basin enters the first reaction tank, after cleaning
Magnetic powder and the oxidant of filling come into full contact with；Oxidant is remaining in Quick Oxidation decomposition water under magnetic powder catalysis to be had
Organic pollutants；Water after catalysis oxidation advanced treating carries magnetic powder and enters the 4th mixing pit, is filled with the flocculant of filling
Point immixture forms magnetic flco；Water containing magnetic flco after advanced treating enters the second sedimentation basin, in additional magnetic fields
Magnetic flco rapid subsidence, the sludge containing magnetic powder settled enter magnetic separating device, and magnetic powder is separated back
Receive magnetic powder filling tank, recycling；Remaining sludge is dehydrated into sludge dewatering equipment；Second sedimentation basin sedimentation separation
Water outlet is the water outlet up to standard after processing.
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