CN108285214A - A kind of oil gas field wastewater treatment method - Google Patents
A kind of oil gas field wastewater treatment method Download PDFInfo
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- CN108285214A CN108285214A CN201710120620.2A CN201710120620A CN108285214A CN 108285214 A CN108285214 A CN 108285214A CN 201710120620 A CN201710120620 A CN 201710120620A CN 108285214 A CN108285214 A CN 108285214A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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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
- C02F1/5236—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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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- 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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a kind of oil gas field wastewater treatment methods, are related to technical field of waste water processing, to relatively simple, the defect that a variety of processing methods cannot be used in combination that solves existing oil gas field wastewater treatment method.This method includes：It will be in oilfield drilling wastewater collection to broken glue processor, it is added into broken glue processor while broken glue processor starts rotation and breaks glue inorganic agent, the waste water that addition is broken to glue inorganic agent flows into dehydration seperator, by being dehydrated addition coagulant and flocculation aid in the waste water of seperator, the first waste water is obtained；By in the first wastewater collection to micro-nano bubble air-floating apparatus, by micro-nano bubble air-floating apparatus, the micro oils removed in the first waste water obtains the second waste water by the first waste water for removing micro oils by fine filtration unit；Catalytic oxidation treatment will be carried out in second waste water, will be filtered precipitation by the second waste water of catalytic oxidation treatment, must reach the water resource of emission request.
Description
Technical field
The present invention relates to technical field of waste water processing, more particularly relate to a kind of oil gas field wastewater treatment method.
Background technology
Oil gas field is the abbreviation of natural oil gas field, is the region rich in natural gas.Usual organic matter is imbedded in 1,000 to 6,000
Meter Shen, temperature will produce oil at 65 to 150 degrees Celsius；And bury that deeper, temperature is higher will produce natural gas.
Oilfield drilling is high pollution industry, and the waste water that oil-gas field development generates is mainly the waste water generated in oil-gas mining
With probing waste water.In oil gas field waste water, the well-drilling waste water and discarded slurry that drilling well site generates, low permeability oil and gas field reservoir reconstruction
Generated fracturing outlet liquid waste water, the property of complicated components, especially fracturing outlet liquid waste water is unique, and intractability is more
Greatly.
Currently based on qualified discharge purpose treatment process mainly with physico-chemical process, electrochemical method and a small amount of biological skill
Art method processing, but treatment effeciency is low, less effective, treatment process is extremely complex, process flow is long, investment and operating cost all
It is very high and be difficult to hold.Current way is usually to mix to handle in other waste water, is handled reluctantly by diluting effect, but to original
The disposable waste water impact come is very big, causes whole unqualified or processing cost raising, and wherein invaluable chemistry
Auxiliary agent is also lost in vain, it is difficult to be realized that resource reclaim recycles, be caused environmental pollution and the wasting of resources.
In conclusion present oil gas field wastewater treatment method is relatively simple, there are a variety of processing methods cannot be in conjunction with making
Defect.
Invention content
The embodiment of the present invention provides a kind of oil gas field wastewater treatment method, to solve at oil gas field waste water in the prior art
Reason method is relatively simple, and there are the defects that a variety of processing methods cannot be used in combination.
The embodiment of the present invention provides a kind of oil gas field wastewater treatment method, including：
By in oilfield drilling wastewater collection to broken glue processor, to institute while the broken glue processor starts rotation
It states brokenly addition in glue processor and breaks glue inorganic agent, the waste water that addition is broken to glue inorganic agent flows into dehydration seperator, by described
Be dehydrated addition coagulant and flocculation aid in the waste water of seperator, remove the suspended material SS in the waste water, colloidal substance and
COD obtains the first waste water；
By in first wastewater collection to micro-nano bubble air-floating apparatus, by the micro-nano bubble air-floating apparatus,
The micro oils in first waste water is removed, by first waste water for removing micro oils by fine filtration unit, is obtained
To the second waste water；
Second waste water is subjected to catalytic oxidation treatment, will be carried out by second waste water of catalytic oxidation treatment
Filter precipitation, must reach the water resource of emission request.
Preferably, the catalytic oxidation treatment includes Fe/C weak electrolysis mechanisms and Femon reagent oxidation techniques.
Preferably, described by before in oilfield drilling wastewater collection to broken glue processor, further include：
Persulfate is added in the oilfield drilling waste water, ferrous sulfate catalysis persulfate is then added and generates tool
There is the sulphuric acid free radical of Strong oxdiative ability.
Preferably, the persulfate is the mixing of one or more of ammonium persulfate, sodium peroxydisulfate, potassium peroxydisulfate
Object.
Preferably, described to be filtered precipitation by second waste water of catalytic oxidation treatment, including：
Before being filtered precipitation to second waste water by catalytic oxidation treatment, to passing through catalytic oxidation treatment
Second waste water in addition conditioning agent and flocculant.
Preferably, the conditioning agent is made of sodium hydroxide and lime stone according to weight ratio 1: 1.2.
Preferably, the flocculant, by weight by following raw material, 7~12 parts of aluminum sulfate, sodium tripolyphosphate
6~8 parts, 3~5 parts of cationic polyacrylamide, 8~10 parts of dodecyl benzene sulfonic acid, 8~12 parts of sodium pyrosulfite, octyl phenol
4~7 parts of polyoxyethylene ether, 3~6 parts of sodium oleate.
Preferably, the coagulant is the mixing of one or more of ferrous sulfate, bodied ferric sulfate, aluminium polychloride
Object.
In the embodiment of the present invention, a kind of oil gas field wastewater treatment method is provided, including：By oilfield drilling wastewater collection
Into broken glue processor, is added into the broken glue processor while the broken glue processor starts rotation and break glue processing
Agent, the waste water that addition is broken to glue inorganic agent flow into dehydration seperator, and coagulation is added in the waste water by the dehydration seperator
Agent and flocculation aid remove the suspended material SS in the waste water, colloidal substance and COD, obtain the first waste water；Described first is given up
Water is collected into micro-nano bubble air-floating apparatus, by the micro-nano bubble air-floating apparatus, is removed in first waste water
Micro oils obtains the second waste water by first waste water for removing micro oils by fine filtration unit；By described second
Catalytic oxidation treatment is carried out in waste water, will be filtered precipitation by second waste water of catalytic oxidation treatment, must be reached
The water resource of emission request.In the above method, glue inorganic agent is broken using being added in broken glue processor, and coordinates solid-liquid classification de-
Water dispenser can exempt complicated procedures of forming and energy consumption that traditional intrinsic facility is brought, while simplifying process, the solid-liquid of raising
Classifying quality；Using micro-nano bubble air-floating apparatus by dispersed oil, oil emulsion and suspended matter removal, be conducive to subsequent processing；
Further, by catalytic oxidation treatment, strengthen the degradation of long-chain macromolecule organic matter.It is mutually tied by above-mentioned a variety of processing methods
It closes, solving solution, oil gas field wastewater treatment method is relatively simple in the prior art, and there are a variety of processing methods cannot be in conjunction with making
Defect.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of oil gas field wastewater treatment method flow diagram provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Below be this specification relates to technical term：
(full name in English is chemical oxygen demand to COD, and Chinese is referred to as：Chemical oxygen consumption (COC)), measurement unit is
Mg/L is one of the important overall target for evaluating water pollution degree, and the numerical value of COD is bigger, then water pollution is more serious.
(English is SS：Suspended solid, Chinese is referred to as：Solid suspension concentration), general unit is:Mg/L, it is dirty
SS in water treatment system, often refers to activated sludge concentration in mixed liquor, and (English is by general more common MLSS：MixedLiquor
Suspended Solid), SS can be also abbreviated as under the conditions of not causing ambiguity.
Fig. 1 illustratively shows a kind of oil gas field wastewater treatment method flow diagram provided in an embodiment of the present invention,
This method may at least apply for oil gas field field.
As shown in Figure 1, a kind of oil gas field wastewater treatment method provided in an embodiment of the present invention, mainly includes the following steps that：
Step 101, by oilfield drilling wastewater collection to broken glue processor, start rotation in the broken glue processor
It being added simultaneously into the broken glue processor and breaks glue inorganic agent, the waste water that addition is broken to glue inorganic agent flows into dehydration seperator,
By addition coagulant and flocculation aid in the waste water of the dehydration seperator, the suspended material SS in the waste water, colloid are removed
Substance and COD obtain the first waste water；
Step 102, by first wastewater collection to micro-nano bubble air-floating apparatus, pass through the micro-nano bubble gas
Floating device, removes the micro oils in first waste water, first waste water for removing micro oils is passed through fine filtering
Unit obtains the second waste water；
Step 103, catalytic oxidation treatment will be carried out in second waste water, described the second of catalytic oxidation treatment will be passed through
Waste water is filtered precipitation, must reach the water resource of emission request.
It should be noted that before step 101, need by oilfield drilling wastewater collection to broken glue processor it
Before, it needs that persulfate is first added in oilfield drilling waste water, ferrous sulfate catalysis persulfate generation, which is then added, to be had
The sulphuric acid free radical of Strong oxdiative ability.
It should be noted that the sulphuric acid free radical catalytic oxidation in the above process is to carry out at normal temperatures and pressures, instead
Seasonable pH value is between 7~10, and oxidization time is between 30~120 minutes.
In practical applications, it is ammonium persulfate, sodium peroxydisulfate, persulfuric acid that persulfate is added in oilfield drilling waste water
One or more of potassium mixture.In embodiments of the present invention, the concrete composition ingredient of the sulfate of addition is not limited.
In step 101, by oilfield drilling wastewater collection to broken glue processor, start the same of rotation in broken glue processor
When added into broken glue processor and break glue inorganic agent.It should be noted that different drilling fluid systems needs corresponding addition different
The broken glue inorganic agent of amount waste water is stirred, broken glue inorganic agent and waste water are stirred when broken glue processor rotates
Broken glue is de- steady rapidly.Then the waste water for being added to brokenly glue inorganic agent is flowed into dehydration seperator, and is added in dehydration seperator
Coagulant and flocculation aid.
It, can be by the suspended material SS in waste water, colloid by adding coagulant and flocculation aid, and by dehydration seperator
Substance and COD are got rid of, to obtain the first waste water.
It should be noted that in embodiments of the present invention, coagulant is ferrous sulfate, bodied ferric sulfate, aluminium polychloride
One or more of mixture.
It should be noted that aqueous relatively low by sludge after being dehydrated seperator, the water quality of the first waste water is more muddy, main
To be in dark-brown or aterrimus, wherein content of organics is relatively high in the first waste water.
In a step 102, it by the first wastewater collection to micro-nano bubble air-floating apparatus, is filled by micro-nano bubble air supporting
It sets, removes the micro oils in the first waste water.It should be noted that in practical applications, dissolved air flotation technology is processing oil-containing
The indispensable technique of well-drilling waste water, to oils, ss suspended solid and partial organic substances have higher removal rate.Usually used
Air supporting clothes are that conventional pressurized holds gas Bubble-floating Method, and processing unit is by air compressor, pressure air-dissolving tank, decompression release device, air supporting
The equipment such as slag composition is scraped in pond, machine, and system complex, operating mode is unstable, and is easily occurred with decompression relief valve or special release
The problems such as corrosion blocks.In embodiments of the present invention, in order to avoid the above problem can using micro-nano bubble air-floating apparatus
To realize " high efficiency " to purification of water quality under the premise of " low energy consumption, low cost ", and it is height automatic control, stable.
Micro-nano bubble air-floating apparatus, when can air either ozone is sucked or is pressurizeed by negative pressure, mixing wastewater with air liquid exists
High speed rotation in mixing wastewater with air tank, cutting, generates the micro-nano bubble of a diameter of 200nm~30um, micro-nano in flotation tank
Bubble is mutually adhered to each other with impurities in water particle and is emerged, and is separated by solid-liquid separation to realize.
In embodiments of the present invention, first waste water for removing micro oils is obtained by fine filtration unit
Two waste water.
In step 103, catalytic oxidation treatment will be carried out in the second waste water, will pass through the second waste water of catalytic oxidation treatment
It is filtered precipitation, the water resource of emission request must be reached.
It should be noted that in practical applications, catalytic oxidation treatment includes Fe/C weak electrolysis mechanisms and Femon reagent oxygen
Chemical industry skill.
Wherein, the mechanism of Fe/C weak electrolysis mechanisms organics removal is that there is certain potential differences between iron-carbon particle
And form numerous subtle primary battery circuit.These subtle batteries are to become cathode, the high carbon conduct of current potential with the low iron of current potential
In the aqueous solution of oil-containing pickling electrolyte electrochemical reaction occurs for anode.Certain organic matters for being difficult to degrade in waste water exist
Redox reaction is directly or indirectly participated in electrode surface solution, to be degraded or change the property of pollutant.
Since electrochemical reaction forms field effect in the solution, the stabilising system of the colloidal particle disperseed in solution, colloid grains are destroyed
Electrode movement from son to opposite charges, precipitation or absorption on the electrode, to remove suspended state in waste water and colloidal attitude
Polluter；Micro-electrolysis reaction product has high chemism, wherein new life atomic state H and nascent state Fe2+Can in waste water
Reduction occurs for many components, destroys its molecular structure, color development or auxochrome group are destroyed and lose color development ability.Make big
Molecular substance is decomposed into the intermediate of small molecule, and certain organic matter reduction difficult to degrade generate degradable compound, to carry
The high biodegradability of waste water.
In embodiments of the present invention, to precipitation will be filtered by the second waste water of catalytic oxidation treatment, include mainly：
Before being filtered precipitation to the second waste water by catalytic oxidation treatment, into the second waste water by catalytic oxidation treatment
Add conditioning agent and flocculant.
Wherein, conditioning agent is made of sodium hydroxide and lime stone according to weight ratio 1: 1.2；Flocculant is pressed by following raw material
It is formed according to parts by weight, 7~12 parts of aluminum sulfate, 6~8 parts of sodium tripolyphosphate, 3~5 parts of cationic polyacrylamide, dodecyl
8~10 parts of benzene sulfonic acid, 8~12 parts of sodium pyrosulfite, 4~7 parts of octyl phenol polyoxyethylene ether, 3~6 parts of sodium oleate.
In conclusion an embodiment of the present invention provides a kind of oil gas field wastewater treatment methods, including：Oilfield drilling is given up
Water is collected into brokenly in glue processor, is added into the broken glue processor while the broken glue processor starts rotation and is broken glue
Inorganic agent, the waste water that addition is broken to glue inorganic agent flow into dehydration seperator, are added in the waste water by the dehydration seperator
Coagulant and flocculation aid remove the suspended material SS in the waste water, colloidal substance and COD, obtain the first waste water；By described
In one wastewater collection to micro-nano bubble air-floating apparatus, by the micro-nano bubble air-floating apparatus, first waste water is removed
In micro oils obtain the second waste water by first waste water for removing micro oils by fine filtration unit；It will be described
Catalytic oxidation treatment is carried out in second waste water, will be filtered precipitation by second waste water of catalytic oxidation treatment, is obtained
Reach the water resource of emission request.In the above method, glue inorganic agent is broken using being added in broken glue processor, and coordinate solid-liquid point
Class dewaterer can exempt complicated procedures of forming and energy consumption that traditional intrinsic facility is brought, while simplifying process, raising
Solid-liquid classifying quality；Using micro-nano bubble air-floating apparatus by dispersed oil, oil emulsion and suspended matter removal, be conducive to subsequently locate
Reason；Further, by catalytic oxidation treatment, strengthen the degradation of long-chain macromolecule organic matter.Pass through above-mentioned a variety of processing methods
It is combined, solving solution, oil gas field wastewater treatment method is relatively simple in the prior art, and there are a variety of processing methods to tie
Close the defect used.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. a kind of oil gas field wastewater treatment method, which is characterized in that including：
By in oilfield drilling wastewater collection to broken glue processor, broken to described while the broken glue processor starts rotation
Glue inorganic agent is broken in addition in glue processor, and the waste water that addition is broken to glue inorganic agent flows into dehydration seperator, is passing through the dehydration
Addition coagulant and flocculation aid, remove the suspended material SS in the waste water, colloidal substance and COD, obtain in the waste water of seperator
To the first waste water；
By in first wastewater collection to micro-nano bubble air-floating apparatus, pass through the micro-nano bubble air-floating apparatus, removal
Micro oils in first waste water obtains by first waste water for removing micro oils by fine filtration unit
Two waste water；
Second waste water is subjected to catalytic oxidation treatment, it is heavy by being filtered by second waste water of catalytic oxidation treatment
It forms sediment, the water resource of emission request must be reached.
2. the method as described in claim 1, which is characterized in that the catalytic oxidation treatment include Fe/C weak electrolysis mechanisms and
Femon reagent oxidation techniques.
3. the method as described in claim 1, which is characterized in that it is described will be in oilfield drilling wastewater collection to broken glue processor
Before, further include：
Persulfate is added in the oilfield drilling waste water, ferrous sulfate catalysis persulfate, which is then added, and generates has by force
The sulphuric acid free radical of oxidability.
4. method as claimed in claim 3, which is characterized in that the persulfate is ammonium persulfate, sodium peroxydisulfate, over cure
One or more of sour potassium mixture.
5. the method as described in claim 1, which is characterized in that it is described by by second waste water of catalytic oxidation treatment into
Row filtering precipitation, including：
Before being filtered precipitation to second waste water by catalytic oxidation treatment, to the institute by catalytic oxidation treatment
State addition conditioning agent and flocculant in the second waste water.
6. method as claimed in claim 5, which is characterized in that the conditioning agent, by sodium hydroxide and lime stone according to weight
Than 1: 1.2 composition.
7. method as claimed in claim 5, which is characterized in that the flocculant, by weight by following raw material,
7~12 parts of aluminum sulfate, 6~8 parts of sodium tripolyphosphate, 3~5 parts of cationic polyacrylamide, 8~10 parts of dodecyl benzene sulfonic acid,
8~12 parts of sodium pyrosulfite, 4~7 parts of octyl phenol polyoxyethylene ether, 3~6 parts of sodium oleate.
8. the method as described in claim 1, which is characterized in that the coagulant is ferrous sulfate, bodied ferric sulfate, polymerization chlorine
Change the mixture of one or more of aluminium.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362473A (en) * | 2020-04-20 | 2020-07-03 | 杭州师范大学钱江学院 | Treatment method of tertiary oil recovery wastewater of oil field |
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| CN102701487A (en) * | 2012-06-25 | 2012-10-03 | 杨德敏 | Method for treating sulfur-containing wastewater of oil and gas field |
| RU153106U1 (en) * | 2014-04-03 | 2015-07-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Самарский государственный технический университет" | DEVICE FOR PREPARATION OF OIL-FIELD WATERS FOR SYSTEM OF SUPPORT OF PLASTIC PRESSURE OF OIL DEPOSITS |
| CN104355476A (en) * | 2014-11-25 | 2015-02-18 | 成都国盛环境保护技术有限公司 | Process and device for overall standard-reached treatment for oil-gas field drilling waste |
| CN106219854A (en) * | 2016-08-30 | 2016-12-14 | 杜普利 | Oilfield drilling method of wastewater treatment |
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| CN111362473A (en) * | 2020-04-20 | 2020-07-03 | 杭州师范大学钱江学院 | Treatment method of tertiary oil recovery wastewater of oil field |
| CN111362473B (en) * | 2020-04-20 | 2022-05-27 | 云南华松科技有限公司 | Treatment method of tertiary oil recovery wastewater of oil field |
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