CN107032557A - A kind of method that modified clay aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment - Google Patents

A kind of method that modified clay aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment Download PDF

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CN107032557A
CN107032557A CN201710214238.8A CN201710214238A CN107032557A CN 107032557 A CN107032557 A CN 107032557A CN 201710214238 A CN201710214238 A CN 201710214238A CN 107032557 A CN107032557 A CN 107032557A
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oil
water
high fouling
modified clay
ngi
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屈撑囤
鱼涛
张欢
谢娟
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Xian Shiyou University
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Xian Shiyou University
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/288Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1205Particular type of activated sludge processes
    • C02F3/1226Particular type of activated sludge processes comprising an absorbent material suspended in the mixed liquor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used

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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)

Abstract

The invention discloses a kind of method that modified clay aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment, high fouling oil field extracted water and certain density modified clay are pre-mixed after certain time in mixing pit, the dirt class material such as calcium sulfate, calcium carbonate in high fouling recovered water is deposited on modified surface of clay under the suction-operated of modified surface of clay polysaccharose substance or protein;Thereafter the water outlet in mixing pit is imported in microbial reaction pond, carries out the processing of sewage to the degradation of Organic substance in water using microorganism;The water outlet of microbial reaction pond is by filtering, re-injection oil reservoir;This method has been effectively promoted dirt in modified clay particle surface deposition, and then dirt is reduced in antimicrobial surface deposition, it ensure that microbial method handles the stable operation of high fouling oil extraction-generated waste water technique, efficient degradation of the microorganism to oil extraction-generated waste water is promoted, is deposited for the removal and elimination dirt for solving high fouling oil extraction-generated waste water dirt in antimicrobial surface and is influenceed microbial method to handle high fouling oil recovery treatment efficiency and technical support and feasible program are provided.

Description

A kind of method that modified clay aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment
Technical field
The invention belongs to Produced Water In Oil-gas Fields, Ngi processing and reuse technology field, and in particular to a kind of modified clay aids in micro- life The method of the high fouling Produced Water In Oil-gas Fields, Ngi of thing processing.
Background technology
At present, the Produced Liquid moisture content being had enter into China's oil-gas field development in waterflood stage, producing well is up to more More than 80%, and oil field produces substantial amounts of water in need as injection water, the recovered water after processing is optimal injection water water source. Generally, oil field extracted water salt content high (most of even as high as 290000mg/L between 20000-120000mg/L, having), Ca2+And SO4 2-Ion concentration is high, often contains a certain amount of HCO in sewage in addition3 -、CO3 2-, therefore sewage fouling belongs to generally existing As the even strong fouling water having.
Produced water treatment has at present:At Physical, chemical method, physical-chemical process, microorganism treatment etc., wherein microorganism Reason technology has that the dirty Organic substance in water ability of mild condition, degraded is strong, the feature of stable effluent quality, and therefore, this method turns into One of method of oil recovery treatment very advantageous.In microbiological treatment technology, obtain dominant degradation bacteria and improve its degraded Performance is the key of the technology.By effort for many years, activated sludge process, biomembrance process and stabilization pond method etc. have been formd many Processing method and technique are planted, wherein with activated sludge process using more.
Although biological method processing oil extraction-generated waste water is technically feasible, it is related to microbiological treatment oil extraction-generated waste water and also deposits In many problems.Such as meeting fouling, sewage fouling meeting because of interionic reaction after the poor multilayer oil extraction-generated waste water mixing of compatibility Microorganism and extraneous Exchange of material and energy are influenceed, and is suppressed the microorganism in biological treatment system, microorganism is caused Sewage treatment process treatment effeciency, which declines, even paralyses.
Therefore, need to solve because the high fouling of oil extraction-generated waste water causes dirt in micro- life during microbiological treatment oil extraction-generated waste water Thing surface deposit and cause micro-organism treatment process bad stability, or even paralysis deficiency the problems such as, in order to avoid influence microorganism To the efficient degradation of dirty Organic substance in water.
The content of the invention
To solve problems of the prior art, the invention provides a kind of modified clay auxiliary microbiological treatment height knot The method of dirty Produced Water In Oil-gas Fields, Ngi, modified clay stain eliminating technology link is added in microbiological treatment leading portion, can promote dirt in modification Clay particle surface is deposited, and then reduces dirt in antimicrobial surface deposition, it is ensured that the high fouling oil extraction-generated waste water of microbial method processing The stable operation of technique, promotes efficient degradation of the microorganism to oil extraction-generated waste water, this method is simple and easy to apply, and cost is relatively low, and two Secondary pollution is few.
To achieve the above object, the invention discloses following technical scheme:A kind of modified clay auxiliary microbiological treatment is high The method of fouling Produced Water In Oil-gas Fields, Ngi, this method comprises the following steps:
Step one:The high fouling recovered water of oil gas field that oily-water seperating equipment is isolated is pumped in mixing pit, by modification Clay is added in mixing pit and is pre-mixed with high fouling recovered water, forms mixed liquor a;
Step 2:After mixed liquor a is sufficiently mixed, the dirty class material in high fouling recovered water is in modified clay surface modification Under the suction-operated of thing polar groups, modified surface of clay is deposited on, mixed liquor b is formed;
Step 3:Mixed liquor b is imported in microbial reaction pond, the organic matter in mixed liquor b carried out using microorganism Mixed liquor c is formed after degradation treatment;
Step 4:Mixed liquor c is filtered, water after filter reinjection into reservoir, continuation is used as oilfield injection water.
Being added in step one also into mixing pit has pH value regulator, flocculant and flocculation aid;PH value regulator is used to adjust Mixed liquor a pH value is saved 6~8;PH value regulator is sodium hydroxide or sodium hydroxide and calcium oxide according to mass ratio 2:1 system Standby compound, flocculant is PAC, and flocculation aid is PAM.
The amount of scale buildup being used in rate-determining steps two in every liter of mixed liquor b of the modification clay added in step one is not higher than 50mg。
Modification clay particle fineness in the step one is higher than 100 mesh, and water content is less than 5%, in the high fouling extraction of 1L 50mg~100mg is added in water and is modified clay.
Mixed liquor a incorporation time is at least 20min in the step 2.
Microbial reaction pond in the step 3 is aerobic reaction tank.
Filter in the step 4 uses film filter, or quartz filter blooming filter, or quartz sand mistake Filter adds walnut shell filter plus modified fiber ball filter.
Modification clay in the step one is the montmorillonite after the concentrated sulfuric acid acidification of mass concentration 10%, dry It is dry, be crushed to more than 100 mesh after, mixed at room temperature to adsorption saturation with polysaccharose substance or protein solution, through filtering, Dry, crush obtained.
The polysaccharose substance is for chitosan and containing hydroxyl or amino polysaccharide derivates, and the protein is glycoprotein And containing hydroxyl or amino protein derivatives, the polysaccharose substance or protein are with intercalation and adsorption two ways It is supported on montmorillonite surface.
The load capacity of the polysaccharose substance or protein on montmorillonite surface is:1g montmorillonite area loads 50mg~ 247mg polysaccharose substances or protein.
Compared with prior art, the present invention at least has the advantages that:
The present invention is carrying out degradation treatment using microorganism to oil gas field oil-containing extraction Organic substance in water, and processing is thorough, into This is low, on the basis of the advantages of secondary pollution is few, adds modified clay stain eliminating technology link in microbiological treatment leading portion, can promote Dirt is deposited in modified clay particle surface, and then, it is ensured that the reduction dirt of the high fouling oil extraction-generated waste water technique of microbial method processing exists Antimicrobial surface deposits stable operation, promotes efficient degradation of the microorganism to oil extraction-generated waste water, and then avoid because dirt is micro- Biological surface deposition causes microbial degradation speed to decline, or even situations such as paralysis, handling process is simple and easy to apply, and cost is relatively low, And secondary pollution is few.
Polysaccharide and protein-modified adsorption by clay descalling technique and the high fouling oil recovery treatment technique phase of microbiological treatment With reference to invention deposited in antimicrobial surface for solving the removal of high fouling oil extraction-generated waste water dirt and eliminating dirt and influence micro- life The high fouling oil recovery treatment efficiency of thing method processing provides technical support and feasible program, and polysaccharose substance and protein conduct Sorbent-loaded is in montmorillonite surface and intercalation so that the structure of the modification clay is more stablized, to the dirt in oil extraction-generated waste water With quick, thoroughly adsorption effect, so as to optimize stain eliminating technology link to a certain extent, improve whole processing technology and enter Journey.
Microbial reaction pond uses aerobic reaction tank, provides good aerobic environment for the degradation process of microorganism, can have Degradation efficiency of the effect promotion microorganism to organic matter in oil extraction-generated waste water.
The present invention, for adsorbing the suspension in recovered water, forms settling of floccus also by adding flocculant and flocculation aid In bottom, the suspension in recovered water is removed in advance, and make to be modified absorption of the clay to dirt is not influenceed by Suspended Matter in Water, and Mixed liquor is adjusted to neutral environment by adding pH adjusting agent, is beneficial to the absorption of structure in mixed liquor;Moreover, in neutral ring Under border, microorganism is more obvious to the degradation effect of organic harmful substance in recovered water.
The Produced Water In Oil-gas Fields, Ngi after modified adsorption by clay and microbiological treatment is filtered in the present invention, filter is adopted With film filter, either quartz filter+film filter or quartz filter+walnut shell filter+modified fiber ball Filter, these three filters can be achieved to produce thorough, the quick high efficiency filter effect of sewage, further optimization after processing Handling process, being later stage supernatant as reinjected water injection stratum, there is provided good aquatic environment.
Brief description of the drawings
Fig. 1 handles the technological process of the high fouling oil extraction-generated waste water of oil gas field for the present invention.
Embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
In the present invention, the general principle of the modified clay auxiliary high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment is:By changing Property clay in be supported on being tied containing hydroxyl, the polysaccharide of amino polar group or protein and its derivative to height in montmorillonite Under the dirt class material suction-operated such as calcium sulfate, calcium carbonate in dirty recovered water, it is set to be deposited on modified surface of clay, and then reduce Dirt promotes efficient degradation of the microorganism to oil extraction-generated waste water, it is to avoid because dirt is in antimicrobial surface in antimicrobial surface deposition Deposition causes microbial degradation speed to decline, or even situations such as paralysis, handling process is simple and easy to apply, and cost is relatively low, and secondary dirt Dye is few.
As shown in figure 1, the invention discloses a kind of modified clay auxiliary high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment Method, this method includes following steps:
1) modified clay is added:The high fouling recovered water of oil gas field isolated from oily-water seperating equipment is pumped to mixing pit In, a certain amount of modified clay is added in mixing pit and is pre-mixed with high fouling recovered water, mixed liquor a is formed;It is modified viscous The addition of soil is not higher than 50mg as standard using the amount of scale buildup in every liter of mixed liquor in controlling;
2) mixed precipitation is pre-processed:After mixed liquor a is sufficiently mixed (incorporation time is at least 20min), high fouling extraction The dirt class material such as calcium sulfate, calcium carbonate in water is under the suction-operated of modified clay surface modification thing polar groups, deposition In modified surface of clay, mixed liquor b is formed;
3) the mixed liquor b in mixing pit is imported in microbial reaction pond, the degraded using microorganism to Organic substance in water Effect carries out the processing of sewage, the preferred aerobic reaction tank in microbial reaction pond formed in mixed liquor c, this step;
4) the mixed liquor c in step 3 after microbiological treatment is filtered, water after filter reinjection into reservoir, continues to make Used for oilfield injection water;Filter in this step uses film filter, or quartz filter blooming filter, or quartz Sand filter adds walnut shell filter plus modified fiber ball filter.
The modification clay particle fineness used in the processing procedure of the present invention is higher than 100 mesh, and water content is less than 5%, prepares Method is montmorillonite after the concentrated sulfuric acid acidification of mass concentration 10%, after drying, being crushed to more than 100 mesh, and many Glucide or protein solution are mixed to adsorption saturation at room temperature, are made through filtering, dry, crushing;It is preferred that, polysaccharide Class material is for chitosan and containing hydroxyl or amino polysaccharide derivates, and protein is glycoprotein and contains hydroxyl or amino egg White matter derivative, polysaccharose substance or protein are supported on montmorillonite surface, and polysaccharide with intercalation and adsorption two ways The load capacity of class material or protein on montmorillonite surface is:1g montmorillonites area load 50mg~247mg polysaccharose substances or Protein.
It is exemplified below three and the high fouling oil extraction-generated waste water from different oil extraction in oil field factories is handled using processing method of the present invention Embodiment.
Embodiment 1:
It is water -- natural oil removing -- to extend the multi-purpose station oil-containing sewage treatment technique flow of oil field Wuqi County oil recovery factory's stone million Air supporting -- biochemistry pool -- filtering -- water outlet, biochemistry pool import sewage amount of scale buildup is 180-260mg/L, and oil content is 10-15mg/L, Suspension content is 5-10mg/L, during normal operation, and biochemistry pool outlet amount of scale buildup is 30-50mg/L, and oil content is≤1mg/L, Suspension content 5-10mg/L, after filtering water outlet reaches reinjected water water quality requirement.But, three months run times, dirt is in life Changing pond microbe granular surface deposition causes microbe treatment system to collapse, and the fouling of filtration system filtrate is serious, and dirty type is with carbon Based on sour calcium.After measured, biochemistry pool outlet amount of scale buildup is 60-100mg/L, and oil content is 15-25mg/L, suspension content 12- 20mg/L。
Modified clay+mixed precipitation pretreatment is added before flotation tank, pre-treatment medicaments are chitin modified clay, pH value Conditioning agent (sodium hydroxide), flocculant (PAC), flocculation aid (PAM), chemical feeding quantity is respectively 50mg/L, 80mg/L, 40mg/L, 0.5mg/L, medicine-adding order is followed successively by chitin modified clay, pH value regulator (sodium hydroxide), flocculant (PAC), flocculation aid (PAM), biochemistry pool import amount of scale buildup is changed into 15-25mg/L after pretreatment, and biochemistry pool antimicrobial surface does not find scale forming matter, mistake Filter surface does not also find scale forming matter, and 1 year, the operation of sewage disposal system was stable.
Embodiment 2:
Extend the series of strata recovered water of oil field apricot river length 2, calcium ion content isSulfate ion content Growing 6 series of strata recovered water calcium ion contents isSulfate ion contentLong 2 series of strata recovered waters are mixed with long 6 series of strata recovered waters by 9 ︰ 1, and 72h amount of scale buildups are 4478.25mg/L.Using Pseudomonad handles the mixed sample, crude oil addition 4%, strain addition 2%, mixing speed 200r/min, 37 DEG C of temperature, PH value is 7.5, degradation time 7 days, because dirt is in the coalescence of pseudomonad surface, deposition, cause pseudomonad and external substance with Energy exchange approach is obstructed, and oil degradation rate is by blank (simulation water:Change calcium ion in long by 2, long 6 layers of water into content of the same race Sodium ion, remaining ion concentration is constant) 53.45% drop to 17.52%.Mix fouling water to pre-process by modified clay, in advance Treatment agent is respectively chitin modified clay, pH value regulator (sodium hydroxide), flocculant (PAC), flocculation aid (PAM), plus Dose is respectively 100mg/L, 30mg/L, 50mg/L, 1mg/L, and medicine-adding order is followed successively by chitin modified clay, pH value regulator (sodium hydroxide), flocculant (PAC), flocculation aid (PAM), mixing water 72h amount of scale buildups are 45mg/L after pretreatment, using false unit cell Bacterium handles the mixed sample, under equal conditions, and oil degradation rate is 60.78%.
Case 3:
Extending the series of strata recovered water calcium ion content of oil field apricot river length 2 isSulfate ion content Growing 6 series of strata recovered water calcium ion contents isSulfate ion contentLong 2 series of strata recovered waters are mixed with long 6 series of strata recovered waters in the ratios of 9 ︰, 1 to 1 ︰ 9, and 72h amount of scale buildups are 275mg/L To between 4478.25mg/L.The mixed sample, crude oil addition 4%, strain addition 2%, stirring speed are handled with pseudomonad Spend 200r/min, 37 DEG C of temperature, pH value is 7.5, degradation time 7 days, oil degradation rate be 15.75 to 22.86 between.It is not year-on-year Example mixing fouling water is by modified clay pretreatment, and pre-treatment medicaments are respectively chitin modified clay, pH value regulator (hydrogen-oxygen Change sodium with calcium oxide according to mass ratio 2:1 compound prepared), flocculant (PAC), flocculation aid (PAM), chemical feeding quantity is respectively 80mg/L, 30mg/L, 50mg/L, 1mg/L, medicine-adding order be followed successively by chitin modified clay, pH value regulator (sodium hydroxide), Flocculant (PAC), flocculation aid (PAM), mixing water 72h amount of scale buildups are 30mg/L after pretreatment, and handling this using pseudomonad mixes Heshui sample, under equal conditions, oil degradation rate are 67.34%.
Find out from embodiment, the addition of modified clay causes the amount of scale buildup in biochemistry pool substantially to reduce, to a certain extent Dirt is prevented in the deposition of antimicrobial surface, and then promotes degradation rate of the microorganism to recovered water Crude Oil, degradation rate from 20% or so brings up to nearly 70%, and effect is obvious.

Claims (10)

1. a kind of method that modified clay aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment, it is characterised in that this method bag Include following steps:
Step one:The high fouling recovered water of oil gas field that oily-water seperating equipment is isolated is pumped in mixing pit, by modified clay It is pre-mixed added in mixing pit with high fouling recovered water, forms mixed liquor a;
Step 2:After mixed liquor a is sufficiently mixed, the dirty class material in high fouling recovered water is in modified clay surface modification thing Under the suction-operated of polar group, modified surface of clay is deposited on, mixed liquor b is formed;
Step 3:Mixed liquor b is imported in microbial reaction pond, the organic matter in mixed liquor b degraded using microorganism Mixed liquor c is formed after processing;
Step 4:Mixed liquor c is filtered, water after filter reinjection into reservoir, continuation is used as oilfield injection water.
2. the method that a kind of modified clay according to claim 1 aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment, Characterized in that, being added in step one also into mixing pit has pH value regulator, flocculant and flocculation aid;PH value regulator is used for Mixed liquor a pH value is adjusted 6~8;PH value regulator is sodium hydroxide or sodium hydroxide and calcium oxide according to mass ratio 2:1 The compound of preparation, flocculant is PAC, and flocculation aid is PAM.
3. the method that a kind of modified clay according to claim 1 aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment, Characterized in that, the amount of scale buildup being used in rate-determining steps two in every liter of mixed liquor b of the modification clay added in step one is not high In 50mg.
4. the method that a kind of modified clay according to claim 1 aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment, Characterized in that, the modification clay particle fineness in the step one is higher than 100 mesh, water content is less than 5%, adopted in the high foulings of 1L 50mg~100mg is added in water outlet and is modified clay.
5. the method that a kind of modified clay according to claim 1 aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment, Characterized in that, mixed liquor a incorporation time is at least 20min in the step 2.
6. the method that a kind of modified clay according to claim 1 aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment, Characterized in that, the microbial reaction pond in the step 3 is aerobic reaction tank.
7. the method that a kind of modified clay according to claim 1 aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment, Characterized in that, the filter in the step 4 uses film filter, or quartz filter blooming filter, or quartz sand Filter adds walnut shell filter plus modified fiber ball filter.
8. the method that a kind of modified clay according to claim 1 aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment, Characterized in that, the modification clay in the step one is the montmorillonite after the concentrated sulfuric acid acidification of mass concentration 10%, After drying, being crushed to more than 100 mesh, mix to adsorption saturation, pass through at room temperature with polysaccharose substance or protein solution Filtering, dry, crushing are made.
9. the method that a kind of modified clay according to claim 8 aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment, Characterized in that, the polysaccharose substance is for chitosan and containing hydroxyl or amino polysaccharide derivates, the protein is sugar Albumen and containing hydroxyl or amino protein derivatives, the polysaccharose substance or protein are with two kinds of intercalation and adsorption Mode is supported on montmorillonite surface.
10. the method that a kind of modified clay according to claim 9 aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment, Characterized in that, the load capacity of the polysaccharose substance or protein on montmorillonite surface is:1g montmorillonite area loads 50mg ~247mg polysaccharose substances or protein.
CN201710214238.8A 2017-04-01 2017-04-01 A kind of method that modified clay aids in the high fouling Produced Water In Oil-gas Fields, Ngi of microbiological treatment Pending CN107032557A (en)

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CN110127900A (en) * 2019-05-29 2019-08-16 西安长庆科技工程有限责任公司 A kind of oil field produced water treatment facilities of premix fouling and method
CN115010276A (en) * 2021-03-05 2022-09-06 中国石油化工股份有限公司 Anti-scaling method for oilfield produced water

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