CN104003491A - Method for treating oil extraction sewage containing anionic polyacrylamide - Google Patents
Method for treating oil extraction sewage containing anionic polyacrylamide Download PDFInfo
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- CN104003491A CN104003491A CN201410230243.4A CN201410230243A CN104003491A CN 104003491 A CN104003491 A CN 104003491A CN 201410230243 A CN201410230243 A CN 201410230243A CN 104003491 A CN104003491 A CN 104003491A
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Abstract
The invention relates to the field of oilfield polyacrylamide-containing oil extraction sewage treatment technologies and discloses a method for treating oil extraction sewage containing anionic polyacrylamide. The method comprises the steps of adding a required volume of inorganic flocculant aqueous solution and a required volume of magnetic nanoparticle dispersion solution into the oil extraction sewage containing anionic polyacrylamide, reacting, so as to obtain a reaction solution, and standing the reaction solution under the action of magnetic force, thereby obtaining treated produced fluid. By adopting the method for treating the oil extraction sewage containing anionic polyacrylamide, disclosed by the invention, the content of anionic polyacrylamide in the oil extraction sewage containing anionic polyacrylamide can be lowered, and the separation efficiency of anionic polyacrylamide is 80-90%, so that the separation efficiency of anionic polyacrylamide is increased; the oil extraction sewage treated by adopting the method for treating the oil extraction sewage containing anionic polyacrylamide, disclosed by the invention, can be recycled, so that the treatment cost of the oil extraction sewage is reduced; the method has the advantage that process parameters are easily controlled; in addition, the waste of resources is reduced.
Description
Technical field
the present invention relates to oil field containing polymer sewage from oil extraction processing technology field, is a kind for the treatment of process containing anionic polyacrylamide oil extraction-generated waste water.
Background technology
it is that anionic polyacrylamide carries out the displacement of reservoir oil that current China polymer displacement of reservoir oil tech extensively adopts polymkeric substance, because it has good water-soluble and thickening property, can increase substantially the recovery ratio of crude oil, therefore anionic polyacrylamide is widely used in driving oil recovery poly-, but has also produced a large amount of oil extraction-generated waste waters.In oil extraction-generated waste water, the content of anionic polyacrylamide is high, viscosity is large and emulsification degree is high, while thus oil extraction-generated waste water being carried out to oily water separation, anionic polyacrylamide is difficult to separate from oil extraction-generated waste water, there is the problem of oily water separation difficulty, so contain the oil extraction-generated waste water of anionic polyacrylamide as a new difficult problem of disposing polluted water in oil, while adopting at present traditional produced water treatment to process oil extraction-generated waste water, oil extraction-generated waste water after treatment is difficult to recycle, especially along with adopting the expansion of polymer flooding oil-extraction area, the quantity of oil extraction-generated waste water is also in continuous increase, in the time of needs discharge unit oil extraction-generated waste water, be difficult to reach discharge index.
at present, adopt polymer-bearing waste-water treatment agent to process oil extraction-generated waste water, research for polymer-bearing waste-water treatment agent mainly concentrates on inorganic polymer flocculant, such as polymerize aluminum chloride etc., adopt inorganic polymer flocculant to process inorganic ion content in the mud that the weak point existing is to obtain after oil extraction-generated waste water processing to oil extraction-generated waste water high, sludge dewatering difficulty, has caused secondary pollution.To adopt cationic polyacrylamide to carry out sewage disposal to oil extraction-generated waste water in addition, cationic polyacrylamide is to having good purifying water effect containing anionic polyacrylamide oil extraction-generated waste water, and have advantages of that dosage is few and flocculating effect is good, but, the high cost of cationic polyacrylamide, economic feasibility is poor, and easily in treatment tank, become cake, cannot reclaim cationic polyacrylamide, cause the waste of resource, seriously restrict the widespread use of cationic polyacrylamide.
Summary of the invention
the invention provides a kind for the treatment of process containing anionic polyacrylamide oil extraction-generated waste water, overcome the deficiency of above-mentioned prior art, it can effectively solve the problem of the high and waste resource of the cost that easily causes secondary pollution, oil extraction-generated waste water processing that existing polymer-bearing waste-water treatment agent exists in the process that oil extraction-generated waste water is processed.
technical scheme of the present invention realizes by following measures: a kind for the treatment of process containing anionic polyacrylamide oil extraction-generated waste water, carry out in the steps below: the first step, is mixed with by soluble in water appropriate inorganic flocculating agent the inorganic flocculating agent aqueous solution that quality-volumetric concentration is 10g/L to 30g/L, second step, under whipped state, to containing, in anionic polyacrylamide oil extraction-generated waste water, to add the inorganic flocculating agent aqueous solution of requirement and mass percent be to obtain reaction solution after 3% to 5% magnetic nanoparticle dispersion liquid reaction, wherein: every liter contains in anionic polyacrylamide oil extraction-generated waste water, the dosage that adds of inorganic flocculating agent is 50mg to 500mg, the dosage that adds of magnetic nanoparticle is 50mg to 300mg, pH value in reaction is 6.5 to 8, the temperature of reaction is 25 DEG C to 65 DEG C, stirring velocity is 50r/min to 300r/min, churning time is 10min to 30min, the 3rd step obtains Produced Liquid treatment solution after standing 2min to 10min by reaction solution under magneticaction.
the further optimization and/or improvements to foregoing invention technical scheme below:
above-mentioned magnetic nanoparticle dispersion liquid can be magnetic Nano ferric oxide particles dispersion liquid, magnetic Nano ferric oxide particles dispersion liquid obtains as follows: the first step, in the rare nitric acid that is 1mol/L to 5mol/L to volumetric molar concentration, add magnetic Nano ferriferrous oxide particles and stir after 3 hours to 4 hours and obtain primary first-order equation liquid, wherein: the parts by weight of magnetic Nano ferriferrous oxide particles are 1 part, the parts by weight of rare nitric acid are 10 parts to 20 parts; Second step, be to obtain mixed reaction solution after the iron nitrate aqueous solution of 1mol/L to 3mol/L to adding volumetric molar concentration in primary first-order equation liquid, mixed reaction solution is boiled and obtains boil liquid stir after 2 hours to 3 hours and generated in advance liquid of hybrid reaction, wherein: the mol ratio of rare nitric acid and iron nitrate is 1:0.5 to 2; The 3rd step, will generate in advance liquid and sequentially after overcooling and washing, obtain magnetic Nano ferric oxide particles, wherein: generate in advance liquid and be cooled to 20 DEG C to 30 DEG C; The 4th step, magnetic Nano ferric oxide particles is scattered in and in distilled water, obtains magnetic Nano ferric oxide particles dispersion liquid, then, in magnetotropism nano-sized iron oxide particle dispersion, add the tetramethylammonium hydroxide aqueous solution of mass percent 10% to 30% and stir after make magnetic Nano ferric oxide particles mass percent be 3% to 5% magnetic nanoparticle dispersion liquid, wherein: distilled water and mass percent are that the volume ratio of 10% to 30% tetramethylammonium hydroxide aqueous solution is 30 to 80:1.
above-mentioned magnetic nanoparticle dispersion liquid can be magnetic Nano ferriferrous oxide particles dispersion liquid, magnetic Nano ferriferrous oxide particles dispersion liquid obtains as follows: the first step, appropriate Iron dichloride tetrahydrate is dissolved in and in distilled water, obtains the ferrous chloride aqueous solution that volumetric molar concentration is 1.2mol/L to 2mol/L, appropriate ferric chloride hexahydrate is dissolved in and in distilled water, obtains the ferric chloride in aqueous solution that volumetric molar concentration is 0.5 mol/L to 2 mol/L, then the ferrous chloride aqueous solution that is 1:2.5 to 4.5 by volume ratio obtains mixed aqueous solution after mixing with ferric chloride in aqueous solution, mixed aqueous solution after disperseing, the ultrasonic wave of 3 minutes to 5 minutes is obtained to dispersion liquid, second step, adds appropriate ammoniacal liquor after stirring in distilled water and obtains ammonia aqueous solution, wherein: the volume ratio of ammoniacal liquor and distilled water is 7:70 to 90, the 3rd step, by dispersion liquid add stir after ammonia aqueous solution and react after obtain precipitation and the supernatant liquor containing magnetic Nano ferriferrous oxide particles, wherein the volume ratio of dispersion liquid and ammonia aqueous solution is 3:20 to 30, the 4th step, to add in distilled water and be precipitated dispersion liquid after dispersion containing the precipitation of magnetic Nano ferriferrous oxide particles, then, after being screened under magneticaction, precipitation dispersion liquid obtains magnetic Nano ferriferrous oxide particles, wherein: the add-on of distilled water is identical with the add-on of distilled water in second step, the 5th step, the magnetic Nano ferriferrous oxide particles that is 3 parts to 5 parts by parts by weight is scattered in that to obtain mass percent after the distilled water of 100 parts be 3% to 5% magnetic Nano ferriferrous oxide particles dispersion liquid.
above-mentioned inorganic flocculating agent can be one or more in Aluminum Chloride Hexahydrate, iron vitriol, polymerize aluminum chloride, Iron trichloride hexahydrate.
above-mentioned containing in anionic polyacrylamide oil extraction-generated waste water, the mass ratio of anionic polyacrylamide can be 3/10000ths to thousandth.
above-mentioned containing in anionic polyacrylamide oil extraction-generated waste water, quality-the volumetric concentration of sodium-chlor can be 1 mg/L to 2000mg/L, quality-the volumetric concentration of calcium chloride is 5 mg/L to 50mg/L, quality-the volumetric concentration of magnesium chloride is 1 mg/L to 30mg/L, quality-the volumetric concentration of sodium carbonate is 1mg/L to 100mg/L, and the quality-volumetric concentration of crude oil is 300 mg/L to 4000mg/L.
the present invention adopts containing the treatment process of anionic polyacrylamide oil extraction-generated waste water can reduce the content containing anionic polyacrylamide in anionic polyacrylamide oil extraction-generated waste water, the separation efficiency of anionic polyacrylamide is 80% to 90%, improve the separation efficiency of anionic polyacrylamide, adopt of the present invention can recycle containing the oil extraction-generated waste water after the disposal methods of anionic polyacrylamide oil extraction-generated waste water, reduce the processing cost of oil extraction-generated waste water, and have advantages of that processing parameter is easy to control, in addition, reduced the waste of resource.
Embodiment
the present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and practical situation.
below in conjunction with embodiment, the invention will be further described:
embodiment 1: should, containing the treatment process of anionic polyacrylamide oil extraction-generated waste water, carry out in the steps below: the first step, is mixed with by soluble in water appropriate inorganic flocculating agent the inorganic flocculating agent aqueous solution that quality-volumetric concentration is 10g/L to 30g/L, second step, under whipped state, to containing, in anionic polyacrylamide oil extraction-generated waste water, to add the inorganic flocculating agent aqueous solution of requirement and mass percent be to obtain reaction solution after 3% to 5% magnetic nanoparticle dispersion liquid reaction, wherein: every liter contains in anionic polyacrylamide oil extraction-generated waste water, the dosage that adds of inorganic flocculating agent is 50mg to 500mg, the dosage that adds of magnetic nanoparticle is 50mg to 300mg, pH value in reaction is 6.5 to 8, the temperature of reaction is 25 DEG C to 65 DEG C, stirring velocity is 50r/min to 300r/min, churning time is 10min to 30min, the 3rd step obtains Produced Liquid treatment solution after standing 2min to 10min by reaction solution under magneticaction.The use of inorganic flocculating agent and magnetic nanoparticle can strengthen flocculating effect, anionic polyacrylamide can be separated from contain anionic polyacrylamide oil extraction-generated waste water, improve the separation efficiency of anionic polyacrylamide, and reduced the processing cost of oil extraction-generated waste water; The temperature of reaction of the treatment process containing anionic polyacrylamide oil extraction-generated waste water of the present invention is lower in addition, has advantages of that processing parameter (temperature) is easy to control.
embodiment 2: should, containing the treatment process of anionic polyacrylamide oil extraction-generated waste water, carry out in the steps below: the first step, is mixed with by soluble in water appropriate inorganic flocculating agent the inorganic flocculating agent aqueous solution that quality-volumetric concentration is 10g/L or 30g/L, second step, under whipped state, to containing, in anionic polyacrylamide oil extraction-generated waste water, to add the inorganic flocculating agent aqueous solution of requirement and mass percent be to obtain reaction solution after 3% or 5% magnetic nanoparticle dispersion liquid reaction, wherein: every liter contains in anionic polyacrylamide oil extraction-generated waste water, the dosage that adds of inorganic flocculating agent is 50mg or 500mg, the dosage that adds of magnetic nanoparticle is 50mg or 300mg, pH value in reaction is 6.5 or 8, the temperature of reaction is 25 DEG C or 65 DEG C, stirring velocity is 50r/min or 300r/min, churning time is 10min or 30min, the 3rd step, obtains Produced Liquid treatment solution after reaction solution is left standstill to 2min or 10min under magneticaction.
embodiment 3: should, containing the treatment process of anionic polyacrylamide oil extraction-generated waste water, carry out in the steps below: the first step, is mixed with by soluble in water appropriate inorganic flocculating agent the inorganic flocculating agent aqueous solution that quality-volumetric concentration is 10g/L; Second step, under whipped state, obtain reaction solution to containing after adding the inorganic flocculating agent aqueous solution of requirement and magnetic nanoparticle dispersion liquid that mass percent is 3% reaction in anionic polyacrylamide oil extraction-generated waste water, wherein: every liter contains in anionic polyacrylamide oil extraction-generated waste water, the dosage that adds of inorganic flocculating agent is 50mg, the dosage that adds of magnetic nanoparticle is 50mg, pH value in reaction is 6.5, the temperature of reaction is 25 DEG C, stirring velocity is 50r/min, and churning time is 10min; The 3rd step obtains Produced Liquid treatment solution after standing 2min by reaction solution under magneticaction.The treatment process containing anionic polyacrylamide oil extraction-generated waste water described in employing the present embodiment makes to reach 80% containing the separation efficiency of the anionic polyacrylamide in anionic polyacrylamide oil extraction-generated waste water.
embodiment 4: should, containing the treatment process of anionic polyacrylamide oil extraction-generated waste water, carry out in the steps below: the first step, is mixed with by soluble in water appropriate inorganic flocculating agent the inorganic flocculating agent aqueous solution that quality-volumetric concentration is 30g/L; Second step, under whipped state, obtain reaction solution to containing after adding the inorganic flocculating agent aqueous solution of requirement and magnetic nanoparticle dispersion liquid that mass percent is 5% reaction in anionic polyacrylamide oil extraction-generated waste water, wherein: every liter contains in anionic polyacrylamide oil extraction-generated waste water, the dosage that adds of inorganic flocculating agent is 500mg, the dosage that adds of magnetic nanoparticle is 300mg, pH value in reaction is 8, the temperature of reaction is 65 DEG C, stirring velocity is 300r/min, and churning time is 30min; The 3rd step obtains Produced Liquid treatment solution after standing 10min by reaction solution under magneticaction.The treatment process containing anionic polyacrylamide oil extraction-generated waste water described in employing the present embodiment makes to reach 90% containing the separation efficiency of the anionic polyacrylamide in anionic polyacrylamide oil extraction-generated waste water.
embodiment 5: be with the difference of above-described embodiment, magnetic nanoparticle dispersion liquid is magnetic Nano ferric oxide particles dispersion liquid, magnetic Nano ferric oxide particles dispersion liquid obtains as follows: the first step, in the rare nitric acid that is 1mol/L to 5mol/L to volumetric molar concentration, add magnetic Nano ferriferrous oxide particles and stir after 3 hours to 4 hours and obtain primary first-order equation liquid, wherein: the parts by weight of magnetic Nano ferriferrous oxide particles are 1 part, the parts by weight of rare nitric acid are 10 parts to 20 parts; Second step, be to obtain mixed reaction solution after the iron nitrate aqueous solution of 1mol/L to 3mol/L to adding volumetric molar concentration in primary first-order equation liquid, mixed reaction solution is boiled and obtains boil liquid stir after 2 hours to 3 hours and generated in advance liquid of hybrid reaction, wherein: the mol ratio of rare nitric acid and iron nitrate is 1:0.5 to 2; The 3rd step, will generate in advance liquid and sequentially after overcooling and washing, obtain magnetic Nano ferric oxide particles, wherein: generate in advance liquid and be cooled to 20 DEG C to 30 DEG C; The 4th step, magnetic Nano ferric oxide particles is scattered in and in distilled water, obtains magnetic Nano ferric oxide particles dispersion liquid, then, in magnetotropism nano-sized iron oxide particle dispersion, add the tetramethylammonium hydroxide aqueous solution of mass percent 10% to 30% and stir after make magnetic Nano ferric oxide particles mass percent be 3% to 5% magnetic nanoparticle dispersion liquid, wherein: distilled water and mass percent are that the volume ratio of 10% to 30% tetramethylammonium hydroxide aqueous solution is 30 to 80:1.
embodiment 6: be with the difference of above-described embodiment, magnetic nanoparticle dispersion liquid is magnetic Nano ferriferrous oxide particles dispersion liquid, magnetic Nano ferriferrous oxide particles dispersion liquid obtains as follows: the first step, appropriate Iron dichloride tetrahydrate is dissolved in and in distilled water, obtains the ferrous chloride aqueous solution that volumetric molar concentration is 1.2mol/L to 2mol/L, appropriate ferric chloride hexahydrate is dissolved in and in distilled water, obtains the ferric chloride in aqueous solution that volumetric molar concentration is 0.5 mol/L to 2 mol/L, then the ferrous chloride aqueous solution that is 1:2.5 to 4.5 by volume ratio obtains mixed aqueous solution after mixing with ferric chloride in aqueous solution, mixed aqueous solution after disperseing, the ultrasonic wave of 3 minutes to 5 minutes is obtained to dispersion liquid, second step, adds appropriate ammoniacal liquor after stirring in distilled water and obtains ammonia aqueous solution, wherein: the volume ratio of ammoniacal liquor and distilled water is 7:70 to 90, the 3rd step, by dispersion liquid add stir after ammonia aqueous solution and react after obtain precipitation and the supernatant liquor containing magnetic Nano ferriferrous oxide particles, wherein the volume ratio of dispersion liquid and ammonia aqueous solution is 3:20 to 30, the 4th step, to add in distilled water and be precipitated dispersion liquid after dispersion containing the precipitation of magnetic Nano ferriferrous oxide particles, then, after being screened under magneticaction, precipitation dispersion liquid obtains magnetic Nano ferriferrous oxide particles, wherein: the add-on of distilled water is identical with the add-on of distilled water in second step, the 5th step, the magnetic Nano ferriferrous oxide particles that is 3 parts to 5 parts by parts by weight is scattered in that to obtain mass percent after the distilled water of 100 parts be 3% to 5% magnetic Nano ferriferrous oxide particles dispersion liquid.
embodiment 7: be with the difference of above-described embodiment, inorganic flocculating agent is one or more in Aluminum Chloride Hexahydrate, iron vitriol, polymerize aluminum chloride, Iron trichloride hexahydrate.
embodiment 8: be with the difference of above-described embodiment, contain in anionic polyacrylamide oil extraction-generated waste water, the mass ratio of anionic polyacrylamide is 3/10000ths to thousandth.
embodiment 9: be with the difference of above-described embodiment, contain in anionic polyacrylamide oil extraction-generated waste water, quality-the volumetric concentration of sodium-chlor is 1 mg/L to 2000mg/L, quality-the volumetric concentration of calcium chloride is 5 mg/L to 50mg/L, quality-the volumetric concentration of magnesium chloride is 1 mg/L to 30mg/L, quality-the volumetric concentration of sodium carbonate is 1mg/L to 100mg/L, and the quality-volumetric concentration of crude oil is 300 mg/L to 4000mg/L.
described in employing the above embodiment of the present invention, carry out evaluation test containing the treatment effect of the Produced Liquid treatment solution obtaining after the disposal methods of anionic polyacrylamide oil extraction-generated waste water.
taking not through the water sample of any sewage disposal as blank sample, taking the oil extraction-generated waste water through the disposal methods containing anionic polyacrylamide oil extraction-generated waste water of the present invention as test sample, with tap water for water sample from the beginning, measure the blank sample of 100ml to 500ml, first use the suspended substance of common funnel elimination blank sample, then, carry out decompress filter with the suction filtration instrument that the aperture of millipore filtration is 0.45 μ m, record the suction filtration time of blank sample, the suction filtration time of blank sample is with t
max
represent; Measure the test sample of 100ml to 500ml, first with the suspended substance of common funnel elimination test sample, then, carry out decompress filter with the suction filtration instrument that the aperture of millipore filtration is 0.45 μ m, the suction filtration time of record test sample, the suction filtration time of testing sample represents with t; Measure the water sample from the beginning of 100ml to 500ml, first use the common funnel elimination suspended substance of water sample from the beginning, then, carry out decompress filter with the suction filtration instrument that the aperture of millipore filtration is 0.45 μ m, record the suction filtration time of water sample from the beginning, the suction filtration time of water sample is with t from the beginning
min
represent (if meet t
min
﹤ t ﹤ t
max
, and if t value more approaches t
min
, illustrate that the treatment effect to containing anionic polyacrylamide oil extraction-generated waste water is relatively good, otherwise treatment effect is poor).
can obtain blank sample, test sample and the suction filtration time of water sample is respectively t from the beginning by evaluation test
max
=40 minutes to 60 minutes, t=20 second to 60 second, t
min
=20 seconds to 30 seconds.
from the suction filtration time of each sample of evaluation test, adopt of the present invention containing the suction filtration time of the oil extraction-generated waste water suction filtration time after the disposal methods of anionic polyacrylamide oil extraction-generated waste water far less than blank sample, and adopt the suction filtration containing the oil extraction-generated waste water suction filtration time after the disposal methods of anionic polyacrylamide oil extraction-generated waste water and water sample from the beginning of the present invention around, illustrate and adopt the content containing the anionic polyacrylamide in the oil extraction-generated waste water after the disposal methods of anionic polyacrylamide oil extraction-generated waste water of the present invention to greatly reduce.
in sum, adopt the treatment process containing anionic polyacrylamide oil extraction-generated waste water of the present invention can reduce the content containing anionic polyacrylamide in anionic polyacrylamide oil extraction-generated waste water, the separation efficiency of anionic polyacrylamide is 80% to 90%, improve the separation efficiency of anionic polyacrylamide, adopt of the present invention can recycle containing the oil extraction-generated waste water after the disposal methods of anionic polyacrylamide oil extraction-generated waste water, reduce the processing cost of oil extraction-generated waste water, and have advantages of that processing parameter is easy to control, in addition, reduce the waste of resource.
above technical characterictic has formed embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
Claims (10)
1. containing the treatment process of anionic polyacrylamide oil extraction-generated waste water, it is characterized in that carrying out in the steps below: the first step, is mixed with by soluble in water appropriate inorganic flocculating agent the inorganic flocculating agent aqueous solution that quality-volumetric concentration is 10g/L to 30g/L, second step, under whipped state, to containing, in anionic polyacrylamide oil extraction-generated waste water, to add the inorganic flocculating agent aqueous solution of requirement and mass percent be to obtain reaction solution after 3% to 5% magnetic nanoparticle dispersion liquid reaction, wherein: every liter contains in anionic polyacrylamide oil extraction-generated waste water, the dosage that adds of inorganic flocculating agent is 50mg to 500mg, the dosage that adds of magnetic nanoparticle is 50mg to 300mg, pH value in reaction is 6.5 to 8, the temperature of reaction is 25 DEG C to 65 DEG C, stirring velocity is 50r/min to 300r/min, churning time is 10min to 30min, the 3rd step obtains Produced Liquid treatment solution after standing 2min to 10min by reaction solution under magneticaction.
2. the treatment process containing anionic polyacrylamide oil extraction-generated waste water according to claim 1, it is characterized in that magnetic nanoparticle dispersion liquid is magnetic Nano ferric oxide particles dispersion liquid, magnetic Nano ferric oxide particles dispersion liquid obtains as follows: the first step, in the rare nitric acid that is 1mol/L to 5mol/L to volumetric molar concentration, add magnetic Nano ferriferrous oxide particles and stir after 3 hours to 4 hours and obtain primary first-order equation liquid, wherein: the parts by weight of magnetic Nano ferriferrous oxide particles are 1 part, the parts by weight of rare nitric acid are 10 parts to 20 parts; Second step, be to obtain mixed reaction solution after the iron nitrate aqueous solution of 1mol/L to 3mol/L to adding volumetric molar concentration in primary first-order equation liquid, mixed reaction solution is boiled and obtains boil liquid stir after 2 hours to 3 hours and generated in advance liquid of hybrid reaction, wherein: the mol ratio of rare nitric acid and iron nitrate is 1:0.5 to 2; The 3rd step, will generate in advance liquid and sequentially after overcooling and washing, obtain magnetic Nano ferric oxide particles, wherein: generate in advance liquid and be cooled to 20 DEG C to 30 DEG C; The 4th step, magnetic Nano ferric oxide particles is scattered in and in distilled water, obtains magnetic Nano ferric oxide particles dispersion liquid, then, in magnetotropism nano-sized iron oxide particle dispersion, add the tetramethylammonium hydroxide aqueous solution of mass percent 10% to 30% and stir after make magnetic Nano ferric oxide particles mass percent be 3% to 5% magnetic nanoparticle dispersion liquid, wherein: distilled water and mass percent are that the volume ratio of 10% to 30% tetramethylammonium hydroxide aqueous solution is 30 to 80:1.
3. the treatment process containing anionic polyacrylamide oil extraction-generated waste water according to claim 1, it is characterized in that magnetic nanoparticle dispersion liquid is magnetic Nano ferriferrous oxide particles dispersion liquid, magnetic Nano ferriferrous oxide particles dispersion liquid obtains as follows: the first step, appropriate Iron dichloride tetrahydrate is dissolved in and in distilled water, obtains the ferrous chloride aqueous solution that volumetric molar concentration is 1.2mol/L to 2mol/L, appropriate ferric chloride hexahydrate is dissolved in and in distilled water, obtains the ferric chloride in aqueous solution that volumetric molar concentration is 0.5 mol/L to 2 mol/L, then the ferrous chloride aqueous solution that is 1:2.5 to 4.5 by volume ratio obtains mixed aqueous solution after mixing with ferric chloride in aqueous solution, mixed aqueous solution after disperseing, the ultrasonic wave of 3 minutes to 5 minutes is obtained to dispersion liquid, second step, adds appropriate ammoniacal liquor after stirring in distilled water and obtains ammonia aqueous solution, wherein: the volume ratio of ammoniacal liquor and distilled water is 7:70 to 90, the 3rd step, by dispersion liquid add stir after ammonia aqueous solution and react after obtain precipitation and the supernatant liquor containing magnetic Nano ferriferrous oxide particles, wherein the volume ratio of dispersion liquid and ammonia aqueous solution is 3:20 to 30, the 4th step, to add in distilled water and be precipitated dispersion liquid after dispersion containing the precipitation of magnetic Nano ferriferrous oxide particles, then, after being screened under magneticaction, precipitation dispersion liquid obtains magnetic Nano ferriferrous oxide particles, wherein: the add-on of distilled water is identical with the add-on of distilled water in second step, the 5th step, the magnetic Nano ferriferrous oxide particles that is 3 parts to 5 parts by parts by weight is scattered in that to obtain mass percent after the distilled water of 100 parts be 3% to 5% magnetic Nano ferriferrous oxide particles dispersion liquid.
4. according to the treatment process containing anionic polyacrylamide oil extraction-generated waste water described in claim 1 or 2 or 3, it is characterized in that inorganic flocculating agent is one or more in Aluminum Chloride Hexahydrate, iron vitriol, polymerize aluminum chloride, Iron trichloride hexahydrate.
According to described in claim 1 or 2 or 3 containing the treatment process of anionic polyacrylamide oil extraction-generated waste water, it is characterized in that containing in anionic polyacrylamide oil extraction-generated waste water, the mass ratio of anionic polyacrylamide is 3/10000ths to thousandth.
6. the treatment process containing anionic polyacrylamide oil extraction-generated waste water according to claim 4, is characterized in that containing in anionic polyacrylamide oil extraction-generated waste water, and the mass ratio of anionic polyacrylamide is 3/10000ths to thousandth.
7. according to the treatment process containing anionic polyacrylamide oil extraction-generated waste water described in claim 1 or 2 or 3, it is characterized in that containing in anionic polyacrylamide oil extraction-generated waste water, quality-the volumetric concentration of sodium-chlor is 1 mg/L to 2000mg/L, quality-the volumetric concentration of calcium chloride is 5 mg/L to 50mg/L, quality-the volumetric concentration of magnesium chloride is 1 mg/L to 30mg/L, quality-the volumetric concentration of sodium carbonate is 1mg/L to 100mg/L, and the quality-volumetric concentration of crude oil is 300 mg/L to 4000mg/L.
8. the treatment process containing anionic polyacrylamide oil extraction-generated waste water according to claim 4, it is characterized in that containing in anionic polyacrylamide oil extraction-generated waste water, quality-the volumetric concentration of sodium-chlor is 1 mg/L to 2000mg/L, quality-the volumetric concentration of calcium chloride is 5 mg/L to 50mg/L, quality-the volumetric concentration of magnesium chloride is 1 mg/L to 30mg/L, quality-the volumetric concentration of sodium carbonate is 1mg/L to 100mg/L, and the quality-volumetric concentration of crude oil is 300 mg/L to 4000mg/L.
9. the treatment process containing anionic polyacrylamide oil extraction-generated waste water according to claim 5, it is characterized in that containing in anionic polyacrylamide oil extraction-generated waste water, quality-the volumetric concentration of sodium-chlor is 1 mg/L to 2000mg/L, quality-the volumetric concentration of calcium chloride is 5 mg/L to 50mg/L, quality-the volumetric concentration of magnesium chloride is 1 mg/L to 30mg/L, quality-the volumetric concentration of sodium carbonate is 1mg/L to 100mg/L, and the quality-volumetric concentration of crude oil is 300 mg/L to 4000mg/L.
10. the treatment process containing anionic polyacrylamide oil extraction-generated waste water according to claim 6, it is characterized in that containing in anionic polyacrylamide oil extraction-generated waste water, quality-the volumetric concentration of sodium-chlor is 1 mg/L to 2000mg/L, quality-the volumetric concentration of calcium chloride is 5 mg/L to 50mg/L, quality-the volumetric concentration of magnesium chloride is 1 mg/L to 30mg/L, quality-the volumetric concentration of sodium carbonate is 1mg/L to 100mg/L, and the quality-volumetric concentration of crude oil is 300 mg/L to 4000mg/L.
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| CN105923728A (en) * | 2016-06-20 | 2016-09-07 | 江门市江海区炜洁净水材料有限公司 | Diatom water clarifying agent |
| CN105923730A (en) * | 2016-06-20 | 2016-09-07 | 江门市江海区炜洁净水材料有限公司 | Nanometer water clarifying agent |
| CN107746171A (en) * | 2016-11-25 | 2018-03-02 | 嘉兴锦润环保科技有限公司 | A kind of High Efficiency Agent of Sludge Dehydration |
| CN106745409A (en) * | 2017-01-24 | 2017-05-31 | 内蒙古君子津环境科技有限公司 | A kind of preparation method of the inorganic neutral powder preparation bridging agent of the training of channel |
| CN107055919A (en) * | 2017-02-10 | 2017-08-18 | 刘海红 | A kind of processing method of the offshore oil production sewage based on magnetic micro-beads enhanced treatment primary stage |
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| CN108793575A (en) * | 2018-07-13 | 2018-11-13 | 黄秋凤 | A kind of environmental protecting device of use group containing bis ether magnetism environmental friendly material |
| WO2021078574A1 (en) * | 2019-10-23 | 2021-04-29 | IFP Energies Nouvelles | Method for separating polymers in an aqueous fluid by means of magnetisable particles and a zirconium salt |
| WO2021078573A1 (en) * | 2019-10-23 | 2021-04-29 | IFP Energies Nouvelles | Method for separating polymers in an aqueous fluid by means of magnetisable particles and a trivalent salt of iron or aluminium |
| FR3102475A1 (en) * | 2019-10-23 | 2021-04-30 | IFP Energies Nouvelles | Process for separating polymers in an aqueous fluid using magnetizable particles and a trivalent salt of iron or aluminum |
| FR3102474A1 (en) * | 2019-10-23 | 2021-04-30 | IFP Energies Nouvelles | Process for separating polymers in an aqueous fluid using magnetizable particles and a zirconium salt |
| CN113233688A (en) * | 2021-04-29 | 2021-08-10 | 中国矿业大学(北京) | Method for treating mine water |
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