CN106242134A - A kind of oily water purifying treatment method - Google Patents
A kind of oily water purifying treatment method Download PDFInfo
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- CN106242134A CN106242134A CN201610251125.0A CN201610251125A CN106242134A CN 106242134 A CN106242134 A CN 106242134A CN 201610251125 A CN201610251125 A CN 201610251125A CN 106242134 A CN106242134 A CN 106242134A
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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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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
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- B01J2220/603—Use in several different columns serially disposed columns
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- 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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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- 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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- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The present invention relates to Water warfare field, disclose a kind of oily water purifying treatment method, comprise the following steps: 1) oily water is stood, and remove particulate contamination by filter screen；2) oily water after step 1) processes is loaded in foam separating tower carries out bubbling process, and separate bubble foam layer, take off a layer oily water；3) by through step 2) process after oily water be passed through oil-water separation tower in carry out oil-water separation；Described oil-water separation tower uses composite aerogel as filler.The inventive method efficiency of deoiling is high, it is not necessary to reclaims cleanser, and water body will not be caused secondary pollution.
Description
Technical field
The present invention relates to Water warfare field, particularly relate to a kind of oily water purifying treatment method.
Background technology
Along with the fast development of China's economy, at present, domestic consumption and industrial water consumption are all in cumulative year after year, and the wastewater flow rate discharged therewith is also being continuously increased.In these waste water, the most all contain greasy dirt.In order to protect day by day destroyed environment, before these oily waters are discharged, it is necessary to carry out purified treatment.Existing oily water purification method mainly has flocculence, physisorphtion, microbial degradation method etc..Wherein the application of flocculence is relatively broad.
As the Chinese patent of Application No. 201310366271.4 discloses a kind of oily water cleanser and preparation method thereof, this oily water cleanser in terms of mass parts containing following component: aluminium polychlorid 15～30 parts, PAMA 5～12 parts, Calx 7～16 parts, sodium hypochlorite 3～10 parts, sodium lignin sulfonate 3～8 parts, diammonium phosphate 3～7 parts, benzene sulfonic acid sodium salt 5～15 parts.The oily water cleanser that this invention provides has the strongest flocculation, and has good bactericidal effect.
Coagulant is processed as the Chinese patent of Application No. 201410380852.8 discloses a kind of condensed oil sewage, include following components in percentage by weight: 15.0～the aluminium polychlorid of 25.0%, 5.0～the poly-silicon zinc sulfate of 10.0%, 0.5～the PDDA of 1.0% and 5.0～the 3.0G polyamide-amide of 10.0%.Its preparation method is: by weight percentage, first aluminium polychlorid and poly-silicon zinc sulfate are added to the water, add PDDA and 3.0G polyamide-amide after dissolving completely, stir, regulation pH value, to 3.0～5.0, obtains condensed oil sewage and processes coagulant.Its advantage is: consumption is few, cheap, and is applicable to the process technique of multifunctional rotary flow reactor；Have rp demulsification and water purification effect concurrently, Heavy Oil High Temperature sewage is had good clean-up effect；Its preparation method is simple.
Although greasy dirt can be removed from water by method to a certain extent that purify oily water above by flocculence, but it deoils relatively inefficient, and after flocculation, flocculent substance the most easily remains in water body；And need when purifying to add in water and various be dissolved in water itself and the chemical reagent that is not easily recycled, while deoiling, easily cause secondary pollution.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides one efficiency of deoiling high, it is not necessary to cleanser is reclaimed, and water body will not be caused the oily water purifying treatment method of secondary pollution.
The concrete technical scheme of the present invention is: a kind of oily water purifying treatment method, comprises the following steps:
1) oily water is stood, and remove particulate contamination by filter screen.
First oily water stood, filter；On the one hand particulate contamination can be removed to purify water, on the other hand removing of particulate contamination the foam separation in subsequent step and oil-water separation can be conducive to: if there being the existence of a large amount of granule foreign in foam separation, the foaming characteristic of oily water can be affected, thus cause cannot the emulsifying agent in oily water being separated；And in oil-water separation, if oily water exists a large amount of granule foreign, filler can be resulted in blockage, not only affect the oil absorbing effect of filler, and the permeability of filler can be reduced, cause water speed to reduce.
2) oily water after step 1) processes is loaded in foam separating tower carries out bubbling process, and separate bubble foam layer, take off a layer oily water.
Owing to oily water usually containing the most various emulsifying agents, these emulsifying agents with surface activity exist for a long time with in water body, oily water is made to define relatively stable oil-in-water emulsion, if the filler in the most practical oil-water separation tower carries out oil suction to it, due to profit one, adsorption efficiency is relatively low.In order to solve this technical problem, the present invention is after removing particulate contamination to oily water, then it is carried out foam separation.Owing to emulsifying agent has the strongest surface activity, after liquid produces bubble, emulsifying agent can concentrate on gas-liquid interface (foam surface), if foam is collected, it is possible to effectively reduce the content of emulsifying agent in oily water, thus the emulsifiability of oily water is substantially reduced, oil-in-water system is disintegrated, oil phase is separated from the water, finally re-uses filler and oily water is carried out oil suction, and purification efficiency is largely increased.
3) by through step 2) process after oily water be passed through oil-water separation tower in carry out oil-water separation；Described oil-water separation tower uses composite aerogel as filler.
Carry out oil-water separation to removing the oily water after emulsifying agent, owing to oil-water separation degree is high, utilize the method for physical absorption to carry out oil suction, not only water body will not be caused secondary pollution, and good purification, efficiency is high.
The preparation process of described composite aerogel includes: butyl titanate, CNT, brucite fiber, galapectite nanofiber pipe, dehydrated alcohol, toluene 1:0.1-0.2:0.1-0.2:0.1-0.2:10-30:0.01-0.03 are in mass ratio mixed, obtained solution A；The glacial acetic acid of dehydrated alcohol, 0.5-1.5mol/L is mixed with water 10-20:4-6:1 in mass ratio, obtained solution B；Solution A is carried out supersonic oscillations process at 50-60 DEG C, solution B is added drop-wise in the solution A of 2 times of quality；Sol solutions is prepared after stirring 1-2h；By the most aging for sol solutions 24-48h, then in sol solutions, add dehydrated alcohol carry out solvent displacement 24-48h, in sol solutions, add normal hexane the most again carry out solvent displacement 24-48h, it is separated off normal hexane, obtain wet gel, with the mixed solution of organo-silicon compound Yu normal hexane, wet gel is carried out hydrophobically modified, eventually pass dried prepared composite aerogel.
Aeroge is the material that the density that finds the most in the world is minimum, and has the porosity of superelevation, wherein being most widely used of aerosil.The preparation process of aeroge is generally divided into colloidal sol and prepares, gel preparation and drying steps.After prepared gel, containing a large amount of holes and three-dimensional net structure in gel, under gel state, owing to there being the filling of liquid to support, its structure is relatively stable.But during gel drying is aeroge, due to the loss of liquid, and the frame strength of gel is the highest, easily caves in, it is not easy to shape, after causing becoming aeroge, its porosity declines.
Composite aerogel prepared by the present invention, use CNT, brucite fiber, galapectite nanofiber pipes etc. are as matrix material, CNT is the tubular material of nano-scale, galapectite nanofiber pipe is the inorganic silicate hollow fiber conduit of nano-scale, brucite fiber also has nano-scale, after above-mentioned material and titanium dioxide carry out being combined, three-dimensional net structure can be played a supporting role under gel state, in dry run, its structure is not caved in, ensure that porosity, and CNT, brucite fiber, galapectite nanofiber pipe all has heat-resisting quantity, in dry run, stability is strong, after being prepared as composite aerogel simultaneously, the intensity of aeroge can be significantly increased.
In addition, owing to CNT, galapectite nanofiber pipe self also have hollow structure, after compound with titanium dioxide, the network-like cross-linked structure of complexity can be formed, can't too much reduce the porosity of composite aerogel, and owing to the hole of CNT, galapectite nanofiber pipe is specific to self structure, be not that the later stage is by crosslinking gained, therefore stability is higher, and intensity is higher.
Owing to common aerogel material is to have the most hydrophilic, can not play a role very well when accordingly acting as oil absorption material, therefore the present invention has carried out hydrophobically modified to aerogel composite, it is possible to increase efficiency of deoiling.
After composite aerogel filler oil suction reaches saturation, owing to titanium dioxide has efficient photocatalytic, only composite aerogel filler need to be carried out ultraviolet light irradiation, it becomes possible to oil is degraded.
Further, in step 2) when carrying out bubbling, the bottom of foam separating tower is carried out air-blowing, from the collected overhead foam of foam separating tower；Wherein, corresponding to the water of every cubic metre, air-blowing speed is 20-40L/min.Carrying out foam separation with this understanding, bubble is effective, and separating degree is higher.
Further, in step 2) when carrying out bubbling, oily water water temperature is 25-35 DEG C, in foam separating tower, the loading height of oily water and the internal diameter of foam separating tower are than for 10-20:1.Carrying out foam separation with this understanding, bubble is effective, and separating degree is higher.
Further, in step 3), oily water flow velocity in the filler that the every square metre cross-section of oil-water separation tower is long-pending is 800-1200L/min.
Further, during preparing composite aerogel, when solution A being added drop-wise in solution B, in solution A, add the sodium bicarbonate of 0.02-0.03 times that quality is solution A simultaneously.The effect of sodium bicarbonate is as toluene, it is as porogen, but both pore principles are different, cooperate the different types of hole that can make, therefore containing the hole of three kinds of different origins in this composite aerogel: the hole that hole that aeroge is cross-linked to form, CNT, the tubulus of galapectite nanofiber pipe self, porogen are made, these three pore-size differs, therefore, it is possible to form difference in size alienation, for different greasy dirts, respective adsorption efficiency is the most different, therefore, it is possible to improve the overall oil absorbing effect of composite aerogel.
Further, described CNT, brucite fiber, galapectite nanofiber pipe are respectively through activation processing: CNT or brucite fiber or galapectite nanofiber pipe be impregnated in the 10wt% hydrochloric acid solution of 150-250 times of quality, and carry out water-bath vibration 1-2h at a temperature of 50-60 DEG C；After CNT or brucite fiber or galapectite nanofiber pipe are taken out and cleaned, at a temperature of 400-500 DEG C, calcine 2-5h.CNT after overactivation, brucite fiber, galapectite nanofiber pipe not only have higher intensity, and CNT and galapectite nanofiber pipe have more preferable adsorption activity.
Further, described CNT, the particle diameter of galapectite nanofiber pipe are 400-800nm.
Further, solution B is to the rate of addition 0.5-1.5mL/s of solution A.Need the strict rate of addition controlling solution B, form colloidal sol under this speed and can form the network-like structure of high-crosslinking-degree, on the premise of ensureing porosity, improve intensity.
Further, during hydrophobically modified, described organo-silicon compound are with the mixed solution of normal hexane, and organo-silicon compound are 1-2:5 with the volume ratio of normal hexane, and organo-silicon compound are 100:10-20 with the mixed solution of normal hexane and the mass ratio of wet gel；Modification temperature is 50-60 DEG C, modification time 36-50h.
Further, described organo-silicon compound are selected from hexamethyl disiloxane, hexamethyldisiloxane, HMDS, MTMS, trim,ethylchlorosilane.
It is compared with the prior art, the invention has the beneficial effects as follows: the inventive method efficiency of deoiling is high, it is not necessary to reclaims cleanser, and water body will not be caused secondary pollution.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
A kind of oily water purifying treatment method, comprises the following steps:
1) oily water is stood, and remove particulate contamination by filter screen.
2) oily water after step 1) processes is loaded in foam separating tower, the bottom of foam separating tower is carried out air-blowing, from the top separation foam of foam separating tower, take off a layer oily water.Wherein, corresponding to the water of every cubic metre, air-blowing speed is 30L/min.Oily water water temperature is 30 DEG C, and in foam separating tower, the loading height of oily water and the internal diameter of foam separating tower are than for 15:1.
3) by through step 2) process after oily water be passed through oil-water separation tower in carry out oil-water separation.Described oil-water separation tower uses composite aerogel as filler.Wherein, oily water flow velocity in the filler that the every square metre cross-section of oil-water separation tower is long-pending is 1000L/min.
The preparation process of described composite aerogel includes:
Butyl titanate, CNT, brucite fiber, galapectite nanofiber pipe, dehydrated alcohol, toluene 1:0.15:0.15:0.15:20:0.02 in mass ratio are mixed, obtained solution A；The glacial acetic acid of dehydrated alcohol, 1mol/L is mixed with water 15:5:1 in mass ratio, obtained solution B；Solution A is carried out supersonic oscillations process at 55 DEG C, solution B is added drop-wise in the solution A of 2 times of quality with the speed of 1mL/s；In solution A, add the sodium bicarbonate of 0.025 times that quality is solution A simultaneously, after stirring 1.5h, prepare sol solutions.Described CNT, the particle diameter of galapectite nanofiber pipe are 400-800nm
By the most aging for sol solutions 36h, in sol solutions, then add dehydrated alcohol carry out solvent displacement 36h, in sol solutions, add normal hexane the most again carry out solvent displacement 36h, be separated off normal hexane, obtain wet gel.With the mixed solution of organo-silicon compound Yu normal hexane, wet gel is carried out hydrophobically modified, in the mixed solution of described organo-silicon compound and normal hexane, organo-silicon compound are 1.5:5 with the volume ratio of normal hexane, and organo-silicon compound are 100:15 with the mixed solution of normal hexane and the mass ratio of wet gel；Modification temperature is 55 DEG C, modification time 43h.Described organo-silicon compound are hexamethyl disiloxane.
Eventually pass dried prepared composite aerogel.
Embodiment 2
A kind of oily water purifying treatment method, comprises the following steps:
1) oily water is stood, and remove particulate contamination by filter screen.
2) oily water after step 1) processes is loaded in foam separating tower, the bottom of foam separating tower is carried out air-blowing, from the top separation foam of foam separating tower, take off a layer oily water.Wherein, corresponding to the water of every cubic metre, air-blowing speed is 20L/min.Oily water water temperature is 25 DEG C, and in foam separating tower, the loading height of oily water and the internal diameter of foam separating tower are than for 10:1.
3) by through step 2) process after oily water be passed through oil-water separation tower in carry out oil-water separation.Described oil-water separation tower uses composite aerogel as filler.Wherein, oily water flow velocity in the filler that the every square metre cross-section of oil-water separation tower is long-pending is 800L/min.
The preparation process of described composite aerogel includes:
CNT, brucite fiber, galapectite nanofiber pipe be impregnated in respectively in the 10wt% hydrochloric acid solution of 200 times of quality, and at a temperature of 55 DEG C, carry out water-bath vibration 1.5h；After CNT, brucite fiber, galapectite nanofiber pipe are taken out respectively and cleaned, at a temperature of 450 DEG C, calcine 3.5h.Described CNT, the particle diameter of galapectite nanofiber pipe are 400-800nm
Butyl titanate, CNT, brucite fiber, galapectite nanofiber pipe, dehydrated alcohol, toluene 1:0.1:0.1:0.1:10:0.01 in mass ratio are mixed, obtained solution A；The glacial acetic acid of dehydrated alcohol, 0.5mol/L is mixed with water 10:4:1 in mass ratio, obtained solution B；Solution A is carried out supersonic oscillations process at 50 DEG C, solution B is added drop-wise in the solution A of 2 times of quality with the speed of 0.5mL/s；In solution A, add the sodium bicarbonate of 0.02 times that quality is solution A simultaneously, after stirring 1h, prepare sol solutions.
By the most aging for sol solutions 24h, in sol solutions, then add dehydrated alcohol carry out solvent displacement 24h, in sol solutions, add normal hexane the most again carry out solvent displacement 24h, be separated off normal hexane, obtain wet gel.With the mixed solution of organo-silicon compound Yu normal hexane, wet gel is carried out hydrophobically modified, in the mixed solution of described organo-silicon compound and normal hexane, organo-silicon compound are 1:5 with the volume ratio of normal hexane, and organo-silicon compound are 100:10 with the mixed solution of normal hexane and the mass ratio of wet gel；Modification temperature is 50 DEG C, modification time 50h.Described organo-silicon compound are hexamethyldisiloxane.
Eventually pass dried prepared composite aerogel.
Embodiment 3
A kind of oily water purifying treatment method, comprises the following steps:
1) oily water is stood, and remove particulate contamination by filter screen.
2) oily water after step 1) processes is loaded in foam separating tower, the bottom of foam separating tower is carried out air-blowing, from the top separation foam of foam separating tower, take off a layer oily water.Wherein, corresponding to the water of every cubic metre, air-blowing speed is 40L/min.Oily water water temperature is 35 DEG C, and in foam separating tower, the loading height of oily water and the internal diameter of foam separating tower are than for 20:1.
3) by through step 2) process after oily water be passed through oil-water separation tower in carry out oil-water separation.Described oil-water separation tower uses composite aerogel as filler.Wherein, oily water flow velocity in the filler that the every square metre cross-section of oil-water separation tower is long-pending is 1200L/min.
The preparation process of described composite aerogel includes:
CNT, brucite fiber, galapectite nanofiber pipe be impregnated in respectively in the 10wt% hydrochloric acid solution of 250 times of quality, and at a temperature of 60 DEG C, carry out water-bath vibration 1h；After CNT, brucite fiber, galapectite nanofiber pipe are taken out respectively and cleaned, at a temperature of 500 DEG C, calcine 2h.Described CNT, the particle diameter of galapectite nanofiber pipe are 400-800nm
Butyl titanate, CNT, brucite fiber, galapectite nanofiber pipe, dehydrated alcohol, toluene 1:0.2:0.2:0.2:30:0.03 in mass ratio are mixed, obtained solution A；The glacial acetic acid of dehydrated alcohol, 1.5mol/L is mixed with water 20:6:1 in mass ratio, obtained solution B；Solution A is carried out supersonic oscillations process at 60 DEG C, solution B is added drop-wise in the solution A of 2 times of quality with the speed of 1.5mL/s；In solution A, add the sodium bicarbonate of 0.03 times that quality is solution A simultaneously, after stirring 2h, prepare sol solutions.
By the most aging for sol solutions 48h, in sol solutions, then add dehydrated alcohol carry out solvent displacement 48h, in sol solutions, add normal hexane the most again carry out solvent displacement 48h, be separated off normal hexane, obtain wet gel.With the mixed solution of organo-silicon compound Yu normal hexane, wet gel is carried out hydrophobically modified, in the mixed solution of described organo-silicon compound and normal hexane, organo-silicon compound are 2:5 with the volume ratio of normal hexane, and organo-silicon compound are 100:20 with the mixed solution of normal hexane and the mass ratio of wet gel；Modification temperature is 60 DEG C, modification time 36h.Described organo-silicon compound are MTMS.
Eventually pass dried prepared composite aerogel.
The composite aerogel filler that embodiment 1-3 prepares, its porosity can reach 92-96%, and specific surface area reaches 500-600 m2/ g, density reaches 3.5-4.5kg/m3.After described in embodiment 1-3, oily water is purified by method, after purification, water quality oil content can control within 2.8mg/L.
Raw materials used, equipment in the present invention, unless otherwise noted, is the conventional raw material of this area, equipment；Method therefor in the present invention, unless otherwise noted, is the conventional method of this area.
The above, be only presently preferred embodiments of the present invention, not impose any restrictions the present invention, every any simple modification, change and equivalent transformation made above example according to the technology of the present invention essence, all still falls within the protection domain of technical solution of the present invention.
Claims (10)
1. an oily water purifying treatment method, it is characterised in that comprise the following steps:
1) oily water is stood, and remove particulate contamination by filter screen；
2) oily water after step 1) processes is loaded in foam separating tower carries out bubbling process, and separate bubble foam layer, take off a layer oily water；
3) by through step 2) process after oily water be passed through oil-water separation tower in carry out oil-water separation；Described oil-water separation tower uses composite aerogel as filler；
The preparation process of described composite aerogel includes: butyl titanate, CNT, brucite fiber, galapectite nanofiber pipe, dehydrated alcohol, toluene 1:0.1-0.2:0.1-0.2:0.1-0.2:10-30:0.01-0.03 are in mass ratio mixed, obtained solution A；The glacial acetic acid of dehydrated alcohol, 0.5-1.5mol/L is mixed with water 10-20:4-6:1 in mass ratio, obtained solution B；Solution A is carried out supersonic oscillations process at 50-60 DEG C, solution B is added drop-wise in the solution A of 2 times of quality；Sol solutions is prepared after stirring 1-2h；By the most aging for sol solutions 24-48h, then in sol solutions, add dehydrated alcohol carry out solvent displacement 24-48h, in sol solutions, add normal hexane the most again carry out solvent displacement 24-48h, it is separated off normal hexane, obtain wet gel, with the mixed solution of organo-silicon compound Yu normal hexane, wet gel is carried out hydrophobically modified, eventually pass dried prepared composite aerogel.
2. oily water purifying treatment method as claimed in claim 1 a kind of, it is characterised in that in step 2) when carrying out bubbling, the bottom of foam separating tower is carried out air-blowing, from the collected overhead foam of foam separating tower；Wherein, corresponding to the water of every cubic metre, air-blowing speed is 20-40L/min.
3. oily water purifying treatment method as claimed in claim 2 a kind of, it is characterised in that in step 2) when carrying out bubbling, oily water water temperature is 25-35 DEG C, in foam separating tower, the loading height of oily water and the internal diameter of foam separating tower ratio is for 10-20:1.
4. a kind of oily water purifying treatment method as claimed in claim 1, it is characterised in that in step 3), oily water flow velocity in the filler that the every square metre cross-section of oil-water separation tower is long-pending is 800-1200L/min.
5. a kind of oily water purifying treatment method as claimed in claim 1, it is characterised in that during preparing composite aerogel, when solution A being added drop-wise in solution B, adds the sodium bicarbonate of 0.02-0.03 times that quality is solution A in solution A simultaneously.
6. a kind of oily water purifying treatment method as claimed in claim 1, it is characterized in that, described CNT, brucite fiber, galapectite nanofiber pipe are respectively through activation processing: CNT or brucite fiber or galapectite nanofiber pipe be impregnated in the 10wt% hydrochloric acid solution of 150-250 times of quality, and carry out water-bath vibration 1-2h at a temperature of 50-60 DEG C；After CNT or brucite fiber or galapectite nanofiber pipe are taken out and cleaned, at a temperature of 400-500 DEG C, calcine 2-5h.
7. a kind of oily water purifying treatment method as described in claim 1 or 6, it is characterised in that described CNT, the particle diameter of galapectite nanofiber pipe are 400-800nm.
8. a kind of oily water purifying treatment method as claimed in claim 1, it is characterised in that solution B is to the rate of addition 0.5-1.5mL/s of solution A.
9. a kind of oily water purifying treatment method as claimed in claim 1, it is characterized in that, during hydrophobically modified, in the mixed solution of described organo-silicon compound and normal hexane, organo-silicon compound are 1-2:5 with the volume ratio of normal hexane, and organo-silicon compound are 100:10-20 with the mixed solution of normal hexane and the mass ratio of wet gel；Modification temperature is 50-60 DEG C, modification time 36-50h.
10. a kind of oily water purifying treatment method as described in claim 1 or 9, it is characterised in that described organo-silicon compound are selected from hexamethyl disiloxane, hexamethyldisiloxane, HMDS, MTMS, trim,ethylchlorosilane.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083115A (en) * | 2018-08-17 | 2018-12-25 | 浙江工业大学 | A kind of Oil sucking device for the oil in oil recovery water mixed solution |
| CN109692633A (en) * | 2017-10-23 | 2019-04-30 | 天津城建大学 | Fire-retardant carbon nanotube-galapectite aerogel composite and preparation method thereof |
| CN109694540A (en) * | 2017-10-23 | 2019-04-30 | 天津城建大学 | Multiple dimensioned carbon nanotube-galapectite aerogel composite and preparation method thereof |
| CN109988274A (en) * | 2018-01-03 | 2019-07-09 | 天津城建大学 | With mesoporous and micropore mesh carbon nanotube-galapectite aerogel composite and preparation method thereof |
| CN110229642A (en) * | 2019-05-06 | 2019-09-13 | 阜阳大可新材料股份有限公司 | A kind of preparation method of fibre board use water proof fire retardant adhesive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006231153A (en) * | 2005-02-23 | 2006-09-07 | Sanfurointo:Kk | Cleaning method in established steel oil storage buried tank |
| CN101654349A (en) * | 2009-09-11 | 2010-02-24 | 长春理工大学 | Method for preparing silica aerogel by doped brucite fiber and titanium dioxide powder |
| CN101972559A (en) * | 2010-10-21 | 2011-02-16 | 天津大学 | Oil-water separating device and method |
-
2016
- 2016-04-21 CN CN201610251125.0A patent/CN106242134A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006231153A (en) * | 2005-02-23 | 2006-09-07 | Sanfurointo:Kk | Cleaning method in established steel oil storage buried tank |
| CN101654349A (en) * | 2009-09-11 | 2010-02-24 | 长春理工大学 | Method for preparing silica aerogel by doped brucite fiber and titanium dioxide powder |
| CN101972559A (en) * | 2010-10-21 | 2011-02-16 | 天津大学 | Oil-water separating device and method |
Non-Patent Citations (1)
| Title |
|---|
| 李兴旺等: "常压干燥制备TiO2气凝胶及光催化降解含油污水性能研究", 《无机材料学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692633A (en) * | 2017-10-23 | 2019-04-30 | 天津城建大学 | Fire-retardant carbon nanotube-galapectite aerogel composite and preparation method thereof |
| CN109694540A (en) * | 2017-10-23 | 2019-04-30 | 天津城建大学 | Multiple dimensioned carbon nanotube-galapectite aerogel composite and preparation method thereof |
| CN109988274A (en) * | 2018-01-03 | 2019-07-09 | 天津城建大学 | With mesoporous and micropore mesh carbon nanotube-galapectite aerogel composite and preparation method thereof |
| CN109083115A (en) * | 2018-08-17 | 2018-12-25 | 浙江工业大学 | A kind of Oil sucking device for the oil in oil recovery water mixed solution |
| CN110229642A (en) * | 2019-05-06 | 2019-09-13 | 阜阳大可新材料股份有限公司 | A kind of preparation method of fibre board use water proof fire retardant adhesive |
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