CN106824078A - A kind of preparation method and application of oily sludge sorbing material - Google Patents
A kind of preparation method and application of oily sludge sorbing material Download PDFInfo
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- CN106824078A CN106824078A CN201710115444.3A CN201710115444A CN106824078A CN 106824078 A CN106824078 A CN 106824078A CN 201710115444 A CN201710115444 A CN 201710115444A CN 106824078 A CN106824078 A CN 106824078A
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- oily sludge
- sorbing material
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- initial product
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- 239000010802 sludge Substances 0.000 title claims abstract description 79
- 239000000463 material Substances 0.000 title claims abstract description 69
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000843 powder Substances 0.000 claims abstract description 21
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 14
- 150000002500 ions Chemical class 0.000 claims abstract description 14
- 239000002351 wastewater Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000004570 mortar (masonry) Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000000197 pyrolysis Methods 0.000 abstract description 13
- 239000007800 oxidant agent Substances 0.000 abstract description 12
- 238000001179 sorption measurement Methods 0.000 abstract description 9
- 230000001590 oxidative effect Effects 0.000 abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 239000011148 porous material Substances 0.000 abstract description 5
- 125000000524 functional group Chemical group 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 10
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000001354 calcination Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 description 6
- 239000003463 adsorbent Substances 0.000 description 5
- 239000011133 lead Substances 0.000 description 5
- 229910021645 metal ion Inorganic materials 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910014033 C-OH Inorganic materials 0.000 description 4
- 229910014570 C—OH Inorganic materials 0.000 description 4
- 239000012675 alcoholic extract Substances 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 230000002902 bimodal effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 125000000962 organic group Chemical group 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001994 activation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 125000004417 unsaturated alkyl group Chemical group 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Abstract
The invention discloses a kind of preparation method of oily sludge sorbing material, it is placed in tube furnace after oily sludge is mixed with hydrogen peroxide by certain mass volume ratio, in N at 300~600 DEG C21h is calcined in atmosphere, initial product is obtained；Evengranular powder is ground to form after initial product is cooled down.Preparation method of the present invention in initial oil sludge by adding appropriate oxidant H2O2, then the oily sludge sorbing material obtained through pyrolysis processing has good adsorption effect to heavy metal ions in wastewater, the oily sludge sorbing material for obtaining not only has larger specific surface area, and pore structure is flourishing, and substantial amounts of oxygen-containing functional group is contained on surface.
Description
Technical field
The present invention relates to a kind of preparation method of oily sludge sorbing material, further relate to above-mentioned oily sludge sorbing material and exist
Application in terms of removal heavy metal ions in wastewater.
Background technology
A large amount of oily sludges are inevitably produced in process of oil production, if processing it not thorough, was both caused
The waste of petroleum-based energy, produces serious problem of environmental pollution again.The treatment of oily sludge is domestic and international petroleum production art ring
The important content of border protection, is also relatively to be difficult to resolve certainly and one of urgent problem, even more restricts oilfield environment continuous quality and carries
The a great problem of high and sustainable economic development.At present, pyrolysismethod treatment oily sludge have disposal thoroughly, decrement volume reduction effect
Well, the advantages of secondary pollution is few, resource recovery is high, has been subjected to the concern of many researchers.The Zhang Guan of Chinese Marine University
Under the pyrolytical condition that beautiful jade etc. is used when being pyrolyzed to oily sludge using pyrolysis processing technology is protected for nitrogen, pyrolysis temperature
550 DEG C, oily sludge is prepared into pyrolysis residue sorbing material by pyrolysis time 4h, and the material is to removing SO2With the effect of oil removing
Preferably.The superfine people of soup of Changjiang University is using Jilin Chemical oily sludge with ZnCl2Solution as activator, in 550 DEG C of pyrolysis temperatures
Lower stop 2h prepares irregular porous adsorbing material.The material is better than wooden work to the COD in sewage and oils clearance
Property charcoal.
The addition of solvent can cause oily sludge in existing oily sludge pyrolytic technique activation process complexity, activation process
Secondary pollution, and too high pyrolysis temperature and long pyrolysis time will also result in corresponding cost expenses and improve.
The content of the invention
Goal of the invention：The technical problems to be solved by the invention are to provide a kind of preparation side of oily sludge sorbing material
Method.
The technical problem also to be solved of the invention is to provide above-mentioned oily sludge sorbing material in removal heavy metal in waste water
The application of ions.
The content of the invention：In order to solve the above technical problems, the technology used in the present invention means are：
A kind of preparation method of oily sludge sorbing material, certain mass volume ratio is pressed by oily sludge and hydrogen peroxide
It is placed in tube furnace after mixing, in N at 300~600 DEG C21h is calcined in atmosphere, initial product is obtained；After initial product is cooled down
Grind into powder.
Wherein, for every 1g oily sludges, the addition volume of hydrogen peroxide is 0.05mL, 0.1mL or 0.15mL.
Wherein, it is placed in tube furnace after oily sludge is mixed with hydrogen peroxide by certain mass volume ratio, in 300 DEG C
Lower N21h is calcined in atmosphere, initial product is obtained；Evengranular powder is ground to form after initial product is cooled down.
Wherein, it is placed in tube furnace after oily sludge is mixed with hydrogen peroxide by certain mass volume ratio, in 400 DEG C
Lower N21h is calcined in atmosphere, initial product is obtained；Evengranular powder is ground to form after initial product is cooled down.
Wherein, it is placed in tube furnace after oily sludge is mixed with hydrogen peroxide by certain mass volume ratio, in 500 DEG C
Lower N21h is calcined in atmosphere, initial product is obtained；Evengranular powder is ground to form after initial product is cooled down.
Wherein, it is placed in tube furnace after oily sludge is mixed with hydrogen peroxide by certain mass volume ratio, in 600 DEG C
Lower N21h is calcined in atmosphere, initial product is obtained；Evengranular powder is ground to form after initial product is cooled down.
Wherein, it is placed in after initial product is cooled down in agate mortar and grinds to form evengranular powder.
Wherein, the pore diameter range of the powder is 10nm~16nm.
Application of the above-mentioned oily sludge sorbing material in terms of heavy metal ions in wastewater is removed.
Compared to prior art, technical solution of the present invention have the advantage that for：
Preparation method of the present invention is under relatively low pyrolysis temperature and shorter pyrolysis time by contained by oily sludge
Organic group carry out oxidation modification, not only saved preparation cost, and avoid caused by the addition of other chemical substances
Secondary pollution, the oily sludge sorbing material prepared has good removal effect to the heavy metal ion in waste water.
Brief description of the drawings
Fig. 1 is the infrared spectrogram of the oily sludge sorbing material obtained by embodiment 1；
Fig. 2 is the infrared spectrogram of the oily sludge sorbing material obtained by embodiment 2；
Fig. 3 is the infrared spectrogram of the oily sludge sorbing material obtained by embodiment 3；
Fig. 4 is the infrared spectrogram of the oily sludge sorbing material obtained by embodiment 4；
Fig. 5 is the infrared spectrogram of the oily sludge sorbing material obtained by embodiment 5.
Specific embodiment
According to following embodiments, the present invention may be better understood.However, the content described by embodiment is merely to illustrate
The present invention, without should also without limitation on the present invention described in detail in claims.
Embodiment 1
The preparation method of oily sludge sorbing material of the present invention, by oily sludge and oxidants hydrogen peroxide H2O2(g：mL)
It is placed in tube furnace after mixing by 1: 0,1: 0.05,1: 0.1 and 1: 0.15 mass volume ratio respectively, in N at 300 DEG C2Atmosphere
Middle calcining 1h, is taken out after cooling, and evengranular powder is ground to form with agate mortar.
The oily sludge sorbing material that will be prepared carries out the adsorption test of heavy metal ion, adds different in course of reaction
The oxidant H of amount2O2The BET specific surface area of the sorbing material that correspondence is obtained and aperture are respectively：4.90m2/g、14.92nm；
5.70m2/g、10.70nm；4.70m2/g、13.79nm；Table 1 is that the oily sludge sorbing material obtained in embodiment 1 is right respectively
Pb2+、Zn2+、Cu2+Clearance experimental result；Fig. 1 is the infrared spectrogram of oily sludge sorbing material obtained in embodiment 1,
Be can see from collection of illustrative plates, in N at 300 DEG C2The material that calcining 1h is obtained in atmosphere is in infrared 3000~2700cm of wave number-1Have bright
Aobvious is bimodal, and this is the C-H stretching vibration characteristic peaks of aldehyde radical；1400cm-1Left and right is-CH2-、-CH3Peak；1200~1000cm-1Between be C-OH alcoholic extract hydroxyl group characteristic peaks；900cm-1Left and right for unsaturated alkyl=C-H flexural vibrations；With in course of reaction
Oxidant H2O2The increase of addition, corresponding feature peak intensity has been strengthened.
The reaction temperature of table 1 is clearance of the sorbing material to metal ion obtained in different mixing ratios at 300 DEG C
Wherein, Pb in water sample2+、Zn2+Initial concentration be 0.3mg/L, Cu2+Initial concentration be 5mg/L, adsorbent
Dosage is 1g/L.
Embodiment 2
The preparation method of oily sludge sorbing material of the present invention, by oily sludge and oxidants hydrogen peroxide H2O2(g：mL)
It is placed in tube furnace after mixing by 1: 0,1: 0.05,1: 0.1 and 1: 0.15 mass volume ratio respectively, in N at 400 DEG C2Atmosphere
Middle calcining 1h, is taken out after cooling, and evengranular powder is ground to form with agate mortar.
The oily sludge sorbing material that will be prepared carries out the adsorption test of heavy metal ion, adds different in course of reaction
The oxidant H of amount2O2The BET specific surface area of the sorbing material that correspondence is obtained and aperture are respectively：9.40m2/g、15.70nm；
10.4m2/g、14.80nm；10.50m2/g、12.49nm；Table 2 is that the oily sludge sorbing material obtained in embodiment 2 is right respectively
Pb2+、Zn2+、Cu2+Clearance experimental result；Fig. 2 is the infrared spectrogram of oily sludge sorbing material obtained in embodiment 2,
Be can see from collection of illustrative plates, in N at 400 DEG C2The material that calcining 1h is obtained in atmosphere is in infrared 3000~2700cm of wave number-1Have double
Peak, this is the C-H stretching vibration characteristic peaks of aldehyde radical；1200~1000cm-1Between be C-OH alcoholic extract hydroxyl group characteristic peaks, with reacting
Oxidant H in journey2O2The increase of addition, corresponding feature peak intensity has been strengthened.
The reaction temperature of table 2 is clearance of the sorbing material to metal ion obtained in different mixing ratios at 400 DEG C
Wherein, Pb in water sample2+、Zn2+Initial concentration be 0.3mg/L, Cu2+Initial concentration be 5mg/L；Adsorbent
Dosage is 1g/L.
Embodiment 3
The preparation method of oily sludge sorbing material of the present invention, by oily sludge and oxidants hydrogen peroxide H2O2(g：mL)
It is placed in tube furnace after mixing by 1: 0,1: 0.05,1: 0.1 and 1: 0.15 mass volume ratio respectively, in N at 500 DEG C2Atmosphere
Middle calcining 1h, is taken out after cooling, and evengranular powder is ground to form with agate mortar.
The oily sludge sorbing material that will be prepared carries out the adsorption test of heavy metal ion, adds different in course of reaction
The oxidant H of amount2O2The BET specific surface area of the sorbing material that correspondence is obtained and aperture are respectively：19.50m2/g、11.12nm；
17.0m2/g、15.24nm；19.80m2/g、12.95nm；Table 3 is that the oily sludge sorbing material obtained in embodiment 3 is right respectively
Pb2+、Zn2+、Cu2+Clearance experimental result；Fig. 3 is the infrared spectrogram of oily sludge sorbing material obtained in embodiment 3,
Be can see from collection of illustrative plates, in N at 500 DEG C2The material that calcining 1h is obtained in atmosphere is in infrared 3000~2700cm of wave number-1Between
It is bimodal not substantially, this is probably that sample oxy radical at 500 DEG C is oxidized, and it is existing that charing has occurred in the sample at a temperature of this
As and form certain pore structure, chemisorbed does not account for main body.
The reaction temperature of table 3 is clearance of the sorbing material to metal ion obtained in different mixing ratios at 500 DEG C
Wherein, Pb in water sample2+、Zn2+Initial concentration be 0.3mg/L, Cu2+Initial concentration be 5mg/L, adsorbent
Dosage is 1g/L.
Embodiment 4
The preparation method of oily sludge sorbing material of the present invention, by oily sludge and oxidants hydrogen peroxide H2O2(g：mL)
It is placed in tube furnace after mixing by 1: 0,1: 0.05,1: 0.1 and 1: 0.15 mass volume ratio respectively, in N at 600 DEG C2Atmosphere
Middle calcining 1h, is taken out after cooling, and evengranular powder is ground to form with agate mortar.
The oily sludge sorbing material that will be prepared carries out the adsorption test of heavy metal ion, and table 4 is obtained for the embodiment 4
Oily sludge sorbing material respectively to Pb2+、Zn2+、Cu2+Clearance experimental result；Fig. 4 is that embodiment 4 is obtained contains greasy dirt
The infrared spectrogram of mud sorbing material, can see, in N at 500 DEG C from collection of illustrative plates2The material that calcining 1h is obtained in atmosphere is red
Outer 3000~2700cm of wave number-1Between bimodal disappearance, 1200~1000cm-1Between for C-OH alcoholic extract hydroxyl groups characteristic peak also
Weaken, this is probably that sample oxy radical at 600 DEG C is oxidized, and the sample at a temperature of this has occurred and that charing phenomenon and formed
Certain pore structure, mainly based on physical absorption.
The reaction temperature of table 4 is clearance of the sorbing material to metal ion obtained in different mixing ratios at 600 DEG C
Wherein, Pb in water sample2+、Zn2+Initial concentration be 0.3mg/L, Cu2+Initial concentration be 5mg/L, adsorbent
Dosage is 1g/L.
Embodiment 5
A kind of preparation method of oily sludge sorbing material, the oily sludge of equivalent is respectively placed in tube furnace, in 300
DEG C, 400 DEG C, 500 DEG C, N at 600 DEG C21h is pyrolyzed under atmosphere, is taken out after cooling, evengranular powder is ground to form with agate mortar
End.
The oily sludge of equivalent is placed in tube furnace simultaneously, in O at 700 DEG C21h is calcined under atmosphere, is taken out after cooling,
Evengranular powder is ground to form with agate mortar.BET specific surface area of material and aperture are respectively at a temperature of this：3.13m2/
g、21.08nm。
The material that will be prepared at a temperature of differential responses carries out the adsorption test of heavy metal ion, and table 5 is different pyrolysis temperature
The lower obtained oily sludge sorbing material of degree is respectively to Pb2+、Zn2+、Cu2+Clearance experimental result.Fig. 5 is obtained for embodiment 5
Oily sludge sorbing material infrared spectrogram, from collection of illustrative plates it can be seen that, O at 700 DEG C2Complete oil-containing is calcined in atmosphere
Sludge is substantially free of organic thing, and the adsorption effect to metallic copper, zinc and lead ion is substantially reduced, with 700 DEG C at O2Phase in atmosphere
Than the sorbing material prepared under the conditions of low temperature pyrogenation not only remains the original organic group feature in part in oily sludge
Peak, and the characteristic peak of some organic groups, such as 2800cm are enhanced to a certain extent-1C-H's is flexible in the aldehyde radical of left and right
Vibration peak；2500cm-1Left and right C=C double bond stretching vibration peaks；1800cm-1The C=O stretching vibration peaks of left and right carbonyl；1200-
1000cm-1Between C-OH alcoholic extract hydroxyl group characteristic peaks etc..
Table 5 is clearance of the material to metal ion obtained in different pyrolysis temperatures
Wherein, Pb in water sample2+、Zn2+Initial concentration be 0.3mg/L, Cu2+Initial concentration be 5mg/L, adsorbent
Dosage is 1g/L.
Preparation method of the present invention in initial oil sludge by adding appropriate oxidant H2O2, then obtained through pyrolysis processing
To oily sludge sorbing material there is good adsorption effect to heavy metal ions in wastewater, the oily sludge adsorption material for obtaining
Material not only has larger specific surface area, and pore structure is flourishing, and substantial amounts of oxygen-containing functional group is contained on surface.
Wherein, oxidant H2O2Acting as in reaction system：The energy of oxidation of oily sludge in appropriate enhancing pyrolytic process
Power, obtains more small organic molecules and corresponding oxygen-containing functional group；Increase the oxygen content of reaction system simultaneously, make material list
Face forms more oxygen-containing functional groups.
Preparation method of the present invention is aoxidized by the appropriateness to oily sludge, it is produced or retain certain oxygen-containing function
Group, the removal to heavy metal ions in wastewater is realized by chemisorbed and physical absorption simultaneously, both realizes oily sludge
Recycling, and for the removal of heavy metal ions in wastewater provides a kind of feasible new method.
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not to of the invention
The restriction of implementation method.For those of ordinary skill in the field, it can also be made on the basis of the above description
The change or variation of its multi-form.There is no need and unable to be exhaustive to all of implementation method.And these belong to this hair
Obvious change that bright spirit is extended out or among changing still in protection scope of the present invention.
Claims (9)
1. a kind of preparation method of oily sludge sorbing material, it is characterised in that by oily sludge and hydrogen peroxide by certain
It is placed in tube furnace after mass volume ratio mixing, in N at 300~600 DEG C21h is calcined in atmosphere, initial product is obtained；Will be initial
Grind into powder after product cooling.
2. the preparation method of oily sludge sorbing material according to claim 1, it is characterised in that：Contain greasy dirt for every 1g
Mud, the addition volume of hydrogen peroxide is 0.05mL, 0.1mL or 0.15mL.
3. the preparation method of oily sludge sorbing material according to claim 2, it is characterised in that：By oily sludge and mistake
Hydrogen oxide is placed in tube furnace after mixing by certain mass volume ratio, in N at 300 DEG C21h is calcined in atmosphere, is initially produced
Thing；Evengranular powder is ground to form after initial product is cooled down.
4. the preparation method of oily sludge sorbing material according to claim 2, it is characterised in that：By oily sludge and mistake
Hydrogen oxide is placed in tube furnace after mixing by certain mass volume ratio, in N at 400 DEG C21h is calcined in atmosphere, is initially produced
Thing；Evengranular powder is ground to form after initial product is cooled down.
5. the preparation method of oily sludge sorbing material according to claim 2, it is characterised in that：By oily sludge and mistake
Hydrogen oxide is placed in tube furnace after mixing by certain mass volume ratio, in N at 500 DEG C21h is calcined in atmosphere, is initially produced
Thing；Evengranular powder is ground to form after initial product is cooled down.
6. the preparation method of oily sludge sorbing material according to claim 2, it is characterised in that：By oily sludge and mistake
Hydrogen oxide is placed in tube furnace after mixing by certain mass volume ratio, in N at 600 DEG C21h is calcined in atmosphere, is initially produced
Thing；Evengranular powder is ground to form after initial product is cooled down.
7. the preparation method of oily sludge sorbing material according to claim 1, it is characterised in that：Initial product is cooled down
After be placed in agate mortar and grind to form evengranular powder.
8. the preparation method of oily sludge sorbing material according to claim 1, it is characterised in that：The aperture of the powder
Scope is 10nm~16nm.
9. oily sludge sorbing material obtained in the preparation method of oily sludge sorbing material described in claim 1 is in removal waste water
The application of middle heavy metal ions.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201022A (en) * | 2018-11-16 | 2019-01-15 | 山东省科学院生态研究所 | Composite magnetic adsorption material preparation based on oily sludge and its minimizing technology to Heavy Metals in Waters |
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| CN102267695A (en) * | 2011-07-25 | 2011-12-07 | 中国石油天然气集团公司 | Method for preparing super activated charcoal from oily sludge |
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