CN106629968A - Preparation method of adsorption material used for removing heavy metal copper in waste water - Google Patents
Preparation method of adsorption material used for removing heavy metal copper in waste water Download PDFInfo
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- CN106629968A CN106629968A CN201610956009.9A CN201610956009A CN106629968A CN 106629968 A CN106629968 A CN 106629968A CN 201610956009 A CN201610956009 A CN 201610956009A CN 106629968 A CN106629968 A CN 106629968A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—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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- 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
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
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- 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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
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- 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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
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Abstract
The invention discloses a preparation method of an adsorption material used for removing heavy metal copper in waste water, and belongs to the technical field of waste water treatment. According to the preparation method, potassium nitrate and sodium nitrate are taken as base materials, an appropriate amount of peanut oil modified kaoline is added, precipitation is carried out at an alkaline environment, high temperature calcination is carried out so as to obtain a mesoporous material, the mesoporous material is taken as a carrier, kitchen sewage is taken as a microorganism resource, malic acid is taken as a microorganism organic nutrient solution, continuous anaerobic fermentation is carried out, hydrogen peroxide is used for sterilization, and immobilizing of organic matters with corresponding functions on the surface of the carrier is carried out so as to remove heavy metal copper in waste water. Compared with other adsorbing materials, the adsorption material possesses obvious specific adsorption performance, is large in adsorbing capacity, and high in removing efficiency; removing rate is not reduced obviously after nine times of recycling adsorption; preparation cost is low; and resource comprehensive utilization is realized.
Description
Technical field
The invention discloses a kind of preparation method for removing heavy metals polluted by copper material, is related to Wastewater Treatment Technology
Art field.
Background technology
Heavy metal wastewater thereby is a kind of resource, containing many heavy metals costly, the such as valuable heavy metal of copper, nickel, if
Reclaimed heavy metal in waste water as resource, can not only be solved heavy metal pollution problem, and had certain economic benefit.
Copper-containing wastewater is the waste water that a class is produced by the industry such as metallurgy, electronics, mainly includes printed circuit board (PCB) etching waste water, electroplating wastewater
Deng.Copper content is up to 0.1～35g/L in copper-containing wastewater, sewage drainage standard (GB8978-1996) is substantially exceeded, if directly
Discharge, can serious environment pollution.Therefore, it is necessary to be taken the necessary measures copper-containing wastewater is processed.
At present, heavy metal in waste water copper ion is processed, it is industrial typically to adopt chemical precipitation method, ion-exchange, electrolysis
Method, membrane separation process, absorption method, New Type of Mesoporous material absorption method etc..Chemical precipitation method equipment is simple and convenient to operate, treatment effect
Good, at present, the process application to high concentration, the copper-containing wastewater of big flow is more universal, but, expense big to the consumption of chemical reagent
It is high, easily cause secondary pollution.Ion-exchange has little floor space, convenient management, copper ion removal efficiency high, and processes
When regenerated liquid can be made as resource reclaim, secondary pollution will not be caused to environment, but one-time investment is big, and operating cost is high,
Resin vulnerable to pollution or oxidation deactivation, regeneration is frequent, and regeneration issues there is also certain difficulty.Electrolysis technical maturity, has
Clearance is high, non-secondary pollution, the heavy metal recoverable for being precipitated, stronger to waste water quality change adaptability, during reaction
Between it is short, but energy consumption is big when processing a large amount of waste water, and electrode metal consumption is big, processes wastewater flow rate few.Membrane separation process has purified water quality, and
Enriching and recovering heavy metal, plays double effects, but because technical difficulty is big, processing cost is high etc., hinders the industry of the method
Change.Absorption method is a kind of relatively effective method for processing heavy metal pollution, and the method has good treatment effect, but its economy fortune
Row high cost, it is difficult to large-scale application.Therefore find efficient, the sorbing material of low cost is that current absorption method process is heavy metal-polluted
One big technical barrier of dye.
The content of the invention
Present invention mainly solves technical problem：It is difficult to remove for heavy metal in waste water copper, and traditional heavy metal copper is inhaled
Attached dose during preparation and use, dosage is big when needing, and medicament used may cause secondary pollution, Er Qiepu to environment
Problem of the logical sorbing material to heavy metal adsorption difference in copper-containing wastewater, there is provided one kind is modified mesoporous using natural organic matter
Sorbing material pore structure, fermentable solidification mesoporous adsorption material specific surface area, load accordingly with heavy metal copper formationization
The sorbing material preparation method of the organic group of key is learned, the present invention adds appropriate peanut oil with potassium nitrate and sodium nitrate as base-material
Modified kaolin, is precipitated in alkaline environment, and by high-temperature calcination mesoporous material is obtained, then with mesoporous material to carry
Body, kitchen sanitary sewage is microbial source, and malic acid is microorganism organic nutrient solution for cultivating, and lasting anaerobic fermentation is mouldy, uses hydrogen peroxide
Sterilizing, organic matter of the solidification with corresponding function group reaches the purpose for removing heavy metal in waste water copper, the present invention on its surface
Compared with other sorbing materials, with obvious single-minded adsorptivity, and adsorbance is big, and clearance is high, circulation absorption more than 9 times its
Clearance is not decreased obviously, while preparation cost is low, realizes the comprehensive utilization of resource.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）The ripe peanuts of 1～3kg are chosen, impurity elimination is subsequently shelled, sort out shelled peanut, impurity elimination, by the shelled peanut of impurity elimination
It is put in disintegrating machine, every shelled peanut is broken into into the particle of 6～8 lobes, particle is squeezed into into thickness 0.5～1.0mm snowflake sheets
Stock, then stock is put into into steamer, cure stock, open steam 0.1～0.4mPa of pressure, moisture is less than 9%, temperature 95
～106 DEG C, then curing embryo is added to into parch in frying pan, make to cook thoroughly softening, reducing moisture increases temperature, parch temperature
115～130 DEG C, material embryo water tariff collection is 1～4%, while addition is cooked after partial crushing, then by the shelled peanut after parch
In being placed in oil press, extracted oil at 140～150 DEG C, obtained virgin oil, finally by virgin oil carry out fast cooling, stirring,
Washing process, after temperature reaches 18 DEG C, directly filters, and by filter cloth by separation of solid and liquid, reaches limpid, transparent, free from admixture, obtains final product
Peanut oil；
（2）In mass ratio 1:10 are soaked in kaolin 1～2 day in the refined peanut oil of above-mentioned gained, after kaolin saturation, mistake
Filter, obtains saturation peanut oil kaolin, by saturation peanut oil kaolin and deionized water in mass ratio 1:9 mixing, are placed in ultrasonic wave
10～30min is stirred in shaker, then moves into 25～45min of sonic oscillation in 50～70 DEG C of isothermal vibration beds, turbid liquid must be mixed；
（3）It is 5～7% silver nitrate solutiones to measure the sodium nitrate solution of 300～400mL mass fractions 5～7% and mass fraction respectively
It is sufficiently mixed, obtains mixed solution, mixed liquor and step is pressed after mixing（2）The turbid liquid volume ratio of mixing of preparation is 1:7, with 300～
400r/min is uniformly mixing to obtain mixed liquor；
（4）0.5～1.0mol/L sodium hydroxide solutions are constantly added dropwise in the mixed liquor of above-mentioned preparation, and with 400 ~ 600r/min
Stirring is until precipitate complete, filter cake is collected in filtration, and in an oven, temperature carries out 1～3h of drying for 100～110 DEG C, obtains
Dried object, in moving it into calcining furnace, under nitrogen protective condition at 800～900 DEG C, after 1～3h of calcining, crushes and crosses 150
～180 mesh sieves, obtain the particulate matter that sieves；
（5）It is 1 by mass ratio：7 particulate matter that sieves is immersed in the anaerobic jar of sealing with sanitary sewage and ferments 1～3 day,
30～40 DEG C of fermentation temperature, then filters, and collects fermentate, and in ventilated environment, relative humidity is under 80～90%, to send out naturally
It is mould, every 1～2h continuous drip washing fermentates of 150～250mL of malic acid during mouldy；
（6）Above-mentioned surface particles fungus growth is treated to 8～12mm, with the H that mass fraction is 5～15%2O2Solution sterilization, mistake
Filter, drying, granulation obtain final product removal heavy metals polluted by copper material.
The application process of the present invention：Take waste water of the 1～3L containing heavy metal copper, determine its heavy metal copper content for 150～
250mg/L, adds the obtained removal heavy metals polluted by copper material of 1～3g present invention under 400～600r/min stirrings, then
Vibration bed vibration 15～20min, static 25～30min are moved into, it is below 0.3mg/L to determine its heavy metal in waste water copper content,
Clearance reaches more than 99%, and 9 experiments of circulation absorption, its clearance is iteratively repeated absorption until inhaling still more than 99%
It is attached to reach saturation, it is respectively to dry after 10% salt acid elution with 1mol NaOH and mass fraction, in 150～160 DEG C of baking ovens
1～3h of middle baking, you can regeneration, to heavy metal in waste water copper removal rate up to more than 97% after regeneration.
The invention has the beneficial effects as follows：
（1）The present invention has obvious single-minded adsorptivity, and adsorbance is big, and clearance is high；
（2）Present invention absorption capable of circulation, clearance is not decreased obviously；
（3）Preparation cost of the present invention is low, realizes the comprehensive utilization of resource.
Specific embodiment
The ripe peanuts of 1～3kg are chosen, impurity elimination is subsequently shelled, sort out shelled peanut, impurity elimination, by the shelled peanut of impurity elimination
It is put in disintegrating machine, every shelled peanut is broken into into the particle of 6～8 lobes, particle is squeezed into into thickness 0.5～1.0mm snowflake sheets
Stock, then stock is put into into steamer, cure stock, open steam 0.1～0.4mPa of pressure, moisture is less than 9%, temperature 95
～106 DEG C, then curing embryo is added to into parch in frying pan, make to cook thoroughly softening, reducing moisture increases temperature, parch temperature
115～130 DEG C, material embryo water tariff collection is 1～4%, while addition is cooked after partial crushing, then by the shelled peanut after parch
In being placed in oil press, extracted oil at 140～150 DEG C, obtained virgin oil, finally by virgin oil carry out fast cooling, stirring,
Washing process, after temperature reaches 18 DEG C, directly filters, and by filter cloth by separation of solid and liquid, reaches limpid, transparent, free from admixture, obtains final product
Peanut oil, in mass ratio 1:10 are soaked in kaolin 1～2 day in the refined peanut oil of above-mentioned gained, after kaolin saturation, mistake
Filter, obtains saturation peanut oil kaolin, by saturation peanut oil kaolin and deionized water in mass ratio 1:9 mixing, are placed in ultrasonic wave
10～30min is stirred in shaker, then moves into 25～45min of sonic oscillation in 50～70 DEG C of isothermal vibration beds, turbid liquid must be mixed,
The sodium nitrate solution of 300～400mL mass fractions 5～7% is measured respectively and mass fraction is fully mixed for 5～7% silver nitrate solutiones
Close, obtain mixed solution, it is 1 that mixed liquor is pressed after mixing with the turbid liquid volume ratio of mixing for preparing:7, it is equal with 300～400r/min stirrings
It is even to obtain mixed liquor, constantly it is added dropwise 0.5～1.0mol/L sodium hydroxide solutions in the mixed liquor of above-mentioned preparation, and with 400 ~
600r/min stirrings are filtered until precipitation is complete, collect filter cake, and in an oven, temperature for 100～110 DEG C carry out drying 1～
3h, obtains dried object, in moving it into calcining furnace, under nitrogen protective condition at 800～900 DEG C, after 1～3h of calcining, crushes
And 150～180 mesh sieves are crossed, and the particulate matter that sieves is obtained, it is 1 by mass ratio：7 particulate matter that sieves is immersed in sealing with sanitary sewage
Anaerobic jar in ferment 1～3 day, then 30～40 DEG C of fermentation temperature filters, and collects fermentate, in ventilated environment, relatively
Humidity is under 80～90%, naturally mouldy, ferments every 1～2h continuous drip washing of 150～250mL of malic acid during mouldy
Thing, treats above-mentioned surface particles fungus growth to 8～12mm, with the H that mass fraction is 5～15%2O2Solution sterilization, filters, Jing
It is dried, granulates, obtains final product removal heavy metals polluted by copper material.
Example 1
The ripe peanuts of 1kg are chosen, impurity elimination is subsequently shelled, and sort out shelled peanut, impurity elimination is put into broken in the shelled peanut of impurity elimination
In broken machine, every shelled peanut is broken into into the particle of 6 lobes, particle is squeezed into into the stock of thick 0.5mm snowflakes sheet, then by embryo
Material is put into steamer, cures stock, open steam pressure 0.1mPa, and moisture is less than 9%, 95 DEG C of temperature, then will curing embryo's addition
The parch in frying pan, makes to cook thoroughly softening, and reducing moisture increases temperature, and 115 DEG C of parch temperature expects embryo water tariff collection 1%,
Addition is cooked after partial crushing simultaneously, then the shelled peanut after parch is placed in oil press, extracted oil at 140 DEG C,
Virgin oil is obtained, finally virgin oil fast cooling, stirring, washing process is carried out into, after temperature reaches 18 DEG C, is directly filtered, led to
Separation of solid and liquid is reached limpid, transparent, free from admixture by filter cloth, obtains final product peanut oil, and in mass ratio 1:10 are soaked in kaolin
State 1 day in the refined peanut oil of gained, after kaolin saturation, filter, saturation peanut oil kaolin is obtained, by saturation peanut oil kaolinite
Soil and deionized water in mass ratio 1:9 mixing, are placed in supersonic oscillations instrument and stir 10min, then move into 50 DEG C of isothermal vibration beds
Middle sonic oscillation 25min, must mix turbid liquid, and it is 5% nitre that the sodium nitrate solution of 300mL mass fractions 5% and mass fraction are measured respectively
Sour silver solution is sufficiently mixed, and obtains mixed solution, and it is 1 that mixed liquor is pressed after mixing with the turbid liquid volume ratio of mixing for preparing:7, with 300r/
Min is uniformly mixing to obtain mixed liquor, the continuous dropwise addition 0.5mol/L sodium hydroxide solutions in the mixed liquor of above-mentioned preparation, and with
400r/min stirrings are until precipitate complete, filter cake is collected in filtration, and in an oven, temperature carries out drying 1h for 100 DEG C, obtains
Dried object, in moving it into calcining furnace, under nitrogen protective condition at 800 DEG C, after calcining 1h, crushes and crosses 150 mesh sieves, obtains
Sieve particulate matter, is 1 by mass ratio：7 sieve particulate matter and sanitary sewage is immersed in the anaerobic jar of sealing and ferments 1
My god, then 30 DEG C of fermentation temperature filters, and collects fermentate, and in ventilated environment, relative humidity is under 80%, naturally mouldy,
Every the 1h continuous drip washing fermentates of malic acid 150mL during mould, treat that above-mentioned surface particles fungus growth, to 8mm, uses matter
Amount fraction is 5% H2O2Solution sterilization, filters, drying, granulation, obtains final product removal heavy metals polluted by copper material.
Waste water of the 13L containing heavy metal copper is taken, it is 150mg/L to determine its heavy metal copper content, is added under 400r/min stirrings
Enter the obtained removal heavy metals polluted by copper material of the 1g present invention, then move into vibration bed vibration 15min, static 25min, determine
Its heavy metal in waste water copper content is 0.2mg/L, and clearance reaches 99.86%, and circulation absorption is tested for 9 times, and its clearance is still
More than 99%, absorption is iteratively repeated until adsorbing and reaches saturation, be respectively 10% salt with 1mol NaOH and mass fraction
Dry after acid elution, in 150 DEG C of baking ovens 1h is toasted, you can regeneration, it is reachable to heavy metal in waste water copper removal rate after regeneration
More than 97%.
Example 2
The ripe peanuts of 2kg are chosen, impurity elimination is subsequently shelled, and sort out shelled peanut, impurity elimination is put into broken in the shelled peanut of impurity elimination
In broken machine, every shelled peanut is broken into into the particle of 7 lobes, particle is squeezed into into the stock of thick 0.7mm snowflakes sheet, then by embryo
Material is put into steamer, cures stock, open steam pressure 0.2mPa, and moisture is less than 9%, 100 DEG C of temperature, then will curing embryo's addition
The parch in frying pan, makes to cook thoroughly softening, and reducing moisture increases temperature, and 122 DEG C of parch temperature expects embryo water tariff collection 2%,
Addition is cooked after partial crushing simultaneously, then the shelled peanut after parch is placed in oil press, extracted oil at 145 DEG C,
Virgin oil is obtained, finally virgin oil fast cooling, stirring, washing process is carried out into, after temperature reaches 18 DEG C, is directly filtered, led to
Separation of solid and liquid is reached limpid, transparent, free from admixture by filter cloth, obtains final product peanut oil, and in mass ratio 1:10 are soaked in kaolin
State 1 day in the refined peanut oil of gained, after kaolin saturation, filter, saturation peanut oil kaolin is obtained, by saturation peanut oil kaolinite
Soil and deionized water in mass ratio 1:9 mixing, are placed in supersonic oscillations instrument and stir 20min, then move into 60 DEG C of isothermal vibration beds
Middle sonic oscillation 35min, must mix turbid liquid, and it is 6% nitre that the sodium nitrate solution of 350mL mass fractions 6% and mass fraction are measured respectively
Sour silver solution is sufficiently mixed, and obtains mixed solution, and it is 1 that mixed liquor is pressed after mixing with the turbid liquid volume ratio of mixing for preparing:7, with 350r/
Min is uniformly mixing to obtain mixed liquor, the continuous dropwise addition 0.7mol/L sodium hydroxide solutions in the mixed liquor of above-mentioned preparation, and with
500r/min stirrings are until precipitate complete, filter cake is collected in filtration, and in an oven, temperature carries out drying 2h for 105 DEG C, obtains
Dried object, in moving it into calcining furnace, under nitrogen protective condition at 850 DEG C, after calcining 2h, crushes and crosses 165 mesh sieves, obtains
Sieve particulate matter, is 1 by mass ratio：7 sieve particulate matter and sanitary sewage is immersed in the anaerobic jar of sealing and ferments 2
My god, then 35 DEG C of fermentation temperature filters, and collects fermentate, and in ventilated environment, relative humidity is under 85%, naturally mouldy,
Every the 1.5h continuous drip washing fermentates of malic acid 200mL during mould, treat that above-mentioned surface particles fungus growth, to 10mm, is used
Mass fraction is 10% H2O2Solution sterilization, filters, drying, granulation, obtains final product removal heavy metals polluted by copper material.
Waste water of the 2L containing heavy metal copper is taken, its heavy metal copper content is determined for 200mg/L, the addition under 500r/min stirrings
The 2g present invention is obtained to remove heavy metals polluted by copper material, then moves into vibration bed vibration 17min, static 27min, determines it
Heavy metal in waste water copper content is below 0.15mg/L, and clearance reaches 99.93%, and circulation absorption is tested for 9 times, and its clearance is still
So more than 99%, absorption is iteratively repeated until adsorbing and reaches saturation, be respectively 10% with 1mol NaOH and mass fraction
Dry after salt acid elution, in 155 DEG C of baking ovens 2h is toasted, you can regeneration, it is reachable to heavy metal in waste water copper removal rate after regeneration
More than 97%.
Example 3
The ripe peanuts of 3kg are chosen, impurity elimination is subsequently shelled, and sort out shelled peanut, impurity elimination is put into broken in the shelled peanut of impurity elimination
In broken machine, every shelled peanut is broken into into the particle of 8 lobes, particle is squeezed into into the stock of thick 1.0mm snowflakes sheet, then by embryo
Material is put into steamer, cures stock, open steam pressure 0.4mPa, and moisture is less than 9%, 106 DEG C of temperature, then will curing embryo's addition
The parch in frying pan, makes to cook thoroughly softening, and reducing moisture increases temperature, and 130 DEG C of parch temperature expects embryo water tariff collection 4%,
Addition is cooked after partial crushing simultaneously, then the shelled peanut after parch is placed in oil press, extracted oil at 150 DEG C,
Virgin oil is obtained, finally virgin oil fast cooling, stirring, washing process is carried out into, after temperature reaches 18 DEG C, is directly filtered, led to
Separation of solid and liquid is reached limpid, transparent, free from admixture by filter cloth, obtains final product peanut oil, and in mass ratio 1:10 are soaked in kaolin
State 2 days in the refined peanut oil of gained, after kaolin saturation, filter, saturation peanut oil kaolin is obtained, by saturation peanut oil kaolinite
Soil and deionized water in mass ratio 1:9 mixing, are placed in supersonic oscillations instrument and stir 30min, then move into 70 DEG C of isothermal vibration beds
Middle sonic oscillation 45min, must mix turbid liquid, and it is 7% nitre that the sodium nitrate solution of 400mL mass fractions 7% and mass fraction are measured respectively
Sour silver solution is sufficiently mixed, and obtains mixed solution, and it is 1 that mixed liquor is pressed after mixing with the turbid liquid volume ratio of mixing for preparing:7, with 400r/
Min is uniformly mixing to obtain mixed liquor, the continuous dropwise addition 1.0mol/L sodium hydroxide solutions in the mixed liquor of above-mentioned preparation, and with
600r/min stirrings are until precipitate complete, filter cake is collected in filtration, and in an oven, temperature carries out drying 3h for 110 DEG C, obtains
Dried object, in moving it into calcining furnace, under nitrogen protective condition at 900 DEG C, after calcining 3h, crushes and crosses 180 mesh sieves, obtains
Sieve particulate matter, is 1 by mass ratio：7 sieve particulate matter and sanitary sewage is immersed in the anaerobic jar of sealing and ferments 3
My god, then 40 DEG C of fermentation temperature filters, and collects fermentate, and in ventilated environment, relative humidity is under 90%, naturally mouldy,
Every the 2h continuous drip washing fermentates of malic acid 250mL during mould, treat that above-mentioned surface particles fungus growth, to 12mm, uses matter
Amount fraction is 15% H2O2Solution sterilization, filters, drying, granulation, obtains final product removal heavy metals polluted by copper material.
Waste water of the 3L containing heavy metal copper is taken, its heavy metal copper content is determined for 250mg/L, the addition under 600r/min stirrings
The 3g present invention is obtained to remove heavy metals polluted by copper material, then moves into vibration bed vibration 20min, static 30min, determines it
Heavy metal in waste water copper content is 0.10mg/L, and clearance reaches 99.96%, and 9 experiments of circulation absorption, its clearance still exists
More than 99%, absorption is iteratively repeated until adsorbing reach saturation, it is respectively 10% hydrochloric acid with 1mol NaOH and mass fraction
Dry after washing, in 160 DEG C of baking ovens 3h is toasted, you can regeneration, to heavy metal in waste water copper removal rate up to 97% after regeneration
More than.
Claims (1)
1. a kind of preparation method for removing heavy metals polluted by copper material, it is characterised in that concrete preparation process is：
（1）The ripe peanuts of 1～3kg are chosen, impurity elimination is subsequently shelled, sort out shelled peanut, impurity elimination, by the shelled peanut of impurity elimination
It is put in disintegrating machine, every shelled peanut is broken into into the particle of 6～8 lobes, particle is squeezed into into thickness 0.5～1.0mm snowflake sheets
Stock, then stock is put into into steamer, cure stock, open steam 0.1～0.4mPa of pressure, moisture is less than 9%, temperature 95
～106 DEG C, then curing embryo is added to into parch in frying pan, make to cook thoroughly softening, reducing moisture increases temperature, parch temperature
115～130 DEG C, material embryo water tariff collection is 1～4%, while addition is cooked after partial crushing, then by the shelled peanut after parch
In being placed in oil press, extracted oil at 140～150 DEG C, obtained virgin oil, finally by virgin oil carry out fast cooling, stirring,
Washing process, after temperature reaches 18 DEG C, directly filters, and by filter cloth by separation of solid and liquid, reaches limpid, transparent, free from admixture, obtains final product
Peanut oil；
（2）In mass ratio 1:10 are soaked in kaolin 1～2 day in the refined peanut oil of above-mentioned gained, after kaolin saturation, mistake
Filter, obtains saturation peanut oil kaolin, by saturation peanut oil kaolin and deionized water in mass ratio 1:9 mixing, are placed in ultrasonic wave
10～30min is stirred in shaker, then moves into 25～45min of sonic oscillation in 50～70 DEG C of isothermal vibration beds, turbid liquid must be mixed；
（3）It is 5～7% silver nitrate solutiones to measure the sodium nitrate solution of 300～400mL mass fractions 5～7% and mass fraction respectively
It is sufficiently mixed, obtains mixed solution, mixed liquor and step is pressed after mixing（2）The turbid liquid volume ratio of mixing of preparation is 1:7, with 300～
400r/min is uniformly mixing to obtain mixed liquor；
（4）0.5～1.0mol/L sodium hydroxide solutions are constantly added dropwise in the mixed liquor of above-mentioned preparation, and with 400 ~ 600r/min
Stirring is until precipitate complete, filter cake is collected in filtration, and in an oven, temperature carries out 1～3h of drying for 100～110 DEG C, obtains
Dried object, in moving it into calcining furnace, under nitrogen protective condition at 800～900 DEG C, after 1～3h of calcining, crushes and crosses 150
～180 mesh sieves, obtain the particulate matter that sieves；
（5）It is 1 by mass ratio：7 particulate matter that sieves is immersed in the anaerobic jar of sealing with sanitary sewage and ferments 1～3 day,
30～40 DEG C of fermentation temperature, then filters, and collects fermentate, and in ventilated environment, relative humidity is under 80～90%, to send out naturally
It is mould, every 1～2h continuous drip washing fermentates of 150～250mL of malic acid during mouldy；
（6）Above-mentioned surface particles fungus growth is treated to 8～12mm, with the H that mass fraction is 5～15%2O2Solution sterilization, mistake
Filter, drying, granulation obtain final product removal heavy metals polluted by copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956009.9A CN106629968A (en) | 2016-11-03 | 2016-11-03 | Preparation method of adsorption material used for removing heavy metal copper in waste water |
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|---|---|---|---|
| CN201610956009.9A CN106629968A (en) | 2016-11-03 | 2016-11-03 | Preparation method of adsorption material used for removing heavy metal copper in waste water |
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