CN108147584A - A kind of method using PAN-PEI amido chelate fibre Treatment of Copper sewage - Google Patents
A kind of method using PAN-PEI amido chelate fibre Treatment of Copper sewage Download PDFInfo
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- CN108147584A CN108147584A CN201711497105.2A CN201711497105A CN108147584A CN 108147584 A CN108147584 A CN 108147584A CN 201711497105 A CN201711497105 A CN 201711497105A CN 108147584 A CN108147584 A CN 108147584A
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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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- 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
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/16—Organic material
- B01J39/18—Macromolecular compounds
- B01J39/22—Cellulose or wood; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
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- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
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- D01F6/96—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from other synthetic polymers
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/422—Treatment of water, waste water, or sewage by ion-exchange using anionic exchangers
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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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Abstract
The present invention relates to a kind of methods using PAN PEI amido chelate fibre Treatment of Copper sewage, belong to environment-protection wastewater process field.The method is：Sewage containing copper is removed into solid impurity, its pH value is adjusted to 4~5 with sulfuric acid solution；Several ion exchange columns are respectively charged into after the fiber is soaked in water, series connection forms adsorption system；By pretreated sewage containing copper with the flow velocity of 1~10ml/ (ming) by adsorption system, the copper ion in sewage containing copper is attracted on the fiber, qualified discharge when copper ion concentration of the detection into being discharged is less than 0.5mg/L；When the copper ion concentration of the first radical ion exchange column water outlet is equal to the copper ion concentration into water, the first radical ion exchange column is replaced, then adds at adsorption system end and fills a new ion exchange column equipped with the fiber.The fiber can fast and efficiently in absorption effluent copper ion, performance is substantially better than existing copper ion adsorbing material.
Description
Technical field
The present invention relates to a kind of methods using PAN-PEI amido chelate fibre Treatment of Copper sewage, belong to environment-protection wastewater
Processing technology field.
Background technology
A large amount of cupric is produced during the exploitation of copper, smelting and plating, intermetallic composite coating, circuit board printing etc. to give up
Water, because qualified discharge does not lead to surface water and groundwater by different degrees of pollution.And the heavy metal ion such as copper are to the danger of people
Evil is very big, and aquatic animals and plants absorb copper ion from polluted-water and are enriched in vivo, enter human body by food chain, in human body
Savings gets up to cause slow poisoning, therefore the adsorbing separation of copper ions in sewage has very important significance in organ.
Mainly there is the method for copper ion in existing treated sewage：Chemical precipitation method, bioanalysis, electrolysis, membrane separation process and
Ion-exchange etc..Chemical precipitation method is easy to operate, but only shifts heavy metal, be easy to cause secondary pollution；Biology
Biological flocculant production cost is high in method；Electrolysis is not suitable for sewage of low concentration processing；Membrane module price is held high in membrane separation process
It is expensive, cause cost of sewage disposal height；The exchange capacity of ion-exchange is low, water process amount is small.
Research shows that chelatropic reaction can occur with the various metals ion in waste water for macromolecule organic sequestering agent, generation is steady
Fixed and metallo-chelate not soluble in water, can remove effectively the heavy metal ion in waste water, processing water be made to reach country useless
Water discharge standard.
Invention content
In view of this, PAN-PEI amido chelate fibre Treatment of Copper sewage is utilized the purpose of the present invention is to provide a kind of
Method.
Purpose to realize the present invention, provides following technical scheme.
A kind of method using PAN-PEI amido chelate fibre Treatment of Copper sewage, the method step are as follows：
(1) pretreatment of sewage containing copper：Sewage containing copper is removed into suspended particulate substance and granular solids impurity, then uses sulfuric acid
Solution adjusts its pH value to 4~5, obtains pretreated sewage containing copper；
The sewage containing copper is the sewage that more than 95% metal cation of molar fraction is copper ion；
It is miscellaneous can to remove suspended particulate substance and granular solids therein by the way that sewage containing copper by husky filter or is staticly settled
Matter.
(2) pretreatment of PAN-PEI amidos chelate fibre：After the fiber is impregnated with water more than deionized water purity
Several ion exchange columns are respectively charged into, then the ion exchange column connect to form adsorption system；
(3) step (1) pretreated sewage containing copper is passed through with the flow velocity of 1ml/ (ming)~10ml/ (ming)
Adsorption system, the copper ion in sewage containing copper are attracted on the fiber, and detection to the copper ion concentration in being discharged is less than
Qualified discharge during 0.5mg/L；
(4) when the copper ion concentration of the first radical ion exchange column water outlet is equal to the copper ion concentration into water, first is represented
The fibers adsorption amount in radical ion exchange column reaches saturation, replaces the first radical ion exchange column, then at adsorption system end
Tail, which adds, fills a new ion exchange column equipped with the fiber.
PAN-PEI amidos chelate fibre reproducible utilization of the present invention：Adsorbance is reached to the fiber of saturation
Elution 4h~6h is shaken, then be washed to neutrality with hydrochloric acid solution, then shake regeneration 2h~3h with ammonia spirit, the fiber is again
Work(is generated, repeats and utilizes.
It is preferred that concentration of hydrochloric acid solution is 1mol/L, water is water more than deionized water purity, a concentration of 1mol/ of ammonia spirit
L。
PAN-PEI amidos chelate fibre of the present invention is to be grafted to polyacrylonitrile (PAN) fibre by polyethyleneimine (PEI)
It is formed in dimension.
Further, the fiber is to react generation amido bond grafting by the amido on PEI with the carboxyl on PAN to form
's.
A kind of preparation method of PAN-PEI amidos chelate fibre of the present invention：
(1) hydrolysis of PAN fiber；
(2) amido on PEI reacts the graft reaction of generation amido bond with the carboxyl on PAN.
Further, preparation method step is as follows：
(1) solvent and NaOH are added in container, are heated to 70 DEG C~120 DEG C, added in PAN fiber and reaction is hydrolyzed
3h~6h takes out hydrolysis product, and 2h~for 24 hours is impregnated in the HCl solution of 0.5mol/L~3mol/L, obtains PAN-COOH
Hydrolysis fiber is dried after being washed with water to neutrality；
(2) the PEI aqueous solutions that mass fraction is 5%~50% are added in container, are heated to 80 DEG C~120 DEG C, add
The PAN-COOH hydrolysis fibers for entering neutral drying carry out graft reaction 2h~6h, and graft reaction product is washed to neutrality, dry
Final product is obtained, is a kind of PAN-PEI amidos chelate fibre of the present invention.
In step (1)：
Solvent is water or glycol water, and preferred solvent is the glycol water that volume fraction is 10%~30%；
Preferred solvent volume (ml):NaOH mass (g):The ratio of PAN fiber quality (g) is 100:0.5~5:2；
The temperature of selective hydrolysis reaction is 80 DEG C~100 DEG C.
It is preferred that a concentration of 1mol/L of HCl solution.
In step (2)：
It is preferred that the mass fraction of PEI aqueous solutions is 10%~30%.
It is preferred that the temperature of graft reaction is 90 DEG C~110 DEG C.
The volume (ml) of PEI aqueous solutions is 100 with the ratio of PAN-COOH hydrolysis fiber quality (g):1~4, preferably PEI
The volume (ml) of aqueous solution is 100 with the ratio of PAN-COOH hydrolysis fiber quality (g):2.
Water in step (1) and (2) is all water of the purity more than deionized water purity.
Advantageous effect
1st, the present invention relates to a kind of method using PAN-PEI amido chelate fibre Treatment of Copper sewage, the method is adopted
With a kind of PAN-PEI amidos chelate fibre, copper ion that can fast and efficiently in absorption effluent, performance is substantially better than
Existing copper ion adsorbing material；
2nd, the present invention relates to a kind of method using PAN-PEI amido chelate fibre Treatment of Copper sewage, the method knots
The performance of PAN-PEI amido chelate fibres is closed, a kind of method available for industrial Treatment of Copper sewage can be designed, is relatively passed
System method has a clear superiority.
Description of the drawings
Fig. 1 is the infrared spectrogram of PAN fiber in embodiment 1.
Fig. 2 is the infrared spectrogram of PAN-PEI amido chelate fibres in implementation column 1.
Fig. 3 is PAN-PEI amido chelate fibre regeneration rates in embodiment 4 with the change curve of regeneration times.
Specific embodiment
Below in conjunction with the present embodiment, the present invention is further explained, but is not intended to limit present disclosure.
Water used in following embodiment is deionized water, and PAN fiber is the PAN fiber of 1.5D.
Embodiment 1
(1) glycol water that 100ml volume fractions are 10% is added to 0.5g NaOH in three-neck flask, added
Heat adds in 2.02g PAN fibers, is taken out after hydrolysis 6h, impregnate 2h in the HCl solution of a concentration of 1mol/L to 80 DEG C,
PAN-COOH hydrolysis fibers are obtained, are dried after being washed with water to neutrality；
(2) the PEI aqueous solutions of 100ml mass fractions 20% are added in three-neck flask, after being heated to 90 DEG C, added in
The PAN-COOH hydrolysis fibers of 2.10g neutrality drying, PEI and PAN-COOH hydrolysis fiber graft reaction 2h take out graft reaction
It is washed to neutrality after product, dry final product, is a kind of PAN-PEI amidos chelate fibre of the present invention.
PAN fiber in the present embodiment and the final product being prepared are tested as follows：
(1) examination of infrared spectrum：
Instrument is 6700 Fourier infrared spectrographs of Nicolet of Nicolet companies of the U.S..
The obtained infrared spectrogram of PAN fiber is tested as shown in Figure 1, the infrared spectrogram of final product is as shown in Figure 2.By
Fig. 1 is compared with the content that Fig. 2 is shown it is found that in 3200cm-1~3500cm-1In the range of change it is very big, this is because O-H and
The stretching vibration of N-H；2242cm-1It is the stretching vibration of the key band C ≡ N of PAN, Fig. 2 is smaller than the peak area in Fig. 1, can be with
Cyano amount drastically declines after seeing reaction, illustrates that the extent of reaction is higher.In Fig. 2, in 1610cm-1And 1556cm-1Place goes out respectively
II band of amide Ⅰ and amide, 1610cm are showed-1It is the stretching vibration of C=O, occurs due to conjugated structure and hydrogen bond action
Blue shift, 1556cm-1It is the in-plane bending vibration of N-H, 1396cm-1And 1314cm-1Place is C- in primary amide and secondary amide respectively
The stretching vibration of N, 1198cm-1It is the stretching vibration of C-O-C.1068cm-1It is the skeletal vibration of C-C.
Become in conclusion can be known by the ir data of Fig. 1 and Fig. 2 by reacting PAN fiber for final product, it is whole
Product is PAN-PEI amido chelate fibres.
(2) amine groups content is tested：
Test method：Acid-base titration, the specific steps are：1g final product PAN-PEI amido chelate fibres are soaked into
2h in the hydrochloric acid solution of 0.1mol/L takes supernatant 10mL, is titrated with the standard caustic soda solution of 0.1mol/L, calculates amine
Base content is 3.01mmol/g.
A kind of method using PAN-PEI amidos chelate fibre Treatment of Copper sewage made from the present embodiment, the method
Step is as follows：
(1) pretreatment of sewage containing copper：First by sewage containing copper by staticly settling, except the suspended matter in decontaminated water and
Grain object solid impurity, it is 4 then to adjust its pH with the sulfuric acid solution of a concentration of 1mol/L, obtains pretreated sewage containing copper；
It is the sewage that more than 95% metal cation of molar fraction is copper ion in the sewage containing copper, the concentration of copper ion
For 147mg/L
(2) pretreatment of PAN-PEI amidos chelate fibre：After the fiber is impregnated with water more than deionized water purity
Diameter 10mm is packed into, in the ion exchange column of high 300mm (10 × 300mm of Φ), fills 3, fiber described in every dress 2.03g, so
Afterwards 3 radical ion exchange columns are connected to form adsorption system；
(3) step (1) pretreated sewage containing copper is passed through into adsorption system, cupric dirt with the flow velocity of 1ml/ (ming)
Copper ion in water is attracted on the fiber, constant volume samapling is discharged to treated, with the Atomic absorption of PE companies of the U.S.
Spectrometer AA-PinAAcle measures the concentration of wherein copper ion, and copper ion concentration of the detection into being discharged is less than 0.5mg/L, reaches
Mark discharge；
(4) when the copper ion concentration of the first radical ion exchange column water outlet is equal to the copper ion concentration into water, first is represented
The fibers adsorption amount in radical ion exchange column reaches saturation, replaces the first radical ion exchange column, then at adsorption system end
Tail, which adds, fills a new ion exchange column equipped with the fiber.
PAN-PEI amido chelate fibre reproducible utilizations described in the present embodiment：Adsorbance is reached to the fibre of saturation
The hydrochloric acid solution concussion elution 4h of a concentration of 1mol/L of Wesy, then neutrality is washed to, then shaken with the ammonium hydroxide of a concentration of 1mol/L
Regeneration 2h is swung, the regeneration success is repeated and utilized.
Embodiment 2
(1) glycol water that 100ml volume fractions are 20% is added to 3g NaOH in three-neck flask, heated
To 90 DEG C, 2.12g PAN fibers are added in, is taken out after hydrolysis 4h, is impregnated 10h in the HCl solution of a concentration of 1mol/L, obtain
To PAN-COOH hydrolysis fibers, dried after being washed to neutrality；
(2) the PEI aqueous solutions that 100ml mass fractions are 20% are added in three-neck flask, after being heated to 100 DEG C, added
Enter the PAN-COOH hydrolysis fibers of 2.14g neutrality drying, PEI and PAN-COOH hydrolysis fiber graft reaction 4h, by graft reaction
Product is washed to neutrality, is dried to obtain final product, is a kind of PAN-PEI amidos chelate fibre of the present invention.
PAN fiber in the present embodiment and the final product being prepared are tested as follows：
(1) examination of infrared spectrum：
Instrument is 6700 Fourier infrared spectrographs of Nicolet of Nicolet companies of the U.S..
Test result is similar with embodiment 1 (1) result, it is known that final product is PAN-PEI amido chelate fibres.
(2) amine groups content is tested：
Test method：Acid-base titration, the specific steps are：1g final product PAN-PEI amido chelate fibres are soaked into
2h in the hydrochloric acid solution of 0.1mol/L takes supernatant 10mL, is titrated with the standard caustic soda solution of 0.1mol/L, calculates amine
Base content is 4.17mmol/g.
A kind of method using PAN-PEI amidos chelate fibre Treatment of Copper sewage made from the present embodiment, the method
Step is as follows：
(1) pretreatment of sewage containing copper：First by sewage containing copper by staticly settling, except the suspended matter in decontaminated water and
Grain object solid impurity, it is 5 then to adjust its pH with the sulfuric acid solution of a concentration of 1mol/L, obtains pretreated sewage containing copper；
It is the sewage that more than 95% metal cation of molar fraction is copper ion in the sewage containing copper, the concentration of copper ion
For 196mg/L
(2) pretreatment of PAN-PEI amidos chelate fibre：After the fiber is impregnated with water more than deionized water purity
Diameter 10mm is packed into, in the ion exchange column of high 300mm (10 × 300mm of Φ), fills 3, fiber described in every dress 1.97g, so
Afterwards 3 radical ion exchange columns are connected to form adsorption system；
(3) step (1) pretreated sewage containing copper is passed through into adsorption system, cupric dirt with the flow velocity of 5ml/ (ming)
Copper ion in water is attracted on the fiber, constant volume samapling is discharged to treated, with the Atomic absorption of PE companies of the U.S.
Spectrometer AA-PinAAcle measures the concentration of wherein copper ion, and copper ion concentration of the detection into being discharged is less than 0.5mg/L, reaches
Mark discharge；
(4) when the copper ion concentration of the first radical ion exchange column water outlet is equal to the copper ion concentration into water, first is represented
The fibers adsorption amount in radical ion exchange column reaches saturation, replaces the first radical ion exchange column, then at adsorption system end
Tail, which adds, fills a new ion exchange column equipped with the fiber.
PAN-PEI amido chelate fibre reproducible utilizations described in the present embodiment：Adsorbance is reached to the fibre of saturation
The hydrochloric acid solution concussion elution 5h of a concentration of 1mol/L of Wesy, then neutrality is washed to, then shaken with the ammonium hydroxide of a concentration of 1mol/L
Regeneration 3h is swung, the regeneration success is repeated and utilized.
Embodiment 3
(1) glycol water that 100ml volume fractions are 30% is added to 5g NaOH in three-neck flask, heated
To 100 DEG C, 1.95g PAN fibers are added in, takes out, is impregnated in the HCl solution of a concentration of 1mol/L for 24 hours after hydrolysis 6h,
PAN-COOH hydrolysis fibers are obtained, are dried after being washed to neutrality；
(2) the PEI solution that 100ml mass fractions are 30% is added in three-neck flask, after being heated to 110 DEG C, added in
The PAN-COOH hydrolysis fibers of 2.01g neutrality drying, PEI and PAN-COOH hydrolysis fiber graft reaction 6h take out graft reaction
Neutrality is washed to after product, is dried to obtain final product, is a kind of PAN-PEI amidos chelate fibre of the present invention.
PAN fiber in the present embodiment and the final product being prepared are tested as follows：
(1) examination of infrared spectrum：
Instrument is 6700 Fourier infrared spectrographs of Nicolet of Nicolet companies of the U.S..
Test result is similar with embodiment 1 (1) result, it is known that final product is PAN-PEI amido chelate fibres.
(2) amine groups content is tested：
Test method：Acid-base titration, the specific steps are：1g final product PAN-PEI amido chelate fibres are soaked into
2h in the hydrochloric acid solution of 0.1mol/L takes supernatant 10mL, is titrated with the standard caustic soda solution of 0.1mol/L, calculates amine
Base content is 5.79mmol/g.
A kind of method using PAN-PEI amidos chelate fibre Treatment of Copper sewage made from the present embodiment, the method
Step is as follows：
(1) pretreatment of sewage containing copper：First by sewage containing copper by staticly settling, except the suspended matter in decontaminated water and
Grain object solid impurity, it is 5 then to adjust its pH with the sulfuric acid solution of a concentration of 1mol/L, obtains pretreated sewage containing copper；
It is the sewage that more than 95% metal cation of molar fraction is copper ion in the sewage containing copper, the concentration of copper ion
For 250mg/L
(2) pretreatment of PAN-PEI amidos chelate fibre：After the fiber is impregnated with water more than deionized water purity
Diameter 10mm is packed into, in the ion exchange column of high 300mm (10 × 300mm of Φ), fills 3, fiber described in every dress 2.13g, so
Afterwards 3 radical ion exchange columns are connected to form adsorption system；
(3) step (1) pretreated sewage containing copper is passed through into adsorption system, cupric with the flow velocity of 10ml/ (ming)
Copper ion in sewage is attracted on the fiber, is discharged constant volume samapling to treated, is inhaled with the atom of PE companies of the U.S.
The concentration that spectrometer AA-PinAAcle measures wherein copper ion is received, copper ion concentration of the detection into being discharged is less than 0.5mg/L,
Qualified discharge；
(4) when the copper ion concentration of the first radical ion exchange column water outlet is equal to the copper ion concentration into water, first is represented
The fibers adsorption amount in radical ion exchange column reaches saturation, replaces the first radical ion exchange column, then at adsorption system end
Tail, which adds, fills a new ion exchange column equipped with the fiber.
PAN-PEI amido chelate fibre reproducible utilizations described in the present embodiment：Adsorbance is reached to the fibre of saturation
The hydrochloric acid solution concussion elution 6h of a concentration of 1mol/L of Wesy, then neutrality is washed to, then shaken with the ammonium hydroxide of a concentration of 1mol/L
Regeneration 3h is swung, the regeneration success is repeated and utilized.
Embodiment 4
The regeneration rate of fiber is measured by Staticadsorption experiment：Pipette a concentration of 250mg/L's of 200mL with pipette
CuSO4Solution is placed in conical flask with cover, and it is 4 to adjust its initial pH value with 1mol/L sulfuric acid, weighs what is prepared in embodiment 3
PAN-PEI amido chelate fibre 1g are added in conical flask, and constant temperature oscillation 6h makes absorption reach balance at 25 DEG C.Use Atomic absorption
Cu (II) concentration in solution when spectrometer measures balance calculates the adsorbance of PAN-PEI amido chelate fibres.Adsorbance is reached
The hydrochloric acid solution concussion elution 6h of a concentration of 1mol/L of the fiber of saturation, then neutrality is washed to, then with a concentration of
The ammonium hydroxide concussion regeneration 3h of 1mol/L, regeneration success repeat experiment 20 times, obtain that the results are shown in Figure 3, illustrate institute
It is functional to state fibers adsorption heavy metal ion, and renewable Posterior circle uses.
Claims (4)
- A kind of 1. method using PAN-PEI amido chelate fibre Treatment of Copper sewage, it is characterised in that：The method step is such as Under：(1) sewage containing copper is removed into suspended particulate substance and granular solids impurity, then adjusted its pH value to 4 with sulfuric acid solution~ 5, obtain pretreated sewage containing copper；The sewage containing copper is the sewage that more than 95% metal cation of molar fraction is copper ion；(2) several ion exchanges are respectively charged into after PAN-PEI amidos chelate fibre is impregnated with water more than deionized water purity Then the ion exchange column is connected to form adsorption system by column；(3) by pretreated sewage containing copper with the flow velocity of 1ml/ (ming)~10ml/ (ming) by adsorption system, contain Copper ion in copper sewage is attracted on the fiber, and copper ion concentration of the detection into being discharged is less than up to standard during 0.5mg/L Discharge；(4) when the first radical ion exchange column water outlet copper ion concentration be equal to the copper ion concentration into water when, represent first from The fibers adsorption amount in sub- exchange column reaches saturation, replaces the first radical ion exchange column, then adds at adsorption system end Fill a new ion exchange column equipped with the fiber.
- 2. a kind of method using PAN-PEI amido chelate fibre Treatment of Copper sewage according to claim 1, feature It is：By the way that sewage containing copper by husky filter or is staticly settled in step (1), suspended particulate substance and granular solids therein are removed Impurity.
- 3. a kind of method using PAN-PEI amido chelate fibre Treatment of Copper sewage according to claim 1 or 2, It is characterized in that：The PAN-PEI amido chelate fibre reproducible utilizations：Adsorbance is reached to the fiber hydrochloric acid of saturation Solution concussion elution 4h~6h, then is washed to neutrality, then shakes regeneration 2h~3h with ammonia spirit, the regeneration into Work(.
- 4. a kind of method using PAN-PEI amido chelate fibre Treatment of Copper sewage according to claim 3, feature It is：Concentration of hydrochloric acid solution is 1mol/L, and water is water more than deionized water purity, a concentration of 1mol/L of ammonia spirit.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322160A (en) * | 2018-05-29 | 2019-02-12 | 中国船舶重工集团公司第七八研究所 | A kind of cross-linking type PAN-COOH fiber and preparation method thereof |
| CN109502683A (en) * | 2018-12-13 | 2019-03-22 | 江苏国创新材料研究中心有限公司 | A kind of device and copper ion minimizing technology of copper-containing sulfuric acid ammonium salt waste water removal copper ion |
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| CN111850725A (en) * | 2020-06-19 | 2020-10-30 | 浙江工商大学 | Polyacrylonitrile-1-methyl piperazine chromogenic fiber and synthetic method and application thereof |
| CN111908557A (en) * | 2020-07-15 | 2020-11-10 | 东南大学 | Ion exchange fiber for adsorbing nitrate radical and preparation and application thereof |
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| CN109322160A (en) * | 2018-05-29 | 2019-02-12 | 中国船舶重工集团公司第七八研究所 | A kind of cross-linking type PAN-COOH fiber and preparation method thereof |
| CN109322160B (en) * | 2018-05-29 | 2021-10-08 | 中国船舶重工集团公司第七一八研究所 | Cross-linked PAN-COOH fiber and preparation method thereof |
| CN109502683A (en) * | 2018-12-13 | 2019-03-22 | 江苏国创新材料研究中心有限公司 | A kind of device and copper ion minimizing technology of copper-containing sulfuric acid ammonium salt waste water removal copper ion |
| CN109999761A (en) * | 2018-12-31 | 2019-07-12 | 邯郸派瑞电器有限公司 | A kind of polyethylene imine resin composite material, preparation method and application |
| CN111850725A (en) * | 2020-06-19 | 2020-10-30 | 浙江工商大学 | Polyacrylonitrile-1-methyl piperazine chromogenic fiber and synthetic method and application thereof |
| CN111850725B (en) * | 2020-06-19 | 2022-09-02 | 浙江工商大学 | Polyacrylonitrile-1-methyl piperazine chromogenic fiber and synthetic method and application thereof |
| CN111908557A (en) * | 2020-07-15 | 2020-11-10 | 东南大学 | Ion exchange fiber for adsorbing nitrate radical and preparation and application thereof |
| CN115440404A (en) * | 2021-06-03 | 2022-12-06 | 西南科技大学 | Method for treating high-temperature gas cooled reactor fuel element core preparation process wastewater by using novel functional fibers |
| CN115440404B (en) * | 2021-06-03 | 2024-04-26 | 西南科技大学 | Method for treating high-temperature gas cooled reactor fuel element core preparation process wastewater by using functionalized fibers |
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