CN109173995A - A kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorption capacity - Google Patents
A kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorption capacity Download PDFInfo
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- CN109173995A CN109173995A CN201811097366.XA CN201811097366A CN109173995A CN 109173995 A CN109173995 A CN 109173995A CN 201811097366 A CN201811097366 A CN 201811097366A CN 109173995 A CN109173995 A CN 109173995A
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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
- B01J20/20—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
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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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- 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
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
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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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- C02F1/66—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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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Abstract
The present invention discloses a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorption capacity, comprising the following steps: the chemical substance of release hydrogen ions is added into stamp waste liquid, is stirred to react, extractable is made to be condensed into tiny solid particle;The chemical agent for reacting with waste liquid and generating micro-bubble is stirred and added, bubble is made to stick solia particle;Lasting stirring with ultrasonication and is heated to forming bulky grain solid extract;It keeps ultrasonication and keeps the temperature, form blocky extract;It is shunk sufficiently to extract volume, stops ultrasonication;It goes to remove water, it is cooling;It is dry after taking-up extract is cooling;Activator is added after extract after drying is crushed to be uniformly mixed, under nitrogen protection in 700 DEG C of one step carbonization-activation 1-3h, adsorbent is made after being crushed.This method improves the adsorption capacity of prepared adsorbent, reaches 460mg/g or more to dye of positive ion adsorption capacity.
Description
Technical field
The invention belongs to environmental protection technical field, in particular to a kind of raising stamp pulp thickening object prepares adsorbent suction
The preparation method of attached capacity.
Background technique
Ink is made of pigment, binder, filler, additional material etc., can be divided into oil-based ink and water-based ink.Oiliness oil
Contain a large amount of organic solvent in ink, it is seriously polluted, gradually it is eliminated.Water-based ink mainly by water-soluble resin, pigment, alcohol,
Amine or ammonia and other additives and water composition.Water-based ink is wide in every field because of its health, environmental protection, safe characteristic
General application.Currently, a large amount of plastic package material uses water-based ink in stamp, printing more and more, in replacement color
When need to clean printing equipment and water-based ink storage tank, produce a certain amount of high concentration aqueous's ink jet printing waste liquid.This kind print
Containing pollutants such as pigment, water soluble acrylic resin, alcohol, amine (ammonia) in flower waste liquid, content of organics is more, and coloration is high, dirty
Dye it is extremely serious (coloration: 30,000 times or more, CODCr: 100,000-50 ten thousand mg/L), it is difficult to it handles.
Processing for this kind of waste liquid generallys use the chemical methodes such as Coagulation Method and is pre-processed, i.e., adds into waste liquid
Coagulant makes pollutant agglomerate to form sludge, then rolls filter, belt type dewaterer or centrifugal dehydrator etc. using sheet frame and carry out machinery
The solid-liquid separating methods such as dehydration are separated by solid-liquid separation, and water outlet carries out other chemistry or biological treatment to qualified discharge again.Due to useless
Pollutant concentration is high in liquid, and the sludge solid content of formation is up to 5-10%, it is difficult to dehydration, and by mechanism filter-pressing or from
The mud cake formed after heart dehydration carries out landfill disposal usually as solid waste, be easy to cause secondary pollution.
In recent years, domestic and foreign scholars to using various wastes prepare adsorbent and for dye waste water adsorbing and discoloring carry out
A large amount of research.Such as Su Shiung Lam utilizes orange peel in microwave-assisted lower obtained adsorbent, to the balance of peacock green
Adsorption capacity is up to 28.5 mgg-1;Adsorbent is made using plant residue in Alejandra Alicia etc., to acid dyes
Equilibrium adsorption capacities with basic dye are respectively up to 312.5 mgg-1With 500.0 mgg-1;Ta í sL Silva etc. utilizes work
Industry washs sludge and adsorbent is made, to reactive dye brilliant blue R equilibrium adsorption capacities up to 36.5 mgg-1;Syieluing
Adsorbent is made using weaving sludge in Wong etc., and the equilibrium adsorption capacities to active black and methylene blue are respectively 5 mgg-1
With 3.66 mgg-1;Adsorbent is made using leather-making mud in Geethakarthi A etc., measures it and inhales to the balance of REACTIVE RED 31
Attached capacity reaches 39.37mgg-1;Adsorbent is made using paper mill sludge in Li Wenhong etc., inhales to the balance of Reactive Red 24
Attached capacity is up to 15.68 mgg-1.Adsorbent is prepared with trade waste, not only prevent secondary pollution can be realized solid waste again
Resource utilization, have good environmental benefit and social benefit.But with the absorption of adsorbent prepared by trade waste
Performance is affected by raw material, and the adsorption effect of sludge base adsorbent is generally far below plant base adsorbent, the absorption to dyestuff
It is clearly present the low problem of equilibrium adsorption capacities.
Containing a large amount of organic matter available resources such as water-based acrylic resin in water-based ink sludge, as being prepared
At adsorbent and be applied to it is dye decolored, the secondary use of sludge may be implemented." a kind of high concentration is black printed useless for patent of invention
The method that liquid pollutant is extracted and utilized " (number of patent application CN201610904367.5) summary of the invention is " by high concentration black
The acidification of water-based ink stamp waste liquid, stirring make pollutant agglomerate to form paste sludge;The 100- of 5-10g/L is added into sludge
Sludge is heated to 50-90 DEG C of dehydration while stirring after mixing evenly by 500 mesh calcium miberal powders, is made sludge curing at bulk, is deviate from water
Discharge;Take out sludge hot squeeze to moisture percentage in sewage sludge it is dry lower than after 40%;Sludge isolation air after drying is heated to 400-
700 DEG C of heat preservation 1-4h;Sludge is cooled to 50 DEG C or less and is broken into graininess, the misty profit that sprinkling mass concentration is 0.1-0.2%
It is uniformly mixed after humectant solution;Mud granule is added in cationic dyeing waste water by 2-10g/L waste water dosage, is aerated
10-120min, precipitating or filtering removal mud granule are stirred, decolourize discharge of wastewater;Mud granule recycles 400-700 DEG C of heat again
It is raw, it is recycled." it is used for cationic dyeing waste water decoloring adsorbent dosage as 5-10g/L waste water.Such as embodiment
1 " is slowly added to 92% concentrated sulfuric acid into the high concentration black water ink jet printing waste liquid that COD is 39.2 ten thousand mg/L, stirring makes dirt
Dye object agglomerates to form sludge;The 200-500 mesh calcium miberal powder that 8g/L is added into sludge, after mixing evenly while stirring adds sludge
Heat makes sludge curing at bulk, takes off Chinese effluent to 75 DEG C of dehydrations;Take out sludge hot squeeze to moisture content it is dry lower than after 40%;
Sludge isolation air after drying is heated to 500 DEG C of heat preservation 2h;Sludge is cooled to 50 DEG C or less and is broken into graininess, is sprayed
It is uniformly mixed after the misty wetting agent solution that mass concentration is 0.1%;Mud granule is added to yellow sun by 5g/L waste water dosage
In ionic dye dyeing waste-water, aeration stirring 100min, precipitating removal mud granule, decolourize discharge of wastewater, yellow cationic dye
Material dyeing waste-water decolorizing rate reaches 99.5% or more." its adsorbent dosage be 5g/L waste water, hence it is evident that there are adsorbent absorption hold
Measure low, the big defect of adsorbent amount.
If the adsorption capacity of prepared adsorbent can be improved, adsorbent amount can be greatly reduced, save the cost, at raising
Effect is managed, overcomes adsorbent adsorption capacity during cationic dyeing waste water adsorbing and discoloring low, adsorbent amount is big to be lacked
It falls into.
Summary of the invention
The invention proposes the preparation methods that a kind of raising stamp pulp thickening object prepares adsorbent adsorption capacity, for sun
Ionic dye waste water adsorbing and discoloring can increase substantially the adsorption capacity of adsorbent prepared by stamp pulp thickening object, reduce
Adsorbent amount improves the utilization rate of adsorbent, saves processing cost.
For achieving the above object, the technical method that the present invention uses are as follows:
A kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorption capacity, which is characterized in that including following step
It is rapid:
(1) chemical substance for capableing of release hydrogen ions in right amount is added into high concentration aqueous's ink jet printing waste liquid, is stirred to react, presses down
The ionization of water soluble polymer binder ionogen processed reduces the solubility of water soluble polymer binder, destroys connection
The stability of material, until making extractable matter in waste liquid just be condensed into insoluble tiny solid particle, and increase of not flocculating;
(2) lasting stirring reduces waste liquid viscosity and prevents the tiny solid particle generated from further flocculating increase, while to waste liquid
In slowly add to react with waste liquid in right amount and generate small CO2The chemical agent of bubble, makes CO2Bubble sticks tiny solid in waste liquid
Body particle forms gas, liquid, solid three-phase contact interface between tiny solid particle, prevents the solidification of subsequent extracted object excessively closely knit;
(3) stirring of slow reduction of speed is increased with temperature, be heated to the softening point that temperature is higher than binder with ultrasonication and simultaneously
Above 5-20 DEG C, cohere tiny solid particle mutually, the bulky grain solid for forming internal package micro-bubble and water mentions
Object is taken, stirring is stopped, slow reduction of speed stirring prevents from destroying bulky grain solid extract internal void;
(4) ultrasonication and held for some time are kept, rolling up and the effects of intermolecular hydrogen bonding for binder strand is utilized
Power makes bulky grain solid extract sufficiently cohere, deform, and volume is constantly shunk, and forms blocky extract, while in insulating process
It is middle to keep hole between blocky extract internal particle uniform by strand warm-up movement using ultrasonic wave and heat effect, to keep extracting
Object structure is uniform;
(5) it is shunk sufficiently to blocky extract volume, stops ultrasonication;
(6) it goes to remove water, blocky extract surface cooling is cooling, make the quick-hardening of extract surface, it is glutinous to reduce extract surface
Degree keeps extract form;
(7) blocky extract is taken out to be fully cooled, it is then that extract is low lower than below the softening point temperature of binder in temperature
Temperature is dry;
(8) activator (with extract quality than 1: 1-5) is added after being crushed the blocky extract after drying to be uniformly mixed, in nitrogen
In 700 DEG C of one step carbonization-activation 1-3h under gas shielded, adsorbent is made after being crushed.
The utility model has the advantages that
A. high concentration aqueous's ink jet printing waste liquid extracts pollutant process through this method, and waste liquid percent of decolourization is up to 99.8% or more,
Organic pollutant recovery rate is greatly lowered waste liquor contamination load up to 95% or more, is convenient for subsequent processing;
B. inhibit the ionization of water soluble polymer binder ionogen with hydrogen ion, and react generation-with binder
COOH group is conducive to extract and forms internal hydrogen bond, sufficiently coheres conducive to extract particles, volume contraction, and deviate from inside
Most of moisture;
C. the tiny solid particle in waste liquid is sticked with micro-bubble, forms gas, liquid, solid three between tiny solid particle and connects
Interface is touched, Gu solid-contact interface can be reduced, prevents the flocculation increase of solia particle and subsequent cure excessively closely knit, is conducive to shape
At internal small mesoporous quantity, adsorption capacity is improved;
D. temperature is higher than above 5-20 DEG C of softening point, and extract internal junction Heshui can be made sufficiently to be changed into Free water and made big
Strand is sufficiently shunk, and forms the new surface of solids and free volume, and package is further mentioned by the Free water being transformed into conjunction with water
High interior porosity improves adsorption capacity, and keeps sludge curing abundant;
E. ultrasonic wave and heat effect can make micro-bubble inside blocky extract acutely vanish, and generate shock wave, and part is caused to be stirred
It is dynamic, reinforce molecular chain movement severe degree, is not only conducive to be formed mesoporous but also keep hole between blocky extract internal particle uniform, improve
Adsorption capacity;
F. prepared adsorbent is adsorbed to when the dye of positive ion solution dosage of concentration 300mg/L is 0.6g/L solution or so
Capacity is up to 460mg/g or more, and up to 97% or more, adsorbent dosage is substantially reduced solution percent of decolourization, improves adsorbent
Utilization rate.
Specific embodiment
The present invention is further illustrated below by specific embodiment.
Embodiment 1
(1) it is slowly added to 98% concentrated sulfuric acid into high concentration aqueous's ink jet printing waste liquid, is stirred to react, reduces water-soluble high score
The solubility of sub- binder, destroys the stability of binder, until it is insoluble tiny to be condensed into extractable matter just
Solia particle;
(2) persistently stirring (240r/min) reduces waste liquid viscosity and prevents the tiny solid particle generated from further flocculating increase,
The sodium bicarbonate for adding 5g/L into waste liquid simultaneously reacts with waste liquid and generates microbubble, sticks bubble tiny solid in waste liquid
Body particle forms gas, liquid, solid three-phase contact interface between tiny solid particle;
(3) slowly reduction of speed stirs (60r/min), is simultaneously heated to temperature simultaneously higher than binder with the ultrasonication of 40KHz
It more than softening point 5 DEG C, coheres tiny solid particle mutually, forms the bulky grain solid of internal package micro-bubble and water
Extract stops stirring;
(4) keep ultrasonication and keep the temperature 10min, using binder strand roll up and power makes the effects of intermolecular hydrogen bonding
Bulky grain solid extract is sufficiently cohered, is deformed, and volume is constantly shunk, and forms blocky extract, while sharp in insulating process
Keep hole between blocky extract internal particle uniform with ultrasonic wave and heat effect, to keep extract structure uniform;
(5) it is shunk sufficiently to blocky extract volume, stops ultrasonication;
(6) it goes to remove water, blocky extract surface cooling is cooling, make the quick-hardening of extract surface, it is glutinous to reduce extract surface
Degree keeps extract form;
(7) blocky extract takes out after being fully cooled, then by extract below softening point temperature of the temperature lower than binder
Low temperature drying;
(8) potassium hydroxide (mass ratio 1: 1) is added after being crushed the blocky extract after drying to be uniformly mixed, under nitrogen protection
In 700 DEG C of one step carbonization-activation 1.5h, adsorbent is made after being crushed.
Embodiment 2
(1) it is slowly added to 20% sodium bisulfate into high concentration aqueous's ink jet printing waste liquid, is stirred to react, reduces water-soluble
The solubility of property macromolecule binder, destroys the stability of binder, until it is insoluble to be condensed into extractable matter just
Property tiny solid particle, and the increase that cannot flocculate;
(2) lasting stirring reduces waste liquid viscosity and prevents the tiny solid particle generated from further flocculating increase, while to waste liquid
In add the sodium carbonate of 8g/L, reacted with waste liquid and generate micro-bubble, so that bubble is sticked the tiny solid particle in waste liquid, thin
Gas, liquid, solid three-phase contact interface is formed between small solia particle;
(3) slowly reduction of speed stirs (60r/min), is simultaneously heated to temperature simultaneously higher than binder with the ultrasonication of 40KHz
More than softening point 20 DEG C, cohere tiny solid particle mutually, the bulky grain for forming internal package micro-bubble and water is solid
Body extract stops stirring;
(4) keep ultrasonication and keep the temperature 10min, using binder strand roll up and power makes the effects of intermolecular hydrogen bonding
Bulky grain solid extract is sufficiently cohered, is deformed, and volume is constantly shunk, and forms blocky extract, while sharp in insulating process
Keep hole between blocky extract internal particle uniform with ultrasonic wave and heat effect, to keep extract structure uniform;
(5) it is shunk sufficiently to blocky extract volume, stops ultrasonication;
(6) it goes to remove water, blocky extract surface cooling is cooling, make the quick-hardening of extract surface, it is glutinous to reduce extract surface
Degree keeps extract form;
(7) blocky extract takes out after being fully cooled, then by extract below softening point temperature of the temperature lower than binder
Low temperature drying;
(8) by the blocky extract after drying it is broken after zinc chloride (mass ratio 1: 3) be added be uniformly mixed, under nitrogen protection in
Adsorbent is made after being crushed in 700 DEG C of one step carbonization-activation 3h.
Embodiment 3
(1) it is slowly added to 98% glacial acetic acid into high concentration aqueous's ink jet printing waste liquid, is stirred to react, reduces water-soluble high score
The solubility of sub- binder, destroys the stability of binder, until it is insoluble tiny to be condensed into extractable matter just
Solia particle, and increase of not flocculating;
(2) lasting stirring reduces waste liquid viscosity and prevents the tiny solid particle generated from further flocculating increase, while to waste liquid
In add the potassium carbonate of 10g/L, reacted with waste liquid and generate micro-bubble, bubble is made to stick the tiny solid particle in waste liquid,
Gas, liquid, solid three-phase contact interface is formed between tiny solid particle;
(3) slowly reduction of speed stirs (60r/min), is simultaneously heated to temperature simultaneously higher than binder with the ultrasonication of 40KHz
More than softening point 10 DEG C, cohere tiny solid particle mutually, the bulky grain for forming internal package micro-bubble and water is solid
Body extract stops stirring;
(4) keep ultrasonication and keep the temperature 20min, using binder strand roll up and power makes the effects of intermolecular hydrogen bonding
Bulky grain solid extract is sufficiently cohered, is deformed, and volume is constantly shunk, and forms blocky extract, while sharp in insulating process
Keep hole between blocky extract internal particle uniform with ultrasonic wave and heat effect, to keep extract structure uniform;
(5) it is shunk sufficiently to blocky extract volume, stops ultrasonication;
(6) it goes to remove water, blocky extract surface cooling is cooling, make the quick-hardening of extract surface, it is glutinous to reduce extract surface
Degree keeps extract form;
(7) blocky extract takes out after being fully cooled, then by extract below softening point temperature of the temperature lower than binder
Low temperature drying;
(8) potassium hydroxide (mass ratio 1: 5) is added after being crushed the blocky extract after drying to be uniformly mixed, under nitrogen protection
In 700 DEG C of one step carbonization-activation 2h, adsorbent is made after being crushed.
Comparative example 1:
Water-based ink stamp waste liquid is added, hydrogen is added according to step (8) after the sludge press filtration obtained after PAC coagulation is dehydrated, is dry
Adsorbent is made in potassium oxide (mass ratio 1: 5).
Comparative example 2:
Water-based ink stamp waste liquid is added, chlorine is added according to step (8) after the sludge press filtration obtained after PAC coagulation is dehydrated, is dry
Change zinc (mass ratio 1: 3) and adsorbent is made.
It is molten that adsorbent made from embodiment 1, embodiment 2, embodiment 3 and comparative example 1 and comparative example 2 is used for dyestuff respectively
For 24 hours, until adsorption equilibrium, filtering removes adsorbent to the adsorption bleaching of liquid, surveys its residual concentration by spectrophotometer, tests solution
Decolorizing effect, result are as shown in the table:
By decolorizing effect in table as it can be seen that dye solution for same concentrations, reach identical decolorizing effect, prepared by the present invention
Adsorbent dosage is far below comparative example, and the about 10-20% of comparative example dosage, to cationic dyes, its adsorption capacity is up to
460mg/g or more, it is main that Lang Gemiaoer absorption occurs, it is chemisorption;200mg/g is reached to its adsorption capacity of anionic dyes
More than, it is main that polymolecular layer physical absorption occurs.Comparative example is far below embodiment, the method for the present invention to two class Dye Adsorption capacity
The adsorption capacity of adsorbent prepared by stamp pulp thickening object is substantially increased, and dye of positive ion adsorption effect is improved more
Obviously.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any those skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its invent
Design is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorption capacity, which is characterized in that including following
Step:
(1) chemical substance for capableing of release hydrogen ions in right amount is added into high concentration aqueous's ink jet printing waste liquid, is stirred to react, drops
The solubility of low aqueous solubility macromolecule binder, destroys the stability of binder, until agglomerating extractable matter in waste liquid just
At insoluble tiny solid particle, and increase of not flocculating;
(2) quickly stirring reduces waste liquid viscosity and prevents the tiny solid particle generated from further flocculating increase, while to waste liquid
In add reacted in right amount with waste liquid generate micro-bubble chemical agent, so that bubble is sticked the tiny solid particle in waste liquid,
Gas, liquid, solid three-phase contact interface is formed between tiny solid particle;
(3) slowly speed change stirs, is simultaneously heated to above 5-20 DEG C of softening point that temperature is higher than binder simultaneously with ultrasonication,
It coheres tiny solid particle mutually, the bulky grain solid extract of internal package micro-bubble and water is formed, with temperature
Raising gradually reduces mixing speed until stopping stirring;
(4) ultrasonication and held for some time are kept, rolling up and the effects of intermolecular hydrogen bonding for binder strand is utilized
Power makes bulky grain solid extract sufficiently cohere, deform, and volume is constantly shunk, and forms blocky extract, while in insulating process
It is middle to keep hole between blocky extract internal particle uniform using ultrasonic wave and heat effect, to keep extract structure uniform;
(5) it is shunk sufficiently to blocky extract volume, stops ultrasonication;
(6) it goes to remove water, blocky extract surface cooling is cooling, make the quick-hardening of extract surface, it is glutinous to reduce extract surface
Degree keeps extract form;
(7) blocky extract is taken out to be fully cooled, it is then that extract is low lower than below the softening point temperature of binder in temperature
Temperature is dry;
(8) activator (with extract quality than 1: 1-5) is added after being crushed the blocky extract after drying to be uniformly mixed, in nitrogen
In 700 DEG C of one step carbonization-activation 1-3h under gas shielded, adsorbent is made after being crushed, improves Dye Adsorption capacity.
2. a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorption capacity according to claim 1,
It is characterized in that, the chemical substance in the step (1) is acid, acid salt, sour gas or releases acid substance.
3. a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorption capacity according to claim 2,
It is characterized in that, acid, acid salt, sour gas or release acid substance in water degree of ionization or its ionization to form product is reacted with water
Degree should be greater than carboxylic acid group's degree of ionization.
4. a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorption capacity according to claim 1,
It is characterized in that, the chemical agent in the step (2) is or mixtures thereof water soluble carbonate hydrogen salt or one kind of carbonate.
5. a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorption capacity according to claim 1,
It is characterized in that, slow speed change mixing speed is less than 60r/min in the step (3).
6. a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorption capacity according to claim 1,
It is characterized in that, the step (3), (4), the ultrasonic frequency in (5) are greater than 20KHz.
7. a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorption capacity according to claim 1,
It is characterized in that, the activator in the step (8) is potassium hydroxide or zinc chloride.
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