CN109173997A - 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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- CN109173997A CN109173997A CN201811097696.9A CN201811097696A CN109173997A CN 109173997 A CN109173997 A CN 109173997A CN 201811097696 A CN201811097696 A CN 201811097696A CN 109173997 A CN109173997 A CN 109173997A
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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, it is characterized in that, the following steps are included: (1) is added into high concentration aqueous's ink jet printing waste liquid can generate hydrionic chemical agent in right amount, agglomerate extractable matter in waste liquid；(2) lasting stirring, the chemical agent for reacting with waste liquid generate micro-bubble in right amount is slowly added into waste liquid；(3) simultaneously heated simultaneously with ultrasonication；(4) ultrasonication and held for some time are kept, the blocky extract of internal void prosperity is formed；(5) it is shunk sufficiently to blocky extract volume, goes to remove water；(6) extract is made to fully absorb potassium hydroxide with saturation potassium hydroxide solution processing；(7) it takes out after blocky extract is fully cooled and is crushed, it is dry；(8) under nitrogen protection in 500-800 DEG C of step charing, activation 1-4h adsorbent of the present invention is made, to improve adsorption capacity in the extract after drying.
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 ability.
Background technique
Water-based ink is mainly made of water-soluble resin, pigment, alcohol, amine or ammonia and other additives and water.Water-based ink
Because the characteristic of its healthy, environmentally friendly safety, is widely used in every field.Currently, a large amount of plastic package material is printing
Water-based ink is used more and more when flower, printing, needs to clean printing equipment and water-based ink storage tank when replacing color, is produced
A certain amount of high concentration aqueous's ink jet printing waste liquid is given birth to.In this kind of stamp waste liquid containing pigment, water soluble acrylic resin,
The pollutants such as alcohol, amine (ammonia), content of organics is more, and coloration is high, pollution it is extremely serious (coloration: 30,000 times or more, CODCr: 10
Ten thousand -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 ability with basic dye is 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 ability up to 36.5 mgg-1；Syieluing
Adsorbent is made using weaving sludge in Wong etc., and the equilibrium adsorption ability to active black and methylene blue is 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 ability reaches 39.37mgg-1；Adsorbent is made using paper mill sludge in Li Wenhong etc., inhales to the balance of Reactive Red 24
Attached ability is up to 15.68 mgg-1。
Adsorbent is prepared with trade waste, secondary pollution is not only prevented again and can be realized the resource utilization of solid waste,
With good environmental benefit and social benefit.But it is influenced with the absorption property of adsorbent prepared by trade waste by raw material
Larger, the adsorption effect of sludge base adsorbent is generally far below plant base adsorbent, is clearly present balance to the absorption of dyestuff and inhales
The low problem of attached ability.
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 adsorption energy
Power is 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) hydrionic chemical agent can be generated in right amount by adding into high concentration aqueous's ink jet printing waste liquid, be stirred to react, suppression
The ionization of water soluble polymer organic matter in waste liquid processed reduces the solubility of water soluble polymer organic matter, destroys binder
Stability makes extractable matter in waste liquid just be condensed into insoluble tiny solid particle, and does not flocculate；
(2) continued deceleration stirs, and reduces waste liquid viscosity and prevents the tiny solid particle generated from further flocculating increase, while to
It slowly adds to react with waste liquid in right amount in waste liquid and generates small CO2The chemical agent of bubble sticks bubble tiny in waste liquid
Solia particle forms gas, liquid, solid three-phase contact interface between tiny solid particle, prevents subsequent sludge curing excessively closely knit；
(3) it with ultrasonication and heats, the release of tiny solid particle is gradually made to combine water by heat effect and mutually coheres, shape
At the bulky grain solid extract of internal package micro-bubble and water, stop stirring；
(4) above one timing of 0-20 DEG C of heat preservation of softening point for keeping ultrasonication and being higher than aqueous high molecular organic matter to temperature
Between, using macromolecule organic strand roll up and power keeps bulky grain solid extract sufficiently glutinous the effects of intermolecular hydrogen bonding
Knot, deformation, volume are constantly shunk, until forming the blocky extract of internal void prosperity, while ultrasound are utilized in insulating process
Wave and heat effect keep hole between blocky extract internal particle uniform by organic molecule chain warm-up movement, to keep extract knot
Structure is uniform；
(5) it is shunk sufficiently to blocky extract volume, is separated by solid-liquid separation, goes to remove water；
(6) with saturation potassium hydroxide solution that blocky extract surface fast cooling is cooling, make the quick-hardening of extract surface, drops
Low extract surface viscosity, and extract is made to fully absorb potassium hydroxide, stop ultrasonication；
(7) it takes out after blocky extract is fully cooled and is crushed, extract is then lower than water soluble polymer organic matter in temperature
Softening point temperature below low temperature drying or natural drying, prevent extract softening destroy pore structure；
(8) this is made after cooling under nitrogen protection in 500-800 DEG C of step charing, activation 1-4h in the extract after drying
Invention adsorbent, to improve adsorption capacity.
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
Moisture；
C. with small CO2Bubble sticks the tiny solid particle in waste liquid, and gas, liquid, solid three-phase is formed between tiny solid particle
Contact interface prevents the flocculation increase of solia particle and subsequent cure closely knit Gu solid-contact interface can be reduced, and is conducive to be formed
Internal small mesoporous quantity, improves adsorption capacity；
D. temperature is higher than above 0-20 DEG C of softening point, and organic matter macromolecular chain in extract can be made sufficiently to shrink, pass through molecule
Chain movement forms the new surface of solids and free volume, further increases interior porosity, improves adsorption capacity, and make sludge
Solidification is 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, keep organic molecule chain movement in extract violent, is not only conducive to be formed mesoporous but also make hole between blocky extract internal particle
Uniformly, adsorption capacity is improved；
F. prepared adsorbent is to when the dye of positive ion solution dosage of concentration 300mg/L is 0.6g/L solution or so, solution
For percent of decolourization up to 97% or more, adsorption capacity is up to 480mg/g or more, and adsorbent dosage is substantially reduced, and 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) 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 bicarbonate of 10g/L, reacted with waste liquid and generate microbubble, 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) lasting stirring, be heated to temperature with the ultrasonication of 40KHz and simultaneously higher than more than the softening point of binder 5 DEG C,
It coheres tiny solid particle mutually, forms the bulky grain solid extract of internal package micro-bubble and water, stop stirring
It mixes；
(4) it keeps ultrasonication and keeps the temperature 10min, so that bulky grain solid extract sufficiently cohered, deformed, volume is constantly received
Contracting forms blocky extract, while making hole between blocky extract internal particle using ultrasonic wave and heat effect in insulating process
Gap is uniform, to keep extract structure uniform；
(5) it is shunk sufficiently to blocky extract volume, is separated by solid-liquid separation, goes to remove water；
(6) with the saturation potassium hydroxide solution of 3 times of volumes that blocky extract surface fast cooling is cooling, keep extract surface fast
Speed hardening, reduces extract surface viscosity, and extract is made to fully absorb potassium hydroxide, stops ultrasonication；
(7) it takes out after blocky extract is fully cooled and is crushed, then by extract in 50 DEG C of low temperature dryings；
(8) extract after drying is made the present invention and inhaled under nitrogen protection in 600 DEG C of one step charing, activation 2h after cooling
Attached dose, to improve adsorption capacity.
Embodiment 2
(1) it is slowly added to 50% hydrochloric acid into high concentration aqueous's ink jet printing waste liquid, is stirred to react, reduces water soluble polymer
The solubility of binder, destroys the stability of binder, until it is insoluble tiny solid to be condensed into extractable matter just
Body particle；
(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 5g/L, reacted with waste liquid and generate microbubble, so that bubble is sticked the tiny solid particle in waste liquid, tiny
Gas, liquid, solid three-phase contact interface is formed between solia particle；
(3) lasting to stir, be simultaneously heated to temperature simultaneously higher than more than the softening point of binder 15 with the ultrasonication of 40KHz
DEG C, it coheres tiny solid particle mutually, forms the bulky grain solid extract of internal package micro-bubble and water, stop
Stirring；
(4) it keeps ultrasonication and keeps the temperature 20min, so that bulky grain solid extract sufficiently cohered, deformed, volume is constantly received
Contracting forms blocky extract, while making hole between blocky extract internal particle using ultrasonic wave and heat effect in insulating process
Gap is uniform, to keep extract structure uniform；
(5) it is shunk sufficiently to blocky extract volume, is separated by solid-liquid separation, goes to remove water；
(6) with the saturation potassium hydroxide solution of 5 times of volumes that blocky extract surface fast cooling is cooling, keep extract surface fast
Speed hardening, reduces extract surface viscosity, and extract is made to fully absorb potassium hydroxide, stops ultrasonication；
(7) it takes out after blocky extract is fully cooled and is crushed, then spontaneously dry extract；
(8) extract after drying is made the present invention and inhaled under nitrogen protection in 700 DEG C of one step charing, activation 3h after cooling
Attached dose.
Embodiment 3
(1) it is slowly added to 50% formic acid into high concentration aqueous's ink jet printing waste liquid, is stirred to react, reduces water soluble polymer
The solubility of binder, destroys the stability of binder, until it is insoluble tiny solid to be condensed into extractable matter just
Body particle；
(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 8g/L, reacted with waste liquid and generate microbubble, so that bubble is sticked the tiny solid particle in waste liquid, tiny
Gas, liquid, solid three-phase contact interface is formed between solia particle；
(3) lasting to stir, be simultaneously heated to temperature simultaneously higher than more than the softening point of binder 10 with the ultrasonication of 40KHz
DEG C, it coheres tiny solid particle mutually, forms bulky grain solid extract, stop stirring；
(4) it keeps ultrasonication and keeps the temperature 30min, bulky grain solid extract is made sufficiently to cohere, deform, form blocky extract
Object, while keeping hole between blocky extract internal particle uniform using ultrasonic wave and heat effect in insulating process, to keep mentioning
Take object structure uniform；
(5) it is shunk sufficiently to blocky extract volume, is separated by solid-liquid separation, goes to remove water；
(6) with the saturation potassium hydroxide solution of 4 times of volumes that blocky extract surface fast cooling is cooling, keep extract surface fast
Speed hardening, reduces extract surface viscosity, and extract is made to fully absorb potassium hydroxide, stops ultrasonication；
(7) it takes out after blocky extract is fully cooled and is crushed, then spontaneously dry extract；
(8) extract after drying is made the present invention and inhaled under nitrogen protection in 720 DEG C of one step charing, activation 2h after cooling
Attached dose.
Comparative example 1:
By water-based ink stamp waste liquid add sludge press filtration dehydrated sludge cake that PAC coagulation obtains referring to step (6), (8) at
Reason: impregnating dehydrated sludge cake with the saturation potassium hydroxide solution of 4 times of volumes, and with ultrasonication 30min, fully absorbs mud cake
Potassium hydroxide；Mud cake is taken out, is spontaneously dried；Mud cake after drying is carbonized in 700 DEG C of one step under nitrogen protection, activation 2h,
Adsorbent is made after cooling.
Comparative example 2:
By water-based ink stamp waste liquid add sludge press filtration dehydrated sludge cake that PAC coagulation obtains referring to step (6), (8) at
Reason: impregnating dehydrated sludge cake with the saturation potassium hydroxide solution of 5 times of volumes, and with ultrasonication 30min, fully absorbs mud cake
Potassium hydroxide；Mud cake is taken out, is spontaneously dried；Mud cake after drying is carbonized in 720 DEG C of one step under nitrogen protection, activation 2h,
Adsorbent is made after cooling.
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 the dye of positive ion, its adsorption capacity is up to
480mg/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 to two class Dye Adsorption capacity be far below embodiment, and to yin from
Subtype Dye Adsorption effect is worst.The absorption that the method for the present invention substantially increases adsorbent prepared by stamp pulp thickening object is held
Amount, and the raising of cationic dyes adsorption capacity is become apparent.
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) hydrionic chemical agent can be generated in right amount by adding into high concentration aqueous's ink jet printing waste liquid, be stirred to react, suppression
The ionization of water soluble polymer organic matter in waste liquid processed reduces the solubility of water soluble polymer organic matter, destroys binder
Stability makes extractable matter in waste liquid just be condensed into insoluble tiny solid particle, and does not flocculate；
(2) continued deceleration stirs, and reduces waste liquid viscosity and prevents the tiny solid particle generated from further flocculating increase, while to
It adds to react with waste liquid in right amount in waste liquid and generates small CO2The chemical agent of bubble makes bubble stick the tiny solid in waste liquid
Particle forms gas, liquid, solid three-phase contact interface between tiny solid particle；
(3) it is simultaneously heated simultaneously with ultrasonication, by promoting solia particle molecular chain movement gradually to release tiny solid particle
It puts in conjunction with water and mutually coheres, form the bulky grain solid extract of internal package micro-bubble and water, stop stirring；
(4) above one timing of 0-20 DEG C of heat preservation of softening point for keeping ultrasonication and being higher than aqueous high molecular organic matter to temperature
Between, using macromolecule organic strand roll up and power keeps bulky grain solid extract sufficiently glutinous the effects of intermolecular hydrogen bonding
Knot, deformation, volume are constantly shunk, until forming the blocky extract of internal void prosperity, while ultrasound are utilized in insulating process
Wave and heat effect keep hole between blocky extract internal particle uniform by organic molecule chain warm-up movement, to keep extract knot
Structure is uniform；
(5) it is shunk sufficiently to blocky extract volume, is separated by solid-liquid separation, goes to remove water；
(6) with saturation potassium hydroxide solution that blocky extract surface fast cooling is cooling, make the quick-hardening of extract surface, drops
Low extract surface viscosity, and extract is made to fully absorb potassium hydroxide, stop ultrasonication；
(7) it takes out after blocky extract is fully cooled and is crushed, extract is then lower than water soluble polymer organic matter in temperature
Softening point temperature below low temperature drying or natural drying, prevent destroy pore structure；
(8) this is made after cooling under nitrogen protection in 500-800 DEG C of step charing, activation 1-4h in the extract after drying
Invention adsorbent, to improve Dye Adsorption ability.
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 agent 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, deceleration speed of agitator is no more than 200r/min in the step (2).
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, saturation potassium hydroxide solution volume is 3-5 times of extract volume in the step (6).
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| Application Number | Priority Date | Filing Date | Title |
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Citations (6)
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