CN109173996A - A kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorbance - Google Patents

A kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorbance Download PDF

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Publication number
CN109173996A
CN109173996A CN201811097438.0A CN201811097438A CN109173996A CN 109173996 A CN109173996 A CN 109173996A CN 201811097438 A CN201811097438 A CN 201811097438A CN 109173996 A CN109173996 A CN 109173996A
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extract
waste liquid
water
adsorbent
preparation
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柳荣展
于梦楠
石宝龙
蔡豆豆
潘颖
张宾
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Qingdao University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20Solid 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
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00Aspects relating to sorbent materials
    • B01J2220/40Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48Sorbents characterised by the starting material used for their preparation
    • B01J2220/4875Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/24Treatment of water, waste water, or sewage by flotation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/308Dyes; Colorants; Fluorescent agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

The present invention discloses a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorbance, hydrionic chemical substance is generated the following steps are included: adding into stamp waste liquid, it is stirred to react, extractable matter in waste liquid is made to be condensed into insoluble tiny solid particle;Lasting stirring, the chemical agent for reacting with waste liquid and generating micro-bubble is added into waste liquid, is formed gas, liquid, solid three-phase contact interface between solia particle, is prevented from flocculating;Stop stirring, be heated to above 5-30 DEG C of softening point that temperature is higher than aqueous high molecular organic matter, bulky grain solid extract is formed by heat effect;Heat preservation forms the blocky extract of hole prosperity;It is shunk sufficiently to extract volume, water is discharged, cooled down and impregnated with saturation potassium hydroxide solution;It is dry after taking-up extract is cooling;By the extract after drying under nitrogen protection in 700 DEG C of one step charing, activation 1-4h, adsorbent of the present invention is made after being crushed, improves adsorbance.

Description

A kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorbance
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 amount.
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 Adsorbance is up to 28.5 mgg-1;Adsorbent is made using plant residue in Alejandra Alicia etc., to acid dyes and The equilibrium adsorption capacity of basic dye is respectively up to 312.5 mgg-1With 500.0 mgg-1;Ta í sL Silva etc. is washed using industry It washs sludge and adsorbent is made, to reactive dye brilliant blue R equilibrium adsorption capacity up to 36.5 mgg-1;The benefits such as Syieluing Wong Adsorbent is made with weaving sludge, the equilibrium adsorption capacity to active black and methylene blue is respectively 5 mgg-1With 3.66 mg·g-1;Adsorbent is made using leather-making mud in Geethakarthi A etc., measures it and reaches to the equilibrium adsorption capacity of REACTIVE RED 31 To 39.37mgg-1;Adsorbent is made using paper mill sludge in Li Wenhong etc., reaches to the equilibrium adsorption capacity of Reactive Red 24 15.68 mg·g-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 amount.
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 adsorbance of prepared adsorbent can be improved, adsorbent amount, save the cost, raising processing can be greatly reduced Effect overcomes adsorbent adsorption capacity during cationic dyeing waste water adsorbing and discoloring low, the big defect of adsorbent amount.
Summary of the invention
The invention proposes a kind of raising stamp pulp thickening objects to prepare the preparation method of adsorbent adsorbance, for sun from Sub- dye waste water adsorbing and discoloring can increase substantially the adsorbance of adsorbent prepared by stamp pulp thickening object, reduce absorption Agent dosage 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 adsorbance, which comprises the following steps:
(1) hydrionic chemical substance can be generated in right amount by adding into high concentration aqueous's ink jet printing waste liquid, be stirred to react, suppression The degree of ionization of the ionogen of water soluble polymer organic matter in waste liquid processed reduces the dissolution of water soluble polymer organic matter Degree, destroys the stability of binder, so that extractable matter in waste liquid is just condensed into insoluble tiny solid particle, and do not flocculate Increase;
(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 bubble stick the tiny solid in waste liquid Particle forms gas, liquid, solid three-phase contact interface between tiny solid particle, prevents tiny solid particles flocculate;
(3) slowly reduction of speed stirring is heated to above 5-30 DEG C of softening point that temperature is higher than aqueous high molecular organic matter, makes tiny solid The release of body particle combines water, coheres tiny solid particle mutually by heat effect, formed internal package micro-bubble and The bulky grain solid extract of water;
(4) held for some time, using macromolecule organic strand roll up and power makes bulky grain the effects of intermolecular hydrogen bonding Solid extract is sufficiently cohered, is deformed, and volume is constantly shunk, and most of internal Free water by being transformed into conjunction with water is discharged, leads to The blocky extract of gas and water barrier action to formation internal void prosperity is crossed, while being passed through in insulating process using heat effect Organic molecule chain warm-up movement keeps hole between blocky extract internal particle uniform;
(5) it is shunk sufficiently to blocky extract volume, water is discharged, it is with saturation potassium hydroxide solution that blocky extract surface is quick Cooling down makes the quick-hardening of extract surface, reduces extract surface viscosity, and extract is made to fully absorb potassium hydroxide;
(6) blocky extract is taken out to be fully cooled, it is after being crushed that extract is soft lower than water soluble polymer organic matter in temperature Change point temperature or less low temperature drying or natural drying, prevents extract softening from destroying pore structure;
(7) present invention is made after being crushed under nitrogen protection in 700 DEG C of one step charing, activation 1-4h in the extract after drying Adsorbent improves adsorbance.
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 advantageously forms internal hydrogen bond, sufficiently coheres conducive to extract particles, volume contraction, and deviates from internal 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 closely knit, is conducive in formation The small mesoporous quantity in portion improves adsorbance;
D. temperature is higher than above 5-30 DEG C of softening point, and macromolecular chain can be made sufficiently to shrink, deform, form the new surface of solids And free volume, interior porosity is further increased, improves adsorbance, and keep sludge curing abundant;
E. heat effect can make organic molecule chain movement inside blocky extract violent, not only be conducive to be formed mesoporous but also propose bulk It takes hole between object internal particle uniform, improves adsorbance;
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, adsorbance is up to 480mg/g or more, and adsorbent dosage is substantially reduced, and improves the benefit of adsorbent With rate.
Specific embodiment
The present invention is further illustrated below by specific embodiment.
Embodiment 1
(1) concentrated sulfuric acid that appropriate 98% is added into high concentration aqueous's ink jet printing waste liquid, is stirred to react, and inhibits water-soluble in waste liquid Property macromolecule organic ionogen degree of ionization, reduce water soluble polymer organic matter solubility, destroy connection The stability of material makes extractable matter in waste liquid just be condensed into insoluble tiny solid particle, and increase of not flocculating;
(2) lasting stirring makes the release of tiny solid particle combine water, reduces waste liquid viscosity and prevents the tiny solid particle generated Further flocculation increases, while the chemical agent sodium bicarbonate 5g/L for reacting with waste liquid and generating micro-bubble is added into waste liquid, So that bubble is sticked the tiny solid particle in waste liquid, forms gas, liquid, solid three-phase contact interface between tiny solid particle, prevent Tiny solid particles flocculate;
(3) stop stirring, be heated to temperature higher than more than the softening point of aqueous high molecular organic matter 10 DEG C, gradually by heat effect It coheres tiny solid particle mutually, forms the bulky grain solid extract of internal package micro-bubble and water;
(4) held for some time, using macromolecule organic strand roll up and power makes bulky grain the effects of intermolecular hydrogen bonding Solid extract is sufficiently cohered, is deformed, and volume is constantly shunk, until forming the blocky extract of internal void prosperity, while being protected Keep hole between blocky extract internal particle uniform by organic molecule chain warm-up movement using heat effect during temperature;
(5) it is shunk sufficiently to blocky extract volume, water is discharged, extracted bulk with the saturation potassium hydroxide solution of 5 times of volumes Object surface fast cooling is cooling, makes the quick-hardening of extract surface, reduces extract surface viscosity, and fully absorb extract Potassium hydroxide;
(6) blocky extract is taken out to be fully cooled, it is after being crushed that extract is soft lower than water soluble polymer organic matter in temperature Change 20 DEG C of temperature or less low temperature dryings of point;
(7) extract after drying is made the present invention after being crushed and inhaled under nitrogen protection in 700 DEG C of one step charing, activation 2h Attached dose, improve adsorbance.
Embodiment 2
(1) formic acid that appropriate 40% is added into high concentration aqueous's ink jet printing waste liquid, is stirred to react, and inhibits water-soluble in waste liquid The degree of ionization of the ionogen of macromolecule organic reduces the solubility of water soluble polymer organic matter, destroys binder Stability, so that extractable matter in waste liquid is just condensed into insoluble tiny solid particle, and increase of not flocculating;
(2) lasting stirring makes the release of tiny solid particle combine water, reduces waste liquid viscosity and prevents the tiny solid particle generated Further flocculation increases, while the chemical agent potassium carbonate 10g/ for reacting with waste liquid and generating micro-bubble is slowly added into waste liquid L makes bubble stick the tiny solid particle in waste liquid, and gas, liquid, solid three-phase contact interface is formed between tiny solid particle, prevents Only tiny solid particles flocculate;
(3) stop stirring, be heated to temperature higher than more than the softening point of aqueous high molecular organic matter 20 DEG C, gradually by heat effect It coheres tiny solid particle mutually, forms the bulky grain solid extract of internal package micro-bubble and water;
(4) held for some time, using macromolecule organic strand roll up and power makes bulky grain the effects of intermolecular hydrogen bonding Solid extract is sufficiently cohered, is deformed, and volume is constantly shunk, until forming the blocky extract of internal void prosperity, while being protected Keep hole between blocky extract internal particle uniform by organic molecule chain warm-up movement using heat effect during temperature;
(5) it is shunk sufficiently to blocky extract volume, water is discharged, extracted bulk with the saturation potassium hydroxide solution of 3 times of volumes Object surface fast cooling is cooling, makes the quick-hardening of extract surface, reduces extract surface viscosity, and fully absorb extract Potassium hydroxide;
(6) it takes out blocky extract to be fully cooled, spontaneously dries extract after broken;
(7) extract after drying is made the present invention after being crushed and inhaled under nitrogen protection in 700 DEG C of one step charing, activation 3h Attached dose, improve adsorbance.
Embodiment 3
(1) hydrochloric acid that appropriate 20% is added into high concentration aqueous's ink jet printing waste liquid, is stirred to react, and inhibits water-soluble in waste liquid The degree of ionization of the ionogen of macromolecule organic reduces the solubility of water soluble polymer organic matter, destroys binder Stability, so that extractable matter in waste liquid is just condensed into insoluble tiny solid particle, and increase of not flocculating;
(2) lasting stirring makes the release of tiny solid particle combine water, reduces waste liquid viscosity and prevents the tiny solid particle generated Further flocculation increases, while the chemical agent sodium carbonate 8g/L for reacting with waste liquid and generating micro-bubble is added into waste liquid, makes Bubble sticks the tiny solid particle in waste liquid, and gas, liquid, solid three-phase contact interface is formed between tiny solid particle, prevents thin Small solia particle flocculation;
(3) stop stirring, be heated to temperature higher than more than the softening point of aqueous high molecular organic matter 25 DEG C, gradually by heat effect It coheres tiny solid particle mutually, forms the bulky grain solid extract of internal package micro-bubble and water;
(4) held for some time, using macromolecule organic strand roll up and power makes bulky grain the effects of intermolecular hydrogen bonding Solid extract is sufficiently cohered, is deformed, and volume is constantly shunk, until forming the blocky extract of internal void prosperity, while being protected Keep hole between blocky extract internal particle uniform by organic molecule chain warm-up movement using heat effect during temperature;
(5) it is shunk sufficiently to blocky extract volume, water is discharged, extracted bulk with the saturation potassium hydroxide solution of 4 times of volumes Object surface fast cooling is cooling, makes the quick-hardening of extract surface, reduces extract surface viscosity, and fully absorb extract Potassium hydroxide;
(6) it takes out blocky extract to be fully cooled, spontaneously dries extract after broken;
(7) present invention is made after being crushed under nitrogen protection in 700 DEG C of one step charing, activation 2.5h in the extract after drying Adsorbent improves adsorbance.
Comparative example 1:
By water-based ink stamp waste liquid add sludge press filtration dehydrated sludge cake that PAC coagulation obtains referring to step (5), (7) at Reason: dehydrated sludge cake is impregnated with the saturation potassium hydroxide solution of 4 times of volumes, mud cake is made to fully absorb potassium hydroxide;Mud cake is taken out, from It is so dry;By the mud cake after drying under nitrogen protection in 700 DEG C of one step charing, activation 2h, adsorbent is made after being crushed.
Comparative example 2:
By water-based ink stamp waste liquid add sludge press filtration dehydrated sludge cake that PAC coagulation obtains referring to step (5), (7) at Reason: dehydrated sludge cake is impregnated with the saturation potassium hydroxide solution of 5 times of volumes, mud cake is made to fully absorb potassium hydroxide;Mud cake is taken out, from It is so dry;By the mud cake after drying under nitrogen protection in 700 DEG C of one step charing, activation 3h, 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, the about 10-20% of comparative example dosage, and adsorption capacity is up to 480mg/g or more, main Lang Gemiaoer absorption occurs, is chemisorption;200mg/g or more is reached to its adsorption capacity of anionic dyes, it is main to occur Polymolecular layer physical absorption.Comparative example is far below embodiment to two class Dye Adsorption capacity, and adsorbs to anionic dyes Effect is worst.The method of the present invention substantially increases the adsorbance of adsorbent prepared by stamp pulp thickening object, and to cation The raising of type dye adsorbance becomes 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 (6)

1. a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorbance, which is characterized in that including following step It is rapid:
(1) hydrionic chemical substance can be generated in right amount by adding into high concentration aqueous's ink jet printing waste liquid, be stirred to react, suppression The degree of ionization of the ionogen of water soluble polymer organic matter in waste liquid processed reduces the dissolution of water soluble polymer organic matter Degree, destroys the stability of binder, so that extractable matter in waste liquid is just condensed into insoluble tiny solid particle, and do not flocculate Increase;
(2) lasting stirring reduces waste liquid viscosity and prevents the tiny solid particle generated from further flocculating increase, throws into waste liquid Add to react with waste liquid in right amount and generates small CO2The chemical agent of bubble makes bubble stick the tiny solid particle in waste liquid, thin Gas, liquid, solid three-phase contact interface is formed between small solia particle, prevents tiny solid particles flocculate;
(3) it is slowly stirred and is heated above 5-30 DEG C of softening point of waste liquid to temperature higher than aqueous high molecular organic matter, is made tiny Solia particle release combines water, coheres tiny solid particle mutually by heat effect, forms internal package micro-bubble With the bulky grain solid extract of water, rise with temperature, mixing speed constantly decreases up to stopping stirring;
(4) held for some time, using macromolecule organic strand roll up and power makes bulky grain the effects of intermolecular hydrogen bonding Solid extract is sufficiently cohered, is deformed, and volume is constantly shunk, and most of internal Free water by being transformed into conjunction with water is discharged, leads to Cross air water barrier action to formed internal void prosperity blocky extract, while in insulating process using heat effect pass through have Machine object strand warm-up movement keeps hole between blocky extract internal particle uniform;
(5) it is shunk sufficiently to blocky extract volume, water is discharged, it is with saturation potassium hydroxide solution that blocky extract surface is quick Cooling down makes the quick-hardening of extract surface, reduces extract surface viscosity, and extract is made to fully absorb potassium hydroxide;
(6) blocky extract is taken out to be fully cooled, it is after being crushed that extract is soft lower than water soluble polymer organic matter in temperature Change point temperature or less low temperature drying or natural drying, prevents extract softening from destroying pore structure;
(7) present invention is made after being crushed under nitrogen protection in 700 DEG C of one step charing, activation 1-4h in the extract after drying Adsorbent improves Dye Adsorption amount.
2. a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorbance 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 releasing acid substance degree of ionization that degree of ionization or itself and water form product in water and answering Greater than carboxylic acid group's degree of ionization.
4. a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorbance 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 adsorbance according to claim 1, It is characterized in that, be slowly stirred revolving speed in the step (3) is constantly reduced by 60r/min.
6. a kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorbance according to claim 1, It is characterized in that, saturation potassium hydroxide solution volume is 3-5 times of extract volume in the step (5).
CN201811097438.0A 2018-09-20 2018-09-20 A kind of preparation method for improving stamp pulp thickening object and preparing adsorbent adsorbance Pending CN109173996A (en)

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CN104909485A (en) * 2014-03-10 2015-09-16 青岛大学 Printing ink waste liquid treatment and sludge dewatering method
CN106315985A (en) * 2016-09-30 2017-01-11 珠海杰赛科技有限公司 Organic waste liquid treatment process
CN106365349A (en) * 2016-10-18 2017-02-01 青岛大学 High-concentration black printing waste liquid contaminant extraction and utilization method

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