CN109126701A - A kind of method of high-concentration waste water resource utilization - Google Patents
A kind of method of high-concentration waste water resource utilization Download PDFInfo
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- CN109126701A CN109126701A CN201811097290.0A CN201811097290A CN109126701A CN 109126701 A CN109126701 A CN 109126701A CN 201811097290 A CN201811097290 A CN 201811097290A CN 109126701 A CN109126701 A CN 109126701A
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
A kind of method that the present invention discloses high-concentration waste water resource utilization, comprising the following steps: cation-exchanger is added into waste water, being stirred to react makes extractable matter in waste water just be condensed into insoluble tiny solid particle；Cation-exchanger is isolated, appropriate chemical agent is slowly added into waste water and generates micro-bubble, bubble is made to stick the tiny solid particle in waste water, reduces waste water viscosity；Temperature is heated to higher than 0-30 DEG C of binder softening point, coheres tiny solid particle mutually, forms bulky grain solid；Isothermal holding certain time causes to form blocky extract；Extract saturation potassium hydroxide solution cooling down；By blocky extract of the crushing after dry under nitrogen protection in 700 DEG C of one step carbonization-activation 1-4h, adsorbent is made after being crushed.Adsorbent made from the method for the present invention is to dye of positive ion adsorption capacity up to 450mg/g or more.
Description
Technical field
The invention belongs to environmental protection technical field, in particular to a kind of method of high-concentration waste water resource utilization.
Background technique
Ink is the important materials for printing, can be divided into oil-based ink and water-based ink.Oil-based ink is with organic molten
Agent is solvent, seriously polluted, is gradually eliminated.Water-based ink is mainly by water-soluble binder (resin), pigment, alcohol, amine or ammonia
And other additives and water form.Water-based ink is widely used to every field because of its health environment-friendly, safe characteristic.
Currently, the packaging materials such as a large amount of plastics use water-based ink in stamp, printing more and more, needed when replacing color
Printing equipment and ink reservoir are cleaned, a certain amount of high concentration aqueous's ink jet printing waste water is produced.Contain in this kind of printing waste water
There are the pollutants such as pigment, water soluble acrylic resin, alcohol, amine (ammonia), content of organics is more, and coloration is high, pollutes 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 handled, and water outlet recycles other chemistry or bioremediation to qualified discharge.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 pollutants 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., contaminates acidity
The equilibrium adsorption capacities of material and basic dye are respectively up to 312.5 mgg-1With 500.0 mgg-1；Ta í sL Silva etc. is utilized
Adsorbent is made in industrial washing sludge, 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 " (application number 201610904367.5) summary of the invention is " by high concentration black water oil
Ink-printed waste liquid acidification, stirring make pollutant agglomerate to form paste sludge；The 100-500 mesh calcium of 5-10g/L is added into sludge
Sludge is heated to 50-90 DEG C of dehydration while stirring after mixing evenly by miberal powder, is made sludge curing at bulk, is taken off Chinese effluent；It takes
Sludge hot is squeezed to moisture percentage in sewage sludge dry lower than after 40% out；Sludge isolation air after drying is heated to 400-700 DEG C of guarantor
Warm 1-4h；Sludge is cooled to 50 DEG C or less and is broken into graininess, the misty wetting agent that sprinkling mass concentration is 0.1-0.2% is molten
It is uniformly mixed after liquid；Mud granule is added in cationic dyeing waste water by 2-10g/L waste water dosage, aeration stirring
10-120min, precipitating or filtering removal mud granule, decolourize discharge of wastewater；Mud granule recycles 400-700 DEG C of hot recycling, follows
Ring uses." it is used for cationic dyeing waste water decoloring adsorbent dosage as 5-10g/L waste water.As embodiment 1 " to
92% concentrated sulfuric acid is slowly added in the high concentration black water ink jet printing waste liquid that COD is 39.2 ten thousand mg/L, stirring makes pollutant
Cohesion forms sludge；Sludge, is heated to by the 200-500 mesh calcium miberal powder that 8g/L is added into sludge while stirring after mixing evenly
75 DEG C of dehydrations make sludge curing at bulk, take off Chinese effluent；Take out sludge hot squeeze to moisture content it is dry lower than after 40%；It will do
Sludge isolation air after dry is heated to 500 DEG C of heat preservation 2h；Sludge is cooled to 50 DEG C or less and is broken into graininess, sprays quality
It is uniformly mixed after the misty wetting agent solution that concentration is 0.1%；Mud granule is added to yellow cationic by 5g/L waste water dosage
In dyeing waste water, aeration stirring 100min, precipitating removal mud granule, decolourize discharge of wastewater, cationic yellow dyes dye
Color decolorization rate of wastewater reaches 99.5% or more." its adsorbent dosage is 5g/L waste water, hence it is evident that there are adsorbent adsorption capacity 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 a kind of methods of high-concentration waste water resource utilization, and it is de- to can be used for cationic dye wastewater absorption
Color can increase substantially the adsorption capacity of adsorbent prepared by waste water extract, reduce adsorbent amount, improve adsorbent
Utilization rate saves processing cost.
For achieving the above object, the technical method that the present invention uses are as follows:
A kind of method of high-concentration waste water resource utilization, which comprises the following steps:
(1) add suitable cation-exchanger into waste water, be stirred to react, using cation-exchanger release it is commutative from
Son inhibits the degree of ionization of the ionogen of water-soluble binder in waste water, reduces its solubility, destroys the stabilization of binder
Property, so that extractable matter in waste water is condensed into insoluble tiny solid particle, while solia particle can be made final through subsequent processing
Form curable blocky extract；
(2) cation-exchanger is isolated, the chemistry that can generate micro-bubble with waste water reaction in right amount is slowly added into waste water
Medicament makes bubble stick the tiny solid particle in waste water, and gas, liquid, solid three-phase contact interface is formed between tiny solid particle,
Prevent the flocculation of tiny solid particle；
(3) it is heated to above 0-30 DEG C of softening point that temperature is higher than water-soluble binder, gradually makes tiny solid particle mutually glutinous
Knot forms the bulky grain solid extract of internal package micro-bubble and water；
(4) held for some time, using binder macromolecular chain roll up and intermolecular force makes bulky grain solid extract
It sufficiently coheres, volume is constantly shunk, until forming the blocky extract of internal void prosperity, while being made in insulating process using heat
Keep hole between blocky extract internal particle uniform with by molecular chain movement；
(5) it is shunk sufficiently to blocky extract volume, water is discharged；
(6) with saturation potassium hydroxide solution that blocky extract surface fast cooling is cooling, make the quick-hardening of extract surface simultaneously
Potassium hydroxide is fully absorbed, extract surface viscosity is reduced；
(7) it takes out blocky extract to be fully cooled, extract is lower than to the softening point temperature of water-soluble binder after being crushed in temperature
Low temperature drying below degree；
(8) adsorbent is made after broken under nitrogen protection in 700 DEG C of one step charing, activation 1-4h in the extract after drying.
Cation-exchanger in the step (1) is hydrogen form cation exchanger, is needed if sodium form cation-exchanger
It is handled in advance with acid；Chemical agent in the step (2) is one kind of water soluble carbonate hydrogen salt or carbonate or it is mixed
Close object；Ultrasonic frequency in the step (3) is greater than 20KHz；Saturation potassium hydroxide solution and extract in the step (6)
Volume ratio is 3-5:1.
The utility model has the advantages that
A. for high concentration aqueous's ink jet printing waste water after this method extracts pollutant, decolorization rate of wastewater is up to 99.8% or more, has
For machine pollutant recovery rate up to 95% or more, ammonia nitrogen removal frank is greatly lowered contaminated wastewater load 85% or more, is convenient for subsequent place
Reason；
B. the exchangeable ion H of cation-exchanger release is utilized+Inhibit the electricity of water-soluble binder ionogen in waste water
From, and generation-COOH group is reacted with binder, and internal hydrogen bond is advantageously formed, is sufficiently cohered conducive to extract particles, body
Product is shunk, and deviates from internal moisture, and cation-exchanger has suction-operated to ammonia nitrogen, can remove useless water part simultaneously
Ammonia nitrogen；
C. the tiny solid particle in waste water is sticked with micro-bubble, forms gas, liquid, solid three between tiny solid particle and connects
Interface is touched, Gu solid-contact interface energy can be reduced, prevents the flocculation increase of solia particle and subsequent cure closely knit, is conducive to be formed
Internal small mesoporous quantity, improves adsorption capacity；
D. temperature is higher than above 0-30 DEG C of binder softening point, and binder macromolecular chain can be made sufficiently to shrink, form new consolidate
Body surface face and free volume further increase interior porosity, improve adsorption capacity, and keep sludge curing abundant；
E. heat effect can make micro-bubble inside blocky extract vanish, and advantageously form mesoporous and make inside blocky extract
Inter-granular porosity is uniform, improves adsorption capacity, while being also beneficial to the abjection of extract internal moisture；
F. for prepared adsorbent to when the dye of positive ion solution dosage of concentration 300mg/L is 0.6g/L, adsorption capacity is high
Up to 450mg/g or more, up to 95% or more, adsorbent dosage is substantially reduced solution percent of decolourization, improves the utilization of adsorbent
Rate.
Specific embodiment
The present invention is further illustrated below by specific embodiment.
Embodiment 1
(1) highly acid hydrogen type cation exchange resin is added into high concentration aqueous's ink jet printing waste water, is stirred to react, reduces water
The solubility of soluble macromolecular binder, destroys the stability of binder, until being condensed into extractable matter in waste water just not
Dissolubility tiny solid particle；
(2) cation exchange resin is isolated, appropriate saleratus powder is slowly added into waste water, is generated with waste water reaction micro-
Bubble makes bubble stick the tiny solid particle in waste water, and gas, liquid, solid three-phase contact interface is formed between tiny solid particle；
(3) temperature is heated to higher than more than the softening point of binder 25 DEG C, coheres tiny solid particle mutually, in formation
The bulky grain solid extract of portion package micro-bubble and water；
(4) keep the temperature 25min, using binder strand roll up and power makes bulky grain solid extract the effects of intermolecular hydrogen bonding
It sufficiently coheres, deform, volume is constantly shunk, and forms blocky extract, while propose bulk using heat effect in insulating process
Take hole between object internal particle uniform；
(5) it is shunk sufficiently to blocky extract volume, water is discharged；
(6) blocky extract is placed in saturation potassium hydroxide solution (potassium hydroxide solution is 5:1 with extract volume ratio) makes
Its surface cooling is cooling, makes the quick-hardening of extract surface and fully absorbs potassium hydroxide, reduces extract surface viscosity；
(7) blocky extract takes out after being fully cooled, and extract is lower than to the softening point of water-soluble binder after being crushed in temperature
Low temperature drying below temperature；
(8) absorption is made after being crushed under nitrogen protection in 700 DEG C of one step carbonization-activation 3h in the blocky extract after drying
Agent.
Embodiment 2
(1) faintly acid hydrogen type cation exchange resin is added into high concentration aqueous's ink jet printing waste water, is stirred to react, reduces water
The solubility of soluble macromolecular binder, destroys the stability of binder, until being condensed into extractable matter in waste water just not
Dissolubility tiny solid particle；
(2) cation exchange resin is isolated, appropriate sodium bicarbonate powder is slowly added into waste water, is generated with waste water reaction micro-
Bubble makes bubble stick the tiny solid particle in waste water, and gas, liquid, solid three-phase contact interface is formed between tiny solid particle；
(3) temperature is heated to higher than more than the softening point of binder 20 DEG C, coheres tiny solid particle mutually, in formation
The bulky grain solid extract of portion package micro-bubble and water；
(4) keep the temperature 30min, using binder strand roll up and power makes bulky grain solid extract the effects of intermolecular hydrogen bonding
It sufficiently coheres, deform, volume is constantly shunk, and forms blocky extract, while propose bulk using heat effect in insulating process
Take hole between object internal particle uniform；
(5) it is shunk sufficiently to blocky extract volume, water is discharged；
(6) blocky extract is placed in saturation potassium hydroxide solution (potassium hydroxide solution is 4:1 with extract volume ratio) makes
Its surface cooling is cooling, makes the quick-hardening of extract surface and fully absorbs potassium hydroxide, reduces extract surface viscosity；
(7) blocky extract takes out after being fully cooled, and extract is lower than to the softening point of water-soluble binder after being crushed in temperature
Low temperature drying below temperature；
(8) absorption is made after being crushed under nitrogen protection in 700 DEG C of one step carbonization-activation 2h in the blocky extract after drying
Agent.
Embodiment 3
(1) highly acid hydrogen type cation exchange resin is added into high concentration aqueous's ink jet printing waste water, is stirred to react, reduces water
The solubility of soluble macromolecular binder, destroys the stability of binder, until being condensed into extractable matter in waste water just not
Dissolubility tiny solid particle；
(2) cation exchange resin is isolated, proper amount of sodium carbonate powder is slowly added into waste water, generates micro- gas with waste water reaction
Bubble, makes bubble stick the tiny solid particle in waste water, and gas, liquid, solid three-phase contact interface is formed between tiny solid particle；
(3) temperature is heated to higher than more than the softening point of binder 15 DEG C, coheres tiny solid particle mutually, in formation
The bulky grain solid extract of portion package micro-bubble and water；
(4) keep the temperature 30min, using binder strand roll up and power makes bulky grain solid extract the effects of intermolecular hydrogen bonding
It sufficiently coheres, deform, volume is constantly shunk, and forms blocky extract, while propose bulk using heat effect in insulating process
Take hole between object internal particle uniform；
(5) it is shunk sufficiently to blocky extract volume, water is discharged；
(6) blocky extract is placed in saturation potassium hydroxide solution (potassium hydroxide solution is 3:1 with extract volume ratio) makes
Its surface cooling is cooling, makes the quick-hardening of extract surface and fully absorbs potassium hydroxide, reduces extract surface viscosity；
(7) blocky extract takes out after being fully cooled, and extract is lower than to the softening point of water-soluble binder after being crushed in temperature
Low temperature drying below temperature；
(8) absorption is made after being crushed under nitrogen protection in 700 DEG C of one step carbonization-activation 1.5h in the blocky extract after drying
Agent.
Comparative example 1:
Water-based ink printing waste water is added into the sludge press filtration dehydration that PAC coagulation obtains, it is after dry that blocky extract is broken simultaneously
Potassium hydroxide (mass ratio 1: 4) is added to be uniformly mixed, under nitrogen protection in 700 DEG C of one step carbonization-activation 3.0h, is made after broken
Obtain adsorbent.
Comparative example 2:
Water-based ink printing waste water is added after the sludge press filtration that PAC coagulation obtains is dehydrated, is dry that blocky extract is broken simultaneously
Potassium hydroxide (mass ratio 1: 5) is added to be uniformly mixed, under nitrogen protection in 700 DEG C of one 4 h of step carbonization-activation, is made after being crushed
Adsorbent.
Adsorbent made from embodiment 1, embodiment 2, embodiment 3 and comparative example 1 and comparative example 2 is used for cation respectively
For 24 hours, until adsorption equilibrium, filtering removes adsorbent to the adsorption bleaching of dye solution, surveys its residual concentration by spectrophotometer, surveys
Solution decolorizing effect is tried, result is 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 12-15% of comparative example dosage, adsorption capacity is up to 450mg/g or more.This
Inventive method substantially increases the adsorption capacity of adsorbent prepared by stamp pulp thickening object.
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 (4)
1. a kind of method of high-concentration waste water resource utilization, which comprises the following steps:
(1) add suitable cation-exchanger into waste water, be stirred to react, using cation-exchanger release it is commutative from
Son inhibits the degree of ionization of the ionogen of water-soluble binder in waste water, reduces its solubility, destroys the stabilization of binder
Property, so that extractable matter in waste water is condensed into insoluble tiny solid particle, while solia particle can be made final through subsequent processing
Form curable blocky extract；
(2) cation-exchanger is isolated, the chemistry that can generate micro-bubble with waste water reaction in right amount is slowly added into waste water
Medicament makes bubble stick the tiny solid particle in waste water, and gas, liquid, solid three-phase contact interface is formed between tiny solid particle,
Prevent the flocculation of tiny solid particle；
(3) it is heated to above 0-30 DEG C of softening point that temperature is higher than water-soluble binder, gradually makes tiny solid particle mutually glutinous
Knot forms the bulky grain solid extract of internal package micro-bubble and water；
(4) held for some time, using binder macromolecular chain roll up and intermolecular force makes bulky grain solid extract
It sufficiently coheres, volume is constantly shunk, until forming the blocky extract of internal void prosperity, while being made in insulating process using heat
Keep hole between blocky extract internal particle uniform with by molecular chain movement；
(5) it is shunk sufficiently to blocky extract volume, water is discharged；
(6) with saturation potassium hydroxide solution that blocky extract surface fast cooling is cooling, make the quick-hardening of extract surface simultaneously
Potassium hydroxide is fully absorbed, extract surface viscosity is reduced；
(7) it takes out blocky extract to be fully cooled, extract is lower than to the softening point temperature of water-soluble binder after being crushed in temperature
Low temperature drying below degree；
(8) adsorbent is made after broken under nitrogen protection in 700 DEG C of one step charing, activation 1-4h in the extract after drying.
2. a kind of method of high-concentration waste water resource utilization according to claim 1, which is characterized in that the step
(1) cation exchange material in is hydrogen form cation exchanger, need to be in advance at acid if sodium form cation-exchanger
Reason.
3. a kind of method of high-concentration waste water resource utilization according to claim 1, which is characterized in that the step
(2) chemical agent in is or mixtures thereof water soluble carbonate hydrogen salt or one kind of carbonate.
4. a kind of method of high-concentration waste water resource utilization according to claim 1, which is characterized in that the step
(6) saturation potassium hydroxide solution and extract volume ratio are 3-5:1 in.
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Cited By (6)
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|---|---|---|---|---|
| CN109603755A (en) * | 2019-01-16 | 2019-04-12 | 青岛大学 | A method of improving latex waste water extract resource utilization |
| CN109603754A (en) * | 2019-01-16 | 2019-04-12 | 青岛大学 | A method of latex waste water latex particle extract is improved to Dye Adsorption ability |
| CN109603753A (en) * | 2019-01-16 | 2019-04-12 | 青岛大学 | A method of improving latex waste water extract adsorption capacity |
| CN112337511A (en) * | 2020-11-06 | 2021-02-09 | 深圳信息职业技术学院 | Cation exchanger and method for removing heavy metal ions in wastewater |
| CN112499879A (en) * | 2020-12-17 | 2021-03-16 | 张倩茹 | Oily wastewater treatment process |
| CN115815308A (en) * | 2022-11-28 | 2023-03-21 | 安徽皖苏电力运检科技有限公司 | Industrial solid waste sorting treatment method |
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