CN108751322A - A kind of processing method of papermaking wastewater - Google Patents
A kind of processing method of papermaking wastewater Download PDFInfo
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- CN108751322A CN108751322A CN201810526536.5A CN201810526536A CN108751322A CN 108751322 A CN108751322 A CN 108751322A CN 201810526536 A CN201810526536 A CN 201810526536A CN 108751322 A CN108751322 A CN 108751322A
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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
- 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
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
-
- 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
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a kind of processing methods of papermaking wastewater, are included in the step of being handled using inorganic agent in processing procedure, wherein the addition of inorganic agent is the 1-2.5% of sewage weight, and the inorganic agent is prepared using following raw material by weight：25-30 parts of diatom ooze, 3-5 parts of polyacrylamide, 8-10 parts of wingceltis hide fiber, 1.8-2.5 parts of diallyl dimethyl ammoniumchloride, 16-22 parts of flyash；Environment-friendly type inorganic agent prepared by the present invention is safe, new pollutant will not be introduced in processing procedure, new pollution will not be generated to water body, the primary raw material ingredient in the application is diatomite, flyash etc., and cost of material is relatively low, and flyash itself is a kind of rubbish, processing of its new function for sewage is assigned after treatment, greatly reduces the cost of inorganic agent, simultaneously, waste is recycled, economic benefit is improved.
Description
Technical field
The invention belongs to field of environment protection, are related to the process field of sewage, and in particular to a kind of processing method of papermaking wastewater.
Background technology
Sewage disposal is that the water quality requirement for draining a certain water body to make sewage reach or reusing purifies it
Process.It is each that sewage disposal is widely used in building, agricultural, traffic, the energy, petrochemical industry, environmental protection, urban landscape, medical treatment, food and drink etc.
The daily life of common people is also come into a field more and more.
Present sewage water treatment method is broadly divided into chemical decomposition method, microorganism decomposition method and several classes of physisorphtion, for
Different sewage can also select the combination of these types of method to handle sewage, for the sewage containing heavy metal ion,
It is mainly removed using complexometry, the cost of complexing agent is often higher, and the range that the effect removed is more general, applicable
Also more single.
China's paper-making industry mostly uses culm, wood pulp etc. and is used as paper making raw material.Pulping and paper-making production generally have slurrying, pulp washing,
The process composition of bleaching, papermaking.Paper industry slurrying has soda pulping process, chemical-mechanical pulping and mechanical feedback.Its waste water
, raw material difference different according to pulping process, pulping yield is different, papermaking kind is different and whether there is or not chemical recovery, pollutants
Generation just have very big difference with discharge, but be substantially all containing a large amount of suspended matter and BOD, COD and part noxious material, lead to
Often still handled in such a way that materialization and bioanalysis are combined.The adsorbent of currently used sewage disposal is activated carbon,
It mainly absorbs suspended matter using physical absorption, but dispersed poor in water, whole adsorption effect often without
Method reaches expected.
Invention content
The present invention provides a kind of processing of papermaking wastewater to solve the defect of existing sewage disposal process inorganic agent
Method carries out physics and chemisorption to sewage using the inorganic agent by compounding, greatly promotes processing of the inorganic agent to sewage
Effect can all have good treatment effect to sanitary sewage, paper waste and dyeing waste water.
The invention is realized by the following technical scheme：
A kind of processing method of papermaking wastewater, is included in the step of being handled using inorganic agent in processing procedure, wherein processing
The addition of agent is the 1-2.5% of sewage weight, and the inorganic agent is prepared using following raw material by weight：Diatom ooze 25-30
Part, 3-5 parts of polyacrylamide, 8-10 parts of wingceltis hide fiber, 1.8-2.5 parts of diallyl dimethyl ammoniumchloride, flyash 16-
22 parts；
Preparation method includes the following steps：（1）, by diatom ooze, flyash be added blender stir 30-40min, in 630-645
Then wingceltis hide fiber is added in activation process 13-15min at DEG C, continue to stir 25-30min, above-mentioned raw materials is made to be sufficiently mixed；
（2）, by step（1）Polyacrylamide and diallyl dimethyl ammoniumchloride are added in the raw material handled well, using turning
Drum granulator, obtains inorganic agent；
The diatom ooze is modified processing using following methods：
（1）, diatomite cleaned up using clear water, the isothermal holding 45-50min at 450-500 DEG C, at this temperature, to
Dextrin, polyvinyl alcohol, sodium citrate, water are sprayed above diatomite by weight 3.5:6:1.2:Mixture made of 10, then
It is naturally cooling to room temperature, mixture is 1 with diatomaceous weight ratio：80-90；
（2）, by step（1）The phosphoric acid solution immersion treatment 3-5min for the diatomite use quality score 20% handled well, impregnated
In journey frequency of use be 25kHz ultrasonic echography handle, then by diatomite at 55-60 DEG C drying and processing 35-40min；
（3）, by step（2）The diatomite handled well is with chitosan by weight 13-15：1 ratio mixing, uses height after mixing
Fast mixing machine is handled, and diatomite is made to be sufficiently mixed uniformly with chitosan；
（4）, by step（3）The diatomite handled well pressurize under 2Mpa pressure handles 2h, obtains modification infusorial earth.
Before being handled using inorganic agent, sewage is first filtered off into floating material and suspended matter in sewage by grid, it then will be dirty
Water is put into sedimentation basin and stands 3-5h, and precipitation is detached with sewage above, inorganic agent is then reused and handles sewage.
For inorganic agent in use, inorganic agent is added in sewage, then stirring makes inorganic agent be dispersed in sewage, stands 1-
2h is again stirring for, and inorganic agent is made to disperse in sewage again, then stands 1-2h again, filtering.
The flyash passes through modification, and the specific method is as follows：（1）, flyash be broken into grain size be not more than 10mm
Particle, by fly ash grain use quality score be 20% phosphoric acid, mass fraction 60% sulfuric acid by volume 2:3 preparations
Acid soak handles 3-5min；
（2）, by step（1）The flyash handled well makes 2-3 times wash with distilled water, is then dried at 50-60 DEG C, then will
In the sulfuric acid solution that flyash is put into 10-15 times of its weight, mass fraction is 3%, using blender with the speed of 50-60r/min
Stirring, and the ultrasonication that frequency of use is 20kHz, it is that 1.5% aluminium hydroxide is molten that mass fraction is added constantly into mixture
Liquid, the addition volume of aluminum hydroxide solution are the 1/3 of sulfuric acid solution, and being continuing with blender after the completion of being added stirs and surpassed
Sonication 15-20min；
（3）, by step（2）The flyash handled well is cleaned, and surface impurity is removed, and is then placed in the phosphorus that mass fraction is 5%
In acid dihydride sodium solution, the ultrasonic oscillation that frequency of use is 25kHz handles 30-40min, takes out, drying, obtains modified fine coal
Ash.
The wingceltis hide fiber is modified processing using following steps：（1）, annual early June late May-, selection is green
Wingceltis peeling, by the lignin sulfonic acid sodium solution immersion treatment 120-150min of wingceltis use quality score 1.2%；
（2）, by step（1）The wingceltis handled well carries out roller process, when first time roll-in, the roller of roll squeezer using roll squeezer
Spacing is the 2/3 of wingceltis maximum gauge, and the roller spacing of roll squeezer is reduced 2mm by roller process every time later, until roll squeezer
Roller stop roller process when being smaller than 1.2mm, after each roll-in, the wingceltis after roll-in is used into sodium carbonate-
Sodium bicarbonate buffer system, dodecyl sodium sulfate, water are by weight 5：1：200 solution prepared impregnate 8-10min, then again
It is further processed；
（3）, by step（2）The wingceltis handled well uses compound soak immersion treatment 60-75min at 42-50 DEG C, then
It is stirred using blender, fiber is made to disperse in compound soak, then removed the residue of offscum and floating, then will remain
Remaining fiber is combed, and the compound soak is made using following raw material by weight：1.2 parts of trihydroxy ethylamine oleate soap,
30 parts of 15 parts of ethanol solution, the water of 1.2 parts of dodecyl sodium sulfate, 0.4 part of triethanolamine, volume fraction 78%；
（4）, by step（3）The sodium citrate solution that the fiber handled well is 2% with mass fraction is by weight 1:2 ratio is mixed
It closes, fiber is then broken into the staple fiber that length is 2-15mm using crusher, obtains modified wingceltis hide fiber.
The pH9.2-10.8 of the sodium carbonate-bicarbonate buffer system.
The preparation method of the inorganic agent, includes the following steps：（1）, by diatom ooze, flyash be added blender stir 30-
Then wingceltis hide fiber is added in 40min, the activation process 13-15min at 630-645 DEG C, continue to stir 25-30min, make
Raw material is stated to be sufficiently mixed；
（2）, by step（1）Polyacrylamide and diallyl dimethyl ammoniumchloride are added in the raw material handled well, using turning
Drum granulator, obtains inorganic agent.
Beneficial effects of the present invention：The inorganic agent for Sewage in the application uses diatom ooze, flyash
It is prepared for primary raw material, relative to directly being adsorbed using activated carbon, the cost of processing significantly reduces, due to flyash
This is as dead meal, it is difficult to it handles, cost is extremely low, by being modified to flyash in the application, promotes its absorption property, and
And after modification, flyash can be made to keep good form and performance, make it that can be protected under a variety of use environments
Hold good performance;Wingceltis hide fiber is added in the application in the feed, on the one hand utilizes the good flexibility of plant fiber,
Hinge between each raw material as connection promotes the stability of inorganic agent form, on the other hand, at the application method modification
The wingceltis of reason has certain complex performance, for the microparticle in sewage and the precipitation that generates after being complexed with other compositions
Object has the function of certain cohesion, gathers, and promotes the effect to pollutant removal in sewage, meanwhile, wingceltis hide fiber is passing through
After crossing the modification of the present invention, there can be good dispersion effect in sewage, have obviously for the treatment effect of sewage
Promotion.
Environment-friendly type inorganic agent prepared by the present invention is safe, and new pollutant will not be introduced in processing procedure, will not
New pollution is generated to water body, the primary raw material ingredient in the application is diatomite, flyash etc., and cost of material is relatively low, and
Flyash itself is a kind of rubbish, assigns processing of its new function for sewage after treatment, greatly reduces inorganic agent
Cost, meanwhile, waste is recycled, economic benefit is improved.
Inorganic agent used herein not only has good physisorption, but also has good chemisorption and network
Cooperation is used, and not only has good Adsorption effect to the suspended matter in sewage, for the heavy metal ion etc. in sewage
Ingredient, diatomite modified, flyash also have the function of good Absorptive complex wave in the application, and in processing procedure
In, due to aluminum ions presence in the processing raw material that is used in modifying process, also there is good suction for the phosphate in water
Attached removal effect, has good phosphor-removing effect.Inorganic agent in the application is made by Multiple components compounding, and inorganic agent is steady
Qualitative height, a variety of ingredients with suction-operated are by different modified, and making the pore structure of adsorbent, there are certain areas
Not, can all have good adsorption effect, the field for keeping its applicable wider the pollutant of different-grain diameter in sewage so that this
Inorganic agent in application all has good treatment effect for a variety of sewage.
Specific implementation mode
Embodiment 1
A kind of processing method of papermaking wastewater, is included in the step of being handled using inorganic agent in processing procedure, wherein processing
The addition of agent is the 1.5% of sewage weight, and the inorganic agent is prepared using following raw material by weight：28 parts of diatom ooze, poly- third
4.2 parts of acrylamide, 8.5 parts of wingceltis hide fiber, 2.2 parts of diallyl dimethyl ammoniumchloride, 19 parts of flyash.
The diatom ooze is modified processing using following methods：
（1）, diatomite cleaned up using clear water, the isothermal holding 45-50min at 480 DEG C, at this temperature, to diatom
The native dextrin of sprinkling above, polyvinyl alcohol, sodium citrate, water are by weight 3.5:6:1.2:Mixture made of 10, it is then natural
It is cooled to room temperature, mixture is 1 with diatomaceous weight ratio：85；
（2）, by step（1）The phosphoric acid solution immersion treatment 4min for the diatomite use quality score 20% handled well, soaking process
Middle frequency of use be 25kHz ultrasonic echography handle, then by diatomite at 58-60 DEG C drying and processing 40min；
（3）, by step（2）The diatomite handled well is with chitosan by weight 14.5：1 ratio mixing, uses height after mixing
Fast mixing machine is handled, and diatomite is made to be sufficiently mixed uniformly with chitosan；
（4）, by step（3）The diatomite handled well pressurize under 2Mpa pressure handles 2h, obtains modification infusorial earth.
Embodiment 2
A kind of processing method of papermaking wastewater, is included in the step of being handled using inorganic agent in processing procedure, wherein processing
The addition of agent is the 1.5% of sewage weight, and the inorganic agent is prepared using following raw material by weight：28 parts of diatom ooze, poly- third
4.2 parts of acrylamide, 8.5 parts of wingceltis hide fiber, 2.2 parts of diallyl dimethyl ammoniumchloride, 19 parts of flyash.
The diatom ooze is modified processing using following methods：
（1）, diatomite cleaned up using clear water, the isothermal holding 45-50min at 480 DEG C, at this temperature, to diatom
The native dextrin of sprinkling above, polyvinyl alcohol, sodium citrate, water are by weight 3.5:6:1.2:Mixture made of 10, it is then natural
It is cooled to room temperature, mixture is 1 with diatomaceous weight ratio：85；
（2）, by step（1）The phosphoric acid solution immersion treatment 4min for the diatomite use quality score 20% handled well, soaking process
Middle frequency of use be 25kHz ultrasonic echography handle, then by diatomite at 58-60 DEG C drying and processing 40min；
（3）, by step（2）The diatomite handled well is with chitosan by weight 14.5：1 ratio mixing, uses height after mixing
Fast mixing machine is handled, and diatomite is made to be sufficiently mixed uniformly with chitosan；
（4）, by step（3）The diatomite handled well pressurize under 2Mpa pressure handles 2h, obtains modification infusorial earth.
The flyash passes through modification, and the specific method is as follows：（1）, flyash be broken into grain size be not more than 10mm
Particle, by fly ash grain use quality score be 20% phosphoric acid, mass fraction 60% sulfuric acid by volume 2:3 preparations
Acid soak handles 12min；
（2）, by step（1）The flyash handled well makes 3 times wash with distilled water, is then dried at 57 DEG C, then by fine coal
In the sulfuric acid solution that ash is put into 12 times of its weight, mass fraction is 3%, stirred with the speed of 58r/min using blender, and make
The ultrasonication for being 20kHz with frequency, it is 1.5% aluminum hydroxide solution, hydroxide that mass fraction is added constantly into mixture
The addition volume of aluminum solutions is the 1/3 of sulfuric acid solution, and being continuing with blender after the completion of being added stirs and be ultrasonically treated
18min；
（3）, by step（2）The flyash handled well is cleaned, and surface impurity is removed, and is then placed in the phosphorus that mass fraction is 5%
In acid dihydride sodium solution, the ultrasonic oscillation that frequency of use is 25kHz handles 35min, takes out, and drying obtains modified coal ash.
The wingceltis hide fiber is modified processing using following steps：（1）, annual early June late May-, selection is green
Wingceltis peeling, by the lignin sulfonic acid sodium solution immersion treatment 135min of wingceltis use quality score 1.2%；
（2）, by step（1）The wingceltis handled well carries out roller process, when first time roll-in, the roller of roll squeezer using roll squeezer
Spacing is the 2/3 of wingceltis maximum gauge, and the roller spacing of roll squeezer is reduced 2mm by roller process every time later, until roll squeezer
Roller stop roller process when being smaller than 1.2mm, after each roll-in, the wingceltis after roll-in is used into sodium carbonate-
Sodium bicarbonate buffer system, dodecyl sodium sulfate, water are by weight 5：1：200 solution prepared impregnate 8-10min, then again
It is further processed；
（3）, by step（2）The wingceltis handled well uses compound soak immersion treatment 70min at 48 DEG C, then using stirring
The machine of mixing is stirred, and fiber is made to disperse in compound soak, the residue of offscum and floating is then removed, then by remaining fibre
Dimension is combed, and the compound soak is made using following raw material by weight：1.2 parts of trihydroxy ethylamine oleate soap, dodecane
30 parts of 15 parts of ethanol solution, the water of 1.2 parts of base sodium sulfonate, 0.4 part of triethanolamine, volume fraction 78%；
（4）, by step（3）The sodium citrate solution that the fiber handled well is 2% with mass fraction is by weight 1:2 ratio is mixed
It closes, fiber is then broken into the staple fiber that length is 2-15mm using crusher, obtains modified wingceltis hide fiber.
The pH9.2-10.8 of the sodium carbonate-bicarbonate buffer system.
Embodiment 3
A kind of processing method of papermaking wastewater, is included in the step of being handled using inorganic agent in processing procedure, wherein processing
The addition of agent is the 1.5% of sewage weight, and inorganic agent is prepared using following raw material by weight：30 parts of diatom ooze, polyacrylamide
4.2 parts of amine, 8.5 parts of wingceltis hide fiber, 2.3 parts of diallyl dimethyl ammoniumchloride, 20 parts of flyash.
The preparation method of raw material and product is the same as embodiment 2 in the embodiment.
Embodiment 4
A kind of processing method of papermaking wastewater, is included in the step of being handled using inorganic agent in processing procedure, wherein processing
The addition of agent is the 1.5% of sewage weight, and inorganic agent is prepared using following raw material by weight：26 parts of diatom ooze, polyacrylamide
4.2 parts of amine, 8.9 parts of wingceltis hide fiber, 2.3 parts of diallyl dimethyl ammoniumchloride, 22 parts of flyash.
The preparation method of raw material and product is the same as embodiment 2 in the embodiment.
Comparative example 1
A kind of processing method of papermaking wastewater, is included in the step of being handled using inorganic agent in processing procedure, wherein processing
The addition of agent is the 1.5% of sewage weight, which is prepared using following raw material by weight：28 parts of diatom ooze, poly- third
4.2 parts of acrylamide, 8.5 parts of wingceltis hide fiber, 2.2 parts of diallyl dimethyl ammoniumchloride, 19 parts of flyash.But in raw material
Diatom ooze without using the present invention method be modified processing, other compositions processing method such as embodiment 1.
Comparative example 2
A kind of processing method of papermaking wastewater, is included in the step of being handled using inorganic agent in processing procedure, wherein processing
The addition of agent is the 1.5% of sewage weight, which is prepared using following raw material by weight：28 parts of diatom ooze, poly- third
4.2 parts of acrylamide, 2.2 parts of diallyl dimethyl ammoniumchloride, 19 parts of flyash.The application is relative to the side in embodiment 1
Case, does not use wingceltis hide fiber, and the ratio and processing mode of other compositions are consistent with embodiment 2.
Comparative example 3
A kind of processing method of papermaking wastewater, is included in the step of being handled using inorganic agent in processing procedure, wherein processing
The addition of agent is the 1.5% of sewage weight, which is prepared using following raw material by weight：28 parts of diatom ooze, poly- third
4.2 parts of acrylamide, 8.5 parts of wingceltis hide fiber, 2.2 parts of diallyl dimethyl ammoniumchloride.It is added without in the embodiment raw material
Flyash, other compositions processing mode such as embodiment 2.
Comparative example 4
A kind of processing method of papermaking wastewater, is included in the step of being handled using inorganic agent in processing procedure, wherein processing
The addition of agent is the 1.5% of sewage weight, which is prepared using following raw material by weight：28 parts of diatom ooze, poly- third
4.2 parts of acrylamide, 8.5 parts of wingceltis hide fiber, 2.2 parts of diallyl dimethyl ammoniumchloride, 19 parts of flyash, wherein diatom ooze
It is handled without using the method for embodiment 2, other treatment process are consistent with embodiment 2.
The applicant carries out the treatment effect in each embodiment by the way that comparative example is arranged to verify the effect of the application
Verification, verifies the treatment effect of the inorganic agent of different ratio ingredient and preparation method, is carried out using same batch sewage
Processing, every group of inorganic agent handle 500ml sewage, and the inorganic agent added in every group is 7.5g, when processing, make inorganic agent in sewage
It is uniformly dispersed, major pollutants content in sewage before and after statistical disposition, specific data such as table 1.
Table 1.
Paper waste in table 1 is that sulfate reed reed starches bleaching effluent.As shown in Table 1, when located using matching for the application
Inorganic agent prepared by reason method has more significant effect, waste water after treatment for the suspended matter and BOD5 of papermaking wastewater
Meet discharging standards, still, after changing the proportioning of inorganic agent, the significant effect of processing reduces, this is mainly due to
In to sewage disposal process, the ingredient of the inorganic agent in the application is mutually promoted, by different modified ingredients
Compounding, can adsorb the pollutant of a variety of grain sizes, and the effect of absorption is more preferable, and pass through at different modifications
Reason, enables different raw materials to adsorb the pollutant of opposed polarity, the treatment effect of the inorganic agent after compounding is more preferable.
Claims (6)
1. a kind of processing method of papermaking wastewater, which is characterized in that be included in and handled using inorganic agent in processing procedure
Step, wherein the addition of inorganic agent is the 1-2.5% of sewage weight, and the inorganic agent uses following raw material system by weight
It is standby：25-30 parts of diatom ooze, 3-5 parts of polyacrylamide, 8-10 parts of wingceltis hide fiber, diallyl dimethyl ammoniumchloride 1.8-
2.5 parts, 16-22 parts of flyash；
Preparation method includes the following steps：（1）, by diatom ooze, flyash be added blender stir 30-40min, in 630-
Then wingceltis hide fiber is added in activation process 13-15min at 645 DEG C, continue to stir 25-30min, keeps above-mentioned raw materials fully mixed
It closes；
（2）, by step（1）Polyacrylamide and diallyl dimethyl ammoniumchloride are added in the raw material handled well, using turning
Drum granulator, obtains inorganic agent；
The diatom ooze is modified processing using following methods：
（1）, diatomite cleaned up using clear water, the isothermal holding 45-50min at 450-500 DEG C, at this temperature, to
Dextrin, polyvinyl alcohol, sodium citrate, water are sprayed above diatomite by weight 3.5:6:1.2:Mixture made of 10, then
It is naturally cooling to room temperature, mixture is 1 with diatomaceous weight ratio：80-90；
（2）, by step（1）The phosphoric acid solution immersion treatment 3-5min for the diatomite use quality score 20% handled well, impregnated
In journey frequency of use be 25kHz ultrasonic echography handle, then by diatomite at 55-60 DEG C drying and processing 35-40min；
（3）, by step（2）The diatomite handled well is with chitosan by weight 13-15：1 ratio mixing, uses height after mixing
Fast mixing machine is handled, and diatomite is made to be sufficiently mixed uniformly with chitosan；
（4）, by step（3）The diatomite handled well pressurize under 2Mpa pressure handles 2h, obtains modification infusorial earth.
2. a kind of processing method of papermaking wastewater according to claim 1, it is characterised in that：Before being handled using inorganic agent,
Sewage is first filtered off into floating material and suspended matter in sewage by grid, sewage, which is then put into sedimentation basin, stands 3-5h, will sink
Shallow lake is detached with sewage above, is then reused inorganic agent and is handled sewage.
3. a kind of processing method of papermaking wastewater according to claim 1 or 2, it is characterised in that：Inorganic agent will be in use, will
Inorganic agent is added in sewage, and then stirring makes inorganic agent be dispersed in sewage, stands 1-2h, is again stirring for, makes inorganic agent again
Disperse in sewage, then stand 1-2h again, filters.
4. a kind of processing method of papermaking wastewater according to claim 3, it is characterised in that：The flyash is by being modified
Processing, the specific method is as follows：（1）, flyash is broken into the particle that grain size is not more than 10mm, by fly ash grain use quality
The sulfuric acid by volume 2 of phosphoric acid, mass fraction 60% that score is 20%:3 acid soaks prepared handle 3-5min；
（2）, by step（1）The flyash handled well makes 2-3 times wash with distilled water, is then dried at 50-60 DEG C, then will
In the sulfuric acid solution that flyash is put into 10-15 times of its weight, mass fraction is 3%, using blender with the speed of 50-60r/min
Stirring, and the ultrasonication that frequency of use is 20kHz, it is that 1.5% aluminium hydroxide is molten that mass fraction is added constantly into mixture
Liquid, the addition volume of aluminum hydroxide solution are the 1/3 of sulfuric acid solution, and being continuing with blender after the completion of being added stirs and surpassed
Sonication 15-20min；
（3）, by step（2）The flyash handled well is cleaned, and surface impurity is removed, and is then placed in the phosphorus that mass fraction is 5%
In acid dihydride sodium solution, the ultrasonic oscillation that frequency of use is 25kHz handles 30-40min, takes out, drying, obtains modified fine coal
Ash.
5. a kind of processing method of papermaking wastewater according to claim 3, it is characterised in that：The wingceltis hide fiber uses
Following steps are modified processing：（1）, annual early June late May-, wingceltis peeling is selected, by wingceltis use quality point
The lignin sulfonic acid sodium solution immersion treatment 120-150min of number 1.2%；
（2）, by step（1）The wingceltis handled well carries out roller process, when first time roll-in, the roller of roll squeezer using roll squeezer
Spacing is the 2/3 of wingceltis maximum gauge, and the roller spacing of roll squeezer is reduced 2mm by roller process every time later, until roll squeezer
Roller stop roller process when being smaller than 1.2mm, after each roll-in, the wingceltis after roll-in is used into sodium carbonate-
Sodium bicarbonate buffer system, dodecyl sodium sulfate, water are by weight 5：1：200 solution prepared impregnate 8-10min, then again
It is further processed；
（3）, by step（2）The wingceltis handled well uses compound soak immersion treatment 60-75min at 42-50 DEG C, then
It is stirred using blender, fiber is made to disperse in compound soak, then removed the residue of offscum and floating, then will remain
Remaining fiber is combed, and the compound soak is made using following raw material by weight：1.2 parts of trihydroxy ethylamine oleate soap,
30 parts of 15 parts of ethanol solution, the water of 1.2 parts of dodecyl sodium sulfate, 0.4 part of triethanolamine, volume fraction 78%；
（4）, by step（3）The sodium citrate solution that the fiber handled well is 2% with mass fraction is by weight 1:2 ratio is mixed
It closes, fiber is then broken into the staple fiber that length is 2-15mm using crusher, obtains modified wingceltis hide fiber.
6. a kind of processing method of sewage according to claim 5, it is characterised in that：The sodium carbonate-bicarbonate is slow
Rush the pH9.2-10.8 of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810526536.5A CN108751322A (en) | 2018-05-29 | 2018-05-29 | A kind of processing method of papermaking wastewater |
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| CN201810526536.5A CN108751322A (en) | 2018-05-29 | 2018-05-29 | A kind of processing method of papermaking wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574461A (en) * | 2018-12-18 | 2019-04-05 | 安徽中环环保科技股份有限公司 | A kind of mixed flocculation agent and preparation method thereof for Treatment of Sludge |
| CN114656127A (en) * | 2022-03-31 | 2022-06-24 | 沧州鹏发生物科技有限公司 | Glucose-based polymeric flocculant for sludge dewatering and preparation method thereof |
-
2018
- 2018-05-29 CN CN201810526536.5A patent/CN108751322A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574461A (en) * | 2018-12-18 | 2019-04-05 | 安徽中环环保科技股份有限公司 | A kind of mixed flocculation agent and preparation method thereof for Treatment of Sludge |
| CN114656127A (en) * | 2022-03-31 | 2022-06-24 | 沧州鹏发生物科技有限公司 | Glucose-based polymeric flocculant for sludge dewatering and preparation method thereof |
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