CN109607661A - A kind of the slug type active carbon filter core and its preparation process of control release scale inhibition composition - Google Patents
A kind of the slug type active carbon filter core and its preparation process of control release scale inhibition composition Download PDFInfo
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- CN109607661A CN109607661A CN201811321115.5A CN201811321115A CN109607661A CN 109607661 A CN109607661 A CN 109607661A CN 201811321115 A CN201811321115 A CN 201811321115A CN 109607661 A CN109607661 A CN 109607661A
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- active carbon
- scale inhibition
- raw material
- acid
- filter core
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Classifications
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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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
- C02F5/145—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
Abstract
The present invention relates to the slug type active carbon filter core and its preparation process of a kind of control release scale inhibition ingredient, raw material includes purification object, framework material, scale inhibition raw material, slow controlled-release material；The purification object includes active carbon, and the framework material includes ultra high molecular polyethylene；The slow controlled-release material includes chitosan, polylactic acid, polyglycolic acid, alginic acid and lactide-co-glycolide.Slug type active carbon filter core obtained uses in water purification system as front filter element, and the rate of recovery reverse osmosis, in sodium filter-type water purification system, which can be improved, does not influence the service life of film when concentrate recirculation.
Description
Technical field
The invention belongs to Water treatment filtration technologies, and in particular to a kind of slug type activity carbon filtration of control release scale inhibition composition
Core and its preparation process.
Background technique
For in drinking water treatment filter plant on existing market, for calcium in high rigidity tap water or underground water, magnesium from
The scale problems such as son generally use reverse osmosis deaslination technique, remove the fouling composition of the calcium and magnesium ion in water removal.So-called fouling, be by
Micro-/indissoluble the ion contained in purified aqueous solution under RO hyperbaric environment system its ionic product be greater than corresponding conditions solubility product when in
Reverse osmosis membrane surface forms the phenomenon that micro indissoluble saline deposit, the cation (calcium and magnesium barium etc.) and yin being just dissolved in raw water
Ion (carbonate, phosphate radical, sulfate radical etc.) combines carbonate, the phosphate etc. generated, in RO equipment running process, concentrated water
With the increase of ion concentration, unstable carbonate etc. breaks balance for side, and calcium ions and magnesium ions are with the crystallization such as calcium carbonate, magnesium carbonate
Form film surface deposit, to form scale.Reverse osmosis deaslination technique is the UF membrane mistake using barometric gradient as power
Journey removes dissolved salts, colloid, bacterium and organic matter in water removal as molecular filter.Since the process is that nature seeps
Saturating inverse process, therefore in use, it to generate reverse osmotic pressure needs that saline solution is applied pressure with water pump, to make
Water penetrates reverse osmosis membrane；Meanwhile in order to avoid the impurity such as dissolved salts are in the surface aggregation of film in water, when operation, concentrated water should
It constantly rinses film surface and takes the impurity of film surface out of.Otherwise, once film surface texture, cause film obstruction, film logical
The problems such as amount reduces, desalting efficiency declines, osmotic pressure increases, is deposited on detention layer of the microscopic grains core in membrane channels of film surface
Absorption accumulation, and bigger crystal grain is slowly become, it finally results in membrane flux and becomes smaller, or even film is caused to block, eventually lead to
The paralysis of RO device.Since inorganic salt crystal has sharp corner angle, during film surface is concentrated and accumulates, it is easy to cause
Film surface scratches, to make the lost of life of film, increases industrial cost.
Calcium ions and magnesium ions fouling in water in order to prevent in the prior art, usually on the filter material being placed in water add scale inhibition at
Point, it forms stable soluble chelating object with calcium ions and magnesium ions in water using scale inhibition ingredient, is destroying the crystal such as calcium carbonate just
It is frequently grown process.However, the addition of this kind of antisludging agent, disadvantage is clearly.The scale inhibition ingredient as used in the prior art
It is mostly phosphorous higher, it is easy to happen hydrolysis and generates orthophosphates, as concentrated water ion concentration increases, orthophosphates is deposited on RO again
On the surface of film, the phenomenon that generating secondary fouling；Meanwhile the nutrient source that they or Institute of Micro-biology need, it is easy to cause algae bacterium
Class growth pollutes reverse osmosis membrane, influences the service life of reverse osmosis membrane, above-mentioned technology is in practical application, reverse osmosis membrane
The rate of recovery be generally 25% or so.Antisludging agent on existing market also needs to add dedicated medicine machine sometimes, to control dosing
Amount undoubtedly makes the device is complicated change, improve operation expense again.
However, National Standards Commission is to carry out water resources management system, marks and guard water-use efficiency control red line, publication rigidly
New national standard GB34914-2017, and implement on November 1st, 2018.If deliberately adjustment increases the rate of recovery, violate reverse osmosis
The attribute of film, membrane lifetime greatly reduce.The rate of recovery, and the side of save the cost can either be effectively improved by lacking one kind in the prior art
Method, not only can achieve the standard of country's promulgation, but also can be adapted for the reality of marketization popularization.
Summary of the invention
It is an object of the invention to provide a kind of slug type active carbon filter cores of control release scale inhibition composition, are answered
For for dispersing scale, and controlling scale inhibition composition rate of release in reverse osmosis sodium filter-type water purification system.
A kind of slug type active carbon filter core of control release scale inhibition ingredient, raw material include purification object, framework material, scale inhibition
Raw material, slow controlled-release material；The purification object includes active carbon, and the framework material includes ultra high molecular polyethylene；The slow control
Releasing material includes chitosan, polylactic acid, polyglycolic acid, alginic acid and lactide-co-glycolide.
Further, the active carbon is 80-325 mesh.
Further, the molecular weight of the ultra high molecular polyethylene is 500W or more.
The materials ratio of raw material is based on following mass ratio:
Active carbon 50-70%
Ultra high molecular polyethylene 20-40%
Scale inhibition raw material eases up controlled-release material surplus.
Specifically, the scale inhibition raw material includes at least double 1,6- hexamethylene triamine pentamethylene phosphonic acids, three methene phosphine of amino
Acid, hydroxyl Asia second di 2 ethylhexyl phosphonic acid, six inclined Alendronates.
Double 1,6- hexamethylene triamine pentamethylene Phosphonic acid molecules amounts are 685, are by mass percentage the 1- of raw material
10%；The aminotrimethylenephosphonic acid molecular weight is 299, is by mass percentage the 0.5-3% of raw material.
The hydroxyl Asia second di 2 ethylhexyl phosphonic acid molecular weight is 206, is by mass percentage the 0.5-6% of raw material.
The six inclined Alendronate is the 0.5-10% of raw material by mass percentage.
The slow controlled-release material each component accounts for material quality percentage are as follows:
Slug type active carbon filter core provided by the invention has the function that purified water by active carbon, and poly- with supra polymer
Ethylene is sintered jointly forms matrix type Water permeable body, and effect is screening filtering bulky grain pollutant and adsorbs organic matter；Utilize burning
Scale inhibition raw material on junction type active carbon filter core forms stable soluble chelating object with calcium and magnesium plasma in water, by more calcium
Magnesium ion is stablized in concentrated water, increases the solubility of calcium ions and magnesium ions, inhibits the formation of scale；Alginic acid have it is nontoxic, have excellent
Good biocompatibility and film forming mouldability, and alginic acid itself is negatively charged, when being used in conjunction with positively charged chitosan, the two
Gel, which can be formed, by electrostatic interaction crosses step microencapsulation package scale inhibition composition.Since electrostatic interaction is a kind of weak phase
Interreaction force, the covalent bond behavior not being related in cross-linking process, on the scale inhibition composition contained without very influencing.Therefore, by slow control
The incrustation ion that material can disperse in reflux concentrated water is released, scale inhibition ingredient rate of release, save the cost are controlled.
The second object of the present invention is to also provide the preparation process of above-mentioned slug type active carbon filter core, the preparation process packet
Include following steps:
(1) scale inhibition ingredient is synthesized:
S1: 200 mesh screen sievings of ultra-high molecular weight polyethylene are handled；
S2: weighing, and the ultra-high molecular weight polyethylene and scale inhibition raw material of S1 are weighed according to certain mass ratio: double 1,6- it is sub- oneself
Base triamine pentamethylene phosphonic acids, aminotrimethylenephosphonic acid, hydroxyl Asia second di 2 ethylhexyl phosphonic acid, six inclined Alendronates, are put into V-Mixer；
S3: by the mixture hot briquetting of step S2, then demoulding processing crushes, scale inhibition ingredient finished product is made.
(2) slow controlled release component is deployed:
B1: chitosan, polylactic acid, polyglycolic acid are weighed according to the materials ratio of setting, addition mixes up in device, mixing；
B2: alginic acid and lactide-co-glycolide are weighed according to the materials ratio of setting, is added in pure water, at 25 DEG C
Under the conditions of stir；It is added into the device that mixes up of B1 and mixes again；
B3: by the mixture evaporation drying of B2, slow controlled release finished product is made.
(3) 80-325 mesh cocoanut active charcoal, ultra high molecular polyethylene, resistance sinter molding: are weighed according to the mass ratio of setting
Dirty ingredient finished product, slow controlled release finished product are mixed in V-Mixer mixing, are then poured into mold, and ram-jolt of pressurizeing, encapsulation is put into height
In warm furnace, carbon rod is made in demoulding cooling.
Preferably, double 1,6- hexamethylene triamine pentamethylene phosphonic acids described in step S2, aminotrimethylenephosphonic acid,
Hydroxyl Asia second di 2 ethylhexyl phosphonic acid, six inclined Alendronates mass ratio be 1:1.5:3:1；The ultra-high molecular weight polyethylene and above-mentioned scale inhibition are former
The mass ratio of material is 10:1, is rotated forward by mixing machine, inverts each stirring 3-10 minutes.
The temperature of hot briquetting is 150 DEG C in step S2；It is crushed to 150 mesh of grain diameter.
Alginic acid and the mass ratio of lactide-co-glycolide are 2:1 in step B2.
Preferably, the quality of the active carbon, ultra high molecular polyethylene, scale inhibition ingredient finished product, slow controlled release finished product
Than for 9:3:0.8:0.3；The processing mode of high temperature furnace is to heat 130min at 280 DEG C.
Slug type active carbon filter core made from technique provided by the invention uses in water purification system as front filter element, can
The service life of film is not influenced when concentrate recirculation to improve the rate of recovery reverse osmosis, in sodium filter-type water purification system.Burning obtained
Junction type active carbon filter core has the function that purified water by active carbon, and is sintered jointly with ultra high molecular polyethylene and forms matrix type
Water permeable body, effect are screening filtering bulky grain pollutants and adsorb organic matter；Utilize the scale inhibition on slug type active carbon filter core
Raw material forms stable soluble chelating object with calcium and magnesium plasma in water, and more calcium ions and magnesium ions are stablized in concentrated water, increases
The solubility of big calcium ions and magnesium ions, inhibits the formation of scale；Alginic acid have it is nontoxic, have excellent biocompatibility and film forming at
Type, and alginic acid itself is negatively charged, when being used in conjunction with positively charged chitosan, the two can be formed by electrostatic interaction
Gel crosses step microencapsulation package scale inhibition composition.Since electrostatic interaction is a kind of weak interaction force, it is not related to being crosslinked
Covalent bond behavior in journey, on the scale inhibition composition contained without very influencing.Therefore, the concentrated water that flows back can be dispersed by slow controlled-release material
In incrustation ion, control scale inhibition ingredient rate of release, save the cost.
Specific embodiment
The technical solution that the present invention will be described in detail combined with specific embodiments below.
Embodiment 1
A kind of slug type active carbon filter core of control release scale inhibition ingredient, raw material include purification object, framework material, scale inhibition
Raw material, slow controlled-release material；The purification object includes active carbon, and the framework material includes ultra high molecular polyethylene；The slow control
Releasing material includes chitosan, polylactic acid, polyglycolic acid, alginic acid and lactide-co-glycolide.
Further, the active carbon is 80-325 mesh, is by mass percentage the 50-70% of raw material.
Further, the molecular weight of the ultra high molecular polyethylene is 500W, is by mass percentage the 20- of raw material
40%.
Specifically, the scale inhibition raw material includes double 1,6- hexamethylene triamine pentamethylene phosphonic acids, aminotrimethylenephosphonic acid, hydroxyl
Base Asia second di 2 ethylhexyl phosphonic acid, six inclined Alendronates.
Double 1,6- hexamethylene triamine pentamethylene Phosphonic acid molecules amounts are 685, are by mass percentage the 1- of raw material
10%；The aminotrimethylenephosphonic acid molecular weight is 299, is by mass percentage the 0.5-3% of raw material.
The hydroxyl Asia second di 2 ethylhexyl phosphonic acid molecular weight is 206, is by mass percentage the 0.5-6% of raw material.
The six inclined Alendronate is the 0.5-10% of raw material by mass percentage.
The slow controlled-release material each component accounts for material quality percentage are as follows:
The slug type active carbon filter core of embodiment 1 has the function that purified water by active carbon, and with the poly- second of supra polymer
Alkene is sintered jointly forms matrix type Water permeable body, and effect is screening filtering bulky grain pollutant and adsorbs organic matter；Utilize sintering
Scale inhibition raw material on type active carbon filter core forms stable soluble chelating object with calcium and magnesium plasma in water, by more calcium and magnesiums
It is ion stabilized to increase the solubility of calcium ions and magnesium ions in concentrated water, inhibit the formation of scale；Alginic acid have it is nontoxic, have excellent
Biocompatibility and film forming mouldability, and alginic acid itself is negatively charged, and when being used in conjunction with positively charged chitosan, the two is logical
Cross electrostatic interaction can be formed gel cross a step microencapsulation package scale inhibition composition.Since electrostatic interaction is a kind of weak mutual
Active force, the covalent bond behavior not being related in cross-linking process, on the scale inhibition composition contained without very influencing.Therefore, by slow controlled release
Material can disperse the incrustation ion in reflux concentrated water, control scale inhibition ingredient rate of release, save the cost.
Embodiment 2
The preparation process of the slug type active carbon filter core of embodiment 1 is prepared, the preparation process includes the following steps:
(1) scale inhibition ingredient is synthesized:
S1: 200 mesh screen sievings of ultra-high molecular weight polyethylene (molecular weight 500W) are handled；
S2: weighing the ultra-high molecular weight polyethylene 150g of S1, according to double 1,6- hexamethylene triamine pentamethylene phosphonic acids: amino
Three methylenephosphonic acids: hydroxyl Asia second di 2 ethylhexyl phosphonic acid: the mass ratio of six inclined Alendronate=1:1.5:3:1 weighs the total 15g of scale inhibition raw material, is put into
V-Mixer rotates forward, inverts each stirring 10 minutes；
S3: by the hot briquetting at 150 DEG C of the mixture of step S2, then demoulding processing, then it is crushed to grain diameter 150
Scale inhibition ingredient finished product is made in mesh.
(2) slow controlled release component is deployed:
B1: chitosan, polylactic acid, polyglycolic acid are weighed according to the materials ratio of setting, addition mixes up in device, mixing 5
Minute；
B2: alginic acid 30g and lactide-co-glycolide 15g are weighed according to the materials ratio of setting, it is pure to add to 100g
In water, stirred 5 minutes under the conditions of 25 DEG C；It is added into the device that mixes up of B1 and mixes 5 minutes again；
B3: by the mixture evaporation drying of B2, slow controlled release finished product is made.
(3) 80-325 mesh cocoanut active charcoal, supra polymer polyethylene, resistance sinter molding: are weighed according to the mass ratio of setting
Dirty ingredient finished product, slow controlled release finished product (ratio 9:3:0.8:0.3) are mixed in V-Mixer mixing 10min, are then poured into
Mold, ram-jolt of pressurizeing, encapsulation, which is put into high temperature furnace at 280 DEG C, heats 130min, and carbon rod is made in demoulding cooling.
Slug type active carbon filter core obtained has the function that purified water by active carbon, and total with ultra high molecular polyethylene
Matrix type Water permeable body is formed with sintering, effect is screening filtering bulky grain pollutant and adsorbs organic matter；It is living using slug type
Scale inhibition raw material in property filtration core forms stable soluble chelating object with calcium and magnesium plasma in water, by more calcium ions and magnesium ions
Stablize in concentrated water, increases the solubility of calcium ions and magnesium ions, inhibit the formation of scale；Alginic acid have it is nontoxic, have excellent life
Object compatibility and film forming mouldability, and alginic acid itself is negatively charged, when being used in conjunction with positively charged chitosan, the two passes through quiet
Electric interactions can form gel and cross step microencapsulation package scale inhibition composition.Since electrostatic interaction is a kind of weak interaction
Power, the covalent bond behavior not being related in cross-linking process, on the scale inhibition composition contained without very influencing.Therefore, by slow controlled-release material
It can disperse the incrustation ion in reflux concentrated water, control scale inhibition ingredient rate of release, save the cost.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is modified.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to of the invention
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (10)
1. a kind of slug type active carbon filter core of control release scale inhibition ingredient, which is characterized in that raw material includes purification object, skeleton material
Material, scale inhibition raw material, slow controlled-release material；The purification object includes active carbon, and the framework material includes ultra high molecular polyethylene；Institute
Stating slow controlled-release material includes chitosan, polylactic acid, polyglycolic acid, alginic acid and lactide-co-glycolide.
2. slug type active carbon filter core according to claim 1, which is characterized in that the active carbon is 80-325 mesh, institute
The molecular weight for stating ultra high molecular polyethylene is 500W or more.
3. slug type active carbon filter core according to claim 1, which is characterized in that the materials ratio of raw material presses following quality
Than meter:
Active carbon 50-70%
Ultra high molecular polyethylene 20-40%
Scale inhibition raw material eases up controlled-release material surplus.
4. slug type active carbon filter core according to claim 3, which is characterized in that the scale inhibition raw material includes at least double 1,
6- hexamethylene triamine pentamethylene phosphonic acids, aminotrimethylenephosphonic acid, hydroxyl Asia second di 2 ethylhexyl phosphonic acid and six inclined Alendronates.
5. slug type active carbon filter core according to claim 4, which is characterized in that double 1,6- hexamethylene triamines five are sub-
Methylphosphonic acid molecular weight is 685, is by mass percentage the 1-10% of raw material；The aminotrimethylenephosphonic acid molecular weight is
299, it is by mass percentage the 0.5-3% of raw material；The hydroxyl Asia second di 2 ethylhexyl phosphonic acid molecular weight is 206, by weight percent
It is calculated as the 0.5-6% of raw material；The six inclined Alendronate is the 0.5-10% of raw material by mass percentage.
6. slug type active carbon filter core according to claim 5, which is characterized in that the slow controlled-release material each component accounts for original
Expect mass percent are as follows:
7. the preparation process of any slug type active carbon filter core of claim 1-6, includes the following steps:
(1) scale inhibition ingredient is synthesized:
S1: 200 mesh screen sievings of ultra-high molecular weight polyethylene are handled；
S2: weighing, and the ultra-high molecular weight polyethylene and scale inhibition raw material of S1 are weighed according to certain mass ratio, is put into V-Mixer；
S3: by the mixture hot briquetting of step S2, then demoulding processing crushes, scale inhibition ingredient finished product is made；
(2) slow controlled release component is deployed:
B1: chitosan, polylactic acid, polyglycolic acid are weighed according to the materials ratio of setting, addition mixes up in device, mixing；
B2: alginic acid and lactide-co-glycolide are weighed according to the materials ratio of setting, is added in pure water, in 25 DEG C of conditions
Lower stirring；It is added into the device that mixes up of B1 and mixes again；
B3: by the mixture evaporation drying of B2, slow controlled release finished product is made；
(3) sinter molding: according to the mass ratio of setting weigh 80-325 mesh active carbon, ultra high molecular polyethylene, scale inhibition ingredient at
Product, slow controlled release finished product are mixed in V-Mixer mixing, are then poured into mold, and ram-jolt of pressurizeing, encapsulation is put into high temperature furnace,
Demoulding cooling, is made carbon rod.
8. preparation process according to claim 7, which is characterized in that double 1,6- hexamethylene triamines five described in step S2 are sub-
Methylphosphonic acid, aminotrimethylenephosphonic acid, hydroxyl Asia second di 2 ethylhexyl phosphonic acid, six inclined Alendronates mass ratio be 1:1.5:3:1；The superelevation
The mass ratio of molecular weight polyethylene and above-mentioned scale inhibition raw material is 10:1, is rotated forward by mixing machine, inverts each stirring 3-10 minutes；Step
The temperature of hot briquetting is 150 DEG C in rapid S2；It is crushed to 150 mesh of grain diameter.
9. preparation process according to claim 7, which is characterized in that alginic acid and lactide glycolide copolymerization in step B2
The mass ratio of object is 2:1.
10. preparation process according to claim 7, which is characterized in that the active carbon, ultra high molecular polyethylene, scale inhibition
Ingredient finished product, the mass ratio for delaying controlled release finished product are 9:3:0.8:0.3；The processing mode of high temperature furnace is to heat at 280 DEG C
130min。
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| CN111777199A (en) * | 2020-07-14 | 2020-10-16 | 东莞乔隆家具配件制品有限公司 | Scale-inhibiting sintered carbon rod and preparation method thereof |
| CN113842708A (en) * | 2020-06-28 | 2021-12-28 | 朱晓峰 | Filter element for controlling release of scale inhibition components in water purification system and production method |
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