CN102423639A - Reverse osmosis membrane special-purpose scale inhibitor and its manufacturing method - Google Patents
Reverse osmosis membrane special-purpose scale inhibitor and its manufacturing method Download PDFInfo
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- CN102423639A CN102423639A CN2011104261539A CN201110426153A CN102423639A CN 102423639 A CN102423639 A CN 102423639A CN 2011104261539 A CN2011104261539 A CN 2011104261539A CN 201110426153 A CN201110426153 A CN 201110426153A CN 102423639 A CN102423639 A CN 102423639A
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- reverse osmosis
- osmosis membrane
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Abstract
The invention relates to a reverse osmosis membrane special-purpose scale inhibitor and its manufacturing method. The scale inhibitor contains the following components of: by weight, 5-10 parts of hydroxyethylidene diphosphonic acid and sodium salt, 15-30 parts of amino trimethylene phosphonic acid (ATMP), 10-20 parts of ethylenediamine tetra methylenephosphonic acid and sodium salt, 5-10 parts of ethylene diamine tetraacetic acid disodium salt, 15-30 parts of 2-phosphonic acid-1,2,4-tricarboxyl butane, 15-30 parts of polyacrylic acid and sodium salt, 20-35 parts of an acrylic acid multipolymer, 15-30 parts of an acrylic acid sulfonic acid copolymer, 5-20 parts of hydrolyzed polymaleic anhydride and 30-40 parts of desalted water. The scale inhibitor provided by the invention can be used to effectively control sediments such as CaCO3, Ca3(PO4)2, CaSO4, BaSO4, SrSO4, SiO2 and the like, effectively stabilize Ca<2+> and Mg<2+> ions in process water, prevent the formation of insoluble fouling substances which precipitate to obstruct membrane pores, prevent coalescence of various scale and insoluble salt solids on the surface of the high-molecular reverse osmosis membrane, maintain good water molecule permeability of the reverse osmosis membrane, maintain normal water production capability and stabilize the quality of pure water.
Description
Technical field
The present invention relates to the water treatment agent technical field, particularly a kind of reverse osmosis membrane scale inhibitor special and manufacturing approach, it is to being specifically designed to counter-infiltration (RO) system and nanofiltration (NF) and ultrafiltration (UF) system antisludging agent for osmosis-reverse membrane.
Background technology
Counter-infiltration system is through fine filter, seed activity carbon filter, compression charcoal filter etc. with former water; Again through the pump pressurization; Utilizing the aperture is that 1/10000 μ m (is equivalent to 1/6000 of Escherichia coli size; Virus 1/300) reverse osmosis membrane (RO film), the impurity of simultaneously industrial pollutants, heavy metal, bacterium, virus etc. being sneaked in the water is in a large number all isolated, thereby reaches the physical and chemical index and the sanitary standard of drinking regulation; Output is to clear extremely pure water; Be the optimal selection that human body in time replenishes high-quality moisture content, because the water degree of purity of RO reverse osmosis technology production is the highest in the human at present cutting water technology of grasping, cleanliness factor almost reaches 100%.Reverse osmosis membrane is the key equipment of counter-infiltration system, and when system's long-time continuous was moved, calcium magnesium plasma can constantly separate out and in the reverse osmosis membrane surface attachment, form fouling and stop up fenestra in the water, can influence the water outlet efficient of counter-infiltration system like this, damages reverse osmosis membrane.
Summary of the invention
The object of the present invention is to provide a kind of reverse osmosis membrane scale inhibitor special and manufacturing approach, mainly solve above-mentioned existing in prior technology problem, it can control CaCO effectively
3, Ca
3(PO
4)
2, CaSO
4, BaSO
4, SrSO
4, the dirty thing of deposition such as SiO2, the effectively Ca in the process for stabilizing water
2+, Mg
2+Ion; Stop it to form insoluble scale forming matter deposition and separate out the obstruction fenestra, prevent macromolecule reverse osmosis membrane surface various incrustation scales of coalescence and insoluble salt solid, make reverse osmosis membrane keep good hydrone through performance; Keep normal water-making ability, stablize the pure water quality.
The present invention will realize that above purpose realizes through following scheme.
A kind of reverse osmosis membrane scale inhibitor special is characterized in that: this antisludging agent is 5～10 parts of HEDP and sodium salts according to the composition of parts by weight, 15～30 parts of ATMPs; 10～20 parts of ethylene diamine tetra methylene phosphonic acid and sodium salts, 5～10 parts of disodium ethylene diamine tetraacetates, 2-phosphonic acids-1; 2,15～30 parts of 4-tri carboxyl butanes, 15～30 parts of polyacrylic acid and sodium salts; 20～35 parts of acrylic-multipolymers; 15～30 parts of acrylic acid sulfonic acid copolymers, 5～20 parts of hydrolyzed polymaleic anhydrides, 30～40 parts of demineralized waters.
A kind of manufacturing approach of aforesaid a kind of reverse osmosis membrane scale inhibitor special; It is characterized in that: its processing step is; With HEDP and sodium salt, ATMP, ethylene diamine tetra methylene phosphonic acid and sodium salt, disodium ethylene diamine tetraacetate, 2-phosphonic acids-1; 2; 4-tri carboxyl butane, polyacrylic acid and sodium salt, acrylic-multipolymer, acrylic acid sulfonic acid copolymer, hydrolyzed polymaleic anhydride, demineralized water add in the container successively, at room temperature evenly stir to get product in 2～2.5 hours.
By technique scheme, advantage of the present invention is.
1, counter-infiltration circulation uses this bright disclosed a kind of reverse osmosis membrane scale inhibitor special solubilized to remove the long-pending incrustation scale of tying on the reverse osmosis membrane for a long time; The protection reverse osmosis unit is in the system water state of efficient stable; Efficient recovery and the service life that prolongs reverse osmosis membrane are arranged, reach the effect of cleaning operation;
2, the disclosed a kind of reverse osmosis membrane scale inhibitor special of the present invention is nonpoisonous and tasteless, does not see through reverse osmosis membrane and gets into pure water, and pure water is not had influence.This antisludging agent dissolve deposits with the reverse osmosis membrane reaction, does not therefore have corrosion damage to reverse osmosis membrane and associated component, reaches purpose of safe operation.
The specific embodiment
Embodiment 1: with HEDP and 5 parts of sodium salts, 15 parts of ATMPs, ethylene diamine tetra methylene phosphonic acid and 10 parts of sodium salts, 5 parts of disodium ethylene diamine tetraacetates, 2-phosphonic acids-1; 2; 15 parts of 4-tri carboxyl butanes, polyacrylic acid and 15 parts of sodium salts, 20 parts of acrylic-multipolymers, 15 parts of acrylic acid sulfonic acid copolymers, 5 parts of hydrolyzed polymaleic anhydrides, demineralized water add in the container for 30 parts successively, at room temperature evenly stir to get product in 2～2.5 hours.
Embodiment 2: with HEDP and 8 parts of sodium salts, 20 parts of ATMPs, ethylene diamine tetra methylene phosphonic acid and 15 parts of sodium salts, 8 parts of disodium ethylene diamine tetraacetates, 2-phosphonic acids-1; 2; 20 parts of 4-tri carboxyl butanes, polyacrylic acid and 20 parts of sodium salts, 30 parts of acrylic-multipolymers, 25 parts of acrylic acid sulfonic acid copolymers, 15 parts of hydrolyzed polymaleic anhydrides, demineralized water add in the container for 35 parts successively, at room temperature evenly stir to get product in 2～2.5 hours.
Embodiment 3: with HEDP and 10 parts of sodium salts, 30 parts of ATMPs, ethylene diamine tetra methylene phosphonic acid and 20 parts of sodium salts, 10 parts of disodium ethylene diamine tetraacetates, 2-phosphonic acids-1; 2; 30 parts of 4-tri carboxyl butanes, polyacrylic acid and 30 parts of sodium salts, 35 parts of acrylic-multipolymers, 30 parts of acrylic acid sulfonic acid copolymers, 20 parts of hydrolyzed polymaleic anhydrides, demineralized water add in the container for 40 parts successively, at room temperature evenly stir to get product in 2～2.5 hours.
Being merely preferred embodiment of the present invention in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of claim of the present invention change and modification, all should be technological category of the present invention.
Claims (2)
1. reverse osmosis membrane scale inhibitor special is characterized in that: this antisludging agent is 5～10 parts of HEDP and sodium salts according to the composition of parts by weight, 15～30 parts of ATMPs; 10～20 parts of ethylene diamine tetra methylene phosphonic acid and sodium salts, 5～10 parts of disodium ethylene diamine tetraacetates, 2-phosphonic acids-1; 2,15～30 parts of 4-tri carboxyl butanes, 15～30 parts of polyacrylic acid and sodium salts; 20～35 parts of acrylic-multipolymers; 15～30 parts of acrylic acid sulfonic acid copolymers, 5～20 parts of hydrolyzed polymaleic anhydrides, 30～40 parts of demineralized waters.
2. the manufacturing approach of an a kind of reverse osmosis membrane scale inhibitor special as claimed in claim 1; It is characterized in that: its processing step is; With HEDP and sodium salt, ATMP, ethylene diamine tetra methylene phosphonic acid and sodium salt, disodium ethylene diamine tetraacetate, 2-phosphonic acids-1; 2; 4-tri carboxyl butane, polyacrylic acid and sodium salt, acrylic-multipolymer, acrylic acid sulfonic acid copolymer, hydrolyzed polymaleic anhydride, demineralized water add in the container successively, at room temperature evenly stir to get product in 2～2.5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104261539A CN102423639A (en) | 2011-12-19 | 2011-12-19 | Reverse osmosis membrane special-purpose scale inhibitor and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104261539A CN102423639A (en) | 2011-12-19 | 2011-12-19 | Reverse osmosis membrane special-purpose scale inhibitor and its manufacturing method |
Publications (1)
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|---|---|
| CN102423639A true CN102423639A (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104261539A Pending CN102423639A (en) | 2011-12-19 | 2011-12-19 | Reverse osmosis membrane special-purpose scale inhibitor and its manufacturing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895883A (en) * | 2012-10-18 | 2013-01-30 | 韶关市雅鲁环保实业有限公司 | Reverse osmosis membrane scale inhibitor |
| CN103708636A (en) * | 2013-12-11 | 2014-04-09 | 山东华亚环保科技有限公司 | Scale and corrosion inhibitor |
-
2011
- 2011-12-19 CN CN2011104261539A patent/CN102423639A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895883A (en) * | 2012-10-18 | 2013-01-30 | 韶关市雅鲁环保实业有限公司 | Reverse osmosis membrane scale inhibitor |
| CN103708636A (en) * | 2013-12-11 | 2014-04-09 | 山东华亚环保科技有限公司 | Scale and corrosion inhibitor |
| CN103708636B (en) * | 2013-12-11 | 2015-07-15 | 山东建筑大学 | Scale and corrosion inhibitor |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120425 |