CN102716672A - Composite cleaning agent for cleaning calciferous, magniferous, siliceous and ferrous fouling of membrane system - Google Patents
Composite cleaning agent for cleaning calciferous, magniferous, siliceous and ferrous fouling of membrane system Download PDFInfo
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- CN102716672A CN102716672A CN2012101930831A CN201210193083A CN102716672A CN 102716672 A CN102716672 A CN 102716672A CN 2012101930831 A CN2012101930831 A CN 2012101930831A CN 201210193083 A CN201210193083 A CN 201210193083A CN 102716672 A CN102716672 A CN 102716672A
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Abstract
The invention discloses a composite cleaning agent for cleaning calciferous, magniferous, siliceous and ferrous fouling of a membrane system, relates to the technical field of water treatment, and particularly relates to a composite cleaning agent. Firstly, from 27 to 33 mass parts of hydroxyethylidene-1,1-diphosphonic acid are dissolved in pure water and are stirred for 8 to 12 minutes until the powder is completely dissolved, and pure water is added into the mixture to obtain from 80 to 120 mass parts of solution; and secondly, from 14 to 16 mass parts of polyacrylic acid are added onto the solution and are stirred for 0.8 to 1.2 hours, from 8 to 12 mass parts of sodium carbonate are added into the solution and stirred for 0.8 to 1.2 hours, the mixed solution is allowed to stand for 2.5 to 3.5 hours, so that the novel cleaning agent for reverse osmosis membranes is prepared. The composite cleaning agent aims to overcome shortcomings in the prior art, various medicaments are compounded, the developed component not only can clean a plurality of simple calciferous and magniferous fouling, but also can clean parts of multi-year old fouling, and effects are quite ideal after the composite cleaning agent is tried out by a plurality of enterprises.
Description
Technical field
The present invention relates to water-treatment technology field, be specifically related to complex cleaning and washing agent.
Background technology
Reverse osmosis membrane often cleans with single medicament in order to save system operation cost at present a lot of enterprises, and the simplest in fact problem is exactly PH control; If PH control is improper; Be easy to cause the irreversible damage of RO film, in addition, only use cleaning agents such as hydrochloric acid or citric acid; Effect is very single; Though can wash simple dirts such as some calcium ions and magnesium ions off, can not wash some dirty always perhaps chronic dirts of fouling off, so just caused the shortcoming that bounce-back is fast, cleaning is frequent.
Summary of the invention
The present invention provides the complex cleaning and washing agent of a kind of cleaning membrane system calcic, magnesium, silicon, iron dirt; The present invention is directed to the defective that prior art exists, the present invention to various medicaments carry out compound, the prescription of developing; Not only can wash some simple calcium magne-scales; And can wash part deposition old dirt for many years, on probation through too much company, effect is very good.
For addressing the above problem; The present invention adopts following technical scheme: the complex cleaning and washing agent of a kind of cleaning membrane system calcic, magnesium, silicon, iron dirt; The hydroxy ethylidene-diphosphate of at first getting the 27-33 mass parts is dissolved in pure water; Stir and dissolved fully to powder in 8-12 minute, be diluted to the 80-120 mass parts adding pure water; Secondly, the polyacrylic acid of getting the 14-16 mass parts adds in the solution, stirs 0.8-1.2 hour, and the sodium carbonate that in solution, adds the 8-12 mass parts again stirred 0.8-1.2 hour, left standstill and had been made into a kind of novel reverse osmosis membrane cleaning agent after 2.5-3.5 hour.
This cleaning agent is inorganic scales such as chelating complexing calcium, magnesium, silicon, iron effectively, and clay, suspension etc. is had peptizaiton.
The dirt on reverse osmosis membrane surface is mainly derived from the deposition of materials such as various organic matters, metal ion, oxide, suspension in the former water, causes the permeability of film to descend.The present invention is composite through using hydroxy ethylidene-diphosphate, sodium carbonate and polyacrylic acid to carry out, and produces a kind of novel counter-infiltration acidic cleaner.
Advantage of the present invention: can remove old old dirt and some obstinate dirts, effectively increase the permeability of film, improve aquifer yield and produce quality, prolong the service life of film, reduce old of operation.
The specific embodiment
With illustrated embodiments the present invention is done detailed explanation
below.
At first get the 30kg hydroxy ethylidene-diphosphate and be dissolved in pure water; Stir and dissolved fully to powder in 10 minutes, be diluted to 100kg adding pure water, secondly; Getting the 15kg polyacrylic acid adds in the solution; Stirred 1 hour, and in solution, added 10kg sodium carbonate again and stirred 1 hour, leave standstill and be made into a kind of novel reverse osmosis membrane cleaning agent after 3 hours.This cleaning agent is inorganic scales such as chelating complexing calcium, magnesium, silicon, iron effectively, and clay, suspension etc. is had peptizaiton.
Method for using: cleaning agent is pressed the 1:45 dilution with pure water, and PH is controlled between the 2-3, system is cleaned again.
Adopt the cleaning agent of above-mentioned cleaning agent and said method and prior art to clean reverse osmosis membrane; Both clean the back contrast; Cleaning agent of the present invention cleans inorganic scales such as back calcium, magnesium, silicon, iron, and clay, the existing skill of suspension geometric ratio all reduce 40-80% after stating cleaning.
What should explain at last is: obviously, the foregoing description only be for clearly the present invention is described and is done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being amplified out thus or change still are among protection scope of the present invention.
Claims (1)
1. the complex cleaning and washing agent of a cleaning membrane system calcic, magnesium, silicon, iron dirt; It is characterized in that: the hydroxy ethylidene-diphosphate of at first getting the 27-33 mass parts is dissolved in pure water; Stir and dissolved fully to powder in 8-12 minute, be diluted to the 80-120 mass parts adding pure water; Secondly, the polyacrylic acid of getting the 14-16 mass parts adds in the solution, stirs 0.8-1.2 hour, and the sodium carbonate that in solution, adds the 8-12 mass parts again stirred 0.8-1.2 hour, left standstill and had been made into a kind of novel reverse osmosis membrane cleaning agent after 2.5-3.5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101930831A CN102716672A (en) | 2012-06-13 | 2012-06-13 | Composite cleaning agent for cleaning calciferous, magniferous, siliceous and ferrous fouling of membrane system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101930831A CN102716672A (en) | 2012-06-13 | 2012-06-13 | Composite cleaning agent for cleaning calciferous, magniferous, siliceous and ferrous fouling of membrane system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102716672A true CN102716672A (en) | 2012-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101930831A Pending CN102716672A (en) | 2012-06-13 | 2012-06-13 | Composite cleaning agent for cleaning calciferous, magniferous, siliceous and ferrous fouling of membrane system |
Country Status (1)
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| CN (1) | CN102716672A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736396A (en) * | 2014-01-10 | 2014-04-23 | 天津市环境保护科学研究院 | Composite cleaning agent of ozone catalysis inorganic membrane and preparation method of composite cleaning agent |
Citations (5)
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|---|---|---|---|---|
| JP2004083506A (en) * | 2002-08-28 | 2004-03-18 | Toray Ind Inc | Bactericide for water treatment, water treatment method and water treatment device |
| CN101638273A (en) * | 2009-08-28 | 2010-02-03 | 张振海 | High-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler |
| CN101759305A (en) * | 2009-11-17 | 2010-06-30 | 上海丰信环保科技有限公司 | Water-quality antisludging agent with high hardness and high iron content |
| CN101913714A (en) * | 2010-05-25 | 2010-12-15 | 河南省科学院高新技术研究中心 | Reverse osmosis water treatment agent and preparation method thereof |
| CN101935107A (en) * | 2009-07-03 | 2011-01-05 | 上海丰信环保科技有限公司 | High-hardness water-quality scale inhibition agent |
-
2012
- 2012-06-13 CN CN2012101930831A patent/CN102716672A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004083506A (en) * | 2002-08-28 | 2004-03-18 | Toray Ind Inc | Bactericide for water treatment, water treatment method and water treatment device |
| CN101935107A (en) * | 2009-07-03 | 2011-01-05 | 上海丰信环保科技有限公司 | High-hardness water-quality scale inhibition agent |
| CN101638273A (en) * | 2009-08-28 | 2010-02-03 | 张振海 | High-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler |
| CN101759305A (en) * | 2009-11-17 | 2010-06-30 | 上海丰信环保科技有限公司 | Water-quality antisludging agent with high hardness and high iron content |
| CN101913714A (en) * | 2010-05-25 | 2010-12-15 | 河南省科学院高新技术研究中心 | Reverse osmosis water treatment agent and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 冯逸仙等: "《反渗透水处理工程》", 31 August 2000, 中国电力出版社 * |
| 苑宝玲等: "《水处理新技术原理与应用》", 30 April 2006, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736396A (en) * | 2014-01-10 | 2014-04-23 | 天津市环境保护科学研究院 | Composite cleaning agent of ozone catalysis inorganic membrane and preparation method of composite cleaning agent |
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Application publication date: 20121010 |