技术领域technical field
本发明涉及一种膜的清洗方法，特别是涉及可用来作为清洗含有微小纤维的膜的清洗方法。The present invention relates to a membrane cleaning method, in particular to a membrane cleaning method that can be used to clean microfiber-containing membranes.
背景技术Background technique
已知的用膜过滤液体后，膜通常会受污染，清洗膜的方法大多数采用碱洗或酸洗，比如用纯碱、次氯酸钠、硝酸等。但对于过滤一些含有微小纤维的料液时，用常规清洗方法无法使膜的通量获得100％恢复，这样膜很难用于相关领域。比如，蔗汁里由于含有甘蔗的微小纤维，用膜过滤受污染后采用双碱(纯碱+次氯酸钠)及酸(硝酸)清洗均无法100％恢复膜通量。After the known membrane is used to filter liquid, the membrane will usually be polluted, and most of the methods for cleaning the membrane are alkali washing or pickling, such as soda ash, sodium hypochlorite, nitric acid, etc. But when filtering some feed liquids containing tiny fibers, the flux of the membrane cannot be recovered 100% by conventional cleaning methods, so the membrane is difficult to be used in related fields. For example, because sugarcane juice contains tiny fibers of sugarcane, cleaning with double alkali (soda ash + sodium hypochlorite) and acid (nitric acid) cannot recover the membrane flux 100% after being polluted by membrane filtration.
发明内容Contents of the invention
本发明要解决的技术问题是提供一种膜的清洗方法。The technical problem to be solved by the present invention is to provide a membrane cleaning method.
作为实现本发明基本构思的第一种技术方案，将膜用含有双碱或酸的溶液清洗前，先用含有枯草芽孢菌(bacillus subtilis)的溶液浸泡膜至少12小时。As the first technical solution to realize the basic idea of the present invention, before the membrane is cleaned with a solution containing dibasic or acid, the membrane is first soaked with a solution containing bacillus subtilis for at least 12 hours.
作为实现本发明基本构思的第二种技术方案，将膜用含有枯草芽孢菌(bacillus subtilis)的溶液浸泡至少12小时后，再用含有重量百分比为2‰～1％的氢氧化钠和重量百分比为2‰～1％的次氯酸钠的溶液清洗20～40分钟。As the second technical solution to realize the basic idea of the present invention, the film is soaked in a solution containing bacillus subtilis for at least 12 hours, and then soaked with sodium hydroxide containing 2‰～1% by weight and Wash with 2‰～1% sodium hypochlorite solution for 20～40 minutes.
本发明的有益效果是：有效地分解污染膜的微小纤维，提高膜的通量，延长了膜的寿命。The beneficial effects of the invention are: effectively decomposing the tiny fibers polluting the membrane, improving the flux of the membrane and prolonging the life of the membrane.
具体实施方式Detailed ways
以下所述实施例详细地说明了本发明。The examples described below illustrate the present invention in detail.
实施例1：Example 1:
在容器中加入枯草芽孢菌与水混合，枯草芽孢菌与水的重量比为0.5∶1，把膜放入枯草芽孢菌与水混合后的溶液中浸泡膜至少12小时，用重量百分比为2‰的氢氧化钠和重量百分比为2‰的次氯酸钠与水混合，将膜放入氢氧化钠和次氯酸钠与水混合后的溶液中清洗40分钟，恢复100％膜通量。Put Bacillus subtilis in the container and mix it with water, the weight ratio of Bacillus subtilis and water is 0.5:1, put the film into the solution after mixing Bacillus subtilis and water to soak the film for at least 12 hours, and use a weight percentage of 2‰ Sodium hydroxide and sodium hypochlorite with a weight percentage of 2‰ were mixed with water, and the membrane was washed in the solution of sodium hydroxide and sodium hypochlorite mixed with water for 40 minutes to restore 100% membrane flux.
实施例2：Example 2:
在容器中加入枯草芽孢菌与水混合，枯草芽孢菌与水的重量比为0.25∶1，把膜放入枯草芽孢菌与水混合后的溶液中浸泡膜至少12小时，用重量百分比为4‰的氢氧化钠和重量百分比为4‰的次氯酸钠与水混合，将膜放入氢氧化钠和次氯酸钠与水混合后的溶液中清洗20分钟，恢复100％膜通量。Put Bacillus subtilis in the container and mix it with water, the weight ratio of Bacillus subtilis and water is 0.25:1, put the film into the solution after mixing Bacillus subtilis and water to soak the film for at least 12 hours, and use a weight percentage of 4‰ Sodium hydroxide and sodium hypochlorite with a weight percentage of 4‰ are mixed with water, and the membrane is washed in the solution of sodium hydroxide and sodium hypochlorite mixed with water for 20 minutes to restore 100% membrane flux.
实施例3：Example 3:
在容器中加入枯草芽孢菌与水混合，枯草芽孢菌与水的重量比为2/106∶1，把膜放入枯草芽孢菌与水混合后的溶液中浸泡膜至少12小时，用重量百分比为1％的氢氧化钠和重量百分比为1％的次氯酸钠与水混合，将膜放入氢氧化钠和次氯酸钠与水混合后的溶液中清洗30分钟，恢复100％膜通量。Add Bacillus subtilis in the container and mix with water, the weight ratio of Bacillus subtilis and water is 2/106 : 1, put the membrane into the solution after mixing Bacillus subtilis and water and soak the membrane for at least 12 hours, use weight percentage Mix 1% sodium hydroxide and 1% sodium hypochlorite by weight with water, put the membrane into the solution of sodium hydroxide and sodium hypochlorite mixed with water and wash for 30 minutes to restore 100% membrane flux.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910114006.0ACN101559429B (en) | 2009-04-23 | 2009-04-23 | Method of cleaning membrane |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910114006.0ACN101559429B (en) | 2009-04-23 | 2009-04-23 | Method of cleaning membrane |
| Publication Number | Publication Date |
|---|---|
| CN101559429Atrue CN101559429A (en) | 2009-10-21 |
| CN101559429B CN101559429B (en) | 2014-06-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910114006.0AExpired - Fee RelatedCN101559429B (en) | 2009-04-23 | 2009-04-23 | Method of cleaning membrane |
| Country | Link |
|---|---|
| CN (1) | CN101559429B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011059963A1 (en)* | 2009-11-10 | 2011-05-19 | Novozymes Biologicals, Inc. | Methods, compositions and systems for controlling fouling of a membrane |
| CN102392384A (en)* | 2011-09-02 | 2012-03-28 | 林志义 | Paster solvent precipitant |
| CN107174959A (en)* | 2017-04-24 | 2017-09-19 | 如东南天农科化工有限公司 | A kind of method for rapidly and efficiently cleaning UF films |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004230245A (en)* | 2003-01-29 | 2004-08-19 | Ebara Corp | Permeation membrane detergent and washing method for treating water |
| CN1546400A (en)* | 2003-12-01 | 2004-11-17 | 华中农业大学 | Decomposed fermentation agent for industrial organic waste liquid and residue treatment and utilization and production method thereof |
| CN101284213A (en)* | 2008-05-30 | 2008-10-15 | 北京汉青天朗水处理科技有限公司 | Method and device for cleaning membrane separation equipment |
| CN101353672A (en)* | 2007-04-26 | 2009-01-28 | 赢创德固赛有限责任公司 | Process for the enzymatic hydrolysis of chemically pretreated lignocellulose |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004230245A (en)* | 2003-01-29 | 2004-08-19 | Ebara Corp | Permeation membrane detergent and washing method for treating water |
| CN1546400A (en)* | 2003-12-01 | 2004-11-17 | 华中农业大学 | Decomposed fermentation agent for industrial organic waste liquid and residue treatment and utilization and production method thereof |
| CN101353672A (en)* | 2007-04-26 | 2009-01-28 | 赢创德固赛有限责任公司 | Process for the enzymatic hydrolysis of chemically pretreated lignocellulose |
| CN101284213A (en)* | 2008-05-30 | 2008-10-15 | 北京汉青天朗水处理科技有限公司 | Method and device for cleaning membrane separation equipment |
| Title |
|---|
| 张丽青 等: "纤维素降解细菌的筛选及其产酶条件优化", 《环境科学与管理》* |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011059963A1 (en)* | 2009-11-10 | 2011-05-19 | Novozymes Biologicals, Inc. | Methods, compositions and systems for controlling fouling of a membrane |
| CN102712512A (en)* | 2009-11-10 | 2012-10-03 | 诺维信生物股份有限公司 | Methods, compositions and systems for controlling membrane fouling |
| JP2013510710A (en)* | 2009-11-10 | 2013-03-28 | ノボザイムス バイオロジカルズ，インコーポレイティド | Method, composition and apparatus for controlling membrane fouling |
| CN105384239A (en)* | 2009-11-10 | 2016-03-09 | 诺维信生物股份有限公司 | Methods, compositions and systems for controlling fouling of a membrane |
| JP2016135488A (en)* | 2009-11-10 | 2016-07-28 | ノボザイムス バイオロジカルズ，インコーポレイティド | Methods, compositions and systems for controlling fouling of membrane |
| JP2018089627A (en)* | 2009-11-10 | 2018-06-14 | ノボザイムス バイオロジカルズ，インコーポレイティド | Method, composition and apparatus for controlling membrane fouling |
| US10207943B2 (en) | 2009-11-10 | 2019-02-19 | Novozymes Biologicals, Inc. | Methods, compositions and systems for controlling fouling of a membrane |
| CN105384239B (en)* | 2009-11-10 | 2019-05-03 | 诺维信生物股份有限公司 | For controlling method, composition and the system of film fouling |
| CN102392384A (en)* | 2011-09-02 | 2012-03-28 | 林志义 | Paster solvent precipitant |
| CN107174959A (en)* | 2017-04-24 | 2017-09-19 | 如东南天农科化工有限公司 | A kind of method for rapidly and efficiently cleaning UF films |
| Publication number | Publication date |
|---|---|
| CN101559429B (en) | 2014-06-25 |
| Publication | Publication Date | Title |
|---|---|---|
| CN100404657C (en) | A kind of ceramic membrane cleaning agent and preparation method thereof | |
| JP5421768B2 (en) | Cleaning agent for separation membrane, method for producing the cleaning agent, and cleaning method | |
| CN101721916B (en) | Chemical cleaning method of reverse osmosis membrane | |
| TW201410617A (en) | Microbubble electrolysis water generating device and method for producing microbubble electrolyzed water | |
| JPWO2013179775A1 (en) | Permeation membrane cleaner and cleaning method | |
| CN104741006A (en) | Reverse osmosis membrane detergent | |
| CN100431675C (en) | Scavenger for ultrafiltering ceramic membrane and its prepn and application | |
| CN106512744A (en) | Method for cleaning reverse osmosis membrane element | |
| JP2017113729A (en) | Membrane cleaning agent, membrane cleaning solution and method for cleaning membrane | |
| CN101559429B (en) | Method of cleaning membrane | |
| KR101078046B1 (en) | Reverse Osmosis Membrane Cleaner and Continuous Cleaning Method Using the Same | |
| CN105176714B (en) | A kind of pmida canvas press cloth cleaning method | |
| CN100450596C (en) | Micro-filtering or super-filtering film regenerating agent and preparing method | |
| CN108854560A (en) | A kind of RO cleaning agents of membrane | |
| JP2013248547A (en) | Method for washing reverse osmosis membrane, and washing solution | |
| CN111440679A (en) | Cleaning agent for cleaning high sulfate scale and preparation method and application thereof | |
| CN110248723B (en) | Cleaning liquid for water contact member, cleaning agent and cleaning method | |
| CN102719841B (en) | Tank immersion ultrasonic cleaning agent for aluminum foil expanded mesh of aircraft filter and preparation method thereof | |
| US20060043028A1 (en) | Process for in-site cleaning of drinking water filtration media | |
| CN106315709B (en) | A kind of purification method and application of pulping alkali recovery white liquor | |
| CN107096388A (en) | A kind of forward osmosis membrane cleaning method | |
| CN115608159A (en) | Cleaning method and cleaning system for hot film coupling type seawater desalination filter membrane | |
| CN107596922A (en) | A kind of combined chemical cleaning method removed fouling membrane and control accessory substance to generate | |
| KR102791676B1 (en) | Scale Remover of Reverse Osmosis Filter and Method for Cleaning Reverse Osmosis Filter Using the Same | |
| CN103768954A (en) | Ultrafiltration antiosmosis technology chemical cleaning method |
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | Application publication date:20091021 Assignee:Guangxi Yemao Electromechanical Automation Co.,Ltd. Assignor:Lin Xingsheng Contract record no.:2014450000058 Denomination of invention:Method of cleaning membrane Granted publication date:20140625 License type:Exclusive License Record date:20140723 | |
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right | Effective date of registration:20160108 Address after:CHINO industrial building 62 No. 530007 the Guangxi Zhuang Autonomous Region XiXiangTang Nanning Gaoxin Road No. 401-408 Patentee after:Guangxi Yemao Electromechanical Automation Co.,Ltd. Address before:530001 the Guangxi Zhuang Autonomous Region Nanning XiXiangTang District, North Lake Road No. 22 Patentee before:Lin Xingsheng | |
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20140625 | |
| CF01 | Termination of patent right due to non-payment of annual fee |