WASHING METHOD OF REVERSE OSMOSIS MEMBRANE MODULE
PROBLEM TO BE SOLVED: To provide a washing method of a reverse osmosis membrane module capable of shortening the washing time of the reverse osmosis membrane module and reducing the additional amount of a medicine when a biological substance adheres to a membrane surface.SOLUTION: A water treatment...
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| creator | MATSUTOMO SHINJI WATANABE HAYATO IWAMOTO KENSUKE |
| description | PROBLEM TO BE SOLVED: To provide a washing method of a reverse osmosis membrane module capable of shortening the washing time of the reverse osmosis membrane module and reducing the additional amount of a medicine when a biological substance adheres to a membrane surface.SOLUTION: A water treatment system 1 which is provided with a reverse osmosis membrane module 5 separating supply water W1 to permeated water W2 and concentrated water W3 and which is a washing method of the reverse osmosis membrane module 5 performed when the reverse osmosis membrane module 5 has a biological contamination tendency includes: a washing auxiliary agent addition step adding a washing auxiliary agent to the reverse osmosis membrane module 5; and an osmotic pressure adjustment step adjusting osmotic pressure in the reverse osmosis membrane module 5 so as to transfer the permeated water W2 from the secondary side of a membrane in the reverse osmosis membrane module 5 toward a primary side after the washing auxiliary agent addition step.SELECTED DRAWING: Figure 6
【課題】生物物質が膜面に付着した場合に、逆浸透膜モジュールの洗浄時間を短縮できると共に、薬剤の添加量を低減できる逆浸透膜モジュールの洗浄方法を提供すること。【解決手段】供給水Ｗ１を透過水Ｗ２と濃縮水Ｗ３とに分離する逆浸透膜モジュール５を備える水処理システム１において、逆浸透膜モジュール５について生物汚染傾向である場合に行われる逆浸透膜モジュール５の洗浄方法であって、逆浸透膜モジュール５に洗浄補助剤を添加する洗浄補助剤添加工程と、洗浄補助剤添加工程の後に、逆浸透膜モジュール５の膜の二次側から一次側に向けて透過水Ｗ２の移動が生じるように、逆浸透膜モジュール５の浸透圧を調整する浸透圧調整工程と、を含む。【選択図】図６ |
| format | Patent |
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【課題】生物物質が膜面に付着した場合に、逆浸透膜モジュールの洗浄時間を短縮できると共に、薬剤の添加量を低減できる逆浸透膜モジュールの洗浄方法を提供すること。【解決手段】供給水Ｗ１を透過水Ｗ２と濃縮水Ｗ３とに分離する逆浸透膜モジュール５を備える水処理システム１において、逆浸透膜モジュール５について生物汚染傾向である場合に行われる逆浸透膜モジュール５の洗浄方法であって、逆浸透膜モジュール５に洗浄補助剤を添加する洗浄補助剤添加工程と、洗浄補助剤添加工程の後に、逆浸透膜モジュール５の膜の二次側から一次側に向けて透過水Ｗ２の移動が生じるように、逆浸透膜モジュール５の浸透圧を調整する浸透圧調整工程と、を含む。【選択図】図６</description><language>eng ; jpn</language><subject>PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; TRANSPORTING</subject><creationdate>2018</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20181004&DB=EPODOC&CC=JP&NR=2018153790A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20181004&DB=EPODOC&CC=JP&NR=2018153790A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MATSUTOMO SHINJI</creatorcontrib><creatorcontrib>WATANABE HAYATO</creatorcontrib><creatorcontrib>IWAMOTO KENSUKE</creatorcontrib><title>WASHING METHOD OF REVERSE OSMOSIS MEMBRANE MODULE</title><description>PROBLEM TO BE SOLVED: To provide a washing method of a reverse osmosis membrane module capable of shortening the washing time of the reverse osmosis membrane module and reducing the additional amount of a medicine when a biological substance adheres to a membrane surface.SOLUTION: A water treatment system 1 which is provided with a reverse osmosis membrane module 5 separating supply water W1 to permeated water W2 and concentrated water W3 and which is a washing method of the reverse osmosis membrane module 5 performed when the reverse osmosis membrane module 5 has a biological contamination tendency includes: a washing auxiliary agent addition step adding a washing auxiliary agent to the reverse osmosis membrane module 5; and an osmotic pressure adjustment step adjusting osmotic pressure in the reverse osmosis membrane module 5 so as to transfer the permeated water W2 from the secondary side of a membrane in the reverse osmosis membrane module 5 toward a primary side after the washing auxiliary agent addition step.SELECTED DRAWING: Figure 6
【課題】生物物質が膜面に付着した場合に、逆浸透膜モジュールの洗浄時間を短縮できると共に、薬剤の添加量を低減できる逆浸透膜モジュールの洗浄方法を提供すること。【解決手段】供給水Ｗ１を透過水Ｗ２と濃縮水Ｗ３とに分離する逆浸透膜モジュール５を備える水処理システム１において、逆浸透膜モジュール５について生物汚染傾向である場合に行われる逆浸透膜モジュール５の洗浄方法であって、逆浸透膜モジュール５に洗浄補助剤を添加する洗浄補助剤添加工程と、洗浄補助剤添加工程の後に、逆浸透膜モジュール５の膜の二次側から一次側に向けて透過水Ｗ２の移動が生じるように、逆浸透膜モジュール５の浸透圧を調整する浸透圧調整工程と、を含む。【選択図】図６</description><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>SEPARATION</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAMdwz28PRzV_B1DfHwd1Hwd1MIcg1zDQp2VfAP9vUP9gwGyvg6BTn6uSr4-ruE-rjyMLCmJeYUp_JCaW4GJTfXEGcP3dSC_PjU4oLE5NS81JJ4rwAjA0MLQ1Njc0sDR2OiFAEApHYnEQ</recordid><startdate>20181004</startdate><enddate>20181004</enddate><creator>MATSUTOMO SHINJI</creator><creator>WATANABE HAYATO</creator><creator>IWAMOTO KENSUKE</creator><scope>EVB</scope></search><sort><creationdate>20181004</creationdate><title>WASHING METHOD OF REVERSE OSMOSIS MEMBRANE MODULE</title><author>MATSUTOMO SHINJI ; WATANABE HAYATO ; IWAMOTO KENSUKE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2018153790A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2018</creationdate><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>SEPARATION</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>MATSUTOMO SHINJI</creatorcontrib><creatorcontrib>WATANABE HAYATO</creatorcontrib><creatorcontrib>IWAMOTO KENSUKE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MATSUTOMO SHINJI</au><au>WATANABE HAYATO</au><au>IWAMOTO KENSUKE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>WASHING METHOD OF REVERSE OSMOSIS MEMBRANE MODULE</title><date>2018-10-04</date><risdate>2018</risdate><abstract>PROBLEM TO BE SOLVED: To provide a washing method of a reverse osmosis membrane module capable of shortening the washing time of the reverse osmosis membrane module and reducing the additional amount of a medicine when a biological substance adheres to a membrane surface.SOLUTION: A water treatment system 1 which is provided with a reverse osmosis membrane module 5 separating supply water W1 to permeated water W2 and concentrated water W3 and which is a washing method of the reverse osmosis membrane module 5 performed when the reverse osmosis membrane module 5 has a biological contamination tendency includes: a washing auxiliary agent addition step adding a washing auxiliary agent to the reverse osmosis membrane module 5; and an osmotic pressure adjustment step adjusting osmotic pressure in the reverse osmosis membrane module 5 so as to transfer the permeated water W2 from the secondary side of a membrane in the reverse osmosis membrane module 5 toward a primary side after the washing auxiliary agent addition step.SELECTED DRAWING: Figure 6
【課題】生物物質が膜面に付着した場合に、逆浸透膜モジュールの洗浄時間を短縮できると共に、薬剤の添加量を低減できる逆浸透膜モジュールの洗浄方法を提供すること。【解決手段】供給水Ｗ１を透過水Ｗ２と濃縮水Ｗ３とに分離する逆浸透膜モジュール５を備える水処理システム１において、逆浸透膜モジュール５について生物汚染傾向である場合に行われる逆浸透膜モジュール５の洗浄方法であって、逆浸透膜モジュール５に洗浄補助剤を添加する洗浄補助剤添加工程と、洗浄補助剤添加工程の後に、逆浸透膜モジュール５の膜の二次側から一次側に向けて透過水Ｗ２の移動が生じるように、逆浸透膜モジュール５の浸透圧を調整する浸透圧調整工程と、を含む。【選択図】図６</abstract><oa>free_for_read</oa></addata></record> |
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| title | WASHING METHOD OF REVERSE OSMOSIS MEMBRANE MODULE |
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