Towards a better hydraulic cleaning strategy for ultrafiltration membrane fouling by humic acid： Effect of backwash water composition
As a routine measurement to alleviate membrane fouling, hydraulic cleaning is of great significance for the steady operation of ultrafiltration（UF） systems in water treatment processes. In this work, a comparative study was performed to investigate the effects of the composition of backwash water on...
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| Veröffentlicht in: | Journal of environmental sciences (China) 2016-05, Vol.43 (5), p.177-186 |
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| creator | Chang, Haiqing Liang, Heng Qu, Fangshu Ma, Jun Ren, Nanqi Li, Guibai |
| description | As a routine measurement to alleviate membrane fouling, hydraulic cleaning is of great significance for the steady operation of ultrafiltration（UF） systems in water treatment processes. In this work, a comparative study was performed to investigate the effects of the composition of backwash water on the hydraulic cleaning performance of UF membranes fouled by humic acid（HA）. Various types of backwash water, including UF permeate, Milli-Q water, Na Cl solution, CaCl_2 solution and HA solution, were compared in terms of hydraulically irreversible fouling index, total surface tension and residual HA. The results indicated that Milli-Q water backwash was superior to UF permeate backwash in cleaning HA-fouled membranes, and the backwash water containing Na＋or HA outperformed Milli-Q water in alleviating HA fouling. On the contrary, the presence of Ca~（2＋） in backwash water significantly decreased the backwash efficiency. Moreover, Ca~（2＋） played an important role in foulant removal, and the residual HA content closely related to the residual Ca~（2＋） content.Mechanism analysis suggested that the backwash process may involve fouling layer swelling, ion exchange, electric double layer release and competitive complexation. Ion exchange and competitive complexation played significant roles in the efficient hydraulic cleaning associated with Na＋and HA, respectively. |
| doi_str_mv | 10.1016/j.jes.2015.09.005 |
| format | Article |
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In this work, a comparative study was performed to investigate the effects of the composition of backwash water on the hydraulic cleaning performance of UF membranes fouled by humic acid（HA）. Various types of backwash water, including UF permeate, Milli-Q water, Na Cl solution, CaCl_2 solution and HA solution, were compared in terms of hydraulically irreversible fouling index, total surface tension and residual HA. The results indicated that Milli-Q water backwash was superior to UF permeate backwash in cleaning HA-fouled membranes, and the backwash water containing Na＋or HA outperformed Milli-Q water in alleviating HA fouling. On the contrary, the presence of Ca~（2＋） in backwash water significantly decreased the backwash efficiency. Moreover, Ca~（2＋） played an important role in foulant removal, and the residual HA content closely related to the residual Ca~（2＋） content.Mechanism analysis suggested that the backwash process may involve fouling layer swelling, ion exchange, electric double layer release and competitive complexation. Ion exchange and competitive complexation played significant roles in the efficient hydraulic cleaning associated with Na＋and HA, respectively.</description><identifier>ISSN: 1001-0742</identifier><identifier>EISSN: 1878-7320</identifier><identifier>DOI: 10.1016/j.jes.2015.09.005</identifier><identifier>PMID: 27155423</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Backwash water composition ; Humic acid ; Humic Substances ; Hydraulic cleaning ; Membrane fouling ; Membranes, Artificial ; Ultrafiltration ; Ultrafiltration - methods ; Water Purification - methods ; 反冲洗水 ; 水处理过程 ; 液压 ; 清洗性能 ; 离子交换 ; 组成 ; 超滤膜 ; 酸污染</subject><ispartof>Journal of environmental sciences (China), 2016-05, Vol.43 (5), p.177-186</ispartof><rights>2015</rights><rights>Copyright © 2015. Published by Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c413t-19d42035b8d2309f4a566e33acae88c8ff1cdc1e561417a0a76a826392ac61d63</citedby><cites>FETCH-LOGICAL-c413t-19d42035b8d2309f4a566e33acae88c8ff1cdc1e561417a0a76a826392ac61d63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85265X/85265X.jpg</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jes.2015.09.005$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27922,27923,45993</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27155423$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chang, Haiqing</creatorcontrib><creatorcontrib>Liang, Heng</creatorcontrib><creatorcontrib>Qu, Fangshu</creatorcontrib><creatorcontrib>Ma, Jun</creatorcontrib><creatorcontrib>Ren, Nanqi</creatorcontrib><creatorcontrib>Li, Guibai</creatorcontrib><title>Towards a better hydraulic cleaning strategy for ultrafiltration membrane fouling by humic acid： Effect of backwash water composition</title><title>Journal of environmental sciences (China)</title><addtitle>Journal of Environmental Sciences</addtitle><description>As a routine measurement to alleviate membrane fouling, hydraulic cleaning is of great significance for the steady operation of ultrafiltration（UF） systems in water treatment processes. In this work, a comparative study was performed to investigate the effects of the composition of backwash water on the hydraulic cleaning performance of UF membranes fouled by humic acid（HA）. Various types of backwash water, including UF permeate, Milli-Q water, Na Cl solution, CaCl_2 solution and HA solution, were compared in terms of hydraulically irreversible fouling index, total surface tension and residual HA. The results indicated that Milli-Q water backwash was superior to UF permeate backwash in cleaning HA-fouled membranes, and the backwash water containing Na＋or HA outperformed Milli-Q water in alleviating HA fouling. On the contrary, the presence of Ca~（2＋） in backwash water significantly decreased the backwash efficiency. Moreover, Ca~（2＋） played an important role in foulant removal, and the residual HA content closely related to the residual Ca~（2＋） content.Mechanism analysis suggested that the backwash process may involve fouling layer swelling, ion exchange, electric double layer release and competitive complexation. Ion exchange and competitive complexation played significant roles in the efficient hydraulic cleaning associated with Na＋and HA, respectively.</description><subject>Backwash water composition</subject><subject>Humic acid</subject><subject>Humic Substances</subject><subject>Hydraulic cleaning</subject><subject>Membrane fouling</subject><subject>Membranes, Artificial</subject><subject>Ultrafiltration</subject><subject>Ultrafiltration - methods</subject><subject>Water Purification - methods</subject><subject>反冲洗水</subject><subject>水处理过程</subject><subject>液压</subject><subject>清洗性能</subject><subject>离子交换</subject><subject>组成</subject><subject>超滤膜</subject><subject>酸污染</subject><issn>1001-0742</issn><issn>1878-7320</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFUUuO1DAUjBCIGQYOwAZZrNgkPMeJ7YgVGg0faSQ2w9py7OduN0ncYye0-gTcgbNwJ66Ao25mCV7Yz3JVPb-qonhJoaJA-dtdtcNU1UDbCroKoH1UXFIpZClYDY9zDUBLEE19UTxLaQcATQvt0-KiFrRtm5pdFj_uwkFHm4gmPc4zRrI92qiXwRtiBtSTnzYkzVHPuDkSFyJZhnxzft1nHyYy4thHPWF-zKyM7o9ku4yZr423v3_9JDfOoZlJcKTX5ttBpy056LWVCeM-JL_KPC-eOD0kfHE-r4qvH27urj-Vt18-fr5-f1uahrK5pJ1tamBtL23NoHONbjlHxrTRKKWRzlFjDcWW04YKDVpwLWvOulobTi1nV8Wbk-4-hvsF06xGnwwOQ54gLElRCZJ3ecn_Q4UUgmcrV1V6gpoYUoro1D76UcejoqDWqNRO5ajUGpWCTuWoMufVWX7pR7QPjL_ZZMC7EwCzH989RpWMx8mg9TH7qWzw_5R_ff7SNkyb-xzMQwfOZScYyyP-AdnWsu4</recordid><startdate>20160501</startdate><enddate>20160501</enddate><creator>Chang, Haiqing</creator><creator>Liang, Heng</creator><creator>Qu, Fangshu</creator><creator>Ma, Jun</creator><creator>Ren, Nanqi</creator><creator>Li, Guibai</creator><general>Elsevier B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7QH</scope><scope>7ST</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>SOI</scope></search><sort><creationdate>20160501</creationdate><title>Towards a better hydraulic cleaning strategy for ultrafiltration membrane fouling by humic acid： Effect of backwash water composition</title><author>Chang, Haiqing ; Liang, Heng ; Qu, Fangshu ; Ma, Jun ; Ren, Nanqi ; Li, Guibai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c413t-19d42035b8d2309f4a566e33acae88c8ff1cdc1e561417a0a76a826392ac61d63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Backwash water composition</topic><topic>Humic acid</topic><topic>Humic Substances</topic><topic>Hydraulic cleaning</topic><topic>Membrane fouling</topic><topic>Membranes, Artificial</topic><topic>Ultrafiltration</topic><topic>Ultrafiltration - methods</topic><topic>Water Purification - methods</topic><topic>反冲洗水</topic><topic>水处理过程</topic><topic>液压</topic><topic>清洗性能</topic><topic>离子交换</topic><topic>组成</topic><topic>超滤膜</topic><topic>酸污染</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chang, Haiqing</creatorcontrib><creatorcontrib>Liang, Heng</creatorcontrib><creatorcontrib>Qu, Fangshu</creatorcontrib><creatorcontrib>Ma, Jun</creatorcontrib><creatorcontrib>Ren, Nanqi</creatorcontrib><creatorcontrib>Li, Guibai</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><jtitle>Journal of environmental sciences (China)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chang, Haiqing</au><au>Liang, Heng</au><au>Qu, Fangshu</au><au>Ma, Jun</au><au>Ren, Nanqi</au><au>Li, Guibai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Towards a better hydraulic cleaning strategy for ultrafiltration membrane fouling by humic acid： Effect of backwash water composition</atitle><jtitle>Journal of environmental sciences (China)</jtitle><addtitle>Journal of Environmental Sciences</addtitle><date>2016-05-01</date><risdate>2016</risdate><volume>43</volume><issue>5</issue><spage>177</spage><epage>186</epage><pages>177-186</pages><issn>1001-0742</issn><eissn>1878-7320</eissn><abstract>As a routine measurement to alleviate membrane fouling, hydraulic cleaning is of great significance for the steady operation of ultrafiltration（UF） systems in water treatment processes. In this work, a comparative study was performed to investigate the effects of the composition of backwash water on the hydraulic cleaning performance of UF membranes fouled by humic acid（HA）. Various types of backwash water, including UF permeate, Milli-Q water, Na Cl solution, CaCl_2 solution and HA solution, were compared in terms of hydraulically irreversible fouling index, total surface tension and residual HA. The results indicated that Milli-Q water backwash was superior to UF permeate backwash in cleaning HA-fouled membranes, and the backwash water containing Na＋or HA outperformed Milli-Q water in alleviating HA fouling. On the contrary, the presence of Ca~（2＋） in backwash water significantly decreased the backwash efficiency. Moreover, Ca~（2＋） played an important role in foulant removal, and the residual HA content closely related to the residual Ca~（2＋） content.Mechanism analysis suggested that the backwash process may involve fouling layer swelling, ion exchange, electric double layer release and competitive complexation. Ion exchange and competitive complexation played significant roles in the efficient hydraulic cleaning associated with Na＋and HA, respectively.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>27155423</pmid><doi>10.1016/j.jes.2015.09.005</doi><tpages>10</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings; MEDLINE; Alma/SFX Local Collection |
| subjects | Backwash water composition Humic acid Humic Substances Hydraulic cleaning Membrane fouling Membranes, Artificial Ultrafiltration Ultrafiltration - methods Water Purification - methods 反冲洗水 水处理过程 液压 清洗性能 离子交换 组成 超滤膜 酸污染 |
| title | Towards a better hydraulic cleaning strategy for ultrafiltration membrane fouling by humic acid： Effect of backwash water composition |
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