Critical flux and chemical cleaning-in-place during the long-term operation of a pilot-scale submerged membrane bioreactor for municipal wastewater treatment
The critical flux and chemical cleaning-in-place (CIP) in a long-term operation of a pilot-scale submerged membrane bioreactor for municipal wastewater treatment were investigated. Steady filtration under high flux (30 L/(m2 h)) was successfully achieved due to effective membrane fouling control by...
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| Veröffentlicht in: | Water research (Oxford) 2011-01, Vol.45 (2), p.863-871 |
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| creator | Wei, Chun-Hai Huang, Xia Ben Aim, Roger Yamamoto, Kazuo Amy, Gary |
| description | The critical flux and chemical cleaning-in-place (CIP) in a long-term operation of a pilot-scale submerged membrane bioreactor for municipal wastewater treatment were investigated. Steady filtration under high flux (30 L/(m2 h)) was successfully achieved due to effective membrane fouling control by sub-critical flux operation and chemical CIP with sodium hypochlorite (NaClO) in both trans-membrane pressure (TMP) controlling mode (cleaning with high concentration NaClO of 2000–3000 mg/L in terms of effective chorine was performed when TMP rose to 15 kPa) and time controlling mode (cleanings were performed weekly and monthly respectively with low concentration NaClO (500–1000 mg/L) and high concentration NaClO (3000 mg/L)). Microscopic analysis on membrane fibers before and after high concentration NaClO was also conducted. Images of scanning electron microscopy (SEM) and atomic force microscopy (AFM) showed that NaClO CIP could effectively remove gel layer, the dominant fouling under sub-critical flux operation. Porosity measurements indicated that NaClO CIP could partially remove pore blockage fouling. The analyses from fourier transform infrared spectrometry (FTIR) with attenuated total reflectance accessory (ATR) and energy dispersive spectrometer (EDS) demonstrated that protein-like macromolecular organics and inorganics were the important components of the fouling layer. The analysis of effluent quality before and after NaClO CIP showed no obvious effect on effluent quality. |
| doi_str_mv | 10.1016/j.watres.2010.09.021 |
| format | Article |
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Steady filtration under high flux (30 L/(m2 h)) was successfully achieved due to effective membrane fouling control by sub-critical flux operation and chemical CIP with sodium hypochlorite (NaClO) in both trans-membrane pressure (TMP) controlling mode (cleaning with high concentration NaClO of 2000–3000 mg/L in terms of effective chorine was performed when TMP rose to 15 kPa) and time controlling mode (cleanings were performed weekly and monthly respectively with low concentration NaClO (500–1000 mg/L) and high concentration NaClO (3000 mg/L)). Microscopic analysis on membrane fibers before and after high concentration NaClO was also conducted. Images of scanning electron microscopy (SEM) and atomic force microscopy (AFM) showed that NaClO CIP could effectively remove gel layer, the dominant fouling under sub-critical flux operation. Porosity measurements indicated that NaClO CIP could partially remove pore blockage fouling. The analyses from fourier transform infrared spectrometry (FTIR) with attenuated total reflectance accessory (ATR) and energy dispersive spectrometer (EDS) demonstrated that protein-like macromolecular organics and inorganics were the important components of the fouling layer. The analysis of effluent quality before and after NaClO CIP showed no obvious effect on effluent quality.</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/j.watres.2010.09.021</identifier><identifier>PMID: 20947121</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>atomic force microscopy ; Bioreactors ; Chemical cleaning-in-place ; Cleaning ; cleaning in place ; Critical flux ; energy ; Equipment Failure ; filtration ; Flux ; Fouling ; Fourier transform infrared spectroscopy ; gels ; Membrane fouling ; Membranes ; Membranes, Artificial ; Microscopy, Electron, Scanning ; Municipal wastewater ; Pilot Projects ; Porosity ; reflectance ; Scanning electron microscopy ; Sewage - analysis ; sodium hypochlorite ; Sodium Hypochlorite - chemistry ; Submerged membrane bioreactor ; Waste Disposal, Fluid - instrumentation ; Waste Disposal, Fluid - methods ; Wastewater treatment ; Water Purification - instrumentation ; Water Purification - methods</subject><ispartof>Water research (Oxford), 2011-01, Vol.45 (2), p.863-871</ispartof><rights>2010 Elsevier Ltd</rights><rights>Copyright © 2010 Elsevier Ltd. 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Steady filtration under high flux (30 L/(m2 h)) was successfully achieved due to effective membrane fouling control by sub-critical flux operation and chemical CIP with sodium hypochlorite (NaClO) in both trans-membrane pressure (TMP) controlling mode (cleaning with high concentration NaClO of 2000–3000 mg/L in terms of effective chorine was performed when TMP rose to 15 kPa) and time controlling mode (cleanings were performed weekly and monthly respectively with low concentration NaClO (500–1000 mg/L) and high concentration NaClO (3000 mg/L)). Microscopic analysis on membrane fibers before and after high concentration NaClO was also conducted. Images of scanning electron microscopy (SEM) and atomic force microscopy (AFM) showed that NaClO CIP could effectively remove gel layer, the dominant fouling under sub-critical flux operation. Porosity measurements indicated that NaClO CIP could partially remove pore blockage fouling. The analyses from fourier transform infrared spectrometry (FTIR) with attenuated total reflectance accessory (ATR) and energy dispersive spectrometer (EDS) demonstrated that protein-like macromolecular organics and inorganics were the important components of the fouling layer. The analysis of effluent quality before and after NaClO CIP showed no obvious effect on effluent quality.</description><subject>atomic force microscopy</subject><subject>Bioreactors</subject><subject>Chemical cleaning-in-place</subject><subject>Cleaning</subject><subject>cleaning in place</subject><subject>Critical flux</subject><subject>energy</subject><subject>Equipment Failure</subject><subject>filtration</subject><subject>Flux</subject><subject>Fouling</subject><subject>Fourier transform infrared spectroscopy</subject><subject>gels</subject><subject>Membrane fouling</subject><subject>Membranes</subject><subject>Membranes, Artificial</subject><subject>Microscopy, Electron, Scanning</subject><subject>Municipal wastewater</subject><subject>Pilot Projects</subject><subject>Porosity</subject><subject>reflectance</subject><subject>Scanning electron microscopy</subject><subject>Sewage - analysis</subject><subject>sodium hypochlorite</subject><subject>Sodium Hypochlorite - chemistry</subject><subject>Submerged membrane bioreactor</subject><subject>Waste Disposal, Fluid - instrumentation</subject><subject>Waste Disposal, Fluid - methods</subject><subject>Wastewater treatment</subject><subject>Water Purification - instrumentation</subject><subject>Water Purification - methods</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkstu1DAUhi0EokPhDRB4RzcZfE3sDRIaUUCqxIKythzneOpREgfbaeFheFc8TGFZFpbl48__ufxG6CUlW0po-_awvbMlQd4yUkNEbwmjj9CGqk43TAj1GG0IEbyhXIoz9CznAyGEMa6fojNGtOgooxv0a5dCCc6O2I_rD2znAbsbmP5E3Ah2DvO-CXOzjNYBHtZUz7jcAB5jvSiQJhwXSLaEOOPoscVLGGNpchUAnNd-grSHAU8w9cnOgPsQE1hXYsK-rmmdgwtLzXZnc4HaEiRc27Jlgrk8R0-8HTO8uN_P0fXlh-vdp-bqy8fPu_dXjZO0LY0jXKtWUj5QgJZoDdR3tPdaCktAKUmAKQ8KlOi1J571ijnZKyk59H7g5-jNSXZJ8fsKuZgpZAfjWAuOazaqJVxx1tH_k4wK1QnNK3nxIEm7llGquT6KihPqUsw5gTdLCpNNPw0l5ui1OZiT1-botSHaVK_rs1f3GY5THv49-mtuBV6fAG-jsfsUsvn2tSrI-hEokUpX4t2JgDrc2wDJZBdgdjCEBK6YIYaHa_gN4vnIyw</recordid><startdate>201101</startdate><enddate>201101</enddate><creator>Wei, Chun-Hai</creator><creator>Huang, Xia</creator><creator>Ben Aim, Roger</creator><creator>Yamamoto, Kazuo</creator><creator>Amy, Gary</creator><general>Elsevier Ltd</general><scope>FBQ</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>7SU</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>KR7</scope><scope>7X8</scope><scope>7QH</scope><scope>7QO</scope><scope>7ST</scope><scope>7UA</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>P64</scope><scope>SOI</scope></search><sort><creationdate>201101</creationdate><title>Critical flux and chemical cleaning-in-place during the long-term operation of a pilot-scale submerged membrane bioreactor for municipal wastewater treatment</title><author>Wei, Chun-Hai ; Huang, Xia ; Ben Aim, Roger ; Yamamoto, Kazuo ; Amy, Gary</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c516t-c03986513d1ee6099e1f71bf954a0e8850e28fe8e84b9f0f2b82c5b8553ebfd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>atomic force microscopy</topic><topic>Bioreactors</topic><topic>Chemical cleaning-in-place</topic><topic>Cleaning</topic><topic>cleaning in place</topic><topic>Critical flux</topic><topic>energy</topic><topic>Equipment Failure</topic><topic>filtration</topic><topic>Flux</topic><topic>Fouling</topic><topic>Fourier transform infrared spectroscopy</topic><topic>gels</topic><topic>Membrane fouling</topic><topic>Membranes</topic><topic>Membranes, Artificial</topic><topic>Microscopy, Electron, Scanning</topic><topic>Municipal wastewater</topic><topic>Pilot Projects</topic><topic>Porosity</topic><topic>reflectance</topic><topic>Scanning electron microscopy</topic><topic>Sewage - analysis</topic><topic>sodium hypochlorite</topic><topic>Sodium Hypochlorite - chemistry</topic><topic>Submerged membrane bioreactor</topic><topic>Waste Disposal, Fluid - instrumentation</topic><topic>Waste Disposal, Fluid - methods</topic><topic>Wastewater treatment</topic><topic>Water Purification - instrumentation</topic><topic>Water Purification - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wei, Chun-Hai</creatorcontrib><creatorcontrib>Huang, Xia</creatorcontrib><creatorcontrib>Ben Aim, Roger</creatorcontrib><creatorcontrib>Yamamoto, Kazuo</creatorcontrib><creatorcontrib>Amy, Gary</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environmental Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>MEDLINE - Academic</collection><collection>Aqualine</collection><collection>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</collection><collection>Water Resources Abstracts</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>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Water research (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wei, Chun-Hai</au><au>Huang, Xia</au><au>Ben Aim, Roger</au><au>Yamamoto, Kazuo</au><au>Amy, Gary</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Critical flux and chemical cleaning-in-place during the long-term operation of a pilot-scale submerged membrane bioreactor for municipal wastewater treatment</atitle><jtitle>Water research (Oxford)</jtitle><addtitle>Water Res</addtitle><date>2011-01</date><risdate>2011</risdate><volume>45</volume><issue>2</issue><spage>863</spage><epage>871</epage><pages>863-871</pages><issn>0043-1354</issn><eissn>1879-2448</eissn><abstract>The critical flux and chemical cleaning-in-place (CIP) in a long-term operation of a pilot-scale submerged membrane bioreactor for municipal wastewater treatment were investigated. Steady filtration under high flux (30 L/(m2 h)) was successfully achieved due to effective membrane fouling control by sub-critical flux operation and chemical CIP with sodium hypochlorite (NaClO) in both trans-membrane pressure (TMP) controlling mode (cleaning with high concentration NaClO of 2000–3000 mg/L in terms of effective chorine was performed when TMP rose to 15 kPa) and time controlling mode (cleanings were performed weekly and monthly respectively with low concentration NaClO (500–1000 mg/L) and high concentration NaClO (3000 mg/L)). Microscopic analysis on membrane fibers before and after high concentration NaClO was also conducted. Images of scanning electron microscopy (SEM) and atomic force microscopy (AFM) showed that NaClO CIP could effectively remove gel layer, the dominant fouling under sub-critical flux operation. Porosity measurements indicated that NaClO CIP could partially remove pore blockage fouling. The analyses from fourier transform infrared spectrometry (FTIR) with attenuated total reflectance accessory (ATR) and energy dispersive spectrometer (EDS) demonstrated that protein-like macromolecular organics and inorganics were the important components of the fouling layer. The analysis of effluent quality before and after NaClO CIP showed no obvious effect on effluent quality.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>20947121</pmid><doi>10.1016/j.watres.2010.09.021</doi><tpages>9</tpages></addata></record> |
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| subjects | atomic force microscopy Bioreactors Chemical cleaning-in-place Cleaning cleaning in place Critical flux energy Equipment Failure filtration Flux Fouling Fourier transform infrared spectroscopy gels Membrane fouling Membranes Membranes, Artificial Microscopy, Electron, Scanning Municipal wastewater Pilot Projects Porosity reflectance Scanning electron microscopy Sewage - analysis sodium hypochlorite Sodium Hypochlorite - chemistry Submerged membrane bioreactor Waste Disposal, Fluid - instrumentation Waste Disposal, Fluid - methods Wastewater treatment Water Purification - instrumentation Water Purification - methods |
| title | Critical flux and chemical cleaning-in-place during the long-term operation of a pilot-scale submerged membrane bioreactor for municipal wastewater treatment |
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