Involvement of Acinetobacter sp. in the floc-formation in activated sludge process
► We study coaggregation of Acinetobacter johnsonii S35 isolate with sewage bacteria. ► A. johnsonii S35 had a high affinity for many of sewage bacteria and activated sludge flocs. ► A. johnsonii S35 cells and sewage activated sludge showed a hydrophobic character. ► Hydrophobic interaction might pl...
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| Veröffentlicht in: | Journal of biotechnology 2012-02, Vol.157 (4), p.505-511 |
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| creator | Phuong, Kimchhayarasy Hanazaki, Shohei Kakii, Kazuo Nikata, Toshiyuki |
| description | ► We study coaggregation of Acinetobacter johnsonii S35 isolate with sewage bacteria. ► A. johnsonii S35 had a high affinity for many of sewage bacteria and activated sludge flocs. ► A. johnsonii S35 cells and sewage activated sludge showed a hydrophobic character. ► Hydrophobic interaction might play an important role in the coaggregation. ► Acinetobacter spp. were derived from the influent.
The coaggregation behavior of Acinetobacter johnsonii S35 isolate with sewage bacteria was assessed by a spectrophotometric assay using different samples from a municipal wastewater treatment plant and a community plant. A. johnsonii S35 coaggregated well with other free bacteria and microflocs at the mixing ratios of 0.2:1–0.6:1 of A. johnsonii S35 and sewage samples. In addition, the size of coaggregates became larger (100μm or more) under the same conditions. A. johnsonii S35 cells were highly adsorbed (adsorption=93–99%) onto sludge samples. Microbial adhesion to hydrocarbon (MATH) test and adsorption to octyl-Sepharose CL-4B showed that A. johnsonii S35 cells and sludge samples had a hydrophobic character. The population of Acinetobacter spp. in sewage treatment plants was 2–7% and its role in bioflocculation was discussed. The present study revealed that A. johnsonii S35 isolate can play as a bridging organism and contribute in floc-formation in activated sludge process. |
| doi_str_mv | 10.1016/j.jbiotec.2011.09.024 |
| format | Article |
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The coaggregation behavior of Acinetobacter johnsonii S35 isolate with sewage bacteria was assessed by a spectrophotometric assay using different samples from a municipal wastewater treatment plant and a community plant. A. johnsonii S35 coaggregated well with other free bacteria and microflocs at the mixing ratios of 0.2:1–0.6:1 of A. johnsonii S35 and sewage samples. In addition, the size of coaggregates became larger (100μm or more) under the same conditions. A. johnsonii S35 cells were highly adsorbed (adsorption=93–99%) onto sludge samples. Microbial adhesion to hydrocarbon (MATH) test and adsorption to octyl-Sepharose CL-4B showed that A. johnsonii S35 cells and sludge samples had a hydrophobic character. The population of Acinetobacter spp. in sewage treatment plants was 2–7% and its role in bioflocculation was discussed. The present study revealed that A. johnsonii S35 isolate can play as a bridging organism and contribute in floc-formation in activated sludge process.</description><identifier>ISSN: 0168-1656</identifier><identifier>EISSN: 1873-4863</identifier><identifier>DOI: 10.1016/j.jbiotec.2011.09.024</identifier><identifier>PMID: 22001846</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Acinetobacter - cytology ; Acinetobacter - isolation & purification ; Acinetobacter - metabolism ; Acinetobacter - ultrastructure ; Acinetobacter johnsonii ; Acinetobacter Johnsonii S35 ; Activated sludge ; adhesion ; Adsorption ; bacteria ; Biodegradation, Environmental ; biotechnology ; Cities ; Coaggregation ; FISH ; Floc-formation ; Flocculation ; Hydrophobic and Hydrophilic Interactions ; hydrophobicity ; In Situ Hybridization, Fluorescence ; Japan ; Microscopy, Phase-Contrast ; mixing ; municipal wastewater ; plant communities ; sewage ; Sewage - microbiology ; sewage treatment ; Time Factors ; wastewater treatment ; Water Purification</subject><ispartof>Journal of biotechnology, 2012-02, Vol.157 (4), p.505-511</ispartof><rights>2011 Elsevier B.V.</rights><rights>Copyright © 2011 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c388t-47a30d3b1eaf21246c6434acc1f89e3dfed9d206879111abe763ff6f14aa2a823</citedby><cites>FETCH-LOGICAL-c388t-47a30d3b1eaf21246c6434acc1f89e3dfed9d206879111abe763ff6f14aa2a823</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jbiotec.2011.09.024$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22001846$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Phuong, Kimchhayarasy</creatorcontrib><creatorcontrib>Hanazaki, Shohei</creatorcontrib><creatorcontrib>Kakii, Kazuo</creatorcontrib><creatorcontrib>Nikata, Toshiyuki</creatorcontrib><title>Involvement of Acinetobacter sp. in the floc-formation in activated sludge process</title><title>Journal of biotechnology</title><addtitle>J Biotechnol</addtitle><description>► We study coaggregation of Acinetobacter johnsonii S35 isolate with sewage bacteria. ► A. johnsonii S35 had a high affinity for many of sewage bacteria and activated sludge flocs. ► A. johnsonii S35 cells and sewage activated sludge showed a hydrophobic character. ► Hydrophobic interaction might play an important role in the coaggregation. ► Acinetobacter spp. were derived from the influent.
The coaggregation behavior of Acinetobacter johnsonii S35 isolate with sewage bacteria was assessed by a spectrophotometric assay using different samples from a municipal wastewater treatment plant and a community plant. A. johnsonii S35 coaggregated well with other free bacteria and microflocs at the mixing ratios of 0.2:1–0.6:1 of A. johnsonii S35 and sewage samples. In addition, the size of coaggregates became larger (100μm or more) under the same conditions. A. johnsonii S35 cells were highly adsorbed (adsorption=93–99%) onto sludge samples. Microbial adhesion to hydrocarbon (MATH) test and adsorption to octyl-Sepharose CL-4B showed that A. johnsonii S35 cells and sludge samples had a hydrophobic character. The population of Acinetobacter spp. in sewage treatment plants was 2–7% and its role in bioflocculation was discussed. The present study revealed that A. johnsonii S35 isolate can play as a bridging organism and contribute in floc-formation in activated sludge process.</description><subject>Acinetobacter - cytology</subject><subject>Acinetobacter - isolation & purification</subject><subject>Acinetobacter - metabolism</subject><subject>Acinetobacter - ultrastructure</subject><subject>Acinetobacter johnsonii</subject><subject>Acinetobacter Johnsonii S35</subject><subject>Activated sludge</subject><subject>adhesion</subject><subject>Adsorption</subject><subject>bacteria</subject><subject>Biodegradation, Environmental</subject><subject>biotechnology</subject><subject>Cities</subject><subject>Coaggregation</subject><subject>FISH</subject><subject>Floc-formation</subject><subject>Flocculation</subject><subject>Hydrophobic and Hydrophilic Interactions</subject><subject>hydrophobicity</subject><subject>In Situ Hybridization, Fluorescence</subject><subject>Japan</subject><subject>Microscopy, Phase-Contrast</subject><subject>mixing</subject><subject>municipal wastewater</subject><subject>plant communities</subject><subject>sewage</subject><subject>Sewage - microbiology</subject><subject>sewage treatment</subject><subject>Time Factors</subject><subject>wastewater treatment</subject><subject>Water Purification</subject><issn>0168-1656</issn><issn>1873-4863</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMFu1DAQhi0EokvhEYDcOCV4bMdxTqiqaKlUCYnSs-XY4-JVEi-2dyXevl7twpXTSDPfPzP6CHkPtAMK8vO2204hFrQdowAdHTvKxAuyATXwVijJX5JN5VQLspcX5E3OW0qpGHt4TS4YoxSUkBvy4249xPmAC66lib65smHFEidjC6Ym77omrE35hY2fo219TIspIa7HbkXCwRR0TZ737gmbXYoWc35LXnkzZ3x3rpfk8ebrz-tv7f3327vrq_vWcqVKKwbDqeMToPEMmJBWCi6MteDViNx5dKNjVKphBAAz4SC599KDMIYZxfgl-XTaW-_-3mMuegnZ4jybFeM-65GJUTLgfSX7E2lTzDmh17sUFpP-aKD6aFNv9dmmPtrUdNTVZs19OF_YTwu6f6m_-irw8QR4E7V5SiHrx4e6oa9zKZgYKvHlRGA1cQiYdLYBV4suJLRFuxj-88QzX7KSNw</recordid><startdate>20120220</startdate><enddate>20120220</enddate><creator>Phuong, Kimchhayarasy</creator><creator>Hanazaki, Shohei</creator><creator>Kakii, Kazuo</creator><creator>Nikata, Toshiyuki</creator><general>Elsevier B.V</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>7X8</scope></search><sort><creationdate>20120220</creationdate><title>Involvement of Acinetobacter sp. in the floc-formation in activated sludge process</title><author>Phuong, Kimchhayarasy ; Hanazaki, Shohei ; Kakii, Kazuo ; Nikata, Toshiyuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c388t-47a30d3b1eaf21246c6434acc1f89e3dfed9d206879111abe763ff6f14aa2a823</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Acinetobacter - cytology</topic><topic>Acinetobacter - isolation & purification</topic><topic>Acinetobacter - metabolism</topic><topic>Acinetobacter - ultrastructure</topic><topic>Acinetobacter johnsonii</topic><topic>Acinetobacter Johnsonii S35</topic><topic>Activated sludge</topic><topic>adhesion</topic><topic>Adsorption</topic><topic>bacteria</topic><topic>Biodegradation, Environmental</topic><topic>biotechnology</topic><topic>Cities</topic><topic>Coaggregation</topic><topic>FISH</topic><topic>Floc-formation</topic><topic>Flocculation</topic><topic>Hydrophobic and Hydrophilic Interactions</topic><topic>hydrophobicity</topic><topic>In Situ Hybridization, Fluorescence</topic><topic>Japan</topic><topic>Microscopy, Phase-Contrast</topic><topic>mixing</topic><topic>municipal wastewater</topic><topic>plant communities</topic><topic>sewage</topic><topic>Sewage - microbiology</topic><topic>sewage treatment</topic><topic>Time Factors</topic><topic>wastewater treatment</topic><topic>Water Purification</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Phuong, Kimchhayarasy</creatorcontrib><creatorcontrib>Hanazaki, Shohei</creatorcontrib><creatorcontrib>Kakii, Kazuo</creatorcontrib><creatorcontrib>Nikata, Toshiyuki</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>MEDLINE - Academic</collection><jtitle>Journal of biotechnology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Phuong, Kimchhayarasy</au><au>Hanazaki, Shohei</au><au>Kakii, Kazuo</au><au>Nikata, Toshiyuki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Involvement of Acinetobacter sp. in the floc-formation in activated sludge process</atitle><jtitle>Journal of biotechnology</jtitle><addtitle>J Biotechnol</addtitle><date>2012-02-20</date><risdate>2012</risdate><volume>157</volume><issue>4</issue><spage>505</spage><epage>511</epage><pages>505-511</pages><issn>0168-1656</issn><eissn>1873-4863</eissn><abstract>► We study coaggregation of Acinetobacter johnsonii S35 isolate with sewage bacteria. ► A. johnsonii S35 had a high affinity for many of sewage bacteria and activated sludge flocs. ► A. johnsonii S35 cells and sewage activated sludge showed a hydrophobic character. ► Hydrophobic interaction might play an important role in the coaggregation. ► Acinetobacter spp. were derived from the influent.
The coaggregation behavior of Acinetobacter johnsonii S35 isolate with sewage bacteria was assessed by a spectrophotometric assay using different samples from a municipal wastewater treatment plant and a community plant. A. johnsonii S35 coaggregated well with other free bacteria and microflocs at the mixing ratios of 0.2:1–0.6:1 of A. johnsonii S35 and sewage samples. In addition, the size of coaggregates became larger (100μm or more) under the same conditions. A. johnsonii S35 cells were highly adsorbed (adsorption=93–99%) onto sludge samples. Microbial adhesion to hydrocarbon (MATH) test and adsorption to octyl-Sepharose CL-4B showed that A. johnsonii S35 cells and sludge samples had a hydrophobic character. The population of Acinetobacter spp. in sewage treatment plants was 2–7% and its role in bioflocculation was discussed. The present study revealed that A. johnsonii S35 isolate can play as a bridging organism and contribute in floc-formation in activated sludge process.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>22001846</pmid><doi>10.1016/j.jbiotec.2011.09.024</doi><tpages>7</tpages></addata></record> |
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| subjects | Acinetobacter - cytology Acinetobacter - isolation & purification Acinetobacter - metabolism Acinetobacter - ultrastructure Acinetobacter johnsonii Acinetobacter Johnsonii S35 Activated sludge adhesion Adsorption bacteria Biodegradation, Environmental biotechnology Cities Coaggregation FISH Floc-formation Flocculation Hydrophobic and Hydrophilic Interactions hydrophobicity In Situ Hybridization, Fluorescence Japan Microscopy, Phase-Contrast mixing municipal wastewater plant communities sewage Sewage - microbiology sewage treatment Time Factors wastewater treatment Water Purification |
| title | Involvement of Acinetobacter sp. in the floc-formation in activated sludge process |
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