Hydrodynamic Treatment of Wastewater Effluent Flocs for Improved Disinfection
Hydrodynamic forces generated by an orifice plate under low pressure were examined as a means of disrupting floes, in order to improve disinfection of treated wastewater effluents. Changes in cavitation conditions were found to have little impact on the extent of particle breakage in this experiment...
Gespeichert in:
| Veröffentlicht in: | Water environment research 2012-05, Vol.84 (5), p.387-395 |
|---|---|
| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 395 |
|---|---|
| container_issue | 5 |
| container_start_page | 387 |
| container_title | Water environment research |
| container_volume | 84 |
| creator | Gibson, J. Droppo, I. G. Farnood, R. Mahendran, B. Seto, P. Liss, S. N. |
| description | Hydrodynamic forces generated by an orifice plate under low pressure were examined as a means of disrupting floes, in order to improve disinfection of treated wastewater effluents. Changes in cavitation conditions were found to have little impact on the extent of particle breakage in this experimental setup. The rate of strain (flow rate divided by the hole radius cubed), however, was found to be the best predictor of floc breakage. Floc breakage was not affected by changes in floc concentration, but was very sensitive to differences between flocs collected from different sources. Larger flocs (90 to 106 µm) were broken apart to a greater extent than smaller ones (53 to 63 µm). Hydrodynamic treatment decreased the viability of bacteria associated with large flocs, and also increased the ultraviolet dose response by up to one log unit (i.e., a factor of ten). Subjecting final effluent wastewaters to hydrodynamic treatment, therefore, provides a treatment strategy for conditions in which the presence of flocs limits the level of disinfection that can be achieved. |
| doi_str_mv | 10.2175/106143012X13347678384567 |
| format | Article |
| fullrecord | <record><control><sourceid>jstor_proqu</sourceid><recordid>TN_cdi_proquest_miscellaneous_1031158669</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><jstor_id>42569088</jstor_id><sourcerecordid>42569088</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4867-92d58cd4cc8aa75179839680ace097338707325816e4d5e485460a7944ceee203</originalsourceid><addsrcrecordid>eNqN0FtL7DAUBeAgR7z_hHMoHARfqrln98EHGccLKIIo-lZiugsd2kaTVpl_b4YZFQTBp4byrWSxCMkYPeTMqCNGNZOCMv7IhJBGGxAglTZrZIspJXOjBPuTzonlyYlNsh3jjKYAp3KDbHIOiksutsj1xbwKvpr3tmtcdhfQDh32Q-br7MHGAd_sgCGb1nU7Ln6ftd7FrPYhu-yeg3_FKjttYtPX6IbG97tkvbZtxL3Vd4fcn03vJhf51c355eTkKncStMkLXilwlXQOrDWKmQJEoYFah7QwQoChRnAFTKOsFEpQUlNrCikdInIqdsjB8t7U4WXEOJRdEx22re3Rj7FkVDCmQOsi0f_f6MyPoU_tkuJcCw4gk4KlcsHHGLAun0PT2TBPqFxMXv40eYr-Wz0wPnVYfQY_Nk5gfwVsdLatg-1dE7-cpopCsWh6vHRvTYvzXxcoH6a3NE2W8n-X-VkcfPjMS650QQHEO4HYoXA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1022632884</pqid></control><display><type>article</type><title>Hydrodynamic Treatment of Wastewater Effluent Flocs for Improved Disinfection</title><source>Jstor Complete Legacy</source><source>MEDLINE</source><source>Wiley Online Library Journals Frontfile Complete</source><creator>Gibson, J. ; Droppo, I. G. ; Farnood, R. ; Mahendran, B. ; Seto, P. ; Liss, S. N.</creator><creatorcontrib>Gibson, J. ; Droppo, I. G. ; Farnood, R. ; Mahendran, B. ; Seto, P. ; Liss, S. N.</creatorcontrib><description>Hydrodynamic forces generated by an orifice plate under low pressure were examined as a means of disrupting floes, in order to improve disinfection of treated wastewater effluents. Changes in cavitation conditions were found to have little impact on the extent of particle breakage in this experimental setup. The rate of strain (flow rate divided by the hole radius cubed), however, was found to be the best predictor of floc breakage. Floc breakage was not affected by changes in floc concentration, but was very sensitive to differences between flocs collected from different sources. Larger flocs (90 to 106 µm) were broken apart to a greater extent than smaller ones (53 to 63 µm). Hydrodynamic treatment decreased the viability of bacteria associated with large flocs, and also increased the ultraviolet dose response by up to one log unit (i.e., a factor of ten). Subjecting final effluent wastewaters to hydrodynamic treatment, therefore, provides a treatment strategy for conditions in which the presence of flocs limits the level of disinfection that can be achieved.</description><identifier>ISSN: 1061-4303</identifier><identifier>EISSN: 1554-7531</identifier><identifier>DOI: 10.2175/106143012X13347678384567</identifier><identifier>PMID: 22852423</identifier><language>eng</language><publisher>Water Environment Federation 601 Wythe Street Alexandria, VA 22314‐1994 U.S.A: Water Environment Federation</publisher><subject>Activated sludge ; Applied sciences ; cavitation ; Cavitation flow ; Chemical engineering ; Disinfection ; Disinfection & disinfectants ; Disinfection - methods ; Dose response relationship ; Drinking water and swimming-pool water. Desalination ; Effluents ; Exact sciences and technology ; extensional flow ; floc ; Flow velocity ; General purification processes ; hydrodynamic ; Hydrodynamics ; Hydrodynamics of contact apparatus ; orifice ; Pollution ; Sewage effluent ; Strain rate ; tailing ; ultraviolet ; Ultraviolet Rays ; Waste Disposal, Fluid - methods ; Wastewater ; Wastewater treatment ; Wastewaters ; Water pollution ; Water Purification - methods ; Water treatment ; Water treatment and pollution</subject><ispartof>Water environment research, 2012-05, Vol.84 (5), p.387-395</ispartof><rights>2011 WATER ENVIRONMENT FEDERATION</rights><rights>2012 Water Environment Federation</rights><rights>2015 INIST-CNRS</rights><rights>Copyright Water Environment Federation May 2012</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4867-92d58cd4cc8aa75179839680ace097338707325816e4d5e485460a7944ceee203</citedby><cites>FETCH-LOGICAL-c4867-92d58cd4cc8aa75179839680ace097338707325816e4d5e485460a7944ceee203</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/42569088$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/42569088$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,1411,27901,27902,45550,45551,57992,58225</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26050899$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22852423$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Gibson, J.</creatorcontrib><creatorcontrib>Droppo, I. G.</creatorcontrib><creatorcontrib>Farnood, R.</creatorcontrib><creatorcontrib>Mahendran, B.</creatorcontrib><creatorcontrib>Seto, P.</creatorcontrib><creatorcontrib>Liss, S. N.</creatorcontrib><title>Hydrodynamic Treatment of Wastewater Effluent Flocs for Improved Disinfection</title><title>Water environment research</title><addtitle>Water Environ Res</addtitle><description>Hydrodynamic forces generated by an orifice plate under low pressure were examined as a means of disrupting floes, in order to improve disinfection of treated wastewater effluents. Changes in cavitation conditions were found to have little impact on the extent of particle breakage in this experimental setup. The rate of strain (flow rate divided by the hole radius cubed), however, was found to be the best predictor of floc breakage. Floc breakage was not affected by changes in floc concentration, but was very sensitive to differences between flocs collected from different sources. Larger flocs (90 to 106 µm) were broken apart to a greater extent than smaller ones (53 to 63 µm). Hydrodynamic treatment decreased the viability of bacteria associated with large flocs, and also increased the ultraviolet dose response by up to one log unit (i.e., a factor of ten). Subjecting final effluent wastewaters to hydrodynamic treatment, therefore, provides a treatment strategy for conditions in which the presence of flocs limits the level of disinfection that can be achieved.</description><subject>Activated sludge</subject><subject>Applied sciences</subject><subject>cavitation</subject><subject>Cavitation flow</subject><subject>Chemical engineering</subject><subject>Disinfection</subject><subject>Disinfection & disinfectants</subject><subject>Disinfection - methods</subject><subject>Dose response relationship</subject><subject>Drinking water and swimming-pool water. Desalination</subject><subject>Effluents</subject><subject>Exact sciences and technology</subject><subject>extensional flow</subject><subject>floc</subject><subject>Flow velocity</subject><subject>General purification processes</subject><subject>hydrodynamic</subject><subject>Hydrodynamics</subject><subject>Hydrodynamics of contact apparatus</subject><subject>orifice</subject><subject>Pollution</subject><subject>Sewage effluent</subject><subject>Strain rate</subject><subject>tailing</subject><subject>ultraviolet</subject><subject>Ultraviolet Rays</subject><subject>Waste Disposal, Fluid - methods</subject><subject>Wastewater</subject><subject>Wastewater treatment</subject><subject>Wastewaters</subject><subject>Water pollution</subject><subject>Water Purification - methods</subject><subject>Water treatment</subject><subject>Water treatment and pollution</subject><issn>1061-4303</issn><issn>1554-7531</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqN0FtL7DAUBeAgR7z_hHMoHARfqrln98EHGccLKIIo-lZiugsd2kaTVpl_b4YZFQTBp4byrWSxCMkYPeTMqCNGNZOCMv7IhJBGGxAglTZrZIspJXOjBPuTzonlyYlNsh3jjKYAp3KDbHIOiksutsj1xbwKvpr3tmtcdhfQDh32Q-br7MHGAd_sgCGb1nU7Ln6ftd7FrPYhu-yeg3_FKjttYtPX6IbG97tkvbZtxL3Vd4fcn03vJhf51c355eTkKncStMkLXilwlXQOrDWKmQJEoYFah7QwQoChRnAFTKOsFEpQUlNrCikdInIqdsjB8t7U4WXEOJRdEx22re3Rj7FkVDCmQOsi0f_f6MyPoU_tkuJcCw4gk4KlcsHHGLAun0PT2TBPqFxMXv40eYr-Wz0wPnVYfQY_Nk5gfwVsdLatg-1dE7-cpopCsWh6vHRvTYvzXxcoH6a3NE2W8n-X-VkcfPjMS650QQHEO4HYoXA</recordid><startdate>201205</startdate><enddate>201205</enddate><creator>Gibson, J.</creator><creator>Droppo, I. G.</creator><creator>Farnood, R.</creator><creator>Mahendran, B.</creator><creator>Seto, P.</creator><creator>Liss, S. N.</creator><general>Water Environment Federation</general><general>Blackwell Publishing Ltd</general><scope>IQODW</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>7QH</scope><scope>7QO</scope><scope>7ST</scope><scope>7T7</scope><scope>7U7</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H97</scope><scope>K9.</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope><scope>SOI</scope><scope>7X8</scope></search><sort><creationdate>201205</creationdate><title>Hydrodynamic Treatment of Wastewater Effluent Flocs for Improved Disinfection</title><author>Gibson, J. ; Droppo, I. G. ; Farnood, R. ; Mahendran, B. ; Seto, P. ; Liss, S. N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4867-92d58cd4cc8aa75179839680ace097338707325816e4d5e485460a7944ceee203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Activated sludge</topic><topic>Applied sciences</topic><topic>cavitation</topic><topic>Cavitation flow</topic><topic>Chemical engineering</topic><topic>Disinfection</topic><topic>Disinfection & disinfectants</topic><topic>Disinfection - methods</topic><topic>Dose response relationship</topic><topic>Drinking water and swimming-pool water. Desalination</topic><topic>Effluents</topic><topic>Exact sciences and technology</topic><topic>extensional flow</topic><topic>floc</topic><topic>Flow velocity</topic><topic>General purification processes</topic><topic>hydrodynamic</topic><topic>Hydrodynamics</topic><topic>Hydrodynamics of contact apparatus</topic><topic>orifice</topic><topic>Pollution</topic><topic>Sewage effluent</topic><topic>Strain rate</topic><topic>tailing</topic><topic>ultraviolet</topic><topic>Ultraviolet Rays</topic><topic>Waste Disposal, Fluid - methods</topic><topic>Wastewater</topic><topic>Wastewater treatment</topic><topic>Wastewaters</topic><topic>Water pollution</topic><topic>Water Purification - methods</topic><topic>Water treatment</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gibson, J.</creatorcontrib><creatorcontrib>Droppo, I. G.</creatorcontrib><creatorcontrib>Farnood, R.</creatorcontrib><creatorcontrib>Mahendran, B.</creatorcontrib><creatorcontrib>Seto, P.</creatorcontrib><creatorcontrib>Liss, S. N.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Toxicology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Water environment research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gibson, J.</au><au>Droppo, I. G.</au><au>Farnood, R.</au><au>Mahendran, B.</au><au>Seto, P.</au><au>Liss, S. N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hydrodynamic Treatment of Wastewater Effluent Flocs for Improved Disinfection</atitle><jtitle>Water environment research</jtitle><addtitle>Water Environ Res</addtitle><date>2012-05</date><risdate>2012</risdate><volume>84</volume><issue>5</issue><spage>387</spage><epage>395</epage><pages>387-395</pages><issn>1061-4303</issn><eissn>1554-7531</eissn><abstract>Hydrodynamic forces generated by an orifice plate under low pressure were examined as a means of disrupting floes, in order to improve disinfection of treated wastewater effluents. Changes in cavitation conditions were found to have little impact on the extent of particle breakage in this experimental setup. The rate of strain (flow rate divided by the hole radius cubed), however, was found to be the best predictor of floc breakage. Floc breakage was not affected by changes in floc concentration, but was very sensitive to differences between flocs collected from different sources. Larger flocs (90 to 106 µm) were broken apart to a greater extent than smaller ones (53 to 63 µm). Hydrodynamic treatment decreased the viability of bacteria associated with large flocs, and also increased the ultraviolet dose response by up to one log unit (i.e., a factor of ten). Subjecting final effluent wastewaters to hydrodynamic treatment, therefore, provides a treatment strategy for conditions in which the presence of flocs limits the level of disinfection that can be achieved.</abstract><cop>Water Environment Federation 601 Wythe Street Alexandria, VA 22314‐1994 U.S.A</cop><pub>Water Environment Federation</pub><pmid>22852423</pmid><doi>10.2175/106143012X13347678384567</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1061-4303 |
| ispartof | Water environment research, 2012-05, Vol.84 (5), p.387-395 |
| issn | 1061-4303 1554-7531 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1031158669 |
| source | Jstor Complete Legacy; MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Activated sludge Applied sciences cavitation Cavitation flow Chemical engineering Disinfection Disinfection & disinfectants Disinfection - methods Dose response relationship Drinking water and swimming-pool water. Desalination Effluents Exact sciences and technology extensional flow floc Flow velocity General purification processes hydrodynamic Hydrodynamics Hydrodynamics of contact apparatus orifice Pollution Sewage effluent Strain rate tailing ultraviolet Ultraviolet Rays Waste Disposal, Fluid - methods Wastewater Wastewater treatment Wastewaters Water pollution Water Purification - methods Water treatment Water treatment and pollution |
| title | Hydrodynamic Treatment of Wastewater Effluent Flocs for Improved Disinfection |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-02T21%3A04%3A06IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-jstor_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Hydrodynamic%20Treatment%20of%20Wastewater%20Effluent%20Flocs%20for%20Improved%20Disinfection&rft.jtitle=Water%20environment%20research&rft.au=Gibson,%20J.&rft.date=2012-05&rft.volume=84&rft.issue=5&rft.spage=387&rft.epage=395&rft.pages=387-395&rft.issn=1061-4303&rft.eissn=1554-7531&rft_id=info:doi/10.2175/106143012X13347678384567&rft_dat=%3Cjstor_proqu%3E42569088%3C/jstor_proqu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1022632884&rft_id=info:pmid/22852423&rft_jstor_id=42569088&rfr_iscdi=true |