New measurement principle and basic performance of high-sensitivity turbidimeter with two optical systems in series
An outbreak of Cryptosporidium infection from tap water has triggered the implementation of stricter controls for the turbidity of filtered water in Japan. Accordingly, a growing number of water purification plants have begun to measure the number of particles, which is more closely correlated to th...
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| Veröffentlicht in: | Water research (Oxford) 2006-02, Vol.40 (4), p.683-691 |
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| creator | Ebie, Kunio Yamaguchi, Dabide Hoshikawa, Hiroshi Shirozu, Toru |
| description | An outbreak of Cryptosporidium infection from tap water has triggered the implementation of stricter controls for the turbidity of filtered water in Japan. Accordingly, a growing number of water purification plants have begun to measure the number of particles, which is more closely correlated to this kind of protozoan than turbidity. With this background we have developed a high-sensitivity turbidimeter based on the particle counting method that supports both turbidity measurement and particle counting to realize a compact and low-cost monitoring system of filtered water. This paper explains the basic principles of the turbidimeter, which uses both forward-angle light scattering and light obscuration methods in series and determines the turbidity from particle counting by applying Mie's theory of light scattering. In basic experiments on turbidity standards such as kaolin solution and formazine solution, we verified that the turbidimeter could determine the particle counts and turbidity of filtered water with sufficient accuracy. |
| doi_str_mv | 10.1016/j.watres.2005.11.032 |
| format | Article |
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Accordingly, a growing number of water purification plants have begun to measure the number of particles, which is more closely correlated to this kind of protozoan than turbidity. With this background we have developed a high-sensitivity turbidimeter based on the particle counting method that supports both turbidity measurement and particle counting to realize a compact and low-cost monitoring system of filtered water. This paper explains the basic principles of the turbidimeter, which uses both forward-angle light scattering and light obscuration methods in series and determines the turbidity from particle counting by applying Mie's theory of light scattering. 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Desalination ; Environmental Monitoring - methods ; equipment performance ; Exact sciences and technology ; Filtration ; Forward-angle light scatter ; Light obscuration ; Nephelometry and Turbidimetry ; new methods ; optical equipment ; Optics and Photonics ; Particle counting ; Particle Size ; Particle size distribution ; particles ; Pollution ; Reproducibility of Results ; Sensitivity and Specificity ; turbidimeters ; Turbidity ; water quality ; Water Supply - standards ; water treatment ; Water treatment and pollution</subject><ispartof>Water research (Oxford), 2006-02, Vol.40 (4), p.683-691</ispartof><rights>2005 Elsevier Ltd</rights><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c445t-f88f02ead171752ab4935a25f711ed34898951cb5b4b46e75d4d2fd9fadc0c393</citedby><cites>FETCH-LOGICAL-c445t-f88f02ead171752ab4935a25f711ed34898951cb5b4b46e75d4d2fd9fadc0c393</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.watres.2005.11.032$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17609235$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16476466$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ebie, Kunio</creatorcontrib><creatorcontrib>Yamaguchi, Dabide</creatorcontrib><creatorcontrib>Hoshikawa, Hiroshi</creatorcontrib><creatorcontrib>Shirozu, Toru</creatorcontrib><title>New measurement principle and basic performance of high-sensitivity turbidimeter with two optical systems in series</title><title>Water research (Oxford)</title><addtitle>Water Res</addtitle><description>An outbreak of Cryptosporidium infection from tap water has triggered the implementation of stricter controls for the turbidity of filtered water in Japan. Accordingly, a growing number of water purification plants have begun to measure the number of particles, which is more closely correlated to this kind of protozoan than turbidity. With this background we have developed a high-sensitivity turbidimeter based on the particle counting method that supports both turbidity measurement and particle counting to realize a compact and low-cost monitoring system of filtered water. This paper explains the basic principles of the turbidimeter, which uses both forward-angle light scattering and light obscuration methods in series and determines the turbidity from particle counting by applying Mie's theory of light scattering. In basic experiments on turbidity standards such as kaolin solution and formazine solution, we verified that the turbidimeter could determine the particle counts and turbidity of filtered water with sufficient accuracy.</description><subject>analytical methods</subject><subject>Animals</subject><subject>Applied sciences</subject><subject>Cryptosporidium</subject><subject>Drinking water and swimming-pool water. Desalination</subject><subject>Environmental Monitoring - methods</subject><subject>equipment performance</subject><subject>Exact sciences and technology</subject><subject>Filtration</subject><subject>Forward-angle light scatter</subject><subject>Light obscuration</subject><subject>Nephelometry and Turbidimetry</subject><subject>new methods</subject><subject>optical equipment</subject><subject>Optics and Photonics</subject><subject>Particle counting</subject><subject>Particle Size</subject><subject>Particle size distribution</subject><subject>particles</subject><subject>Pollution</subject><subject>Reproducibility of Results</subject><subject>Sensitivity and Specificity</subject><subject>turbidimeters</subject><subject>Turbidity</subject><subject>water quality</subject><subject>Water Supply - standards</subject><subject>water treatment</subject><subject>Water treatment and pollution</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp90UtrFTEUwPEgir2tfgPRbHQ3Y17z2gilaBWKLrTrkElOenOZlzmZXu63N2UudOciZPM7h_APIe84Kznj9edDeTQpApaCsarkvGRSvCA73jZdIZRqX5IdY0oWXFbqglwiHhhjQsjuNbngtWpqVdc7gj_hSEcwuEYYYUp0iWGyYRmAmsnR3mCwdIHo5ziayQKdPd2Hh32BMGFI4TGkE01r7IMLIySI9BjSnqbjTOclBWsGiidMMCINE0WIAfANeeXNgPD2fF-R-29f_9x8L-5-3f64ub4rrFJVKnzbeibAON7wphKmV52sjKh8wzk4qdqu7Spu-6pXvaqhqZxywrvOG2eZlZ28Ip-2vUuc_66ASY8BLQyDmWBeUQvWyHxUhmqDNs6IEbzOFUYTT5oz_RRbH_QWWz_F1pzrHDuPvT_vX_sR3PPQuW4GH8_AYC7hYy4Y8Nk1NeuErLL7sDlvZm0eYjb3vwXjknHWMsZ5Fl82AbnXY4Co0QbI_-FCBJu0m8P_3_oPglyrJw</recordid><startdate>20060201</startdate><enddate>20060201</enddate><creator>Ebie, Kunio</creator><creator>Yamaguchi, Dabide</creator><creator>Hoshikawa, Hiroshi</creator><creator>Shirozu, Toru</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>FBQ</scope><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>7TV</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>M7N</scope></search><sort><creationdate>20060201</creationdate><title>New measurement principle and basic performance of high-sensitivity turbidimeter with two optical systems in series</title><author>Ebie, Kunio ; Yamaguchi, Dabide ; Hoshikawa, Hiroshi ; Shirozu, Toru</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c445t-f88f02ead171752ab4935a25f711ed34898951cb5b4b46e75d4d2fd9fadc0c393</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>analytical methods</topic><topic>Animals</topic><topic>Applied sciences</topic><topic>Cryptosporidium</topic><topic>Drinking water and swimming-pool water. 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Accordingly, a growing number of water purification plants have begun to measure the number of particles, which is more closely correlated to this kind of protozoan than turbidity. With this background we have developed a high-sensitivity turbidimeter based on the particle counting method that supports both turbidity measurement and particle counting to realize a compact and low-cost monitoring system of filtered water. This paper explains the basic principles of the turbidimeter, which uses both forward-angle light scattering and light obscuration methods in series and determines the turbidity from particle counting by applying Mie's theory of light scattering. 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| subjects | analytical methods Animals Applied sciences Cryptosporidium Drinking water and swimming-pool water. Desalination Environmental Monitoring - methods equipment performance Exact sciences and technology Filtration Forward-angle light scatter Light obscuration Nephelometry and Turbidimetry new methods optical equipment Optics and Photonics Particle counting Particle Size Particle size distribution particles Pollution Reproducibility of Results Sensitivity and Specificity turbidimeters Turbidity water quality Water Supply - standards water treatment Water treatment and pollution |
| title | New measurement principle and basic performance of high-sensitivity turbidimeter with two optical systems in series |
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