Occurrence and separation of Cryptosporidium oocysts in drinking water treatment
The presence of Cryptosporidium sp. in Czech drinking water sources was monitored. High numbers of Cryptosporidium oocysts were found in the Slezska Harta reservoir after 1997 summer floods. The influence of iron (III) coagulant dose, mixing conditions and preozonation on the removal efficiency of C...
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| Veröffentlicht in: | Water science and technology 2000-01, Vol.41 (7), p.159-163 |
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| container_title | Water science and technology |
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| creator | DOLEJS, P DITRICH, O MACHULA, T KALOUSKOVA, N PUZOVA, G |
| description | The presence of Cryptosporidium sp. in Czech drinking water sources was monitored. High numbers of Cryptosporidium oocysts were found in the Slezska Harta reservoir after 1997 summer floods. The influence of iron (III) coagulant dose, mixing conditions and preozonation on the removal efficiency of Cryptosporidium oocysts was studied. Low mixing intensity produced flocs with poor settling features. The efficiency of sedimentation expressed as residual iron after sedimentation was proportional to removal efficiency of oocysts. Both underdosing or overdosing of iron (III) coagulant resulted in decrease of COD, turbidity and oocyst removal. Preozonation positively influenced removal efficiency of oocysts in the conventional drinking water treatment train studied. |
| doi_str_mv | 10.2166/wst.2000.0128 |
| format | Article |
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High numbers of Cryptosporidium oocysts were found in the Slezska Harta reservoir after 1997 summer floods. The influence of iron (III) coagulant dose, mixing conditions and preozonation on the removal efficiency of Cryptosporidium oocysts was studied. Low mixing intensity produced flocs with poor settling features. The efficiency of sedimentation expressed as residual iron after sedimentation was proportional to removal efficiency of oocysts. Both underdosing or overdosing of iron (III) coagulant resulted in decrease of COD, turbidity and oocyst removal. Preozonation positively influenced removal efficiency of oocysts in the conventional drinking water treatment train studied.</description><identifier>ISSN: 0273-1223</identifier><identifier>ISBN: 9781900222365</identifier><identifier>ISBN: 1900222361</identifier><identifier>EISSN: 1996-9732</identifier><identifier>DOI: 10.2166/wst.2000.0128</identifier><identifier>CODEN: WSTED4</identifier><language>eng</language><publisher>Oxford: Pergamon Press</publisher><subject>Applied sciences ; Coagulants ; Cryptosporidium ; Czech Rep ; Drinking water ; Drinking water and swimming-pool water. 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Desalination</subject><subject>Efficiency</subject><subject>Exact sciences and technology</subject><subject>Iron</subject><subject>Oocysts</subject><subject>Pollution</subject><subject>Protozoa</subject><subject>Removal</subject><subject>Sedimentation</subject><subject>Sedimentation & deposition</subject><subject>Turbidity</subject><subject>Water filtration</subject><subject>Water treatment</subject><subject>Water treatment and pollution</subject><issn>0273-1223</issn><issn>1996-9732</issn><isbn>9781900222365</isbn><isbn>1900222361</isbn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpdkEtLAzEUhYMPsNYu3QcUd1OT3JnJZCnFFxTqQtchk8lIapuMSQbpvzelBcHV5cJ3DocPoWtK5ozW9f1PTHNGCJkTypoTNKFC1IXgwE7RTPCGCkIYY1BXZ2hCGIeC5u8CXca4zikOJZmgt5XWYwjGaYOV63A0gwoqWe-w7_Ei7Ibk4-CD7ey4xd7rXUwRW4e7YN2XdZ_4RyUTcApGpa1x6Qqd92oTzex4p-jj6fF98VIsV8-vi4dloYFBKgRrDUDJK85J21bQCmiErlRV9mVXQdnXHSVGV4S3lWGK8RJqaHqq6rZlTUNgiu4OvUPw36OJSW5t1GazUc74MUrKOTS5M4M3_8C1H4PL2yQVZd7Q8OxmiooDpYOPMZheDsFuVdhJSuTetsy25d623NvO_O2xVUWtNn1QTtv4FwIuagD4BaRJfLI</recordid><startdate>20000101</startdate><enddate>20000101</enddate><creator>DOLEJS, P</creator><creator>DITRICH, O</creator><creator>MACHULA, T</creator><creator>KALOUSKOVA, N</creator><creator>PUZOVA, G</creator><general>Pergamon Press</general><general>IWA Publishing</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7UA</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FE</scope><scope>8FG</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>H96</scope><scope>H97</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>L.G</scope><scope>L6V</scope><scope>M0S</scope><scope>M1P</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>7TV</scope><scope>M7N</scope></search><sort><creationdate>20000101</creationdate><title>Occurrence and separation of Cryptosporidium oocysts in drinking water treatment</title><author>DOLEJS, P ; DITRICH, O ; MACHULA, T ; KALOUSKOVA, N ; PUZOVA, G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c323t-92be33475770bb53b9389c5a54f4d534f6d10ec507b5e2a2743638f1a6bb28803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Applied sciences</topic><topic>Coagulants</topic><topic>Cryptosporidium</topic><topic>Czech Rep</topic><topic>Drinking water</topic><topic>Drinking water and swimming-pool water. 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High numbers of Cryptosporidium oocysts were found in the Slezska Harta reservoir after 1997 summer floods. The influence of iron (III) coagulant dose, mixing conditions and preozonation on the removal efficiency of Cryptosporidium oocysts was studied. Low mixing intensity produced flocs with poor settling features. The efficiency of sedimentation expressed as residual iron after sedimentation was proportional to removal efficiency of oocysts. Both underdosing or overdosing of iron (III) coagulant resulted in decrease of COD, turbidity and oocyst removal. Preozonation positively influenced removal efficiency of oocysts in the conventional drinking water treatment train studied.</abstract><cop>Oxford</cop><pub>Pergamon Press</pub><doi>10.2166/wst.2000.0128</doi><tpages>5</tpages></addata></record> |
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| ispartof | Water science and technology, 2000-01, Vol.41 (7), p.159-163 |
| issn | 0273-1223 1996-9732 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_17738389 |
| source | EZB-FREE-00999 freely available EZB journals |
| subjects | Applied sciences Coagulants Cryptosporidium Czech Rep Drinking water Drinking water and swimming-pool water. Desalination Efficiency Exact sciences and technology Iron Oocysts Pollution Protozoa Removal Sedimentation Sedimentation & deposition Turbidity Water filtration Water treatment Water treatment and pollution |
| title | Occurrence and separation of Cryptosporidium oocysts in drinking water treatment |
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