Influence of mass transfer on the ozonation of wastewater from the glass fiber industry
The mass transfer rate (kLa) is one of the most important parameters in the ozonation of wastewater, because it frequently constitutes the rate-determining step. This study investigated the influence of kLa on the ozonation of glass fiber wastewater using a high-performance jet loop reactor (HJLR),...
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| Veröffentlicht in: | Water science and technology 2004-01, Vol.49 (4), p.31-36 |
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| creator | Byun, S Cho, S H Yoon, J Geissen, S U Vogelpohl, A Kim, S M |
| description | The mass transfer rate (kLa) is one of the most important parameters in the ozonation of wastewater, because it frequently constitutes the rate-determining step. This study investigated the influence of kLa on the ozonation of glass fiber wastewater using a high-performance jet loop reactor (HJLR), which is well known for its high mass transfer property, and compared the results of this investigation with those obtained using the bubble column reactor. It was found that the higher kLa achieved by increasing the energy input did not lead to higher ozonation efficiency, since the reaction involving the OH radical was greatly hindered at the low pH produced as a result of ozonation. By maintaining the pH at a value greater than 8.0, the higher kLa in the HJLR reactor contributed to increasing not only the TOC removal of wastewater, but also the ozone consumption efficiency, as expressed by the specific ozone consumption. The specific ozone consumption in the HJLR reactor (7.1 g ozone/ g TOC) was 20% better than that in the bubble column reactor. |
| doi_str_mv | 10.2166/wst.2004.0212 |
| format | Article |
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This study investigated the influence of kLa on the ozonation of glass fiber wastewater using a high-performance jet loop reactor (HJLR), which is well known for its high mass transfer property, and compared the results of this investigation with those obtained using the bubble column reactor. It was found that the higher kLa achieved by increasing the energy input did not lead to higher ozonation efficiency, since the reaction involving the OH radical was greatly hindered at the low pH produced as a result of ozonation. By maintaining the pH at a value greater than 8.0, the higher kLa in the HJLR reactor contributed to increasing not only the TOC removal of wastewater, but also the ozone consumption efficiency, as expressed by the specific ozone consumption. 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This study investigated the influence of kLa on the ozonation of glass fiber wastewater using a high-performance jet loop reactor (HJLR), which is well known for its high mass transfer property, and compared the results of this investigation with those obtained using the bubble column reactor. It was found that the higher kLa achieved by increasing the energy input did not lead to higher ozonation efficiency, since the reaction involving the OH radical was greatly hindered at the low pH produced as a result of ozonation. By maintaining the pH at a value greater than 8.0, the higher kLa in the HJLR reactor contributed to increasing not only the TOC removal of wastewater, but also the ozone consumption efficiency, as expressed by the specific ozone consumption. The specific ozone consumption in the HJLR reactor (7.1 g ozone/ g TOC) was 20% better than that in the bubble column reactor.</description><subject>Consumption</subject><subject>Glass</subject><subject>Glass fibers</subject><subject>Hydrogen-Ion Concentration</subject><subject>Hydroxyl Radical - chemistry</subject><subject>Industrial Waste</subject><subject>Kinetics</subject><subject>Mass transfer</subject><subject>Models, Theoretical</subject><subject>Oxidants - chemistry</subject><subject>Oxidants, Photochemical - chemistry</subject><subject>Ozonation</subject><subject>Ozone</subject><subject>Ozone - chemistry</subject><subject>Reactors</subject><subject>Waste Disposal, Fluid - methods</subject><subject>Wastewater treatment</subject><subject>Water Purification - methods</subject><issn>0273-1223</issn><issn>1996-9732</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNpdkEtLAzEURoMotlaXbmXAjZupeU3SLEV8FApuFJchk0l0ykxSkwyl_noztiC4uuTm3I-PA8AlgnOMGLvdxjTHENI5xAgfgSkSgpWCE3wMphBzUiKMyQScxbiGEHJC4SmYoApyLiidgvels91gnDaFt0WvYixSUC5aEwrvivSZ99_eqdTmVya2KiazVSl_2-D7X-CjG89sW-dl65ohprA7BydWddFcHOYMvD0-vN4_l6uXp-X93arUpIKpFJUlhBqjGGVNTTilWHDYNGzBFlRYWummpjyznDLdIIG11XUuX2uta6xrMgM3-9xN8F-DiUn2bdSm65QzfogSQUxZhTGGGb3-h679EFxuJ5GghJLcBGWq3FM6-BiDsXIT2l6FXY6So3GZjcvRuByNZ_7qkDrUvWn-6INi8gO-qXxR</recordid><startdate>20040101</startdate><enddate>20040101</enddate><creator>Byun, S</creator><creator>Cho, S H</creator><creator>Yoon, J</creator><creator>Geissen, S U</creator><creator>Vogelpohl, A</creator><creator>Kim, S M</creator><general>IWA Publishing</general><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>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>7ST</scope><scope>SOI</scope></search><sort><creationdate>20040101</creationdate><title>Influence of mass transfer on the ozonation of wastewater from the glass fiber industry</title><author>Byun, S ; 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| ispartof | Water science and technology, 2004-01, Vol.49 (4), p.31-36 |
| issn | 0273-1223 1996-9732 |
| language | eng |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Consumption Glass Glass fibers Hydrogen-Ion Concentration Hydroxyl Radical - chemistry Industrial Waste Kinetics Mass transfer Models, Theoretical Oxidants - chemistry Oxidants, Photochemical - chemistry Ozonation Ozone Ozone - chemistry Reactors Waste Disposal, Fluid - methods Wastewater treatment Water Purification - methods |
| title | Influence of mass transfer on the ozonation of wastewater from the glass fiber industry |
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