Measurement of THM and Precursor Concentrations Revisited: The Effect of Bromide Ion
In the absence of bromide ion (Br), method 5710B from Standard Methods is adequate for measuring trihalomethane (THM) precursor concentrations, provided a free available chlorine (FAC) residual of 3 mg/L is maintained at the end of incubation, and method 5710E from Standard Methods is appropriate fo...
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| Veröffentlicht in: | Journal - American Water Works Association 1993-01, Vol.85 (1), p.51-62 |
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| container_end_page | 62 |
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| container_title | Journal - American Water Works Association |
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| creator | Symons, James M. Krasner, Stuart W. Simms, Louis A. Sclimenti, Michael |
| description | In the absence of bromide ion (Br), method 5710B from Standard Methods is adequate for measuring trihalomethane (THM) precursor concentrations, provided a free available chlorine (FAC) residual of 3 mg/L is maintained at the end of incubation, and method 5710E from Standard Methods is appropriate for predicting THM concentrations at the consumer's tap. In the presence of Br⁻, method 5710B is adequate for measuring THM precursor concentrations provided only total precursor is desired. Because the initial Br⁻/average FAC dosage molar ratio influences bromine substitution, THM species concentrations cannot be predicted using method 5710B. Instead, method 57Í0E must be used. This is particularly important when evaluating THM precursor removal unit processes when the use of method 571 OB may indicate greater bromine substitution in the unit process effluent than in the influent. |
| doi_str_mv | 10.1002/j.1551-8833.1993.tb05921.x |
| format | Article |
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In the presence of Br⁻, method 5710B is adequate for measuring THM precursor concentrations provided only total precursor is desired. Because the initial Br⁻/average FAC dosage molar ratio influences bromine substitution, THM species concentrations cannot be predicted using method 5710B. Instead, method 57Í0E must be used. This is particularly important when evaluating THM precursor removal unit processes when the use of method 571 OB may indicate greater bromine substitution in the unit process effluent than in the influent.</description><identifier>ISSN: 0003-150X</identifier><identifier>EISSN: 1551-8833</identifier><identifier>DOI: 10.1002/j.1551-8833.1993.tb05921.x</identifier><identifier>CODEN: JAWWA5</identifier><language>eng</language><publisher>Denver, CO: American Water Works Association</publisher><subject>Active sites ; Applied sciences ; Bromide ; Bromides ; Bromine ; Bromine compounds ; Chlorination ; Chlorine ; Drinking water and swimming-pool water. 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In the presence of Br⁻, method 5710B is adequate for measuring THM precursor concentrations provided only total precursor is desired. Because the initial Br⁻/average FAC dosage molar ratio influences bromine substitution, THM species concentrations cannot be predicted using method 5710B. Instead, method 57Í0E must be used. This is particularly important when evaluating THM precursor removal unit processes when the use of method 571 OB may indicate greater bromine substitution in the unit process effluent than in the influent.</description><subject>Active sites</subject><subject>Applied sciences</subject><subject>Bromide</subject><subject>Bromides</subject><subject>Bromine</subject><subject>Bromine compounds</subject><subject>Chlorination</subject><subject>Chlorine</subject><subject>Drinking water and swimming-pool water. Desalination</subject><subject>Exact sciences and technology</subject><subject>Hydrocarbons</subject><subject>Organic compounds</subject><subject>Percentages</subject><subject>Pollution</subject><subject>Q1</subject><subject>Research & Technology</subject><subject>Residual Chlorine</subject><subject>Standard Methods</subject><subject>Tap water</subject><subject>Teeth</subject><subject>Trihalomethanes</subject><subject>Water treatment</subject><subject>Water treatment and pollution</subject><issn>0003-150X</issn><issn>1551-8833</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNqVkFtLxDAQhYMouF5-ghBEfGvNpWkb39bFy8KKIpX1LaTpBLt0G026Xv69XbuszzIPM8OcOQc-hE4piSkh7GIRUyFolOecx1RKHnclEZLR-GsHjbanXTQihPCICvKyjw5CWPQrFTQZoeIedFh5WELbYWdxcXePdVvhRw9m5YPzeOJa0x-97mrXBvwEH3WoO6gucfEK-NpaML-fV94t6wrw1LVHaM_qJsDxph-i55vrYnIXzR5up5PxLDJJmtFIgraVSUpuudCapUTksqSQJklaVkzoqupXAcBAm9SynJO-eJYaktK85JIfovPB98279xWETi3rYKBpdAtuFRRNk0wKxnrh5SA03oXgwao3Xy-1_1aUqDVItVBrWmpNS61Bqg1I9dU_n21SdDC6sV63pg5bh0QwITPey8aD7LNu4PsfAWo8n49_597jZPBYhM75vwjKJJcZ4z-7UZG3</recordid><startdate>19930101</startdate><enddate>19930101</enddate><creator>Symons, James M.</creator><creator>Krasner, Stuart W.</creator><creator>Simms, Louis A.</creator><creator>Sclimenti, Michael</creator><general>American Water Works Association</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19930101</creationdate><title>Measurement of THM and Precursor Concentrations Revisited: The Effect of Bromide Ion</title><author>Symons, James M. ; Krasner, Stuart W. ; Simms, Louis A. ; Sclimenti, Michael</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4671-9eafdc4b3f35aa260589b1e6446bd25add9b15ee2eac6f2830303376c0618b393</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>Active sites</topic><topic>Applied sciences</topic><topic>Bromide</topic><topic>Bromides</topic><topic>Bromine</topic><topic>Bromine compounds</topic><topic>Chlorination</topic><topic>Chlorine</topic><topic>Drinking water and swimming-pool water. Desalination</topic><topic>Exact sciences and technology</topic><topic>Hydrocarbons</topic><topic>Organic compounds</topic><topic>Percentages</topic><topic>Pollution</topic><topic>Q1</topic><topic>Research & Technology</topic><topic>Residual Chlorine</topic><topic>Standard Methods</topic><topic>Tap water</topic><topic>Teeth</topic><topic>Trihalomethanes</topic><topic>Water treatment</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Symons, James M.</creatorcontrib><creatorcontrib>Krasner, Stuart W.</creatorcontrib><creatorcontrib>Simms, Louis A.</creatorcontrib><creatorcontrib>Sclimenti, Michael</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Journal - American Water Works Association</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Symons, James M.</au><au>Krasner, Stuart W.</au><au>Simms, Louis A.</au><au>Sclimenti, Michael</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement of THM and Precursor Concentrations Revisited: The Effect of Bromide Ion</atitle><jtitle>Journal - American Water Works Association</jtitle><date>1993-01-01</date><risdate>1993</risdate><volume>85</volume><issue>1</issue><spage>51</spage><epage>62</epage><pages>51-62</pages><issn>0003-150X</issn><eissn>1551-8833</eissn><coden>JAWWA5</coden><abstract>In the absence of bromide ion (Br), method 5710B from Standard Methods is adequate for measuring trihalomethane (THM) precursor concentrations, provided a free available chlorine (FAC) residual of 3 mg/L is maintained at the end of incubation, and method 5710E from Standard Methods is appropriate for predicting THM concentrations at the consumer's tap. In the presence of Br⁻, method 5710B is adequate for measuring THM precursor concentrations provided only total precursor is desired. Because the initial Br⁻/average FAC dosage molar ratio influences bromine substitution, THM species concentrations cannot be predicted using method 5710B. Instead, method 57Í0E must be used. This is particularly important when evaluating THM precursor removal unit processes when the use of method 571 OB may indicate greater bromine substitution in the unit process effluent than in the influent.</abstract><cop>Denver, CO</cop><pub>American Water Works Association</pub><doi>10.1002/j.1551-8833.1993.tb05921.x</doi><tpages>12</tpages></addata></record> |
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| ispartof | Journal - American Water Works Association, 1993-01, Vol.85 (1), p.51-62 |
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| language | eng |
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| source | Jstor Complete Legacy |
| subjects | Active sites Applied sciences Bromide Bromides Bromine Bromine compounds Chlorination Chlorine Drinking water and swimming-pool water. Desalination Exact sciences and technology Hydrocarbons Organic compounds Percentages Pollution Q1 Research & Technology Residual Chlorine Standard Methods Tap water Teeth Trihalomethanes Water treatment Water treatment and pollution |
| title | Measurement of THM and Precursor Concentrations Revisited: The Effect of Bromide Ion |
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