Evaluating Henry's law constant of N-nitrosodimethylamine (NDMA)
N-Nitrosodimethylamine (NDMA), a potential carcinogen, may contaminate the groundwater when the reclaimed wastewater is used for irrigation and groundwater recharge. Henry's law constant is a critical parameter to assess the fate and transport of reclaimed wastewater-borne NDMA in the soil prof...
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| Veröffentlicht in: | Water science and technology 2011-01, Vol.64 (8), p.1636-1641 |
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| creator | Haruta, Shinsuke Jiao, Wentao Chen, Weiping Chang, Andrew C Gan, Jay |
| description | N-Nitrosodimethylamine (NDMA), a potential carcinogen, may contaminate the groundwater when the reclaimed wastewater is used for irrigation and groundwater recharge. Henry's law constant is a critical parameter to assess the fate and transport of reclaimed wastewater-borne NDMA in the soil profile. We conducted a laboratory experiment in which the change of NDMA concentration in water exposed to the atmosphere was measured with respect to time and, based on the data, obtained the dimensionless Henry's law constant (K(H)') of NDMA, at 1.0 x 10(-4). The K(H)' suggests that NDMA has a relatively high potential to volatilize in the field where NDMA-containing wastewater is used for irrigation and the volatilization loss may be a significant pathway of NDMA transport. The experiment was based on the two boundary-layer approach of mass transfer at the atmosphere-water interface. It is an expedient method to delineate K(H)' for volatile or semi-volatile compounds present in water at low concentrations. |
| doi_str_mv | 10.2166/wst.2011.742 |
| format | Article |
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Henry's law constant is a critical parameter to assess the fate and transport of reclaimed wastewater-borne NDMA in the soil profile. We conducted a laboratory experiment in which the change of NDMA concentration in water exposed to the atmosphere was measured with respect to time and, based on the data, obtained the dimensionless Henry's law constant (K(H)') of NDMA, at 1.0 x 10(-4). The K(H)' suggests that NDMA has a relatively high potential to volatilize in the field where NDMA-containing wastewater is used for irrigation and the volatilization loss may be a significant pathway of NDMA transport. The experiment was based on the two boundary-layer approach of mass transfer at the atmosphere-water interface. 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Henry's law constant is a critical parameter to assess the fate and transport of reclaimed wastewater-borne NDMA in the soil profile. We conducted a laboratory experiment in which the change of NDMA concentration in water exposed to the atmosphere was measured with respect to time and, based on the data, obtained the dimensionless Henry's law constant (K(H)') of NDMA, at 1.0 x 10(-4). The K(H)' suggests that NDMA has a relatively high potential to volatilize in the field where NDMA-containing wastewater is used for irrigation and the volatilization loss may be a significant pathway of NDMA transport. The experiment was based on the two boundary-layer approach of mass transfer at the atmosphere-water interface. It is an expedient method to delineate K(H)' for volatile or semi-volatile compounds present in water at low concentrations.</description><subject>Atmosphere</subject><subject>Boundary layers</subject><subject>Carcinogens</subject><subject>Dimethylnitrosamine - chemistry</subject><subject>Groundwater</subject><subject>Groundwater irrigation</subject><subject>Groundwater recharge</subject><subject>Irrigation</subject><subject>Low concentrations</subject><subject>Mass transfer</subject><subject>Models, Theoretical</subject><subject>Mud-water interfaces</subject><subject>N-Nitrosodimethylamine</subject><subject>Soil</subject><subject>Soil contamination</subject><subject>Soil profiles</subject><subject>Transport</subject><subject>Volatile compounds</subject><subject>Volatilization</subject><subject>Waste Disposal, Fluid</subject><subject>Wastewater</subject><subject>Wastewater renovation</subject><subject>Water - chemistry</subject><subject>Water Pollutants, Chemical - chemistry</subject><subject>Water reclamation</subject><issn>0273-1223</issn><issn>1996-9732</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNkU1Lw0AQhhdRbK3ePEvAQxVM3dnNfuRmqdUKtV56X7bJRlOSTc1uLP33JrR68CRzGBgehpn3QegS8IgA5_db50cEA4xERI5QH-KYh7Gg5Bj1MRE0BEJoD505t8YYCxrhU9RrR5QB5n30MP3SRaN9bt-DmbH1buiCQm-DpLLOa-uDKgsWoc19XbkqzUvjP3aFLnNrgpvF4-v49hydZLpw5uLQB2j5NF1OZuH87fllMp6HCZXSh1EsIAXNIMJsBbDSRugkkywRnAoMRPIsjQWTMk0Fo6Q7dMWBS5OJTAKnAzTcr93U1WdjnFdl7hJTFNqaqnEqJoQAa-sfJBZSMtyR13_IddXUtv1CQRxRKQAz3FJ3eyppI3C1ydSmzktd7xRg1RlQrQHVGVCtgRa_OixtVqVJf-GfyOk3YOx9-g</recordid><startdate>20110101</startdate><enddate>20110101</enddate><creator>Haruta, Shinsuke</creator><creator>Jiao, Wentao</creator><creator>Chen, Weiping</creator><creator>Chang, Andrew C</creator><creator>Gan, Jay</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>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>7TV</scope><scope>7U6</scope><scope>SOI</scope><scope>7X8</scope></search><sort><creationdate>20110101</creationdate><title>Evaluating Henry's law constant of N-nitrosodimethylamine (NDMA)</title><author>Haruta, Shinsuke ; Jiao, Wentao ; Chen, Weiping ; Chang, Andrew C ; Gan, Jay</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c388t-4971d1a51405b11bae7acf85c763701286fd97588dd75320734b6168ef7f8163</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Atmosphere</topic><topic>Boundary layers</topic><topic>Carcinogens</topic><topic>Dimethylnitrosamine - 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Henry's law constant is a critical parameter to assess the fate and transport of reclaimed wastewater-borne NDMA in the soil profile. We conducted a laboratory experiment in which the change of NDMA concentration in water exposed to the atmosphere was measured with respect to time and, based on the data, obtained the dimensionless Henry's law constant (K(H)') of NDMA, at 1.0 x 10(-4). The K(H)' suggests that NDMA has a relatively high potential to volatilize in the field where NDMA-containing wastewater is used for irrigation and the volatilization loss may be a significant pathway of NDMA transport. The experiment was based on the two boundary-layer approach of mass transfer at the atmosphere-water interface. It is an expedient method to delineate K(H)' for volatile or semi-volatile compounds present in water at low concentrations.</abstract><cop>England</cop><pub>IWA Publishing</pub><pmid>22335106</pmid><doi>10.2166/wst.2011.742</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0273-1223 |
| ispartof | Water science and technology, 2011-01, Vol.64 (8), p.1636-1641 |
| issn | 0273-1223 1996-9732 |
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| subjects | Atmosphere Boundary layers Carcinogens Dimethylnitrosamine - chemistry Groundwater Groundwater irrigation Groundwater recharge Irrigation Low concentrations Mass transfer Models, Theoretical Mud-water interfaces N-Nitrosodimethylamine Soil Soil contamination Soil profiles Transport Volatile compounds Volatilization Waste Disposal, Fluid Wastewater Wastewater renovation Water - chemistry Water Pollutants, Chemical - chemistry Water reclamation |
| title | Evaluating Henry's law constant of N-nitrosodimethylamine (NDMA) |
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