Výsledky vyhledávání - "Kaj Henriksen"

Photodegradation of the synthetic fragrance OTNE and the bactericide triclosan adsorbed on dried loamy sand – Results from models and experiments

Autor: Toshiko Komatsu, Per Moldrup, Kaj Henriksen, Kai Bester, Noriatsu Ozaki

Publikováno v: Oszaki, N, Bester, K, Møldrup, P, Henriksen, K & Komatsu, T 2011, ' Photodegradation of the synthetic fragrance OTNE and the bactericide triclosan adsorbed on dried loamy sand-Results from models and experiments ', Chemosphere, vol. 83, no. 11, pp. 1475-1479 . https://doi.org/10.1016/j.chemosphere.2011.03.006

Fragrances such as OTNE (marketed as Iso-E-Super®) and bactericides such as triclosan (marketed as Igrasan) are present in waste water and thus finally sorbed to sewage sludge. With that sludge they can reach agricultural fields where they potential

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4a52449179681bb670cfd0be3663525
https://doi.org/10.1016/j.chemosphere.2011.03.006

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TIME-DEPENDENCY OF NAPHTHALENE SORPTION IN SOIL: SIMPLE RATE-, DIFFUSION-, AND ISOTHERM-PARAMETER-BASED MODELS

Autor: Jesper Gamst, Kate M. Scow, Kaj Henriksen, Per Moldrup, Dennis E. Rolston, Toshiko Komatsu

Publikováno v: Gamst, J, Møldrup, P, Rolston, D E, Scow, K M, Henriksen, K & Komatsu, T 2004, ' Time-dependency of naphthalene sorption in soil: Simple rate-diffusion-and isotherm-parameter-based models ', Soil Science, vol. 169, no. 5, pp. 342-354 .

Sorption mechanisms and kinetics govern contaminant fate and bioavailability in soil to a great extent. In this study, temporal development of naphthalene sorption was measured on four soils and showed continuously increasing sorption with time. Two

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72dca76f0aea34e45c3eccdee34d1ecc
https://doi.org/10.1097/01.ss.0000128011.69526.e6

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QUANTIFICATION OF 14C-LABELED HYDROPHOBIC ORGANIC COMPOUNDS IN SOIL SAMPLES BY A SCINTILLATION FLUID EXTRACTION METHOD

Autor: Kaj Henriksen, Peter Roslev, Torben Olesen, Dennis E. Rolston, Martin Hesselsøe, Jesper Gamst, Per Moldrup

Publikováno v: Gamst, J, Hesselsøe, M, Roslev, P, Roslev, P, Møldrup, P, Henriksen, K & Henriksen, K 2002, ' Quantification of 14C-labeled hydrophobic organic compounds in soil samples by a scintillation fluid extraction method ', Soil Science, vol. 167, no. 1, pp. 25-34 .

Hydrophobic organic chemicals labeled with 14 C are often used as tracers to study chemical fate and transport in soil. Wet oxidation is the recognized but labor-demanding method used most often to measure the concentration of radioactive organic tra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7ba10c144b07400ed16a250db1fb45a
https://doi.org/10.1097/00010694-200201000-00003

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Kinetics of Di-(2-ethylhexyl)phthalate Mineralization in Sludge-Amended Soil

Autor: Jesper Bandsholm Thyme, Peter Lindequist Madsen, Per Moldrup, Peter Roslev, Kaj Henriksen

Publikováno v: Madsen, P L, Thyme, J B, Henriksen, K, MØldrup, P & Roslev, P 1999, ' Kinetics of di-(2-ethylhexyl)phthalate mineralization in sludge-amended soil ', Environmental Science and Technology, vol. 33, no. 15, pp. 2601-2606 . https://doi.org/10.1021/es981015o

Sewage sludge is frequently used as a soil fertilizer although it may contain elevated concentrations of priority pollutants including di-(2- ethylhexyl)phthalate (DEHP). In the present study, the kinetics of microbial [14C]DEHP mineralization was st

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20561b990eab16d34d5f7f82a2edea2d
https://doi.org/10.1021/es981015o

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High-Resolution Time Domain Reflectometry Coil Probe for Measuring Soil Water Content

Autor: Henrik H. Nissen, Per Moldrup, Kaj Henriksen

Publikováno v: Nissen, H H, Moldrup, P & Henriksen, K 1998, ' High-resolution time domain reflectometry coil probe for measuring soil water content ', Soil Science Society of America Journal, vol. 62, no. 5, pp. 1203-1211 . https://doi.org/10.2136/sssaj1998.03615995006200050008x

Time domain reflectometry (TDR) is becoming a widely used non-destructive method for measuring soil-water content (θ), but relatively little effort has been put into the development of TDR equipment and especially TDR probes. Therefore, TDR has been

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efbeaba08f68dddc52c1be7271c7ce2c
https://doi.org/10.2136/sssaj1998.03615995006200050008x

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Soil nitrogen transformations along a successional gradient from Calluna heathland to Quercus forest at intermediate atmospheric nitrogen deposition

Autor: Hanne Lakkenborg Kristensen, Kaj Henriksen

Publikováno v: Scopus-Elsevier
Kristensen, H L & Henriksen, K 1998, ' Soil Nitrogen Transformations Along a Successional Gradient from Heathland to Quercus Forest at Intermediate Atmospheric Nitrogen Deposition ', Agriculture, Ecosystems & Environment. Applied Soil Ecology, vol. 8, pp. 95-109 . https://doi.org/10.1016/S0929-1393(97)00062-0

Soil nitrogen transformations were studied in a Danish Calluna heathland, a 70-year-old Quercus scrub, and a 200-year-old Quercus forest. These three ecosystems were chosen to represent a secondary successional gradient from Calluna heathland to Quer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3029b655baab2b7c54836af7b419d8f2
https://doi.org/10.1016/s0929-1393(97)00062-0

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MODELING DIFFUSION AND REACTION IN SOILS: VI. ION DIFFUSION AND WATER CHARACTERISTICS IN ORGANIC MANURE-AMENDED SOIL

Autor: Kaj Henriksen, Torben Olesen, Per Moldrup

Publikováno v: Olesen, T, Møldrup, P & Henriksen, K 1997, ' Modeling Diffusion and Reaction in Soils : VI. Ion Diffusion and Water Characteristics in Organic Manure-Amended Soil ', Soil Science, vol. 162, no. 6, pp. 399-409 .
Olesen, T, Moldrup, P & Henriksen, K 1997, ' Modeling diffusion and reaction in soils : VI. Ion diffusion and water characteristics in organic manure-amended soil ', Soil Science, vol. 162, no. 6, pp. 399-409 . https://doi.org/10.1097/00010694-199706000-00002

Knowledge of short-term changes in soil physical properties attributable to manure application is a prerequisite for estimating water and solute movement in manure-amended soils. Ion diffusivity and water transport characteristics were measured after

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aec1e15308a5c4479cdc1e3814161ad0
https://doi.org/10.1097/00010694-199706000-00002

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MODELING DIFFUSION AND REACTION IN SOILS: V. NITROGEN TRANSFORMATIONS IN ORGANIC MANURE-AMENDED SOIL

Autor: Bryan S. Griffiths, Kaj Henriksen, Torben Olesen, Ron E. Wheatley, Per Moldrup

Publikováno v: Olesen, T, Griffiths, B S, Henriksen, K, Møldrup, P & Wheatley, R 1997, ' Modeling Diffusion and Reaction in Soils : V. Nitrogen Transformations in Organic Manure-amended Soil ', Soil Science, vol. 162, no. 3, pp. 157-168 .
Olesen, T, Griffiths, B S, Henriksen, K, Moldrup, P & Wheatley, R 1997, ' Modeling diffusion and reaction in soils : V. Nitrogen transformations in organic manure-amended soil ', Soil Science, vol. 162, no. 3, pp. 157-168 . https://doi.org/10.1097/00010694-199703000-00001

Measurements of nitrogen transformation with high temporal and spatial resolution are needed to better understand and predict nitrogen losses from manure-amended soil. Centimeter-scale measurements of nitrogen transport and transformations were carri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b88d977f74ad1bf6fe90ab2ba2a52cc6
https://doi.org/10.1097/00010694-199703000-00001

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Oxidation and assimilation of atmospheric methane by soil methane oxidizers

Autor: Kaj Henriksen, Peter Roslev, Niels Iversen

Publikováno v: Roslev, P, Iversen, N & Henriksen, K 1997, ' Oxidation and Assimilation of Atmospheric Methane by Soil Methane Oxidizers ', Applied and Environmental Microbiology, vol. 63, no. 3, pp. 874-880 .
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The metabolism of atmospheric methane in a forest soil was studied by radiotracer techniques. Maximum (sup14)CH(inf4) oxidation (163.5 pmol of C cm(sup-3) h(sup-1)) and (sup14)C assimilation (50.3 pmol of C cm(sup-3) h(sup-1)) occurred at the A(inf2)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5007cbdf56a2e5e01bef4b1a0341cecd
https://doi.org/10.1128/aem.63.3.874-880.1997

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Vadose Zone Biodegradation of Benzene Vapors in Repacked and Undisturbed Soil Cores

Autor: P. Loll, Chisato Hosoi, Andreas Houlberg Kristensen, Per Moldrup, Kaj Henriksen

Publikováno v: Kristensen, A H, Hosoi, C, Henriksen, K, Loll, P & Møldrup, P 2012, ' Vadose Zone Biodegradation of Benzene Vapors in Repacked and Undisturbed Soil Cores ', Vadose Zone Journal, vol. 11, no. 1 . https://doi.org/10.2136/vzj2011.0034

Bench testing of petroleum biodegradation rates in vadose zone soils is typically associated with errors because transport conditions in laboratory systems are different from those found in the vadose zone. This work addressed the effect of soil stru

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ddd5bb14d648972e9bc14f0e85c035e
https://vbn.aau.dk/da/publications/3bd192ec-3695-4b3c-ac7a-cf1b650cc895

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