Tjalfe G. Poulsen

Determining ecotoxicity drivers and biodegradation kinetics of discharged chemicals in produced water from oil and gas extraction in the North Sea

Lars Michael Skjolding, Mette Torsbjerg Møller, Ann Flemming Nielsen, Tjalfe G. Poulsen et autres

dk (code pays fourni par la source)

Long-term phosphorus removal by Ca and Fe-rich drainage filter materials under variable flow and inlet concentrations

Lorenzo Pugliese, Hans Christian Bruun Hansen, Charlotte Kjærgaard, Goswin Johann Heckrath et autres

Phosphorus (P) losses from tile-drained agricultural fields may degrade surface water quality by accelerating eutrophication. Among the different edge-of-field technologies, compact filter systems using different filter materials have been identified as potentially effective solutions for removing P from drainage water before discharge …

dk, cn (code pays fourni par la source)

Predicting evaporation from moist, cracked soil, based on near‐surface wind speed, crack width and crack distance

Tjalfe G. Poulsen

Abstract Evaporation from both cracked and uncracked soil surfaces under moist conditions was measured as a function of near‐surface wind speed, with wind speeds ranging between 0 and 5 ms −1 . Crack aperture width and distance between neighbouring cracks ranged from …

cn (code pays fourni par la source)

Local‐scale evaporation and water loss distribution in surface soil as related to near‐surface wind conditions and surface geometry

Tjalfe G. Poulsen, Taining Li, Tianjian Lu, Han Chen

Abstract Local (cm) scale water loss distribution and evaporation in soil with flat and furrowed surfaces as a function of near‐surface wind speed and wind direction was investigated. Four levels of average main wind speed (10 cm above furrow ridge summits, 0, …

cn (code pays fourni par la source)

Linking mean pore velocity and dispersivity to pore velocity distribution by advection–dispersion and stream tube modeling

Lorenzo Pugliese, Tjalfe G. Poulsen, Salvatore Straface

dk, cn, al, it (code pays fourni par la source)

Relating wind-induced gas transport in porous media to wind speed and medium characteristics

Alireza Pourbakhtiar, Tjalfe G. Poulsen, Maede Faghihinia, Konstantinos Papadikis et autres

gb, cn, ae (code pays fourni par la source)

Predicting below‐surface horizontal pore gas velocity in porous media from above‐surface wind conditions and medium gas permeability

Tjalfe G. Poulsen, Yue Jin Yuan

Abstract Below‐surface horizontal pore gas velocity profiles in response to above‐surface wind conditions were measured for 16 combinations of wind speed (1.4–5.7 ms −1 ) and wind gust frequency (0–1 Hz) in four porous media with different particle size (0.6–10 mm), yielding …

cn (code pays fourni par la source)

Predicting below-surface pore velocity profiles in porous media from above-surface wind speed and porous medium gas permeability

Tjalfe G. Poulsen

Below-surface horizontal pore air velocity profiles in porous media in response to above-surface wind conditions were measured for 16 combinations of wind speed (1.4 – 5.7 ms-1) and main wind gust frequency (0 – 1 Hz) in four granular porous media (particle …

cn (code pays fourni par la source)

Water evaporation from cracked soil under moist conditions as related to crack properties and near‐surface wind speed

Tjalfe G. Poulsen, Weiling Cai, Ankit Garg

Abstract The impacts of five factors (wind speed, crack width, crack distance, crack depth and crack orientation (compared to wind direction)), on evaporation from cracked soil under moist soil conditions were investigated experimentally. Experiments were carried out under laboratory conditions in a …

cn (code pays fourni par la source)

Linking below‐surface horizontal pore velocity profiles in porous media with near‐surface wind conditions and porous medium gas permeability

Tjalfe G. Poulsen

Abstract Above‐surface mean wind speed profiles and corresponding below‐surface horizontal pore air velocity profiles were measured for two porous media with different particle size and gas permeability under six different wind speed conditions. Experiments followed a 2 k factorial design to minimize …

cn (code pays fourni par la source)

Influence of biochar addition on gas permeability in unsaturated soil

Ankit Garg, Sanandam Bordoloi, Junjun Ni, Weiling Cai et autres

Biochar (BC) has been proposed as an alternative soil amendment in landfill cover. Its effects on soil hydraulic properties (e.g. soil water retention) have been explored to some extent, while its influence on landfill gas flow characteristics is not clear yet. The …

in, cn, hk (code pays fourni par la source)

Development of a high efficiency rice husk based adsorbent for removal of dyes from wastewater: application to Everzol Black GR and Reactive Orange 113

Yumna Sadef, Tjalfe G. Poulsen, Javed Iqbal, Irfan Ahmed Shaikh et autres

ABSTRACT Rice husk is a type of bio-waste that is easily available and provides a base for formation of an effective adsorbent along with chitosan. ZnO-coated chitosan carbonized rice husk (ZnO-CCRH) was prepared by blending Zn-loaded chitosan with rice husk. The adsorbent …

pk, cn (code pays fourni par la source)