The Experts below are selected from a list of 210 Experts worldwide ranked by ideXlab platform
Yan Wang - One of the best experts on this subject based on the ideXlab platform.
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Solubilities of Sulfamethazine, Sulfadimethoxine, Sulfamethoxydiazine, Sulfamonomethoxine, Sulfamethoxazole, and Sulfaquinoxaline in 1-Octanol from (298.15 to 333.15) K
Journal of Chemical & Engineering Data, 2009Co-Authors: Congliang Zhang, Shunyi Li, Yan WangAbstract:The solubilities of sulfamethazine, Sulfadimethoxine, sulfamethoxydiazine, sulfamonomethoxine, sulfamethoxazole, and sulfaquinoxaline in 1-octanol have been determined from (298.15 to 333.15) K. The experimental data were correlated with the modified Apelblat equation.
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solubilities of sulfadiazine sulfamethazine Sulfadimethoxine sulfamethoxydiazine sulfamonomethoxine sulfamethoxazole and sulfachloropyrazine in water from 298 15 to 333 15 k
Journal of Chemical & Engineering Data, 2007Co-Authors: Congliang Zhang, Fuan Wang, Yan WangAbstract:Using a static equilibrium method, the solubilities of sulfadiazine, sulfamethazine, Sulfadimethoxine, sulfamethoxydiazine, sulfamonomethoxine, sulfamethoxazole, and sulfachloropyrazine in water have been determined experimentally from (298.15 to 333.15) K. The experimental data were correlated with the modified Apelblat equation. The calculated results show good agreement with the experimental data.
Congliang Zhang - One of the best experts on this subject based on the ideXlab platform.
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Solubilities of Sulfamethazine, Sulfadimethoxine, Sulfamethoxydiazine, Sulfamonomethoxine, Sulfamethoxazole, and Sulfaquinoxaline in 1-Octanol from (298.15 to 333.15) K
Journal of Chemical & Engineering Data, 2009Co-Authors: Congliang Zhang, Shunyi Li, Yan WangAbstract:The solubilities of sulfamethazine, Sulfadimethoxine, sulfamethoxydiazine, sulfamonomethoxine, sulfamethoxazole, and sulfaquinoxaline in 1-octanol have been determined from (298.15 to 333.15) K. The experimental data were correlated with the modified Apelblat equation.
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solubilities of sulfadiazine sulfamethazine Sulfadimethoxine sulfamethoxydiazine sulfamonomethoxine sulfamethoxazole and sulfachloropyrazine in water from 298 15 to 333 15 k
Journal of Chemical & Engineering Data, 2007Co-Authors: Congliang Zhang, Fuan Wang, Yan WangAbstract:Using a static equilibrium method, the solubilities of sulfadiazine, sulfamethazine, Sulfadimethoxine, sulfamethoxydiazine, sulfamonomethoxine, sulfamethoxazole, and sulfachloropyrazine in water have been determined experimentally from (298.15 to 333.15) K. The experimental data were correlated with the modified Apelblat equation. The calculated results show good agreement with the experimental data.
Bernd Huwe - One of the best experts on this subject based on the ideXlab platform.
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effect of ph and soil structure on transport of sulfonamide antibiotics in agricultural soils
Environmental Pollution, 2016Co-Authors: Jong Yol Park, Bernd HuweAbstract:Abstract We investigated the effect of solution pH and soil structure on transport of sulfonamide antibiotics (sulfamethoxazole, Sulfadimethoxine and sulfamethazine) in combination with batch sorption tests and column experiments. Sorption isotherms properly conformed to Freundlich model, and sorption potential of the antibiotics is as follows; Sulfadimethoxine > sulfamethoxazole > sulfamethazine. Decreasing pH values led to increased sorption potential of the antibiotics on soil material in pH range of 4.0–8.0. This likely resulted from abundance of neutral and positive-charged sulfonamides species at low pH, which electrostatically bind to sorption sites on soil surface. Due to destruction of macropore channels, lower hydraulic conductivities of mobile zone were estimated in the disturbed soil columns than in the undisturbed soil columns, and eventually led to lower mobility of the antibiotics in disturbed column. The results suggest that knowledge of soil structure and solution condition is required to predict fate and distribution of sulfonamide antibiotics in environmental matrix.
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Sulfadimethoxine transport in soil columns in relation to sorbable and non-sorbable tracers
Environmental Science and Pollution Research, 2016Co-Authors: Jong Yol Park, Bernd HuweAbstract:In this study, miscible displacement experiment and batch sorption experiments were performed with Sulfadimethoxine, dye tracer, Brilliant Blue FCF (BB) and a conservative tracer (bromide) to depict, analyse and interpret transport paths of Sulfadimethoxine in undisturbed and disturbed soil columns. Batch sorption experiment revealed that sorption potential increased in the order: Brilliant Blue FCF > Sulfadimethoxine > bromide. The horizontal spatial patterns of Sulfadimethoxine and the tracers were analysed in each depth, and selective samples were taken in horizontal cross-section. Non-adsorbable and conservative tracer, bromide spread more widely into longitudinal and horizontal direction than Sulfadimethoxine and Brilliant Blue FCF, since adsorption reduced transversal dispersion of the Sulfadimethoxine and dye. In non-stained area, residual concentrations of Sulfadimethoxine were relatively lower than in stained areas. Therefore, Brilliant Blue FCF distribution can be used to approximate Sulfadimethoxine movement in soil. However, presence of preferential flow networks found in undisturbed soil cores can enhance mobility of Sulfadimethoxine and the tracers, due to faster flow velocities and non-equilibrium adsorption. Our findings showed that other dye tracers may also be applicable to identify transport pathways of various organic contaminants, of which physico-chemical properties are similar to those of the dye tracers. Preferential flow should be considered for drinking water managements and transport modelling, since this allows faster pollutants transport from their sources, and create critical consequences for groundwater quality and solute transport modelling.
Jong Yol Park - One of the best experts on this subject based on the ideXlab platform.
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effect of ph and soil structure on transport of sulfonamide antibiotics in agricultural soils
Environmental Pollution, 2016Co-Authors: Jong Yol Park, Bernd HuweAbstract:Abstract We investigated the effect of solution pH and soil structure on transport of sulfonamide antibiotics (sulfamethoxazole, Sulfadimethoxine and sulfamethazine) in combination with batch sorption tests and column experiments. Sorption isotherms properly conformed to Freundlich model, and sorption potential of the antibiotics is as follows; Sulfadimethoxine > sulfamethoxazole > sulfamethazine. Decreasing pH values led to increased sorption potential of the antibiotics on soil material in pH range of 4.0–8.0. This likely resulted from abundance of neutral and positive-charged sulfonamides species at low pH, which electrostatically bind to sorption sites on soil surface. Due to destruction of macropore channels, lower hydraulic conductivities of mobile zone were estimated in the disturbed soil columns than in the undisturbed soil columns, and eventually led to lower mobility of the antibiotics in disturbed column. The results suggest that knowledge of soil structure and solution condition is required to predict fate and distribution of sulfonamide antibiotics in environmental matrix.
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Sulfadimethoxine transport in soil columns in relation to sorbable and non-sorbable tracers
Environmental Science and Pollution Research, 2016Co-Authors: Jong Yol Park, Bernd HuweAbstract:In this study, miscible displacement experiment and batch sorption experiments were performed with Sulfadimethoxine, dye tracer, Brilliant Blue FCF (BB) and a conservative tracer (bromide) to depict, analyse and interpret transport paths of Sulfadimethoxine in undisturbed and disturbed soil columns. Batch sorption experiment revealed that sorption potential increased in the order: Brilliant Blue FCF > Sulfadimethoxine > bromide. The horizontal spatial patterns of Sulfadimethoxine and the tracers were analysed in each depth, and selective samples were taken in horizontal cross-section. Non-adsorbable and conservative tracer, bromide spread more widely into longitudinal and horizontal direction than Sulfadimethoxine and Brilliant Blue FCF, since adsorption reduced transversal dispersion of the Sulfadimethoxine and dye. In non-stained area, residual concentrations of Sulfadimethoxine were relatively lower than in stained areas. Therefore, Brilliant Blue FCF distribution can be used to approximate Sulfadimethoxine movement in soil. However, presence of preferential flow networks found in undisturbed soil cores can enhance mobility of Sulfadimethoxine and the tracers, due to faster flow velocities and non-equilibrium adsorption. Our findings showed that other dye tracers may also be applicable to identify transport pathways of various organic contaminants, of which physico-chemical properties are similar to those of the dye tracers. Preferential flow should be considered for drinking water managements and transport modelling, since this allows faster pollutants transport from their sources, and create critical consequences for groundwater quality and solute transport modelling.
Fuan Wang - One of the best experts on this subject based on the ideXlab platform.
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solubilities of sulfadiazine sulfamethazine Sulfadimethoxine sulfamethoxydiazine sulfamonomethoxine sulfamethoxazole and sulfachloropyrazine in water from 298 15 to 333 15 k
Journal of Chemical & Engineering Data, 2007Co-Authors: Congliang Zhang, Fuan Wang, Yan WangAbstract:Using a static equilibrium method, the solubilities of sulfadiazine, sulfamethazine, Sulfadimethoxine, sulfamethoxydiazine, sulfamonomethoxine, sulfamethoxazole, and sulfachloropyrazine in water have been determined experimentally from (298.15 to 333.15) K. The experimental data were correlated with the modified Apelblat equation. The calculated results show good agreement with the experimental data.
