Solute Sorption
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Retenção de metais pesados em solos agricultáveis do Estado de Goiás / Retention of heavy metals in agricultural soils of the State of Goiás
A intensificação do uso das terras para fins agropecuários tem causado grande preocupação, devido, principalmente, aos impactos que essas atividades vêm causando ao meio ambiente, sobretudo no que diz respeito à sua contaminação por substâncias químicas. A aplicação de produtos químicos e de resíduos diversos no solo e, ou, nas plantas, com o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/07/2009
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2. Retenção de metais pesados em solos agricultáveis do Estado de Goiás / Retention of heavy metals in agricultural soils of the State of Goiás
The intensification of the use of land for farming has caused great concern, mainly due to the impacts that these activities are causing the environment, particularly with regard to its contamination by chemicals. The application of chemicals and waste ground and in several, or in plants in order to take agronomically solid waste, improve productivity and in
Publicado em: 2009
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3. Determination of solubility parameters and thermodynamic properties in hydrocarbon-solvent systems by gas chromatography
Gas chromatography used to calculate the specific retention volume of several hydrocarbons in different chromatographic liquid phases (Squalane, Carbowax-400, Carbowax-1500, Carbowax-4000, Amine-220, Dinonyl phthalate, Tributyl phosphate and Trixylenyl phosphate). Some thermodynamic parameters, such as enthalpy of sorption and Flory-Huggins parameters relati
Brazilian Journal of Chemical Engineering. Publicado em: 2007-06
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4. Theoretical aspects of antibiotic diffusion into microbial biofilms.
Antibiotic penetration into microbial biofilm was investigated theoretically by the solution of mathematical equations describing various combinations of the processes of diffusion, sorption, and reaction. Unsteady material balances on the antibiotic and on a reactive or sorptive biomass constituent, along with associated boundary and initial conditions, con
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5. In vitro sorption of albumin, immunoglobulin G, and lysozyme to enamel and cementum from human teeth.
Sorption of three 125I-labeled human proteins (albumin, immunoglobulin G, and lysozyme) to enamel and cementum was investigated. All three proteins sorped most when suspended in 0.0005 M solution of phosphate or calcium chloride where the least competition between solute ions and label occurred. The addition of human serum to labeled proteins caused a decrea
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6. Impact of Bacterial Biomass on Contaminant Sorption and Transport in a Subsurface Soil †
The objective of this study was to investigate the impact of bacterial biomass on the sorption and transport of three solutes (quinoline, naphthalene, and 45Ca) in a subsurface soil. Miscible displacement techniques were employed to measure sorption and transport of the above compounds during steady, saturated water flow in sterile and/or bacterium-inoculate
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7. Microbial degradation of acenaphthene and naphthalene under denitrification conditions in soil-water systems.
This study examined the microbial degradation of acenaphthene and naphthalene under denitrification conditions at soil-to-water ratios of 1:25 and 1:50 with soil containing approximately 10(5) denitrifying organisms per g of soil. Under nitrate-excess conditions, both acenaphthene and naphthalene were degraded from initial aqueous-phase concentrations of abo