Sökning: "Adsorption"
Visar resultat 21 - 25 av 370 uppsatser innehållade ordet Adsorption.
21. Spatial analysis of arsenic and fluoride mobilization in groundwater around Mount Meru, northern Tanzania
Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknikSammanfattning : In Tanzania, approximately 76% of the drinking water supplies is dependent on groundwater sources. However, the groundwater in north Tanzania is susceptible to contamination by arsenic and fluoride. This study examines the spatial analysis of arsenic and fluoride mobilization in groundwater around Mount Meru, located in northern Tanzania. LÄS MER
22. A new generation ofsmart food packaging : A combination of releasing anti-microbial and generation carbon dioxide inmeat packaging
Master-uppsats, Karlstads universitetSammanfattning : Abstract Food sustainability depends significantly on packaging since it helps maintainfood safe and fresh throughout its shelf life, resulting in the least amount ofwaste and the least negative environmental impact. The main objective of thisstudy is to determine the adsorbed and released amount of antimicrobial agents(benzoic acid and thymol) on modified calcium carbonate (MCC) by investigating adsorption isotherm at 25°C and desorption kinetics at both 22°C and5°C of anti-microbial to identify potential solutions to enhance the long-termsustainability of fresh products such as meat. LÄS MER
23. Design and processing of metal-organic frameworks for greenhouse gas capture
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Nanoteknologi och funktionella materialSammanfattning : Anthropogenic emission of greenhouse gases has long been suspected to contribute to global warming and climate change. Most greenhouse gases are emitted in a mixture, so efficient methods and materials to separate and capture the gases are in demand in order to reduce emissions. LÄS MER
24. Investigation of Adsorption and Retention of Charged Compounds In RPLC
Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)Sammanfattning : The adsorption isotherm of two weak bases, Promethazine hydrochloride and Propranolol hydrochloride, were determined with isocratic reversed-phase liquid chromatography, with a 60 w% methanol in 20 mM sodium acetate buffer pH 4 as the mobile phase, and calculated by the elution by characteristic points method. The data obtained from the method were then fitted into the Langmuir isotherm and the electrostatically modified Langmuir. LÄS MER
25. Adsorption studier av antimikrobiella komponenter på olika adsorption : Adsorption vid gränssnittet fast/vätska
Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)Sammanfattning : In this study, we examined the effects of temperature, heat treatment which were heated in oven for an hour in 200 ℃, and solvent on the adsorption isotherm for thymol and benzoic acid on the three surfaces (modified calcium carbonate, silica gel, and perlite). For the first effect, the adsorption isotherm for benzoic acid on modified calcium carbonate was determined at temperatures of 25, 35, 45 and 55 ℃ in ethanol solvent. LÄS MER
