Tuesday, January 28, 2014

Adsorption

I.INTRODUCTIONThis experiment aims to determine the isotherm for Methylene blue ? Activated promiscuous speed adsorption system and to determine the maximum surface-assimilative expertness of activated carbon for Methylene blue. Adsorption is bear on with contacting a impregnable with a fluid mixture below such(prenominal) conditions that some of the fluid is adsorbed on the surface of the unanimous with a resulting change in composition of the unadsorbed fluid ( browned, 1950). There ar different types of adsorption. Physical adsorption occurs when the intermolecular forces of attraction surrounded by the fluid molecules and the solid surface are greater than the inviting forces amongst molecules of the fluid itself (Foust et. al., 1980). Chemical adsorption, on the other hand, involves chemical heart and soul interaction between the adsorbed fluid and the adsorbent solid. In ion exchange, the solid gives up an ion to the fluid for every ion it adsorbs ( chocolate-brown , 1950). Most adsorption is long-lived and it is difficult to separate the adsorbate from the adsorbent. Thus, only physical adsorption is used in continuous staged operation (Foust et. al., 1980). Brown (1950) enumerated some of the most important adsorbents and their uses as shown below:AdsorbentImportant industrial UsesFuller?s EarthRefining of fossil oil fractions, vegetable and animal oils and fats, and waxesBauxitePercolation discourse of petroleum fractions; drying of gases and placidsAcid-treated claysContact filtration and refining of petroleum fractionsBone char, bone blackSugar refining; ash removal from solutionsDecolorizing carbonRefining of sugars, oils, fats, and waxes; decolorizing and shade of body of weewee and other liquidsGas-adsorbent carbonSolvent recovery; excreta of odors; purification of gasesAluminaDrying of air, gases, and liquidsSilica gelDrying and purification of gases; refining of petroleum distillatesBase-exchange silicateWater treatmentMag nesiaTreatment of gasoline and solventsAdsor! ption from the liquid kind is used to remove natural components from drinking water or aqueous wastes, colored impurities from sugar solutions and vegetable oils, and water from organic liquids. It can also be... If you want to get a full(a) essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.