the effluents of tannery industries are the major source of chromium contamination in thegroundwater. in most of the sub-urban areas ground water is the major source of drinking water. for humanbeing long term exposure to chromium is detrimental. the main objective of this study is to assess thegroundwater contamination and to adopt appropriate methods and to develop suitable techniques either ...

Adsorption and ion exchange are examples of fixed-bed sorption processes that show transient behavior. This means differential equations needed to design them. As a result, numerical methods commonly utilized solve these equations. The solution frequently used in analytical is called the Thomas solution. gave complete adds nonlinear equilibrium relationship depends on second-order reaction kine...

Abstract PAMAM dendrimers modified silica gel terminated phenylphosphonic acid-amide moieties (Si-6G PAMAM-PPAAM) was prepared for uranium(VI) adsorption from aqueous solutions by batch and fixed-bed column methods. The experimental results showed that the maximum capacity 434.78 mg g −1 . Equilibrium isotherm data obeyed Langmuir model. Kinetic followed pseudo-second order model thermodynamic ...

Crude biodiesel needs to go through purification process, meet international specifications.. The widely used adsorption column is in the form of a fixed bed column, where contents are stacked mess. This makes adsorbent difficult clean and fill, irregular accumulation can hinder flow fluid be purified. In this study, an with portable circulation system observe influence level on purity biodiese...