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Lehigh University

Environmental Engineering

Adsorption

Publication Year

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Full-Text Articles in Engineering

Real Time Quantification Of Activated Carbon Adsorption Of Butanol And Evaluation Of Influencing Adsorbent Characteristics, Dylan Friedgen-Veitch Jan 2017

Real Time Quantification Of Activated Carbon Adsorption Of Butanol And Evaluation Of Influencing Adsorbent Characteristics, Dylan Friedgen-Veitch

Theses and Dissertations

This paper uses a real-time data collection technique to analyze VOC adsorption onto activated carbon. Specifically, butyl alcohol is run through a column of extruded or granular activated carbon until it reaches an equilibrium concentration. These results are measured by a Photo-ionization Detector (PID) and reported to a computer for easy processing. Twenty-one total types of carbon were tested for capacity and time to breakthrough, with breakthrough being designated as 350 ppm as reported by the PID. Upon analyzing results of these tests, it is confirmed that surface area is proportional to adsorption capacity. It is also found that density ...


Development Of Hybrid Polymeric/ Inorganic Ion Exchanger: Preparation, Characterization, And Environmental Applications, Surapol Padungthon Jan 2013

Development Of Hybrid Polymeric/ Inorganic Ion Exchanger: Preparation, Characterization, And Environmental Applications, Surapol Padungthon

Theses and Dissertations

The study involves the development of two environmental applications using hybrid polymeric/ inorganic ion exchangers. First, the hybrid polymeric ion exchangers supported hydrated zirconium oxide (HZO) nanoparticles, referred to as HIX-Zr were developed for selective removal of heavy metals and anionic ligands. Second, salt-free water softening processes were presented using three different heterogeneous cation exchanger resins along with novel regeneration schemes. The HIX-Zr nanosorbents have been prepared, characterized, and extensively studied in relation to heavy metal (i.e., zinc) and anionic ligand (i.e., arsenate and fluoride) removal in fixed-bed processes at trace concentrations with the presence of high concentrations ...