Dissertations and Theses @ UNI

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Open Access Thesis

Keywords

Ultrasonic waves--Environmental aspects; Metals--Absorption and adsorption; Trace elements in water;

Abstract

This study was undertaken to determine if hydrous metal oxide adsorption, an important treatment method used to remove adsorbates from aqueous solution, could be enhanced through ultrasonic irradiation. A model system based on preformed hydrous ferric oxide as the adsorbent and copper as the adsorbate was investigated. Brief exposure of the preformed hydrous ferric oxide floe to intense ultrasonic radiation (ca. 13 Watts/cm2 ) in the presence of copper species effectively disrupted the flocculated particles permitting the copper adsorbate to access adsorption sites previously isolated within the floe. The experimental data indicate that ultrasonic disruption of pre-formed hydrous ferric oxide can improve the removal efficiency of copper species from aqueous solution. The methodology is effective over copper to iron molar concentration ratios ranging from 10 to 30% (in molar ratio) and pH values from 7.5 to 9.5. Based on the results of this study, ultrasonic treatment holds promise as a methodology to enhance the removal of a variety of cationic adsorbates from solution.

Year of Submission

1996

Degree Name

Master of Science

Department

Department of Industrial Technology

First Advisor

Patrick Wheat

Second Advisor

Edward J. Brown

Third Advisor

Mohammad Z. Iqbal

Comments

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Date Original

1996

Object Description

1 PDF file (87 leaves)

Language

en

File Format

application/pdf

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