1.Faculty of Chemical Engineering
Technology, Tati University College, Jalan Panchor, Teluk Kalong,
24000 Kemaman, Terengganu, Malaysia; 2.Department of Chemistry
for Materials, Graduate School of Engineering, Mie University, Mie
514-8507, Japan; 3.Environmental Preservation
Center, Mie University, Mie 514-8507, Japan; 4.Department of Chemistry
for Materials, Graduate School of Engineering, Mie University, Mie
514-8507, Japan；Environmental Preservation
Center, Mie University, Mie 514-8507, Japan;
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History+
Published Online
2010-09-05
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(115KB)
Abstract
In the present work, bimetallic silver/zinc was applied into the degradation of trihalomethanes, THMs: CHCl3, CHBrCl2, CHBr2Cl, and CHBr3. The kinetics reaction rates and removal efficiencies of the THM compound mixtures, in the aqueous solutions, were investigated. Batch experiments were conducted under mild conditions, ambient temperature, and pressure. The primary degradation reaction followed a pseudo-first-order kinetic law. The first-order rate constants and the degradation efficiencies followed the decreasing order of CHBr3>CHBr2Cl>CHBrCl2>CHCl3. The bond dissociation energy and hydrophilic/hydrophobic characteristics of the THM compounds may become the most important parameters affecting the degradation kinetics and efficiency by bimetallic Ag/Zn.
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(115KB)
