The study of the degradation of hexabromocyclododecane in a heterogeneous system containing Fe(II) adsorbed to the iron oxide Hematite.

<p>The reaction of hexabromocyclododecane (HBCDD), a widely used brominated flame retardant, was studied in a heterogenous mixture containing reactive Fe(II) adsorbed to the iron oxide hematite. The adsorbed Fe(II)/iron oxide system has shown to be a potent reductant in the transformation of organic contaminants with relatively water soluble organic contaminants. There currently aren’t many studies involving hydrophobic organic contaminants, such as HBCDD, in this reducing Fe(II)/iron oxide system. The results indicate that across the pHs 6.86, 6.95, 7.15 and 7.35 γ and β-HBCDD are degraded within a couple days. The pseudo-first order rate constants at pH 6.95 are 0.049 hr^-1 for β-HBCDD and 0.043 hr^-1 γ-HBCDD, reaching their half-life within 15 hours of the reaction. These experiments also illustrate the isomers experience slightly different reactivities with different pHs with α-HBCDD reacting the slowest.</p>

Name thesis:degree_name

Master of Science (M.S.)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Chemistry

Year dc:date.available

2018

Author dc:creator

• Roopnarine, Kristian K

Contributors dc:contributor

• Urs Jans
• Barbara Zajc
• Glen Kowach

• Hematite
• adsorbed Fe(II)
• adsorbed Fe(II) kinetics
• Analytical Chemistry
• Environmental Chemistry

Repository record dc:identifier

https://academicworks.cuny.edu/cc_etds_theses/779

OAI identifier oai:identifier

oai:academicworks.cuny.edu:cc_etds_theses-1843