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Photo-oxidation Process of Endocrine Disrupting Compounds in Water

April 17,2009 NASA Space Grant Rodrigo Lopez Mentor: Dr. Eduardo Saez NASA Space Grant Symposium April 18, 2009. Photo-oxidation Process of Endocrine Disrupting Compounds in Water. Intersex Characteristics in Fish. Higher abundance of fish with intersex characteristics in presence of

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Photo-oxidation Process of Endocrine Disrupting Compounds in Water

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  1. April 17,2009 NASA Space Grant Rodrigo Lopez Mentor: Dr. Eduardo Saez NASA Space Grant Symposium April 18, 2009 Photo-oxidation Process of Endocrine Disrupting Compounds in Water

  2. Intersex Characteristics in Fish Higher abundance of fish with intersex characteristics in presence of treated wastewater

  3. Endocrine Disrupting Compounds nonylphenol Derivatives in household products 17β-estradiol (E2) 17α-ethynyl estradiol (EE2) Present in birth control Mimics other EDCs

  4. Goals of Experiment • Determine kinetics of nonylphenol through H2O2 photolysis. • Show that NP can be quickly degraded using solar light in the presence of H2O2 .

  5. Experimental Set Up Sunlight or UV Lamp 26 mM NP Run reaction, Extract NP 50,75,100 mM H2O2 Analyze in Spectrophotometer or GC/MS Batch Reactor (600 mL)

  6. Results

  7. Conclusions • NP can be destroyed in a photochemical reaction with H2O2 in lab scale using UV and sun light. • Sunlight quickly degrades NP in a H2O2 photolysis reaction.

  8. Thanks • To Lab Group: Mario Rojas, Dr. Bob Arnold, Fernando Perez • Brian Barbaris for equipment, and roof access. • Mentor Desiree Polson and other interns • NASA Space Grant Internship Program

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