title: Application of fly ash as an adsorbent for Estradiol in animal waste.
abstract: The contamination of agricultural ground with estrogen compounds through application of animal wastes is a present concern. At the same time, current uses for waste fly ash having high carbon content are limited. To help mitigate these problems, we examine using waste fly ash as a useful adsorbent for Estradiol in pig waste digests. In this study, Estradiol was added to vials containing water and fly ash from several different power plants. After an extraction process, the amount of Estradiol in the water was measured. Commercial activated carbon was also used for comparison purposes. Vials containing varying concentrations of Estradiol and no trapping material were used as a control. The results from this study indicate that fly ash can be used as a trapping material for Estradiol in water, but that commercially available activated carbon can trap about an order of magnitude more Estradiol than the fly ash and that the effects of the fly ash matrix can both inhibit and promote the solvation of Estradiol into water depending possibly upon pH and cation concentration effects. In addition, preliminary extraction studies using pig waste digest indicate that fly ash can be used as adsorbent for Estradiol present in pig waste.
authors.affiliation: Advanced Materials Institute, Western Kentucky University, 2413 Nashville Rd., Bowling Green, KY 42101, USA. Electronic address: ami@wku.edu.
authors.forename: Pauline
authors.initials: P
authors.lastname: Norris
authors.affiliation: Advanced Materials Institute, Western Kentucky University, 2413 Nashville Rd., Bowling Green, KY 42101, USA.
authors.forename: Stephanie
authors.initials: S
authors.lastname: Hagan
authors.affiliation: Institute for Combustion Science and Environmental Technology, Western Kentucky University, 2413 Nashville Rd., Bowling Green, KY 42101, USA.
authors.forename: Martin
authors.initials: M
authors.lastname: Cohron
authors.affiliation: Institute for Combustion Science and Environmental Technology, Western Kentucky University, 2413 Nashville Rd., Bowling Green, KY 42101, USA.
authors.forename: Houying
authors.initials: H
authors.lastname: Zhao
authors.affiliation: Institute for Combustion Science and Environmental Technology, Western Kentucky University, 2413 Nashville Rd., Bowling Green, KY 42101, USA.
authors.forename: Wei-Ping
authors.initials: WP
authors.lastname: Pan
authors.affiliation: West Virginia University, P.O. Box 6201, Morgantown, WV 26506, USA.
authors.forename: Kawang
authors.initials: K
authors.lastname: Li
mesh_terms: D000818:Animals; D002244:Carbon / Q000737:chemistry; D005591:Chemical Fractionation / Q000379:methods*; D060729:Coal Ash / Q000737:chemistry*; D004958:Estradiol / Q000737:chemistry / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D008372:Manure; D011210:Power Plants; D013552:Swine; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D060729:Coal Ash; D008372:Manure; D014874:Water Pollutants, Chemical; D004958:Estradiol; D002244:Carbon
keywords: Adsorption; Estradiol; Fly ash; Pig waste