Chlorination and chloramination of bisphenol A, bisphenol F, and bisphenol A diglycidyl ether in drinking water
| Autor: | Stephen J. Randtke, Rachael F. Lane, Craig D. Adams, Ray E. Carter |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Bisphenol A
Environmental Engineering Halogenation Bisphenol F chemistry.chemical_element Endocrine Disruptors Distribution system chemistry.chemical_compound Phenols Chlorine Organic chemistry Benzhydryl Compounds Waste Management and Disposal Bisphenol A diglycidyl ether Chloramination Water Science and Technology Civil and Structural Engineering Drinking Water Ecological Modeling Chloramines Temperature Epoxy Hydrogen-Ion Concentration Pollution Kinetics chemistry visual_art Ph range visual_art.visual_art_medium Epoxy Compounds Water Pollutants Chemical Nuclear chemistry |
| Zdroj: | Water Research. 79:68-78 |
| ISSN: | 0043-1354 |
| DOI: | 10.1016/j.watres.2015.04.014 |
| Popis: | Bisphenol A (BPA), bisphenol F (BPF), and bisphenol A diglycidyl ether (BADGE) are common components of epoxy coatings used in food packaging and in drinking water distribution systems. Thus, leachates from the epoxy may be exposed to the disinfectants free chlorine (Cl 2 /HOCl/OCl − ) and monochloramine (MCA, NH 2 Cl). Bisphenols are known endocrine disrupting chemicals (EDC) with estrogenic activity. Chlorination by-products have the potential to have reduced or enhanced estrogenic qualities, and are, therefore, of interest. In this work, chlorination reactions for bisphenols and BADGE were explored (via LC/MS/MS) and kinetic modeling (using a pseudo-first order approach) was conducted to predict the fate of these compounds in drinking water. The half-lives of BPA and BPF with 1 mg/L of free chlorine ranged from 3 to 35 min over the pH range from 6 to 11 and the temperature range of 10–25 °C. Half-lives for reactions of BPA and BPF with a nominal MCA concentration of 3.5 mg/L as Cl 2 were from 1 to 10 days and were greater at higher pH and lower temperature. Formation of chlorinated bisphenol A by-products was observed during the kinetic studies. BADGE was found unreactive with either oxidant. |
| Databáze: | OpenAIRE |
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