Sorption of bisphenol A, 17α-ethinyl estradiol and phenanthrene on thermally and hydrothermally produced biochars
| Autor: | Mingxin Guo, Jeffrey M. Novak, Baoshan Xing, Ke Sun, Hamid Mashayekhi, Kyoung S. Ro |
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| Rok vydání: | 2011 |
| Předmět: |
Bisphenol A
Magnetic Resonance Spectroscopy Environmental Engineering Sorbent Renewable Energy Sustainability and the Environment Bioengineering Sorption General Medicine Phenanthrenes Phenanthrene Ethinyl Estradiol Hydrothermal circulation chemistry.chemical_compound Adsorption Phenols chemistry Environmental chemistry Biochar Thermodynamics Benzhydryl Compounds Waste Management and Disposal Pyrolysis Nuclear chemistry |
| Zdroj: | Bioresource Technology. 102:5757-5763 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2011.03.038 |
| Popis: | Thermal and hydrothermal biochars were characterized, and adsorption of bisphenol A (BPA), 17α-ethinyl estradiol (EE2) and phenanthrene (Phen) was determined to investigate the sorption characteristic difference between the two types of biochars. Thermal biochars were composed mostly of aromatic moieties, with low H/C and O/C ratios as compared to hydrothermal ones having diverse functional groups. Single-point organic carbon-normalized distribution coefficients (logK(OC)) of EE2 and BPA of hydrothermal biochars were higher than thermal biochars, while Phen logK(OC) values were comparable among them. X-ray diffraction and solid state nuclear magnetic resonance results suggested that hydrothermal biochars consisted of more amorphous aliphatic-C, possibly being responsible for their high sorption capacity of Phen. This study demonstrated that hydrothermal biochars could adsorb a wider spectrum of both polar and nonpolar organic contaminants than thermally produced biochars, suggesting that hydrothermal biochar derived from poultry and animal waste is a potential sorbent for agricultural and environmental applications. |
| Databáze: | OpenAIRE |
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