Journal
CHEMOSPHERE
Volume 242, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2019.125165
Keywords
DOM; Biochar; Soil; BPS; Adsorption
Categories
Funding
- National Natural Science Foundation of China [51708301]
- Young Elite Scientists Sponsorship Program by Tianjin [TJSQNTJ-2018-06]
- Natural Science Foundation of Tianjin, China [17JCZDJC39500]
- 2017 Science and Technology Demonstration Project of Industrial Integration and Development, Tianjin, China [17ZXYENC00100]
- 2017 Jinnan District Science and Technology Project of Tianjin, China [20171505]
- Tianjin key research and development plan [17YFNZNC00040]
- Tianjin Natural Science Foundation [17JCTPJC50800]
- Fundamental Research Funds for the Central Universities
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Bisphenol S (BPS), regarded as a valid alternative to Bisphenol A (BPA), has been found to induce acute toxicity, genotoxicity. In this paper, BPS pollution was repaired by corn straw biochar, and the effect of dissolved organic matter (DOM) on the remediation mechanism was investigated. Different DOMs were obtained by decomposing corn straw in red soil, yellow soil and brown soil. The DOMs were characterized by Elemental analysis, Fourier infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (Uv-vis) spectroscopy, Three-dimensional excitation-emission matrix (3D-EEM). Different kinds of DOMs were added into the biochar adsorption system to determine the optimal pH, optimal dosage, equilibrium adsorption capacity, adsorption kinetics, adsorption isotherms, thermodynamic characteristics, and explore the influence mechanism of DOM on the adsorption of BPS by biochar. The results of the adsorption experiments showed that DOM would suppress the BPS adsorption capacity on biochar. In addition, the DOM, produced by decomposition of corn straw with brown soil, had the strongest inhibitory effect on adsorption, and red soil was the soil with the lowest inhibitory effect on organic pollution removal by biochar. (C) 2019 Elsevier Ltd. All rights reserved.
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