Bisphenol S Adsorption Behavior on Ferralsol and Biochar Modified Soil with Dissolved Organic Matter

Shiqiu Zhang, Xue Yang, Le Liu, Kui Zheng, Meiting Ju and Jinpeng Liu
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Shiqiu Zhang: College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Tianjin 300350, China
Xue Yang: College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Tianjin 300350, China
Le Liu: College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Tianjin 300350, China
Kui Zheng: Analytical and Testing Center, Southwest University of Science and Technology, Mianyang 621010, China
Meiting Ju: College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Tianjin 300350, China
Jinpeng Liu: College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Tianjin 300350, China

IJERPH, 2019, vol. 16, issue 5, 1-17

Abstract: Bisphenol S (BPs) has been found in a variety of common consumer products surrounding human living, despite the fact that it could damage the human digestive system and genital system. In China, straw-returning to the field is a common soil improvement technology used to increase the concentration of dissolved organic matter (DOM), which plays an important role in the natural environment as a microreactor of contaminants. Additionally, the biochar obtained by the straw is an effective soil conditioner. DOM is a key influencing factor when biochar is employed as the conditioner of BPs contaminated soil. However, the BPs adsorption behavior on the Ferralsol affected by DOM and biochar is also unclear. Hence, DOM was prepared and the effect of DOM on the BPs adsorption behavior on soil and biochar modified soil was investigated. DOM was characterized by Elemental analysis, Fourier transforming infrared spectra (FT-IR), and three-dimensional excitation-emission matrix spectra (3D-EEM). The results of the adsorption experiments indicated that both biochar and DOM could improve the BPs adsorption capacity in Ferralsol, while DOM suppressed the BPs adsorption capacity of biochar modified soil, indicating that DOM and BPs could not be applied at the same time for BPs adsorption.

Keywords: DOM; biochar; Ferralsol; BPs; adsorption (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
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