Page 82 - 2016地大报告-电子书

2016

can be described using the Michaelis-Menten model under different initial tetracycline

concentrations. When additional substrate was present, the substrate that caused increased

biomass resulted in a decreased biotransformation rate of tetracycline. According to disk

diffusion tests, the biotransformation products of tetracycline had lower antibiotic potency

than the parent compound. Six possible biotransformation products were identified, and

a potential biotransformation pathway was proposed that included sequential removal of

N-methyl, carbonyl, and amine function groups. Results from this study can lead to better

estimation of the fate and transport of antibiotics in the environment and has the potential to

be utilized in designing engineering processes to remove tetracycline from water and soil.

论文链接：https://doi.org/10.1016/j.jhazmat.2016.06.053

20. A mathematically continuous model for describing the hydraulic properties of

unsaturated porous media over the entire range of matric suctions

[ 2 ]
作 者：Wang, YQ( 王云权 ) [ 1 ] ; Ma, JZ (Ma, Jinzhu) ;Guan, HD (Guan, Huade) [ 3,4 ]
JOURNAL OF HYDROLOGY 卷 : 541 页 : 873-888 子辑 : B 出版年 : OCT 2016

摘 要 ：Recent studies suggest that water flow in unsaturated porous media extends
beyond the commonly known capillary-driven regime into the film regime. There is a need to

develop the unsaturated hydraulic properties over the entire range of matric suctions to capture

both flow regimes. In this study, Fredlund and Xing model is modified to represent the soil

water retention curve from saturation to oven dryness. The new function ismathematically dif

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