《Table 2–Freundlich parameters of estrogens (E2 and E1) sorption in the presence and absence of bioc

  提示：宽带有限、当前游客访问压缩模式

本系列图表出处文件名：随高清版一同展现

《Effect of biochar on fate and transport of manure-borne estrogens in sandy soil》

1. 获取 高清版本忘记账户？点击这里登录

1. 下载图表忘记账户？点击这里登录

The effective distribution coefficient（Kdeff）values of SB treatments were significantly higher（H0:p<0.05）than soil treatment（Table 2）.Although both biochars effectively improved retention of estrogens in soil，the sorption coefficients of both estrogens were significantly（p<0.05）higher in SBS450than SBH750.The sorption behavior of biochars is a function of the physiochemical and structural characteristics（Kim et al.，2016）.The elemental composition of BS450with lower H/C molar ratio（0.34）than that of BH750（0.55）confirms the higher aromaticity of BS450with more organic carbon（Jung et al.，2013）.The enhanced sorption sites of biochar with lower H/C molar ratios are correlated to their higher carbon content（Salvia et al.，2014；Zheng et al.，2010）.Similarly，Hao et al.（2013）correlated the increased adsorption of atrazine on corncob biochars with decreased H/C and（O+N）/C ratios.The higher aromaticity of BS450enhanced the interaction of both estrogens with aromatic adsorptive sites of biochar viaп-пelectron donor-acceptor interactions resulting in higher Kf values（Kupryianchyk et al.，2016）.