摘要
通过土壤吸附试验研究不同级配土壤对双酚A(BPA)的吸附特性,并分析了土壤颗粒特性、水力特性与土壤吸附特性间的相关关系。试验结果表明:不同级配土壤对BPA的吸附均为非线性吸附,可用Freundlich吸附等温模型描述;粒径小于0.075 mm的土壤颗粒对BPA的吸附接近线性吸附,非线性因子为0.979;粒径0.01 mm以下颗粒质量分数与土壤吸附能力成正比;土壤吸附能力与土壤渗透系数大小成反比,随着渗透系数增大,土壤对BPA的吸附能力趋于恒定值。
The soil adsorption experiment is conducted to study the adsorption characteristics of bisphenol A(BPA)in different graded soils,and the relationships between soil particle characteristics,hydraulic characteristics and soil adsorption characteristics were analyzed.The experimental results showed that the adsorption of BPA in soils with different gradations was nonlinear adsorption and could be described by the Freundlich adsorption isotherm model.However,the adsorption of BPA by the soil with particle size less than 0.075 mm was close to the linear adsorption and the nonlinear factor was 0.979.The mass fraction of particles below 0.01 mm is directly proportional to the adsorption capacity.The soil adsorption was inversely proportional to the permeability coefficient of soil and the adsorption of BPA on the soil tended to be constant as the permeability coefficient increased.
作者
梁越
常雪岩
周洋
陈晴空
LIANG Yue;CHANG Xueyan;ZHOU Yang;CHEN Qingkong(National Engineering Research Center for Inland Waterway Regulation,Chongqing Jiaotong University,Chongqing 400074,China;School of River and Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China;Wenzhou Design Institute of Water Conservancy and Hydroelectric Power,Wenzhou 325000,China)
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2022年第1期91-95,共5页
Journal of Hohai University(Natural Sciences)
基金
“十三五”国家重点研发计划(2019YFC1510802)
重庆市基础研究与前沿探索项目(Cstc2018jcyjAX0559)
广东省水利科技创新项目(2020-13)。
关键词
双酚A
吸附特性
土壤级配
颗粒特性
渗透系数
BPA
adsorption characteristics
soil grading
particle characteristics
permeability coefficient
