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太湖沉积物再悬浮对双酚A吸附性能的影响

王鹏 李琼琼 蔡赟杰

水资源保护Issue(5):35-41,7.
水资源保护Issue(5):35-41,7.DOI:10.3880/j.issn.10046933.2015.05.007

太湖沉积物再悬浮对双酚A吸附性能的影响

Effect of sediment resuspension on BPAadsorption in Taihu Lake

王鹏 1李琼琼 2蔡赟杰3

作者信息

  • 1. 河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京 210098
  • 2. 河海大学环境学院,江苏南京 210098
  • 3. 河海大学环境学院,江苏南京 210098
  • 折叠

摘要

Abstract

The empirical relationship between shear stress simulated by PES( particle entrainment simulator) and rotating speed of thermostatic water bath oscillators was established and validated by experiment.Batch equilibrium experiments were performed to assess adsorption and sorption kinetics characteristics of BPA by sediment at different hydrodynamic conditions.The results indicated that the maximum sorption amount of BPA was not affected by shear stresses.The BPA adsorption process can be expected to better fit for the Freundlich isotherm model.The adsorption process was mainly fast adsorption, which account for 90%.Slow sorption ’ s contribution was very small.Shear stresses only played an important role in fast adsorption, its average adsorption rate was positive related with shear stresses.The adsorption kinetic curve can be fitted by the pseudo-second order model.

关键词

沉积物再悬浮/双酚A/吸附解吸作用/切应力/准二级动力学模型

Key words

sediment resuspension/bisphenol A/adsorption and desorption/shear stress/pseudo-second order model

分类

资源环境

引用本文复制引用

王鹏,李琼琼,蔡赟杰..太湖沉积物再悬浮对双酚A吸附性能的影响[J].水资源保护,2015,(5):35-41,7.

基金项目

国家水体污染控制与治理科技重大专项(2014ZX07101-011);“青蓝工程”资助项目 ()

水资源保护

OACSCDCSTPCD

1004-6933

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