Influence of the presence of heavy metals and surface-active compounds on the sorption of bisphenol A to sediment

Chemosphere. 2007 Jul;68(7):1298-303. doi: 10.1016/j.chemosphere.2007.01.045. Epub 2007 Mar 9.

Abstract

The effects of different heavy metals (Cd, Pb), cationic surfactants cetyltrimethylammonium bromide (CTAB), anionic surfactant sodium dodecylbenzenesulfonate (SDBS) and the chemistry of the solution (pH and ionic strength) on the sorption of bisphenol A (BPA) to sediment were studied. Results showed that the presence of Cd and Pb caused a significant increase on the sorption of BPA to sediment and the sorption isotherms were in good agreement with Freundlich equation. The effect of surfactants on the adsorption of BPA onto sediment was found to strongly depend on the type of the surfactants. The presence of CTAB promoted BPA sorption and the amount of BPA adsorbed onto sediment increased linearly with concentration of CTAB. In contrast, the presence of anionic surfactant (SDBS) caused a slight reduction on the sorption of BPA. It was also found that the sorption behavior of BPA was affected by solution pH and ionic strength. The larger amount of BPA was absorbed with higher ionic strength and lower pH. This study may provide important insights into the understanding of the transport and fate of BPA in the environment.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Benzenesulfonates / chemistry
  • Benzhydryl Compounds
  • Cadmium / chemistry
  • Cetrimonium
  • Cetrimonium Compounds / chemistry
  • Environmental Monitoring / methods
  • Geologic Sediments / chemistry*
  • Hydrogen-Ion Concentration
  • Lead / chemistry
  • Metals, Heavy / chemistry*
  • Phenols / chemistry*
  • Surface-Active Agents / chemistry*

Substances

  • Benzenesulfonates
  • Benzhydryl Compounds
  • Cetrimonium Compounds
  • Metals, Heavy
  • Phenols
  • Surface-Active Agents
  • Cadmium
  • Lead
  • dodecylbenzenesulfonic acid
  • bisphenol A
  • Cetrimonium