Removal of Two Polycyclic Musks in Sewage Treatment Plants: Freely Dissolved and Total Concentrations
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- 作者：Elsa Artola-Garicano ; Iris Borkent ; Joop L. M. Hermens ; and Wouter H. J. Vaes
- 刊名：Environmental Science & Technology
- 出版年：2003
- 出版时间：July 15, 2003
- 年：2003
- 卷：37
- 期：14
- 页码：3111 - 3116
- 全文大小：89K
- 年卷期：v.37,no.14(July 15, 2003)
- ISSN：1520-5851
文摘
In the current study, the removal of slowly degradablehydrophobic chemicals in sewage treatment plants (STPs)has been evaluated with emphasis on the combinationof free and total concentration data. Free and totalconcentrations of two polycyclic musks were determinedin each compartment of four STPs. The free concentrationof the polycyclic musks remains virtually constant throughoutall the compartments of the STPs with values between0.21 and 0.57 
g/L for AHTN and between 0.79 and 2.0 g/Lfor HHCB. Total concentrations of these fragrances arehighly dependent on the volatile solids in a given compartmentresulting in much more variation with values between0.42 and 92 g/L for AHTN and between 1.25 and 258 g/Lfor HHCB. It is concluded that free concentrations ofthese hydrophobic chemicals in the compartments of STPsare mostly biodegradation mediated, while total concentrations are mediated by the concentration of solids. Thecombination of measurements of free and total concentrationscan improve estimations regarding removal efficiencyand removal pathways.
g/L for AHTN and between 0.79 and 2.0 g/Lfor HHCB. Total concentrations of these fragrances arehighly dependent on the volatile solids in a given compartmentresulting in much more variation with values between0.42 and 92 g/L for AHTN and between 1.25 and 258 g/Lfor HHCB. It is concluded that free concentrations ofthese hydrophobic chemicals in the compartments of STPsare mostly biodegradation mediated, while total concentrations are mediated by the concentration of solids. Thecombination of measurements of free and total concentrationscan improve estimations regarding removal efficiencyand removal pathways.