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| Title:
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Determination of sorption of seventy five pharmaceuticals in sewage sludge |
| Type:
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Journal articleJournal article |
| Participant(s):
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Technical University of Denmark
Technical University of Denmark
Forfatter:
Grabic, Roman
Umeå University
Forfatter:
Fick, Jerker
Umeå University
Forfatter:
Tysklind, Mats
Umeå University
Forfatter:
Jansen, Jes la Cour
Lund University
Technical University of Denmark
Email:
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| Abstract:
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Sorption of 75 active pharmaceutical ingredients (APIs) to three different types of sludge
(primary sludge, secondary sludge with short and long sludge age respectively) were
investigated. To obtain the sorption isotherms batch studies with the APIs mixture were
performed in four nominal concentrations to water containing 1 g of sludge. The range of
APIs concentrations was between ng L1 to mg L1 which are found in the wastewater
effluents. Isotherms were obtained for approximately 45 of the APIs, providing distribution
coefficients for linear (Kd), Freundlich (Kf) and Langmuir (KL) isotherms. Kd, Kf and KL ranging
between 7.1 104 and 3.8 107, 1.1 102 and 6.1 104 and 9.2 103 and 1.1 L kg1,
respectively. The obtained coefficients were applied to estimate the fraction of APIs in the
water phase (see Abstract Graphic). For 37 of the 75 APIs, the predicted presence in the
liquid phase was estimated to >80%. 24 APIs were estimated to be present in the liquid
phase between 20 and 80%, and 14 APIs were found to have |
| Published:
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in journal: Water Research (ISSN: 0043-1354) (DOI: http://dx.doi.org/10.1016/j.watres.2011.05.033), vol: 45, issue: 15, pages: 4470-4482, 2011 |
| DOI:
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