Sökning: id:"swepub:oai:DiVA.org:uu-401666" >
Removal of diclofen...
Removal of diclofenac from a non-sterile aqueous system using Trametes versicolor with an emphasis on adsorption and biodegradation mechanisms
-
- Stenholm, Åke (författare)
- Uppsala universitet,Analytisk farmaceutisk kemi,GE Healthcare Biosci AB, Bjorkgatan 30, SE-75184 Uppsala, Sweden
-
- Hedeland, Mikael (författare)
- Uppsala universitet,Analytisk farmaceutisk kemi,Natl Vet Inst SVA, Dept Chem Environm & Feed Hyg, Uppsala, Sweden
-
- Arvidsson, Torbjörn (författare)
- Uppsala universitet,Analytisk farmaceutisk kemi,Med Prod Agcy, Uppsala, Sweden
-
visa fler...
-
- Pettersson, Curt E. (författare)
- Uppsala universitet,Analytisk farmaceutisk kemi
-
visa färre...
-
(creator_code:org_t)
- 2018-03-04
- 2019
- Engelska.
-
Ingår i: Environmental technology. - : Informa UK Limited. - 0959-3330 .- 1479-487X. ; 40:19, s. 2460-2472
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- This paper describes the search for procedures through which the xenobiotic pollutant diclofenac can be removed from non-sterile aquatic systems. Specifically, adsorption to solid supports (carriers) in combination with biodegradation by non-immobilized and immobilized white rot fungus Trametes versicolor were investigated. Batch experiments using polyurethane foam (PUF)-carriers resulted in 99.9% diclofenac removal after 4 h, with monolayer adsorption of diclofenac to carrier and glass surfaces accounting for most of the diclofenac decrease. Enzymatic reactions contributed less, accounting for approximately < 0.5% of this decrease. In bioreactor experiments using PUF-carriers, an initial 100% removal was achieved with biodegradation contributing approximately 7%. In batch experiments that utilized polyethylene-carriers with negligible immobilization of Trametes versicolor, a 98% total diclofenac removal was achieved after one week, with a biodegradation contribution of approximately 14%. Five novel enzyme-catalyzed biodegradation products were tentatively identified in the batch-wise and bioreactor experiments using full scan ultra-high-performance liquid chromatography-quadrupole/time of flight mass spectrometry. Both reduction and oxidation products were found, with the contents estimated to be at µg L-1 concentration levels.
Ämnesord
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
Nyckelord
- Diclofenac
- UHPLC-Q-TOF MS
- adsorption
- biodegradation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas