Sammanfattning

One of the main challenges in both the design of new wastewater treatment plants and the expansion and improvement of existing ones is the removal of emerging pollutants. Therefore, the search for economic and sustainable treatments is needed to enhance the removal of pharmaceuticals. The potential of a lignocellulosic substrate colonized by Pleurotus ostreatus, a waste from mushroom production, to remove fluoxetine from aqueous solutions was studied. Batch assays were performed to remove 600 µg∙L⁻¹ fluoxetine from aqueous solutions using the colonized mushroom substrate (CMS) and crude enzyme extracts. The removal efficiencies achieved were, respectively, ≥83.1% and 19.6% in 10 min. Batch assays with sterilized CMS and 1-aminobenzotriazole (to inhibit cytochrome P450 enzymes) showed that the higher removal efficiencies achieved in the CMS assays may be attributed to the synergistic contribution of biosorption onto the CMS and lignin modifying enzymes activity, namely laccase activity. A column assay was performed with the CMS, fed with 750 µg∙L⁻¹ fluoxetine aqueous solution. The removal efficiency was 100% during 30 min, decreasing to a final value of 70% after 8 h of operation. The results suggested that CMS can be a promising eco-friendly alternative to remove fluoxetine from aqueous solutions.

Nyckelord

crude enzyme extracts; laccase activity; mycoremediation; pharmaceuticals; colonized mushroom substrate; tertiary treatment

Publicerad i

International Journal of Environmental Research and Public Health
2022, Volym: 19, nummer: 5, artikelnummer: 2672

SLU författare

• Hultberg, Malin

  • Institutionen för biosystem och teknologi, Sveriges lantbruksuniversitet
    

Associerade SLU-program

SLU Nätverk växtskydd


Globala målen

Säkerställa tillgången till och en hållbar förvaltning av vatten och sanitet för alla
Säkerställa hållbara konsumtions- och produktionsmönster


UKÄ forskningsämne

Miljövetenskap


Publikationens identifierare

DOI: https://doi.org/10.3390/ijerph19052672

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/116216