Research article - Peer-reviewed, 2020
Use of lignocellulosic substrate colonized by oyster mushroom (Pleurotus ostreatus) for removal of organic micropollutants from water
Hultberg, Malin; Ahrens, Lutz; Golovko, OksanaAbstract
Efficient removal techniques are urgently needed to remove organic micropollutants (OMPs) from wastewater, in order to protect water resources. In this study, laccase activity of mushroom substrate colonized by Pleurotus ostreatus was evaluated as a novel wastewater treatment method for removal of OMPs, including diclofenac, bicalutamide, lamotrigine, and metformin at environmentally relevant concentrations. Laccase activity of the colonized mushroom substrate was found to be highest, 0.8 enzyme activity (U)/g mushroom substrate wet weight, immediately before initiation of fruiting body formation. The selected OMPs were treated for 5 min with suspensions of mushroom substrate with laccase activity of approximately 50 U/L. Removal of all OMPs was significant, with the highest removal for diclofenac of 90% compared with a control with uncolonized mushroom substrate. To our knowledge, direct use of colonized mushroom substrate in removing diclofenac from water has not been reported previously. Removal efficiency of bicalutamide, lamotrigine, and metformin was 43%, 73%, and 59%, respectively. This demonstrates potential for using mushroom substrate colonized by P. ostreatus for removal of OMPs from wastewater.Keywords
Pharmaceuticals; Laccase; Oyster mushroom; Spent mushroom substrate (SMS); Wastewater treatmentPublished in
Journal of Environmental Management2020, volume: 275, article number: 111087
Authors' information
Swedish University of Agricultural Sciences, Department of Biosystems and Technology
Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
Sustainable Development Goals
SDG6 Clean water
UKÄ Subject classification
Water Treatment
Publication Identifiers
DOI: https://doi.org/10.1016/j.jenvman.2020.111087
URI (permanent link to this page)
https://res.slu.se/id/publ/106852