title: Phytoremediation-biorefinery tandem for effective clean-up of metal contaminated soil and biomass valorisation.
abstract: During the last few decades, phytoremediation process has attracted much attention because of the growing concerns about the deteriorating quality of soil caused by anthropogenic activities. Here, a tandem phytoremediation/biorefinery process was proposed as a way to turn phytoremediation into a viable commercial method by producing valuable chemicals in addition to cleaned soil. Two agricultural plants (Sinapis alba and Helianthus annuus) were grown in moderately contaminated soil with ca. 100 ppm of Ni and further degraded by a fungal lignin degrader-Phanerochaete chrysosporium. Several parameters have been studied, including the viability of plants, biomass yield, and their accumulating and remediating potentials. Further, downstream processing showed that up to 80% of Ni can be easily extracted from contaminated biomass by aqueous extraction at mild conditions. Finally, it was demonstrated that the growth of plants on the contaminated soil could be degraded by P. chrysosporium, and the effect of nickel and biomass pretreatment on the solid-state fermentation was studied. The proposed and studied methodology in this work could pave the way for successful commercialization of the phytoremediation process in the near future.
authors.affiliation: a Warwick Manufacturing Group , University of Warwick , Coventry , UK.
authors.forename: Maria
authors.initials: M
authors.lastname: Sotenko
authors.affiliation: a Warwick Manufacturing Group , University of Warwick , Coventry , UK.
authors.forename: Stuart
authors.initials: S
authors.lastname: Coles
authors.affiliation: b School of Life Sciences , University of Warwick , Coventry , UK.
authors.forename: Guy
authors.initials: G
authors.lastname: Barker
authors.affiliation: c Department of Chemistry , University of Warwick , Coventry , UK.
authors.forename: Lijiang
authors.initials: L
authors.lastname: Song
authors.affiliation: d Centre for Bioenergy & Resource Management , Cranfield University , Cranfield , UK.
authors.forename: Ying
authors.initials: Y
authors.lastname: Jiang
authors.affiliation: d Centre for Bioenergy & Resource Management , Cranfield University , Cranfield , UK.
authors.forename: Philip
authors.initials: P
authors.lastname: Longhurst
authors.affiliation: e Nikolaev Institute of Inorganic Chemistry , Siberian Branch of Russian Academy of Sciences , Novosibirsk , Russian Federation.|f Faculty of Natural Sciences , Novosibirsk State University , Novosibirsk , Russian Federation.
authors.forename: Tamara
authors.identifier: http://orcid.org/0000-0003-4385-6477
authors.initials: T
authors.lastname: Romanova
authors.affiliation: e Nikolaev Institute of Inorganic Chemistry , Siberian Branch of Russian Academy of Sciences , Novosibirsk , Russian Federation.|f Faculty of Natural Sciences , Novosibirsk State University , Novosibirsk , Russian Federation.
authors.forename: Olga
authors.identifier: http://orcid.org/0000-0002-9579-301X
authors.initials: O
authors.lastname: Shuvaeva
authors.affiliation: a Warwick Manufacturing Group , University of Warwick , Coventry , UK.
authors.forename: Kerry
authors.initials: K
authors.lastname: Kirwan
mesh_terms: D000383:Agriculture; D001673:Biodegradation, Environmental; D018533:Biomass; D006368:Helianthus; D008670:Metals; D009532:Nickel; D012987:Soil; D012989:Soil Pollutants
chemical_list: D008670:Metals; D012987:Soil; D012989:Soil Pollutants; D009532:Nickel
keywords: Phanerochaete chrysosporium; biorefinery; lignocellulose degradation; metal accumulating plants; nickel; phytoremediation