OHMi Estarreja

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  - L'OHMI - Estarreja a été créé pour étudier les multiples effets de l'activité industrielle dans la municipalité d'Estarreja, et pour contribuer à l'amélioration de la connaissance de ses effets et évaluer les progrès résultants des interventions d'atténuation déjà développées dans la région.
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  - L'OHM Estarreja étudie les multiples effets de l’activité industrielle développée sur la commune d’Estarreja, dans le but d’améliorer les connaissances sur ces effets, mais aussi d'évaluer l’évolution découlant des interventions de réhabilitation déjà entreprises dans cette zone.
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Chercher:	Effacer les filtres

Mots-clés	Biochar

Porteur	Session	Titre	Mots-clés	Résumé	OHM(s)
Afficher Total: 2
Pas d'enregistrements
Flavio Silva	2020	MOSAIC – Application of microbial-laden biochar as a proxy for long-term sustainability of contaminated soils	Bioremediation Biofilms Biochar Soil fertiliser Proof-of-concept	Over ten years the OHM-E has unravelled negative impacts of the industry on the quality of soils surrounding Estarreja. Yet, it is not all bad news. Previous research (DRuMBEAT) has conceptualized and tested a path for bioremediation of contaminated soils based on exploitation of their indigenous microbiomes coupled with biochar (pyrolysed biomass). Model organic contaminants in Estarreja-surrounding soils were successfully biodegraded by biochar-attached biofilms naturally engineered from contaminated soils, which proved them to be better adapted to inhibitory environments than those retrieved from “clean” sites. Though the hypotheses were successfully demonstrated, the biochar-microbial synergisms in contaminated soils surpassed the initial expectations by significantly boosting the biochemical activity, thus anticipating further benefits in development of a broader quality strategy for Estarreja soils. Additionally, biochar production can be tuned to target local-based feedstocks management, yield optimal porosity and redox chemistry to carry biofilms and immobilise contaminants, and provide further long-lasting fertilisation. While the former research answered to “How does it work?”, MOSAIC project aims at addressing “How feasible/profitable is it?” to consolidate and transfer the following purposes: (i) biochar can be produced from renewable feedstocks existing in Estarreja; (ii) pyrolysis parameters can be tuned to match both immobilisation of soil contaminants and controlled release of valuable plant nutrients; (iii) enhanced activity of the soil microorganisms enriched onto biochar benefits both soil remediation and fertility; and (iv) the microbial-laden biochar can turn into an innovative Estarreja-based fertiliser, providing that its agronomic value and cost-effectiveness are ensured through proper evaluation towards a proof-of-concept development.	OHM Estarreja		Afficher
Flavio Silva	2017	DRuMBEAT - Dirt-based microorganisms towards soil bioremediation of multiple contaminants	Bioremediation Multiple contaminants Biochar Mixed microbial cultures	While soils of Estarreja continue to be important sinks of persistent contaminants, existing remediation techniques are often ineffective and fail when addressing multiple contaminants. Biochar – biomass pyrolysed for enhancing carbon sequestration and other biomass productivity – presents a dual potential for improving soil decontamination: its exceptionally high porosity can both promote adsorption of contaminants and provide habitat conditions for microbial biofilm development. It is hypothesized that the microbiomes existing in contaminated soils present enhanced abilities to thrive under such adverse environments, thus allowing for a natural improvement of the ecosystem services provided by the soil. The proposed research aims at a novel technique for remediating soil contamination, through development of biochar-attached biofilms made of mixed microbial cultures taken from those “dirty” soils identified in Estarreja and stimulated to oxidize both organic and inorganic contaminants. The work programme encompasses: microbial fingerprinting of the contaminated soils, ex situ development of biofilms cultivated from those microbiomes onto biochar carriers and assessment of the contaminant uptake kinetics.	OHM Estarreja		Afficher

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