Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Plant-assisted bioremediation as a green technology for recovering soil from PCB contamination |
| Abstract | Bioremediation is an increasingly popular alternative to conventional methods for treating waste compounds, in line with environmental sustainability, with the possibility to degrade contaminants using natural microbial activity mediated by different consortia of microbial strains. Among the techniques of so-called green remediation, plant-assisted bioremediation seems to be one of the most promising techniques. Plant-assisted bioremediation is a technology that exploits the synergistic actions that are established in the rhizosphere between plant roots and microorganisms in order to remove, transform or immobilize toxic substances. The presence of plant species through the roots promotes the modification of the physico-chemical properties of contaminated soils as well as the release of root exudates. Organic pollutants may be partially co-metabolic degraded by root enzymes and/or completely biodegraded by microorganisms in the rhizosphere. The phytoremediation effectiveness depend on the use of plant species tolerant to the toxic effects of contaminants in the soil and with roots able to promote the development of a microbial community capable of supporting the degradation of the contaminant in the rhizosphere. This technique is used in preliminary experiments, one in the field and in two in greenhouse, using a soil diffusely contaminated by PCBs in which different plant species were tested. In the field experiment, two tree species (Tamarix gallica and clone Monviso of the genus Populus), were used. At the same time, soil microcosms were set up in greenhouse in order to study in detail the possible PCB degradation processes that occur in the rhizosphere. For this purpose, some microcosms were prepared in the presence/absence of Medicago sativa specie and others in the presence of the Monviso clone, the same used in the field experiment. In this work we describe the various experiments and their main results. |
| Source | 24th SETAC Europe Annual Meeting, Basel, Switzerland, 11-15 May 2014 |
| Keywords | Plant-assisted bioremediationPopulusrhyzosphere microbial communityPCB |
| Year | 2014 |
| Type | Contributo in atti di convegno |
| Authors | Grenni P, Barra Caracciolo A, Massacci A |
| Text | 299011 2014 Plant assisted bioremediation Populus rhyzosphere microbial community PCB Plant assisted bioremediation as a green technology for recovering soil from PCB contamination Grenni P, Barra Caracciolo A, Massacci A irsa cnr, ibaf cnr Bioremediation is an increasingly popular alternative to conventional methods for treating waste compounds, in line with environmental sustainability, with the possibility to degrade contaminants using natural microbial activity mediated by different consortia of microbial strains. Among the techniques of so called green remediation, plant assisted bioremediation seems to be one of the most promising techniques. Plant assisted bioremediation is a technology that exploits the synergistic actions that are established in the rhizosphere between plant roots and microorganisms in order to remove, transform or immobilize toxic substances. The presence of plant species through the roots promotes the modification of the physico chemical properties of contaminated soils as well as the release of root exudates. Organic pollutants may be partially co metabolic degraded by root enzymes and/or completely biodegraded by microorganisms in the rhizosphere. The phytoremediation effectiveness depend on the use of plant species tolerant to the toxic effects of contaminants in the soil and with roots able to promote the development of a microbial community capable of supporting the degradation of the contaminant in the rhizosphere. This technique is used in preliminary experiments, one in the field and in two in greenhouse, using a soil diffusely contaminated by PCBs in which different plant species were tested. In the field experiment, two tree species Tamarix gallica and clone Monviso of the genus Populus , were used. At the same time, soil microcosms were set up in greenhouse in order to study in detail the possible PCB degradation processes that occur in the rhizosphere. For this purpose, some microcosms were prepared in the presence/absence of Medicago sativa specie and others in the presence of the Monviso clone, the same used in the field experiment. In this work we describe the various experiments and their main results. Science across bridges, borders and boundaries, Abstract Book https //c.ymcdn.com/sites/www.setac.org/resource/resmgr/Abstract_Books/SETAC Basel abstracts.pdf ISSN 2309 8031 24th SETAC Europe Annual Meeting Basel, Switzerland 11 15 May 2014 Internazionale Contributo ABSTRACT BOOK SETAC_Basel_abstractBookISSN 0.pdf Contributo in atti di convegno anna.barracaracciolo BARRA CARACCIOLO ANNA paola.grenni GRENNI PAOLA angelo.massacci MASSACCI ANGELO TA.P04.005.011 Vulnerabilita degli ecosistemi delle acque sotterranee e attenuazione naturale degli inquinanti nel suolo e nel sottosuolo |