| Title | NATURE BASED SOLUTIONS FOR RESTORING A MULTI-CONTAMINATED SOIL: A MICROCOSM STUDY WITH BRASSICA NAPUS |
| Abstract | Over the years, many plant species have been studied to find the ones that can best be used in PlantAssisted BioRemediation (PABR) techniques. The PABR has established itself as one of the most ecosustainable and effective methods to recovery contaminated areas, thanks to the processes promoted by the interactions established between root system and soil rhizosphere microorganisms (Ancona et al. 2022). Plant species belonging to the Brassicaceae family are the most studied for the recovery of contaminated areas. The interest is due to their capability to be moderate tolerant to the contaminants present in the environment and to phytoextract pollutants (especially heavy metals), accumulating them in their epigeal tissues (Belouchrani et al. 2016; Angelova et al. 2017). Among these, the use of Brassica napus L. has been particularly thorough also due to the possibility of reusing its biomass for the production of secondary valuable products, such as oil for biofuel and ethanol (Park et al. 2012; Dhiman et al. 2016). To enhance the efficiency of PABR, the addition of organic amendments was extensively tested. In fact, it was studied that organic matters, such as compost or biochar, are useful to improve soil chemical-physical and microbiological properties and, consequently, to stimulate the pollutants' degradation or extraction (Ancona et al. 2022). In the present study, three series of soil microcosms have been performed at greenhouse scale. Brassica napus L. was growth in a soil historically contaminated by polychlorobyphenils (PCBs) and heavy metals (HMs). Compost and biochar were tested as amendments (10% and 2.5%, respectively). Three conditions were set up, each with and without plant, as control (Fig.1): contaminated soil, contaminated soil + compost, contaminated soil + biochar. At each sampling times (0, 60 and 90 days) each condition was analysed in triplicate. Chemical-physical analyses (pH, electric conductivity, available phosphorus, organic carbon), microbiological and molecular analyses (microbial abundance, community structure and dehydrogenase activity) and contaminants analyses (PCBs, HMs) were carried out on soil at the different sampling times. To evaluate the uptake, contaminants were also investigated in plant tissues (roots, stem, leaves and flowers). |
| Source | 8th European Bioremediation Conference (EBC-VIII), Crete, 12-17/06/2022 |
| Keywords | nature based solutionsmicrocosmmutui-contaminated soilbrassica napus |
| Year | 2022 |
| Type | Contributo in atti di convegno |
| Authors | Valeria Ancona 1, Giorgia Aimola 1 , Angela Gatto 1 , Vito Alessio Lacirignola 2 , Daniela Napolitano 2 , Paola Grenni 3 , Gian Luigi Garbini 3 , Daniela Losacco 1 , Stefano Convertini 4 , Pasquale Mariano Carmignano 4 , Vito Felice Uricchio 1 and Anna Barra Caracciolo 3 |
| Text | 468590 2022 nature based solutions microcosm mutui contaminated soil brassica napus NATURE BASED SOLUTIONS FOR RESTORING A MULTI CONTAMINATED SOIL A MICROCOSM STUDY WITH BRASSICA NAPUS Valeria Ancona 1, Giorgia Aimola 1 , Angela Gatto 1 , Vito Alessio Lacirignola 2 , Daniela Napolitano 2 , Paola Grenni 3 , Gian Luigi Garbini 3 , Daniela Losacco 1 , Stefano Convertini 4 , Pasquale Mariano Carmignano 4 , Vito Felice Uricchio 1 and Anna Barra Caracciolo 3 1 Water Research Institute, National Research Council IRSA CNR Bari, Italy 2 CISA SpA, Massafra TA , Italy 3 Water Research Institute, National Research Council IRSA CNR Montelibretti, Rome, Italy 4 ReAgri srl, Massafra TA , Italy Over the years, many plant species have been studied to find the ones that can best be used in PlantAssisted BioRemediation PABR techniques. The PABR has established itself as one of the most ecosustainable and effective methods to recovery contaminated areas, thanks to the processes promoted by the interactions established between root system and soil rhizosphere microorganisms Ancona et al. 2022 . Plant species belonging to the Brassicaceae family are the most studied for the recovery of contaminated areas. The interest is due to their capability to be moderate tolerant to the contaminants present in the environment and to phytoextract pollutants especially heavy metals , accumulating them in their epigeal tissues Belouchrani et al. 2016; Angelova et al. 2017 . Among these, the use of Brassica napus L. has been particularly thorough also due to the possibility of reusing its biomass for the production of secondary valuable products, such as oil for biofuel and ethanol Park et al. 2012; Dhiman et al. 2016 . To enhance the efficiency of PABR, the addition of organic amendments was extensively tested. In fact, it was studied that organic matters, such as compost or biochar, are useful to improve soil chemical physical and microbiological properties and, consequently, to stimulate the pollutants degradation or extraction Ancona et al. 2022 . In the present study, three series of soil microcosms have been performed at greenhouse scale. Brassica napus L. was growth in a soil historically contaminated by polychlorobyphenils PCBs and heavy metals HMs . Compost and biochar were tested as amendments 10% and 2.5%, respectively . Three conditions were set up, each with and without plant, as control Fig.1 contaminated soil, contaminated soil compost, contaminated soil biochar. At each sampling times 0, 60 and 90 days each condition was analysed in triplicate. Chemical physical analyses pH, electric conductivity, available phosphorus, organic carbon , microbiological and molecular analyses microbial abundance, community structure and dehydrogenase activity and contaminants analyses PCBs, HMs were carried out on soil at the different sampling times. To evaluate the uptake, contaminants were also investigated in plant tissues roots, stem, leaves and flowers . 8th European Bioremediation Conference EBC VIII e Book of Abstracts N. Kalogerakis, Technical University of Crete Greece F. Fava, University of Bologna Italy 978 618 5558 01 7 Published version 8th European Bioremediation Conference EBC VIII Crete 12 17/06/2022 Internazionale Contributo Contributo in atti di convegno danielalosacco LOSACCO DANIELA GARBINI GIAN LUIGI giorgiaaimola AIMOLA GIORGIA angela.gatto GATTO ANGELA vitofelice.uricchio URICCHIO VITO FELICE anna.barracaracciolo BARRA CARACCIOLO ANNA paola.grenni GRENNI PAOLA valeria.ancona ANCONA VALERIA |
