| Abstract | Gasification represents a viable solution for the treatment of biomass aiming at producing a
syngas with an overall conversion efficiency reaching the 75% level. Apart the syngas, the process
produces solid residuals (ashes and unburned carbon-char) as well as heavy hydrocarbons (tars)
that must be separated from the main gas flow. Here we present the outcomes of a gasification
treatment conducted on poplar biomass samples collected from a multi contaminated area of
Southern Italy restored by plant assisted bioremediation (PABR) aiming at reducing heavy metal
(HM) and PCB contents in the contaminated soil. Pruning residues were collected from the poplar
treated area located close to Taranto city. HM and PCB analyses were carried out to evaluate the
overall content of these contaminants in the biomass. This preliminary evaluation is necessary for
assessing the quality of the biomass and estimating the ensuing pollution in comparison with noncontaminated
biomass. In fact, at the moment, the PABR residuals are classified by the Italian
legislation as wastes and not as biomass usable for energy purposes when they are produced in
contaminated areas. Our aim is to indicate the specific additional treatments possibly required
for trapping HMs and PCBs in ashes, thus demonstrating that the PABR biomass gasification is
not more pollutant than non-contaminated biomass.
The gasification process was carried out in a lab-scale gasifier system, designed at the Faculty of
Civil and Industrial Engineering at Sapienza University of Rome. Moreover, we investigated the
catalytic effect (and its related impact) associated to the presence of HMs in the biomass as well
as the distribution of the HMs and PCBs among the ashes, filters and tars. |
| Text | 399383 2018 PCB Heavy metals syngas contaminated soil lab scale gasifier system Gasification treatments of poplar biomass produced in contaminated area recovered by plant assisted bioremediation Ancona V, Barra Caracciolo A, Borello D, Campanale C, De Caprariis B, Grenni P, Basile A, Uricchio VF V. Ancona, C. Campanale, B. De Caprariis A. Basile, V.F. Uricchio IRSA CNR, Bari A. Barra Caracciolo, P. Grenni IRSA CNR, Roma D. Borello Universita La Sapienza, Roma SDEWES 2018 Conference, Abstract Book M. Ban, N. Dui , A. Piacentino, D.R. Schneider, Z. Guzovi , A. Buonomano, F. Calise, G. Ciulla, S. Ferrari, S. Kalogirou, G. Kraja i , J.J. Kleme , H. Mikul i , G. Micale, L. Montorsi, A. Palombo, J. Post, P.S. Varbanov, G. Sannino, F. Tadeo, A. Tamburini, L. Vanoli, S. Vlachos, Q. Wang, J. Yang Published version ISSN 1847 7178 13th Conference on Sustainable Development of Energy, Water and Environment Systems Palermo 30/09/18 04/10/18 Internazionale Contributo Gasification represents a viable solution for the treatment of biomass aiming at producing a syngas with an overall conversion efficiency reaching the 75% level. Apart the syngas, the process produces solid residuals ashes and unburned carbon char as well as heavy hydrocarbons tars that must be separated from the main gas flow. Here we present the outcomes of a gasification treatment conducted on poplar biomass samples collected from a multi contaminated area of Southern Italy restored by plant assisted bioremediation PABR aiming at reducing heavy metal HM and PCB contents in the contaminated soil. Pruning residues were collected from the poplar treated area located close to Taranto city. HM and PCB analyses were carried out to evaluate the overall content of these contaminants in the biomass. This preliminary evaluation is necessary for assessing the quality of the biomass and estimating the ensuing pollution in comparison with noncontaminated biomass. In fact, at the moment, the PABR residuals are classified by the Italian legislation as wastes and not as biomass usable for energy purposes when they are produced in contaminated areas. Our aim is to indicate the specific additional treatments possibly required for trapping HMs and PCBs in ashes, thus demonstrating that the PABR biomass gasification is not more pollutant than non contaminated biomass. The gasification process was carried out in a lab scale gasifier system, designed at the Faculty of Civil and Industrial Engineering at Sapienza University of Rome. Moreover, we investigated the catalytic effect and its related impact associated to the presence of HMs in the biomass as well as the distribution of the HMs and PCBs among the ashes, filters and tars. Estratto Abstract Book Estratto SDEWES2018_BoA_Ancona.pdf Abstract in atti di convegno claudiacampanale CAMPANALE CLAUDIA vitofelice.uricchio URICCHIO VITO FELICE paola.grenni GRENNI PAOLA valeria.ancona ANCONA VALERIA TA.P04.005.011 Vulnerabilita degli ecosistemi delle acque sotterranee e attenuazione naturale degli inquinanti nel suolo e nel sottosuolo |
