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2011 - Europe Direct Iasi

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R.33.<br />

Title<br />

Authors<br />

Institution<br />

Description<br />

EUROINVENT <strong>2011</strong><br />

contents of speciation and distribution forms of heavy<br />

metals – by atomic absorption, UV-VIS, IR and Raman<br />

spectrometry, electroanalytical methods (ion-selective<br />

sensors), optical and electronic microscopy; (iii) establish<br />

correlations between heavy metals contents and chemicalmineralogical<br />

components of soils – by geostatistic<br />

methods and theoretical modeling (thermidynamic and<br />

kinetic). The procedure described by invention includes<br />

methodological details for each work step and<br />

applicability limits for several heavy metals (Cd, Pb, Cr,<br />

Ni, Co) in case of soils cultivated with vegetables.<br />

Financial support for the studies was provided by the<br />

Ministry of Education and Research from Romania,<br />

ANCS – CNMP, grants PNCDI II no. 52-141 / 2008.<br />

Recuperative decontamination procedure of soils<br />

polluted with heavy metals by electro-kinetic methods<br />

Dumitru Bulgariu 1, 4 , Laura Bulgariu 2 , Dan Aştefanei 1 ,<br />

Ioan Sandu 3<br />

1<br />

”Al. I. Cuza” University of <strong>Iasi</strong>, Faculty of Geography<br />

and Geology, 2 Technical University Gheorghe Asachi<br />

of <strong>Iasi</strong>, Faculty of Chemical Engineering and<br />

Environmental Protection, 3 ”Al. I. Cuza” University of<br />

<strong>Iasi</strong>, Arheoinvest Interdisciplinary Platform,<br />

4<br />

Romanian Academy, Filial of <strong>Iasi</strong>, Collective of<br />

Geography<br />

The invention relates to a recuperative decontamination<br />

procedure of soils polluted with heavy metals by combining<br />

in a uniform process of three of the most effective<br />

decontamination method: electrokinetic, extraction and<br />

decontamination – chemo-remediation with ecological<br />

polymers. The procedure advantages are: (i) by optimizing<br />

the three methods in a single procedure was performed a<br />

technological, environmental and economic „compromise<br />

formula”, high as efficiency and cost, (ii) allows both the<br />

decontamination of polluted soils and partial recuperation of<br />

heavy metals, that their reintroduction into the economic<br />

circuit, (iii) good application potential (efficiency, selectivity,<br />

flexibility and adaptability), acceptable costs of<br />

implementation and exploitation. The procedure described in<br />

invention is based on: (i) controlled modification of physicalchemical<br />

properties of soil and of ionic species mobility by<br />

Innovative Researches<br />

158

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