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CLASS 1 EUROINVENT 2010 CLASA 1<br />
(BET- izoterme de adsorbţie –desorbţie a azotului). Cele mai bune<br />
rezultate au fost obţinute pentru catalizatorul AlFe-SAz-1 PILC, în<br />
timp ce catalizatorii pe bază de Mt şi SWy-2 au prezentat<br />
caracteristici similare. Speciile active de fier au fost caracterizate<br />
prin spectroscopie de reflectanţă difuză în domeniu UV-VIS. Toţi<br />
catalizatorii au fost foarte activi permiţând degradarea completă a<br />
4-clorfenolului şi o scădere semnificativă a valorilor carbonului<br />
organic total (40%). Catalizatorul AlFe-Saz-1 a fost puţin mai<br />
activ decât omologii săi, fapt demonstrat de suprafaţa specifică<br />
mare şi structura mult mai ordonată, aşa cum arată datele DRX şi<br />
izotermele BET. Catalizatorii pe bază de Swy-2 şi Mt au<br />
caracteristici comparabile şi practic nu există nici o diferenţă în<br />
ceea ce priveşte perfomanţele lor catalitice pentru acest proces.<br />
1.4.<br />
Progress in assessment of ecological and health risk induced<br />
Title EN<br />
by persistent organic pollutants<br />
Progrese in evaluarea riscului ecologic si de sanatate induse<br />
Titlu RO<br />
de poulantii organici persistenti<br />
Florentina Anca Căliman, Brinduşa Mihaela Robu, Camelia<br />
Authors<br />
Smaranda, Lucian Vasile Pavel, Maria Gavrilescu<br />
“Gheorghe Asachi” Technical University of <strong>Iasi</strong>, Faculty of<br />
Institution<br />
Chemical Engineering and Environmental Protection<br />
Patent no. Pending<br />
Persistent organic pollutants are toxic substances that exhibit<br />
adverse effects upon the health of ecosystems, wildlife and humans.<br />
The greatest part of these pollutants is released into the aquatic<br />
environment and is finally incorporated into the sediments. The<br />
sediments may act, in their turn, as primary source of contaminants<br />
to the food chains, when sediment-associated POPs is characterized<br />
by high bioavailability. Lately, there were developed various<br />
methods and models to assess the ecological and health risk induced<br />
by POPs, such as: event tree analysis, quantitative risk analyses,<br />
mathematic methods and probabilistic modeling. Nowadays, the<br />
trend is to apply integrated methods for environmental impact and<br />
risk assessment. Thus, a new integrated method for assessing the<br />
Description impact and associated risk induced in the environment by pollution<br />
EN with POPs was developed as a combination between two methods:<br />
global pollution index and matrix of importance scale. An algorithm<br />
developed as software (SAB) can be applied to automatically<br />
quantify the environmental impacts and risks that arise from<br />
different situations. This new method has the advantages that it is<br />
very easy to be used by non environmental experts; it calculates the<br />
impacts and risks, correlated with measured concentrations of<br />
quality indicators for environmental component, considered<br />
representative in assessment process; its subjectivity is removed<br />
applying mathematical steps (SAB). Also, the lack of experience of<br />
evaluator doesn’t influence the evaluation results that will reflect<br />
the real situation from the evaluated site, where the industrial<br />
activities are performed.<br />
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