[Evolution of exchangeable fraction of trace metals (Pb, Cu, Zn and Cd) during composting of lagoon sludge] | Evolution de la fraction echangeable des elements metalliques traces (Pb, Cu, Zn et Cd) lors du compostage des boues de lagunage
1998
Echab, A. | Nejmeddine, A. | Hafidi, M. (Dept. de Biology, Marrakech (Morocco)) | Kaemmerer, M. | Guiresse, M. | Revel, J.C. (Ecole Nationale Superieure Agronomique de Toulouse (France))
إنجليزي. In the present work, composting effect of anaerobic lagoon sludge with wheat straw on the evolution of heavy metal (Pb, Cu, Zn and Cd) exchangeable fraction has been studied. Results show that this effect varied with the composting phase and the metal in question. Thus, at the end of stabilisation phase, there is a decrease of the exchangeable fraction rate of the four studied metals. During the maturation phase, the quantities of exchangeable Pb and Cu continue to decrease while those of Zn and Cd increase
اظهر المزيد [+] اقل [-]إيطالي. [Nel presente lavoro e' stato studiato l'effetto del compostaggio del fango di lagone anaerobico con paglia di frumento sull'evoluzione della frazione scambiabile di metalli pesanti (Pb, Cu, Zn e Cd). I risultati evidenziano che l'effetto variava con la fase del compostaggio e il metallo considerato. Cosi', alla fine della fase di stabilizzazione, si verifica una diminuzione del livello della frazione scambiabile dei quattro metalli studiati. Durante la fase di maturazione, le quantita' di Pb e Cu scambiabile continuano a diminuire, mentre quelle di Zn e Cd aumentano]
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Istituto di Servizi per il Mercato Agricolo Alimentare