In this paper an innovative process for the treatment of sediment polluted mainly by heavy metal is presented. A pilot project was carried out to investigate both the possibility of recovering sand from polluted dredging sediments and to permit the reuse of seawater. Hydrocyclone can provide adequate pre-treatment for particle sizing. Experimental tests show that hydrocyclone separation resulted in two bulk streams: sand and silt. The sand was cleaned and could be reused as building material. Moreover, heavy metal will be successfully concentrated in the silt fraction, which can be treated by means of ultrafiltration membrane process.
Experimental evaluation of an advanced treatment technology including membrane operation to reduce sediment contamination by heavy metal / DI PALMA, Luca; Iaquinta, Marie; Merli, Carlo. - ELETTRONICO. - (2006), pp. 46/1-46/6. (Intervento presentato al convegno International Conference on Polluted Sites Remediation BOSICON 2006 tenutosi a Roma nel Roma, 14-15 febbraio 2006).
Experimental evaluation of an advanced treatment technology including membrane operation to reduce sediment contamination by heavy metal
DI PALMA, Luca;IAQUINTA, Marie;MERLI, Carlo
2006
Abstract
In this paper an innovative process for the treatment of sediment polluted mainly by heavy metal is presented. A pilot project was carried out to investigate both the possibility of recovering sand from polluted dredging sediments and to permit the reuse of seawater. Hydrocyclone can provide adequate pre-treatment for particle sizing. Experimental tests show that hydrocyclone separation resulted in two bulk streams: sand and silt. The sand was cleaned and could be reused as building material. Moreover, heavy metal will be successfully concentrated in the silt fraction, which can be treated by means of ultrafiltration membrane process.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
