Membrane distillation-crystallization of seawater reverse osmosis brines (Articolo in rivista)

Type
Label
  • Membrane distillation-crystallization of seawater reverse osmosis brines (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.seppur.2009.11.004 (literal)
Alternative label
  • Ji X., Curcio E., Al Obaidani S., Di Profio G. Fontananova E., Drioli, E. (2010)
    Membrane distillation-crystallization of seawater reverse osmosis brines
    in Separation and purification technology (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ji X., Curcio E., Al Obaidani S., Di Profio G. Fontananova E., Drioli, E. (literal)
Pagina inizio
  • 76 (literal)
Pagina fine
  • 82 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 71 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • Scopus (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Department of Chemical Engineering and Materials, University of Calabria, Rende (CS), Italy Institute on Membrane Technology ITM-CNR, Rende (CS), Italy Department of Mechanical and Industrial Engineering, Sultan Qaboos University, Oman (literal)
Titolo
  • Membrane distillation-crystallization of seawater reverse osmosis brines (literal)
Abstract
  • This work aims at investigating the performance, in terms of water recovery and NaCl crystallization kinetics, of a membrane distillation crystallization (MDC) bench-scale plant operated on brines discharged from a seawater reverse osmosis (RO) unit. Experimental tests carried out on artificial RO concentrates resulted in the production of 21 kg/m3 of NaCl crystals, exhibiting substantially a ordinary cubic shape with size between 20 and 200 m; the final water recovery factor increased up to 90%. Analogous investigations carried out on RO brines from natural seawater were affected by the presence of dissolved organic matter, showing a 20% reduction of the amount of salt crystallized, and a 8 decrease of the transmembrane flux. Growth rate of sodium chloride crystals generated from natural RO brines varied between 0.8×10 8 and 2.8×10 8 m s; these values were 15 23% lower than those measured for NaCl crystals grown form artificial concentrates. In general, the NaCl crystal size distribution was characterized by a narrow dispersion (coefficient of variation within 35 40%). MDC operations were stable over 100 h as a result of a careful control of supersaturation, polarization phenomena, nucleation process and hydrodynamics. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it