Ultrafine polysaccharide nanofibers (cellulose and chitin) with 510 nm diams. were used as barrier layers in a new class of thinfilm nanofibrous composite (TFNC) membranes for water purifn. In addn. to concn. the polysaccharide nanofiber coating suspension viscosity was affected by pH and ionic strength. Service en ligne; les entreprise mat¨ riaux moulin algerie ...