- Preparation of three-bore hollow fiber charged nanofiltration membrane for separation of organics and salts.
Preparation of three-bore hollow fiber charged nanofiltration membrane for separation of organics and salts.
Water science and technology : a journal of the International Association on Water Pollution Research (2011-12-17)
Jianmian Deng, Yatao Zhang, Jindun Liu, Haoqin Zhang
PMID22173422
RESUMEN
Three-bore hollow fiber charged nanofiltration (NF) membrane was prepared by interfacial polymerization (IP). The results showed that the flux and rejection of NF membrane prepared in this study increased with the increasing in the operating pressure. The water flux decreased and rejection for obvious dyes increased as the solute concentration increased. The separation factor for mixture of Xylenol orange/NaCl decreased when NaCl concentration in solution increased and could reach to as high as 18. In addition, three-bore hollow fiber charged nanofiltration membrane prepared in this study has excellent stability for strong acid (pH = 3), strong alkali (pH = 11) and high temperature solution (80 °C).
MATERIALES
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Sigma-Aldrich
Carbonato de sodio, ACS reagent (primary standard), anhydrous, 99.95-100.05% dry basis
Sigma-Aldrich
Carbonato de sodio, puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E500, anhydrous, 99.5-100.5% (calc. to the dried substance)
Sigma-Aldrich
Sodium carbonate monohydrate, puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E500, 99.5-100.5% (ex dried subst.)
Sigma-Aldrich
Carbonato de sodio, anhydrous, powder or granules, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%
Sigma-Aldrich
Carbonato de sodio, anhydrous, free-flowing, Redi-Dri™, ACS reagent (primary standard), 99.95-100.05% dry basis
Supelco
Carbonato de sodio concentrado, Na2CO3 72 mM in water, IC eluent concentrate (20x) for Metrosep A Supp 7