Surfactant enhanced ultrafiltration for the removal of inorganic phosphorous compounds from aqueous solutions_
Author(s) -
Justyna Górna,
Katarzyna Majewska-Nowak
Publication year - 2013
Publication title -
environment protection engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.189
H-Index - 21
eISSN - 2450-260X
pISSN - 0324-8828
DOI - 10.37190/epe130314
Subject(s) - ultrafiltration (renal) , chemistry , aqueous solution , pulmonary surfactant , critical micelle concentration , cationic polymerization , phosphate , membrane , micelle , chromatography , chloride , nuclear chemistry , inorganic chemistry , polymer chemistry , organic chemistry , biochemistry
The usability of the micellar enhanced ultrafiltration (MEUF) for removal of phosphates from aqueous solutions has been evaluated. The process was performed with the use of polyethersulfone membranes under various transmembrane pressures (0.1, 0.15, and 0.2 MPa). Phosphorous solutions containing 15 mg of 3 3 4 PO /dm − and two cationic surfactants: octadecylamine acetate (ODA) and hexadecylpyridium chloride (CPC) were used in the tests. The concentration of ODA and CPC amounted to 2 and 3 CMC (Critical Micelle Concentration) as well as 2, 3 and 6 CMC, respectively. The results of the study showed that the surfactant type and its concentration influenced the process efficiency. The phosphate removal with the use of ODA was approximately 95%, whereas application of CPC gave unsatisfactory results.
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