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Adsorptive parametric pumping for the purification of phenolic effluents

Title
Adsorptive parametric pumping for the purification of phenolic effluents
Type
Article in International Scientific Journal
Year
1991
Authors
Ramalho, E
(Author)
Other
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Carlos Costa
(Author)
FEUP
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Alírio Rodrigues
(Author)
FEUP
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Grevillot, G
(Author)
Other
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Journal
Vol. 1
Pages: 99-107
ISSN: 0956-9618
Indexing
Other information
Authenticus ID: P-007-59Y
Abstract (EN): This paper deals with the recovery and/or purification of liquid streams containing phenol and p-nitrophenol with individual concentrations of 25 mg/l by adsorptive parametric pumping. The parametric pump operated in a direct mode, semicontinuous manner, with feed to the top reservoir. The adsorbent used was Duolite ES861 (a polystyrenic resin produced by Rohm and Haas) and temperatures of each half-cycle were 60 and 20°C. Basic data (adsorption equilibrium isotherms and mass capacity factors) were obtained from batch equilibrium experiments and fixed-bed runs (breakthrough curves). Under the experimental conditions used, we were able to concentrate the initial solution by a factor of 2-3 (final solution concentration in the top reservoir) and to produce a bottom product with concentrations of phenol and p-nitrophenol that are 2-3 orders of magnitude lower than the concentration of the feed solution. © 1991.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 9
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