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Adsorption of phenols by papermill sludges

TitleAdsorption of phenols by papermill sludges
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2002
AuthorsCalace, N., Nardi Elisa, Petronio B.M., and Pietroletti M.
JournalEnvironmental Pollution
Volume118
Pagination315-319
ISSN02697491
Keywords2, 2 chlorophenol, 2 nitrophenol, 3, 3 chlorophenol, 4, 4 chlorophenol, 4 dichlorophenol, 4 nitrophenol, 5 dichlorophenol, 5 trichlorophenol, Adsorption, Adsorption isotherms, article, Calibration, Chemical, diffusion, Environmental impact, industrial waste, isotherm, Kinetics, Models, Paper, Paper industry, Papermill sludges, phenol, phenol derivative, Phenols, physical chemistry, Sewage sludge, sludge, Sorption, Water Pollutants
Abstract

In this paper we studied the sorption capacity of paper mill sludges for phenols. Phenol, 2-chlorophenol (2-CP), 3-chlorophenol (3-CP), 4-chlorophenol (4-CP), 2-nitrophenol (2-NP), 4-nitrophenol (4-NP), 2,4-dichlorophenol (2,4-DCP), 3,4-dichlorophenol (3,4-DCP) 3,5-dichlorophenol (3,5-DCP) and 2,4,5-trichlorophenol (2,4,5-TCP) were chosen for the sorption tests. Kinetic experiments showed that substituted-phenol sorption on papermill sludge was rapid (equilibrium was reached after 3 h); conversely, the time taken by the phenol to reach equilibrium conditions was 260 h. Experimental data showed that particle diffusion was involved in the sorption process but was not the only rate-limiting mechanism; several other mechanisms were involved. The adsorption isotherms showed the following order of retention capacity of papermill sludge: 2-NP=4-NP< <2-CP

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0036110485&doi=10.1016%2fS0269-7491%2801%2900303-7&partnerID=40&md5=52f13a20807a920d4580cae016b24d53
DOI10.1016/S0269-7491(01)00303-7
Citation KeyCalace2002315