Surface Flocculation as a New Tool for Controlling Adsorption Processes

Surface Flocculation as a New Tool for Controlling Adsorption Processes

The dyeing of modified pulp, particularly with regard to the mechanism involved, was studied. The reaction mechanism for the modification of cellulose fibres in aqueous solution by cationic agents was also described. The results obtained were expressed in the form of adsorption isotherms. The captur...

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Main Authors: Miloslav Milichovský, Bretislav Češek
Format: Article
Language:English
Published: Hindawi - SAGE Publishing 2002-11-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1260/02636170260555796
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spelling doaj-7cad394139f847e3904bbdc47cfcbb3f2021-04-02T11:45:19ZengHindawi - SAGE PublishingAdsorption Science & Technology0263-61742048-40382002-11-012010.1260/02636170260555796Surface Flocculation as a New Tool for Controlling Adsorption ProcessesMiloslav MilichovskýBretislav ČešekThe dyeing of modified pulp, particularly with regard to the mechanism involved, was studied. The reaction mechanism for the modification of cellulose fibres in aqueous solution by cationic agents was also described. The results obtained were expressed in the form of adsorption isotherms. The capture of molecules, colloidal particles, etc. during the adsorption processes involving modified pulp could be explained by two possible mechanisms: (i) aggregation (coagulation or flocculation) in solution followed by adsorption and (ii) surface aggregation (coagulation or flocculation). Surface aggregation appeared to be the most likely for pulp with a low degree of modification. The typical Langmuir adsorption isotherm correlated the data obtained for unmodified pulp very well.https://doi.org/10.1260/02636170260555796
collection DOAJ
language English
format Article
sources DOAJ
author Miloslav Milichovský
Bretislav Češek
spellingShingle Miloslav Milichovský
Bretislav Češek
Surface Flocculation as a New Tool for Controlling Adsorption Processes
Adsorption Science & Technology
author_facet Miloslav Milichovský
Bretislav Češek
author_sort Miloslav Milichovský
title Surface Flocculation as a New Tool for Controlling Adsorption Processes
title_short Surface Flocculation as a New Tool for Controlling Adsorption Processes
title_full Surface Flocculation as a New Tool for Controlling Adsorption Processes
title_fullStr Surface Flocculation as a New Tool for Controlling Adsorption Processes
title_full_unstemmed Surface Flocculation as a New Tool for Controlling Adsorption Processes
title_sort surface flocculation as a new tool for controlling adsorption processes
publisher Hindawi - SAGE Publishing
series Adsorption Science & Technology
issn 0263-6174
2048-4038
publishDate 2002-11-01
description The dyeing of modified pulp, particularly with regard to the mechanism involved, was studied. The reaction mechanism for the modification of cellulose fibres in aqueous solution by cationic agents was also described. The results obtained were expressed in the form of adsorption isotherms. The capture of molecules, colloidal particles, etc. during the adsorption processes involving modified pulp could be explained by two possible mechanisms: (i) aggregation (coagulation or flocculation) in solution followed by adsorption and (ii) surface aggregation (coagulation or flocculation). Surface aggregation appeared to be the most likely for pulp with a low degree of modification. The typical Langmuir adsorption isotherm correlated the data obtained for unmodified pulp very well.
url https://doi.org/10.1260/02636170260555796
work_keys_str_mv AT miloslavmilichovsky surfaceflocculationasanewtoolforcontrollingadsorptionprocesses
AT bretislavcesek surfaceflocculationasanewtoolforcontrollingadsorptionprocesses
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