Results 41 to 50 of about 3,127 (199)

The effect of flotation cell shape on deinking behaviour [PDF]

open access: yes, 2001
Studies were undertaken to investigate the deinking behaviour of different shaped deinking cells of the same volume. For comparative purposes, most oprational variables were kept constant, and the same injector was used throughout the study. The position
Jones, Lewis, Walmsley, Michael R.W.
core   +1 more source

Internal Treatment of Process Waters in Paper Production by Dissolved Air Flotation with Newly Developed Chemicals. 1. Laboratory Tests [PDF]

open access: yes, 2009
New chemicals, based on the synergistic effect between inorganic polyaluminium salts and organic cationic polyelectrolytes, have been tested for the chemical optimization of a dissolved air flotation (DAF) unit, used as internal treatment of process ...
Blanco Suárez, Ángeles   +2 more
core   +1 more source

Characterization of a two‐phase hybrid flotation column

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study explored the performance of a novel hybrid flotation column, which combines the advantages of a mechanically agitated cell with a flotation column and compared the results with a conventional flotation column setup. The experiments were performed in an air/water two‐phase system under varying airflow rates, frother concentrations ...
Pedro Silva Aires   +3 more
wiley   +1 more source

An Analysis of the Wash and Flotation Deinking Processes [PDF]

open access: yes, 1989
The purpose of this paper is to obtain data, so that we may compare the ability of Floatation vs. Wash deinking to produce a paper of equal standards as the original unprinted base-stock.
Felgner, Brian L.
core   +1 more source

Stabilized Cellulase in Chitosan–Polyvinyl Alcohol Biopolymer Beads for Sustainable Enzymatic Deinking of Recycled Paper

open access: yesChemistryOpen, EarlyView.
A stable and reusable biocatalyst, cellulase@Cs/PVA/Ga, is engineered by immobilizing cellulase onto glutaraldehyde‐activated chitosan (Cs) and coating it with polyvinyl alcohol. This composite system enhances enzymatic stability and efficiency for the sustainable deinking of recycled newspaper, offering a green alternative to harsh chemical treatments.
Parisa Chakeri   +4 more
wiley   +1 more source

Preparation of cellulose nanocrystals from deinked waste newspaper and their usage for papermaking

open access: yesCarbohydrate Polymer Technologies and Applications, 2021
Cellulose nanocrystals (CNC) were successfully prepared from waste newspapers through a simple pretreatment and hydrolysis process. The Fourier transform infrared spectroscopy (FTIR) result for the CNC suggested that no new chemical bonds were formed ...
Ying Guan   +5 more
doaj   +1 more source

Deinking Agent for Waste Paper

open access: yesSen'i Gakkaishi, 1992
Waste papers are recycled by deinking. All over the world, the flotation method is the mainstream as the deinking method because of the advantages such as higher pulp yield, less use of water, less area for installation and less total reagent cost.
openaire   +2 more sources

The Effects of Cationic Valence on Wash Deinking of Newsprint [PDF]

open access: yes, 1981
The effects of cationic valence were tested against final pulp brightness in the wash deinking process on newsprint. The electrolytes used were AlCl3,CaCl2 and NaCl.
McEnroe, Lawrence E.
core   +1 more source

Addressing Favorable and Challenging Flexible Plastic Packaging Waste Flows: A Material Flow Analysis

open access: yesJournal of Advanced Manufacturing and Processing, Volume 7, Issue 3, July 2025.
ABSTRACT The majority of post‐consumer flexible plastic packaging (FPP) in the United States ends up in landfills and incinerators. This represents a significant material loss because FPP, also referred to as plastic films or foils, comprises up to half of all plastic packaging.
Oksana A. Makarova   +4 more
wiley   +1 more source

Effects of Some Commercial Enzymes in the Deinking of Newsprint [PDF]

open access: yes, 1972
The trend of industry, in general, today is one of recycling. This is brought about as a means of conserving our dwindling natural resources and to help abate the pollution problem.
Prickett, James O.
core   +1 more source

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