Abstract
Flotation de-inking technology is used in the paper recycling process to preferentially remove hydrophobic contaminants, such as inks and toners from a slurry of fibers in water. In the process fine air bubbles are introduced into the suspension and the hydrophobic contaminants, preferentially attached to the bubble–water interface, are carried to the top of the flotation vessel and are skimmed away in a reject stream. Clean fibers are taken from another port of the vessel as the accept stream. This short article describes a simple, inexpensive method to execute in the laboratory a batch type flotation de-inking process on wastepaper. In the experiment, wastepaper is dispersed in water and then de-inked using a laboratory flotation apparatus readily assembled from common lab equipment. The product streams are collected on filter paper to determine the contaminant removal efficiency and the fiber yield. The experiment is useful for middle or high school science courses or introductory-level college environ...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
