PAPERmaking! Vol10 Nr2 2024

PAPER making!

FROM THE PUBLISHERS OF PAPER TECHNOLOGY INTERNATIONAL ®

Volume 10, Number 2, 2024

Research on Recycling Various Wastes in Papermaking as Eco-Friendly Slurry

TENG YI, SHUENN-REN LIOU & WEN-YIH KUO

Waste recycling has always been a priority in the paper industry. In this study, the potential of translating various wastes in papermaking into building materials was separately evaluated. For the first time, the improvement of flexibility and sample texture after translating wastes into cementitious materials was analyzed. The results showed that 20% of the waste in alkali-activated slag slurry is the best proportion for papermaking. In addition, paper sludge and wood chips significantly improved the slurry flexibility while lime mud and bottom ash did not have this effect. Considering the effect of adding wood chips on the optimization of the sample texture, the most appropriate proportion of the paper sludge was 5% when the wood chips in the mixture were 15%. The most suitable alkali equivalent was 6%, with a silicate modulus of 0.9. According to the experimental results, wastes in papermaking had great potential for exploitation and application as circular materials. Contact information: Department of Architecture, National Cheng Kung University, 701 No. 1, East District, Tainan 701401, Taiwan.

Sustainability 2022, 14, 13536. https://www.mdpi.com/2071-1050/14/20/13536 Creative Commons Attribution 4.0 International License

The Paper Industry Technical Association (PITA) is an independent organisation which operates for the general benefit of its members – both individual and corporate – dedicated to promoting and improving the technical and scientific knowledge of those working in the UK pulp and paper industry. Formed in 1960, it serves the Industry, both manufacturers and suppliers, by providing a forum for members to meet and network; it organises visits, conferences and training seminars that cover all aspects of papermaking science. It also publishes the prestigious journal Paper Technology International ® and the PITA Annual Review , both sent free to members, and a range of other technical publications which include conference proceedings and the acclaimed Essential Guide to Aqueous Coating .

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Article 6 – Sustanability

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