5 results
Search Results
2. Analysis of Paper Sludge Pellets for Energy Utilization.
- Author
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Nosek, Radovan, Holubcik, Michal, Jandacka, Jozef, and Radacovska, Lucia
- Subjects
- *
BIOENERGETICS , *PAPER industry , *THERMOGRAVIMETRY , *PULP mills , *WOOD pellets - Abstract
The pulp and paper industry in Europe produces over 11 million tons of waste per year. Given high landfill operational costs, thermal coprocessing with biomass may be a viable management and valorisation option for such wastes. In this work, the analysis of biomass (wood sawdust), mixture of primary and secondary pulp mill sludge and their respective blends (50 wt.%, 60 wt.%, 70 wt.% of sludge) was assessed by thermogravimetric analysis. One of the possibilities to ensure valorisation of paper pulp mill sludge is its combustion in the form of pellets containing a different amount of sludge. Production of pellets samples was realised on laboratory experimental device. The measurements showed that increasing the content of paper sludge in the produced pellets reduced the calorific value and increased the ash content. This research deals also with the effect of paper sludge on the ash melting temperatures. The results indicated that a higher content of paper sludge in the pellets increased the ash melting temperatures. This advantage of paper sludge can be utilized in co-combustion of biomass with a low ash melting temperature. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
3. Public Awareness of Paper's Sustainability in a Digital Society.
- Author
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Hye Jung Youn and Hak Lae Lee
- Subjects
- *
SUSTAINABILITY , *PAPER recycling , *PAPER industry , *AWARENESS , *RAW materials - Abstract
People often think of paper as an environmentally harmful product because trees are cut down to make it. A new generation that has grown up in today's digital society may think that the use of digital devices is a waste-free way to protect our environment. Although the pulp and paper industry is making various efforts to preserve the environment, it has not been properly recognized. Developing new technologies to produce better products at lower cost while protecting our environment is important. But it is also important to enhance the image of the pulp and paper industry in the eyes of the public. The pulp and paper industry's efforts to reforestation for raw materials and to expand the recycling of waste paper should be more widely introduced. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
4. Evaluation of Tea Wastes in Usage Pulp and Paper Production.
- Author
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Tutuş, Ahmet, Kazaskeroğlu, Yaşar, and Çiçekler, Mustafa
- Subjects
- *
PAPER industry , *WOOD-pulp , *AGRICULTURAL wastes , *CELLULOSE , *SULFATE pulping process , *ANTHRAQUINONES - Abstract
The objective of this study was to characterize the properties of pulp and paper produced from tea (Camellia sinensis) wastes, an agricultural residue widely available in Turkey, using the kraft-anthraquinone (AQ) cooking method. The chemical components and fiber morphology of tea wastes were investigated. The results indicated that tea wastes had low holocellulose, cellulose, and a-cellulose contents and high lignin content. Also, the suitability of the fiber for pulp and paper production was examined, and the fiber length, fiber width, lumen diameter, and cell wall thickness were measured. According to these values, it was found that the strength properties of papers obtained from tea wastes were insufficient. Therefore, tea waste pulps were mixed with Turkish pine pulps at various ratios. Twelve different cooking experiments were performed on the tea wastes, and the cooking with the best pulp yield was used for mixing. The second cooking, with 0.1% AQ, gave the best yield (33.26%), an increase of about 3.51% compared to the first cooking with no AQ. The physical and optical properties of the papers were also examined. Results showed that paper properties were improved by increasing the Turkish pine pulp rate. Consequently, tea wastes can be used in pulp and paper production when combined with softwood pulps. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
5. Paper Need Not Be Flat: Paper and Biomaterials Industries Need to Converge to Bring about True Innovation.
- Author
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Pal, Lokendra and Joyce, Margaret
- Subjects
- *
PAPER industry , *INNOVATIONS in business , *THREE-dimensional printing , *HOUSING development , *ENVIRONMENTAL impact analysis , *HOUSING & the environment - Abstract
Biomaterials and new processes (3D printing and flexible hybrid electronics) offer opportunities to break free from a 2D paper world by allowing for the development of smart multi-dimensional structures. While there has been recent progress reported in each of these areas of technology, to date, the merger of these technologies has been very limited. We believe that their merger offers boundless opportunities and an opportunity for the paper industry to innovate a low cost, sustainable housing solution capable of promoting the well-being of its occupants while minimizing the environmental impact of its daily use. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
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