Production of recycled paper using harmless municipal sludge as a new biomass filler

IF 0.9 4区农林科学 Q3 MATERIALS SCIENCE, PAPER & WOOD

Nordic Pulp & Paper Research Journal Pub Date : 2024-04-15 DOI:10.1515/npprj-2024-0007

Hao Sun, Xiyu Chen, Lingjun Wei, Jieyu Cui, Wanlu Zhang, Longfei Liu

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引用次数: 0

Abstract

Due to a shortage of resources, exploring new biomass fillers has become critical for paper making. In this study, we reported an eco-friendly strategy for fabricating low-cost and efficient recycled paper with high mechanical properties using corrugated cardboard waste paper and harmless municipal sludge (HMS). First, the characteristics of HMS, including the particle size, pH, specific surface area, organic functional groups and organic component content, were analyzed. Then, the influence of the amount of HMS on the properties of the recycled paper was studied. Finally, the strengthening mechanism of biomass filling recycled paper was discussed. The results showed that HMS, a biomass filler for recycled paper preparation, exhibited excellent physical and chemical properties, with a median particle size of 6.395 μm, a surface area of 39.974 m2 g−1 and organic functional groups. The tensile index of the recycled paper with 30 % HMS was 13.10 Nm/g, which was 16.4 % greater than that of the unfilled paper and showed better thermal stability. This excellent performance could be attributed to the uniform distribution of HMS on the fiber surface, which improved the accessibility of hydrogen bond formation between fibers. Thus, this study proved that HMS was an excellent biomass filler for producing recycled paper.

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利用无害市政污泥作为新的生物质填料生产再生纸

由于资源短缺，探索新的生物质填料已成为造纸的关键。在这项研究中，我们报告了一种利用瓦楞纸板废纸和无害市政污泥（HMS）制造具有高机械性能的低成本高效再生纸的环保策略。首先，分析了无害市政污泥的粒度、pH 值、比表面积、有机官能团和有机成分含量等特性。然后，研究了 HMS 的用量对再生纸性能的影响。最后，讨论了生物质填充再生纸的强化机理。结果表明，HMS 作为一种用于再生纸制备的生物质填料，具有优异的物理和化学特性，其中位粒径为 6.395 μm，比表面积为 39.974 m2 g-1，并含有有机官能团。含 30% HMS 的再生纸的抗张指数为 13.10 Nm/g，比未填充纸的抗张指数高出 16.4%，并表现出更好的热稳定性。这种优异的性能可归因于 HMS 在纤维表面的均匀分布，从而提高了纤维间形成氢键的可能性。因此，这项研究证明了 HMS 是生产再生纸的一种出色的生物质填料。

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来源期刊

Nordic Pulp & Paper Research Journal 工程技术-材料科学：纸与木材

CiteScore

2.50

自引率

16.70%

发文量

审稿时长

1 months

期刊介绍： Nordic Pulp & Paper Research Journal (NPPRJ) is a peer-reviewed, international scientific journal covering to-date science and technology research in the areas of wood-based biomass: Pulp and paper: products and processes Wood constituents: characterization and nanotechnologies Bio-refining, recovery and energy issues Utilization of side-streams from pulping processes Novel fibre-based, sustainable and smart materials. The editors and the publisher are committed to high quality standards and rapid handling of the peer review and publication processes. Topics Cutting-edge topics such as, but not limited to, the following: Biorefining, energy issues Wood fibre characterization and nanotechnology Side-streams and new products from wood pulping processes Mechanical pulping Chemical pulping, recovery and bleaching Paper technology Paper chemistry and physics Coating Paper-ink-interactions Recycling Environmental issues.