IF 3.1 2区 农林科学 Q1 FORESTRY
Antoni Sánchez-Ferrer, Jenifer Guerrero Parra
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引用次数: 0

摘要

在一些地区,地下水和地表水的微生物污染仍然是一个重大的公共卫生问题,每年导致约 505,000 人死亡,因此迫切需要方便、经济、简单的家庭水处理解决方案。这项研究调查了木材作为过滤系统的可行性,重点是木材去除纳米颗粒的能力。研究强调了木材过滤器的巨大潜力,特别是在径向和切向方向上,由于延长了停留时间和复杂的微结构,木材过滤器表现出卓越的颗粒去除能力(99%)。研究表明,在这项研究中,木材类型的选择,即黄杨(Liriodendron tulipifera)、欧洲山毛榉(Fagus sylvatica)、花旗松(Pseudotsuga menziesii)和银杉(Abies alba),对过滤效率起着至关重要的作用,其中山毛榉是与银杉并列的高性能选择。重要的是,我们确定了最佳的粒度排除范围(160-490 纳米),这有助于设计木质过滤器以实现特定的粒度降低目标。木质过滤器还显示出去除各种微生物(即细菌和原生动物)以及纳米塑料和微塑料的巨大潜力,这可能对水处理和环境修复产生深远影响。此外,该研究还强调了通过木材生物聚合物(即纤维素、半纤维素和木质素)的无定形结构域进行的吸附/扩散过程,该过程在静电相互作用的作用下提高了对小分子有机物的过滤效率,为研究过滤机制提供了宝贵的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Exploring wood as a sustainable solution for water filtration: nanoparticle removal, size exclusion and molecular adsorption

In regions where microbial contamination of groundwater and surface water remains a significant public health concern, leading to around 505,000 annual deaths, there is an urgent need for accessible, cost-effective, and simple household water treatment solutions. This study investigated the feasibility of wood as a filtration system, with a focus on its ability to remove nanoparticles. The research underscores the remarkable potential of wood filters, particularly in radial and tangential directions, exhibiting superior particle removal capabilities (> 99%) due to extended residence time and intricate microstructures. The study reveals that wood type selection in this study, i.e., yellow poplar (Liriodendron tulipifera), European beech (Fagus sylvatica), Douglas fir (Pseudotsuga menziesii), and silver fir (Abies alba), plays a crucial role in filtration efficiency, with beech emerging as a high-performing option alongside silver fir. Importantly, the optimal range of size exclusion was identified (160–490 nm), aiding in designing wood filters for specific particle size reduction goals. Wood filters also show great potential for removing a broad range of microorganisms, i.e., bacteria and protozoa, as well as nanoplastics and microplastics, which could have profound implications for water treatment and environmental remediation. Furthermore, the study highlights the adsorption/diffusion process through the amorphous domains of the wood biopolymers, i.e., cellulose, hemicelluloses and lignin, enhanced by electrostatic interactions in the filtration efficiency for small organic molecules, providing valuable insights into filtration mechanisms.

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来源期刊
Wood Science and Technology
Wood Science and Technology 工程技术-材料科学:纸与木材
CiteScore
5.90
自引率
5.90%
发文量
75
审稿时长
3 months
期刊介绍: Wood Science and Technology publishes original scientific research results and review papers covering the entire field of wood material science, wood components and wood based products. Subjects are wood biology and wood quality, wood physics and physical technologies, wood chemistry and chemical technologies. Latest advances in areas such as cell wall and wood formation; structural and chemical composition of wood and wood composites and their property relations; physical, mechanical and chemical characterization and relevant methodological developments, and microbiological degradation of wood and wood based products are reported. Topics related to wood technology include machining, gluing, and finishing, composite technology, wood modification, wood mechanics, creep and rheology, and the conversion of wood into pulp and biorefinery products.
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