Changotra Rahil, Rajput Himadri, Liu Baoshu, Murray Gordon, He Quan Sophia
Department of Engineering, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada.
School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, China.
Chemosphere. 2024 Mar;352:141291. doi: 10.1016/j.chemosphere.2024.141291. Epub 2024 Jan 25.
Wood preservation has gained global prevalence in recent years, primarily owing to the renewable nature of wood and its capacity to act as a carbon sink. Wood, in its natural form, lacks intrinsic resilience and is prone to decay if left untreated; hence, wood preservatives (WPs) are used to improve wood's longevity. The fate and potential hazards of wood preservatives to human health, ecosystems, and the environment are complex and depend on various aspects, including the type of the preservative compounds, their physicochemical properties, application methods, exposure pathways, environmental conditions, and safety measures and guidelines. The occurrence and distribution of WPs in environmental matrices such as soil and water can result in hazardous pollutants seeping into surface water, groundwater, and soil, posing health hazards, and polluting the environment. Bioremediation is crucial to safeguarding the environment and effectively removing contaminants through hydrolytic and/or photochemical reactions. Phytoremediation, vermicomposting, and sustainable adsorption have demonstrated significant efficacy in the remediation of WPs in the natural environment. Adsorbents derived from biomass waste have been acknowledged for their ability to effectively remove WPs, while also offering cost-efficiency and environmental sustainability. This paper aims to identify wood preservatives' sources and fate in the environment and present a comprehensive overview of the latest advancements in environmentally friendly methods relevant to the removal of the commonly observed contaminants associated with WPs in environmental matrices.
近年来,木材防腐在全球范围内日益普遍,这主要归功于木材的可再生特性及其作为碳汇的能力。天然状态下的木材缺乏内在的耐久性,如果不进行处理,很容易腐烂;因此,使用木材防腐剂(WPs)来提高木材的使用寿命。木材防腐剂对人类健康、生态系统和环境的归宿及潜在危害是复杂的,并且取决于多个方面,包括防腐剂化合物的类型、它们的物理化学性质、应用方法、接触途径、环境条件以及安全措施和指南。木材防腐剂在土壤和水等环境基质中的存在和分布可能导致有害污染物渗入地表水、地下水和土壤,对健康构成危害并污染环境。生物修复对于保护环境以及通过水解和/或光化学反应有效去除污染物至关重要。植物修复、蚯蚓堆肥和可持续吸附在自然环境中对木材防腐剂的修复方面已显示出显著成效。源自生物质废物的吸附剂因其有效去除木材防腐剂的能力而受到认可,同时还具有成本效益和环境可持续性。本文旨在确定木材防腐剂在环境中的来源和归宿,并全面概述与去除环境基质中常见的与木材防腐剂相关污染物的环保方法的最新进展。