Co-Transport of Tire Wear Particles with Cd2+ and Ni2+ in Porous Media: Impact of Adsorption Affinity and Desorption Hysteresis

IF 3.8 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2024-10-03 DOI:10.1007/s11270-024-07546-y

Shaoxin Zi, Xiangtao Jiang, Yao Chen, Yingxin Zhang, Yuting Zhang, Jiale Xu, Jin Liu

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Abstract

The environmental implications of tire wear particles (TWPs) have been extensively studied. One notable concern associated with nano-sized TWPs is their potential role as carriers that enhance the spread of co-occurring pollutants, especially in the context of aging processes. This study demonstrated how exposure to acid, ultraviolet (UV) radiation, or ozone (O₃) induced alterations in the physico-chemical properties of TWPs, consequently increasing their mobility within saturated sand environments. In cotransport cases, both original TWPs and aged TWPs inhibited the transport of Cd²⁺ and Ni²⁺ in different degrees, whereas no obvious changes in their intrinsic mobilities. The contaminant-mobilizing ability of TWPs followed the order of original TWPs/UV-TWPs < H⁺-TWPs < O₃-TWPs. Experimental results and model-based analyses indicated the important role of mobility, adsorption affinity and desorption hysteresis in the cotransport of TWPs and heavy metals. In comparison with original TWPs, the adsorption affinity of H⁺-TWPs and O₃-TWPs for Cd²⁺/Ni²⁺ decreased, while that of UV-TWPs was similar to original TWPs. Simultaneously, the desorption rates of TWPs decreased to different extents after aging. The results of this study provide valuable insights on the fate of aged TWPs and their interactions with heavy metals in the natural environment, and help assess the environmental behavior and contaminant mobilization capacity of TWPs, especially considering the distinct effects of different aging processes. It is imperative to emphasise the necessity for targeted management strategies to transport the environmental impacts of TWPs, particularly as they age and interact with heavy metals.

Graphical Abstract

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轮胎磨损颗粒与 Cd2+ 和 Ni2+ 在多孔介质中的共传输：吸附亲和力和解吸滞后的影响

轮胎磨损颗粒（TWPs）对环境的影响已被广泛研究。与纳米级 TWPs 有关的一个值得关注的问题是它们作为载体的潜在作用，这种作用会增强共存污染物的扩散，尤其是在老化过程中。本研究证明了暴露于酸、紫外线（UV）辐射或臭氧（O3）环境中如何引起 TWPs 物理化学性质的改变，从而增加它们在饱和砂环境中的流动性。在共迁移情况下，原始 TWPs 和老化 TWPs 都不同程度地抑制了 Cd2+ 和 Ni2+ 的迁移，但其内在迁移率没有发生明显变化。TWPs对污染物的迁移能力依次为原始TWPs/UV-TWPs < H+-TWPs < O3-TWPs。实验结果和基于模型的分析表明，迁移率、吸附亲和力和解吸滞后在 TWPs 与重金属的共迁移中起着重要作用。与原始 TWPs 相比，H+-TWPs 和 O3-TWPs 对 Cd2+/Ni2+ 的吸附亲和力下降，而 UV-TWPs 对 Cd2+/Ni2+ 的吸附亲和力与原始 TWPs 相似。同时，老化后 TWPs 的解吸率也有不同程度的下降。这项研究的结果为了解老化 TWPs 在自然环境中的命运及其与重金属的相互作用提供了宝贵的见解，并有助于评估 TWPs 的环境行为和污染物迁移能力，特别是考虑到不同老化过程的不同影响。当务之急是强调有必要制定有针对性的管理策略，以消除 TWPs 对环境的影响，特别是当它们老化并与重金属相互作用时。

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.