Adsorption of Cu(II) and Pb(II) Onto a Histosol in Comparison with Its Humin Fraction

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Water, Air, & Soil Pollution Pub Date : 2025-04-17 DOI:10.1007/s11270-025-07993-1

Quynh Nguyen-Phuong, Stéphanie Sayen, Marie Ponthieu, Béatrice Marin, Emmanuel Guillon

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Abstract

This study investigated the adsorption of Cu²⁺ and Pb²⁺ onto a histosol (peat soil) as a function of pH and compared it to their adsorption onto its humin fraction. The use of the NICA-Donnan model, considering humic acid and humin as soil reactive solid phases and fulvic acid as reactive dissolved organic matter, satisfactorily described the adsorption behaviour of Cu²⁺ and Pb²⁺ onto histosol. Both metals were adsorbed mainly via carboxylic sites of both solid phases with a higher contribution of humic acid. Nevertheless, this study highlighted the significant role of humin, accounting for up to 37% of the overall metallic cation retention onto histosol. Thus, if not the most reactive solid organic matter fraction in soils, humin contributes notably to metal retention. Its contribution should thus be considered as a significant solid organic matter component of soils for a better description and prediction of metal trace element adsorption.

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组织溶胶对铜(II)和铅(II)的吸附与组织溶胶中铝馏分的比较

本研究研究了Cu2+和Pb2+在组织溶胶（泥炭土）上的吸附与pH的关系，并将其与在其人体组分上的吸附进行了比较。采用NICA-Donnan模型，将腐植酸和腐植酸作为土壤反应性固相，黄腐酸作为反应性溶解有机物，满意地描述了Cu2+和Pb2+在组织溶胶上的吸附行为。两种金属主要通过固相的羧基吸附，腐植酸的贡献较大。尽管如此，本研究强调了人蛋白的重要作用，占组织溶胶上金属阳离子保留总量的37%。因此，即使不是土壤中最活跃的固体有机质组分，人类对金属的保留也有显著的贡献。因此，为了更好地描述和预测金属微量元素的吸附，应将其作为土壤中重要的固体有机质组分。

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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.