Advanced TiO2 and Al2O3 Modularized Adsorbents and Practical Application Strategies for Enhanced Arsenic Removal from Water

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

Water, Air, & Soil Pollution Pub Date : 2025-05-15 DOI:10.1007/s11270-025-08094-9

Younghee Jang, Sung Su Kim, D. Duc Nguyen

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引用次数: 0

Abstract

The increasing concentration of heavy metal contamination, especially arsenic, in water resources presents significant risks to both human health and overall water quality. This study examines the adsorption efficiency of TiO₂ and Al₂O₃ powders for arsenic removal from drinking water. Fourier-transform infrared spectroscopy, Brunauer–Emmett–Teller, and zeta potential were used to investigate the correlation between adsorbent properties and performance. Modularized adsorbents, specifically hollow-fiber and carbon block formats, were introduced and demonstrated outstanding arsenic removal efficiency. In particular, the TiO₂-based adsorbents achieved over 99.9% arsenic removal in simulated and actual drinking water. In a pilot test, the hollow-fiber module maintained complete removal for over 16 days using real groundwater. The study emphasizes the crucial role of surface charge and hydroxyl groups in arsenic adsorption, demonstrating the practical effectiveness of these innovative adsorbents in large-scale water purification systems.

Graphical Abstract

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新型TiO2和Al2O3模块化吸附剂及强化水中砷去除的实际应用策略

水资源中重金属污染，特别是砷的浓度日益增加，对人类健康和整体水质构成重大风险。研究了TiO2和Al2O3粉体对饮用水中砷的吸附效果。采用傅里叶变换红外光谱、布鲁诺尔-埃米特-泰勒光谱和泽塔电位等方法研究了吸附剂性能与吸附性能之间的关系。介绍了模块化吸附剂，特别是中空纤维和碳块形式，并展示了出色的砷去除效率。特别是，tio2基吸附剂在模拟和实际饮用水中的砷去除率均达到99.9%以上。在初步测试中，空心纤维模块在使用真实地下水的情况下保持了16天以上的完全去除效果。该研究强调了表面电荷和羟基在砷吸附中的关键作用，证明了这些创新吸附剂在大规模水净化系统中的实际有效性。图形抽象

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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.