Adsorptive removal of trace thallium(I) from wastewater: A review and new perspectives
Autor: | Yongxiang Yang, Zhuo Zhao, Yongpan Tian, Jinglin You, Liang Xu, Xue Hou, Yanhang Xiong, Cheng Xiankun |
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Rok vydání: | 2019 |
Předmět: |
Pollutant
021110 strategic defence & security studies Prussian blue Environmental Engineering Aqueous solution Health Toxicology and Mutagenesis 0211 other engineering and technologies chemistry.chemical_element 02 engineering and technology 010501 environmental sciences 01 natural sciences Pollution Industrial wastewater treatment chemistry.chemical_compound Adsorption Wastewater chemistry Environmental chemistry Smelting Environmental Chemistry Thallium Waste Management and Disposal 0105 earth and related environmental sciences |
Zdroj: | Journal of hazardous materials. 393 |
ISSN: | 1873-3336 |
Popis: | Thallium is an emerging pollutant reported in wastewater along with the increasing mining and smelting of thallium-containing ores in recent years. The complete removal of Tl(I) from wastewater is of significant emergency due to its high toxicity and mobility, however, Tl(I) removal is always confronted with numerous technical difficulties because of the extremely low Tl(I) concentration in wastewater and the disturbances of many accompanying impurity ions. Adsorption is currently the most widely used method for Tl(I) removal on industrial scale and varied kinds of adsorbents such as Prussian blue analogues, biosorbents, and metal oxides have been developed. However, the adsorption process of Tl(I) is always affected by the co-existing cations, resulting in low Tl(I) removal efficiency. Recently, the development of a variety of novel adsorbents or ion sensors based on macrocyclic compounds for enrichment and accurate determination of trace Tl(I) in aqueous solutions exhibits great potential for application in Tl(I) removal from wastewater with high selectivity and process efficiency. This paper provides an overview of the adsorption methods for Tl(I) removal from wastewater with emphasis on complexation properties between varied types of adsorbents and Tl(I). Future directions of research and development of adsorptive Tl(I) removal from industrial wastewater are proposed. |
Databáze: | OpenAIRE |
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