Preparation of tungsten slag-bentonite particle adsorbent and its adsorption performance for lead ion from wastewater

Wei, Baodian; Xue, Zhixin; Yang, Yudong; Zhong, Xiaocong; Ren, Ru-shan; Wang, R.; Zhang, Kuifang

doi:10.1007/s11771-023-5351-3

Cited by 8 publications

(1 citation statement)

References 29 publications

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“…The utilization of tungsten residue or waste residues obtained following the extraction of valuable elements from tungsten residue as additives in semi-flexible pavements or raw materials for the production of other materials is a possible way to develop these residues as resources [96,97]. However, since tungsten residue is in its essence a hazardous waste, relevant studies are comparably rare.…”

Section: Preparation Of Materialsmentioning

confidence: 99%

Recent Advances in the Utilization of Tungsten Residue: A Mini Review of China

Deng,

Cheng,

et al. 2023

Metals

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As a metal of strategic value, tungsten plays an important part in civil and military applications. Currently, China is the biggest tungsten producer all over the world, and the metallic smelting technologies for tungsten are well established. However, the harmless recovery and treatment procedures for tungsten residue remain rather underdeveloped. The treatment of tungsten residue generally includes the recovery of valuable metals (e.g., scandium, tantalum, and niobium) and the solidification of toxic elements (e.g., arsenic, lead, and chromium), which may control the transfer of these elements and metals. If treated improperly, the resource of tungsten residue may be wasted, and potential environmental risks could arise. Therefore, the safe disposition of tungsten residue has become the limit factor and an urgent problem to be solved for the sustainable development of tungsten-related industries. In this regard, we reviewed the industrial background of tungsten and the composition and toxicity characteristics of tungsten residue. In addition, particular attention was paid to the harmless utilization processes and technologies for tungsten residue, which were then systematically compared in terms of the applicable situations as well as their advantages and shortcomings. Finally, the development trend for the harmless utilization of tungsten residue was discussed, and some proposals for further studies were provided.

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Section: Preparation Of Materialsmentioning

confidence: 99%