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Updated: Feb 13, 2026

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium
Published on: December 17, 2018
Removal of cadmium from aqueous solutions using industrial coal fly ash-nZVI
Lixia Ma1,2, Qi Wei1,2, Yueqin Chen2
1Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, People's Republic of China.
Abstract:
Batch experiments were conducted to test the effects of various solution properties, such as pH, temperature, initial concentration and anoxic and aerobic atmosphere, on Cd removal by nanoscale zerovalent iron (nZVI) supported on industrial coal fly ash. Cd (II) could be removed by adsorption on fly ash-nZVI in a very short time (5 min) with high removal rates (greater than 99.9%) over a wide range of concentration (5-100 mg l-1). Cd (II) was physically adsorbed on the surface of fly ash-nZVI. The preparation of fly ash-nZVI can incorporate the use of waste media, making the overall adsorbent more removal efficient and low cost.
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