中国有色冶金

Beryllium is a kind of toxic metal that will cause significant harm to the human body. Industrial production will produce much beryllium wastewater, resulting in high ecological risk. Based on previous studies, this paper reviewed the advantages and disadvantages of different treatment methods (precipitation, adsorption, ion exchange, solvent extraction, and biological method) on the removal of beryllium from beryllium-containing wastewater in terms of material dosage, pH value required for treatment, treatment selectivity, removal efficiency, removal mechanism, and recovery performance. In order to provide reference for the development of green and efficient beryllium removal methods and comprehensive utilization of beryllium resources. The traditional precipitation method produces secondary pollution when treating beryllium wastewater, and the amount of precipitating agent is significant. Although the adsorption method can recover beryllium, the competitive ions impact the adsorption effect and the high adsorption cost. The development of new adsorption materials and the preparation of cheap adsorbents can improve its industrial application value. The ion exchange method can also recover beryllium, but the process wastewater is challenging to treat, and the resin is easy to oxidize and fail, and the cost is high. The solvent extraction method is mainly used in the extraction stage of mining processing and is unsuitable for treating industrial beryllium wastewater. Biosorbent materials based on biological modification have the advantages of low usage, a wide range of treatments, easy to cause secondary pollution and strong selective adsorption ability. Therefore, research and development of new treatment technology, seeking environmentally friendly, low price, excellent treatment performance of treatment methods, is needed to achieve efficient treatment of beryllium-containing wastewater development trends. The following points may be the focus of research: preparation of adsorbents with high selective adsorption properties for beryllium, such as adsorbents loaded with groups such as carbonate, phosphate, and hydroxyl; Developing biosorbents with high adsorption capacity; Combining the advantages of various treatment methods, a new treatment technology is developed.