降解六价铬的常见方法及其吸附法的研究进展

Research Progress of Common Methods for Degradation of Hexavalent Chromium and Its Adsorption Method

随着近几年工业的快速发展,重金属铬污染日益严重。因此,铬废水的处理问题值得人们重视。目前,用于处理含铬废水的方法主要有化学沉淀法、离子交换法以及吸附法等。吸附法利用吸附剂的孔隙率高、比表面积大、表面活性好等优点对污染物进行去除。常用的吸附剂有活性炭、金属氢氧化物、高分子和生物炭等。该方法由于操作过程简单、效果佳、成本低等优点,在处理六价铬方面具有较好的应用前景。

In recent years, the rapid development of industry has led to increasingly serious pollution of heavy metal chromium. Therefore, the treatment of chromium wastewater deserves attention. Currently, the main methods used to treat chromium wastewater are chemical precipitation, ion exchange, and adsorption. Adsorption involves the use of adsorbents with high porosity, large specific surface area, good surface activity, and other advantages to remove pollutants. Commonly used adsorbents include activated carbon, metal hydroxides, polymers, and biochar. This method has the advantages of a simple operational process, good effect, low cost, and more, and has a good application prospect in the treatment of hexavalent chromium.