运用丝状真菌生物质生物吸附镉(Ⅱ)污染物的研究

Advance in the Biosorption of Cadmium Contaminant Using Filamentous Fungal Biomass

丝状真菌生物质是研制可用作生物修复镉污染的生物吸附剂的重要生物材料。文章首先概述了镉的危害性与镉污染的真菌修复机制;列表比较了近20年研究中用于生物吸附Cd^(2+)的丝状真菌菌种资源、镉吸附量和工艺特性参数;详细阐明了利用丝状真菌生物质生物吸附法除镉工艺过程涉及的技术方法和基本原理,包括丝状真菌生物质材料的预处理方法,分批生物吸附除镉工艺的考虑因素及其影响效应,固定床吸附柱生物吸附除镉工艺,以及生物吸附法去除含镉工业废水中Cd^(2+)的实践效果。

Filamentous fungal biomass （FFB） is important biomaterial for preparing biosorbents that used for bioremediation of cadmium contaminant. The harmfulness of cadmium and mechanism for mycoremediation of cadmium contaminant were reviewed. A comparative list was done to show the filamentous fungi used for cadmium biosorption, their biosorption capacity and characteristic parameters involved in cadmium biosorption process in the last two decades. An effort was focused on the detailed elucidation upon the techniques and principles in treatment process for cadmium removal by biosorption process and their effects on cadmium biosorption capacity, cadmium removal by the fixed-bed adsorption columns filled with FFB, and the practice effects of cadmium removal from industrial effluent with cadmium contamination were described.