应用生物吸附剂技术处理中低放废液的研究

Application research on processing low-to-intermediate radioactive waste solution by biosorbent

利用高担子菌所含壳多糖的强吸附性能研制成功的生物吸附剂 ,以其具有对放射性核素的强选择性吸附能力、减容效果好和显著经济效益的优势 ,可用于处理中低放废液。迄今 ,已应用于对切尔诺贝利核事故核心区和若干核电站正常运行产生的核废液的处理 ,在俄罗斯、乌克兰、法国、芬兰等国家的应用研究中效果显著。我国自 1 999年引进该项技术以来 ,通过对BR厂YG废液和SG废水的吸附小试 ,验证了该吸附剂对Cs与Sr的吸附能力 ,查明了应用该生物吸附剂技术的最佳条件。目前 ,正积极筹备对SG废水的扩大规模台架试验。

The biosorbent that has been developed on the advantages of strong adsorption function of chitin contained in basidiomycetes,is characterized by its strong capability of selective adsorption,perfect effect to minimize the volume of waste,and may be applied to the processing of low to intermediate radioactive waste solution.Up to now,it has been used to process nuclear waste from the 'shelter' of the Chernobyl NPP and some nuclear energy stations during their normal operation,showing good results in its application and research in Russia,Ukrine,France,Finland,etc.Since the introduction of the basis of small scale adsorption tests for waste solution from BR plant and SG waste water the adsorption capability of the biosorbent has been examined,and optimum conditions for applying the above technology have been ascertained.At present,expanding the experiment on a semi industrial scale for SG waste water and selecting experiment facilities are being actively prepared.The technology is of perfect application prospect.