The results show that the immobilized microbial biomass made with biosorption-encapsulating-cross-linking method is better than free microbe on purifying SO2 either in liquid or gas phase.

• 实验表明，利用复合固定化方法即吸附-包理-交联法制备的固定化小球，与游离菌相比，对SO2的净化性能有显著提高。