Experiment results showed that, PVA is a good kind of entrapping agent in the diffusion and it can protect the activity of microbial cell from the toxic.

• 经固定化颗粒传质试验与固定化细胞耐毒性试验，说明聚乙烯醇是一种对基质传质效果好，且能保护细胞活性免受水中毒性物质毒害的良好的包埋固定化材料。