聚乙烯醇-碳化硅新型微生物固定材料的制备及表征  

Study on polyvinyl alcohol induced microorganism immobilization in porous silicon carbide

作　　者：黄凤萍[1] 樊英鸽[1] 孙晶晶[1] 王保和[1] 

机构地区：[1]教育部轻化工助剂化学与技术重点实验室,陕西科技大学,西安710021

出　　处：《化工新型材料》2012年第11期107-109,共3页New Chemical Materials

基　　金：温州科技局支持项目

摘　　要：采用浸渍方法将聚乙烯醇涂敷于多孔碳化硅板表面制备负载诱导膜的多孔材料,借助载体结合法将活性污泥固定在其上,通过检测固定微生物对COD的降解来表征不同条件下PVA诱导膜上微生物的固定量。结果表明:PVA对微生物的固定有一定的诱导作用;PVA的pH值和浓度不同,微生物的固定情况也不同,微生物在PVA诱导膜固定的适宜条件为pH=7,浓度为5%。通过扫描电镜证实PVA可以很好地涂敷在多孔碳化硅板表面,并且有大量微生物固定在PVA诱导膜上。Polyvinyl alcohol（PVA） adopted dipping method to coat on the surface of porous silicon carbide plate form load-induced membrane.Activated sludge will be fixed on it combined with the carrier method.PVA induced membrane to immobilized microorganism characterized by measuring the COD under different pH and concentration conditions.The results showed that： PVA had a certain influence on immobilized microorganism.Under different pH and concentration conditions,there were different amounts of immobilized microorganism.The suitable conditions of microorganisms in PVA-induced immobilization were pH=7,the concentration of 5%.Confirmed by scanning electron microscopy can be PVA coating the surface of the porous silicon carbide plate,and a large number of microorganisms immobilized in PVA induced membrane.

关 键 词：诱导膜 细胞固定 多孔碳化硅 聚乙烯醇 

分 类 号：TB383.4[一般工业技术—材料科学与工程]