基本信息:
- 专利标题： 一种抑制聚乙烯醇固定化微生物颗粒水溶膨胀性的方法
- 专利标题（英）：Process for inhibiting water-soluble expansibility of polyvinyl alcohol immobilized microorganism particles
- 申请号：CN200610011608.X 申请日：2006-04-07
- 公开(公告)号：CN1844381A 公开(公告)日：2006-10-11
- 发明人： 王建龙 , 吴迪 , 胡俊
- 申请人： 清华大学
- 申请人地址： 北京市100084-82信箱
- 专利权人： 清华大学
- 当前专利权人： 清华大学
- 当前专利权人地址： 北京市100084-82信箱
- 主分类号： C12N11/04
- IPC分类号： C12N11/04 ; C12N11/08 ; C02F3/10
This invention relates to a method for suppressing water-soluble dilatability of polyvinyl alcohol immobilized microbial particles, belonging to the biotechnological field. Said method can efficiently suppress the water-soluble dilatability by means of adding (2%-6%) SiO2 during the cross link process of PVA-H3BO3. The mechanical strength of microgel particles can be further improved by soaking the obtained immobilized microbial particles in the Na2HPO4-KH2PO4 buffer for 2 hours. The heating temperature of the water bath is 90-95deg C, and the pH of the Na2HPO4-KH2PO4 buffer is around 7. The invention is characterized in that it can efficiently reduce the water-soluble dilatability of the immobilized microbial particles, improve the mechanic strength, bioactivity and durability thereof. By using the immobilization method of this invent to embed immobilized activated sludge, the immobilized activated sludge particles can be used as biosensitive elements of BOD biosensor fast analyzer.
公开/授权文献:
- CN100404674C 一种抑制聚乙烯醇固定化微生物颗粒水溶膨胀性的方法 公开/授权日：2008-07-23