摘要
利用聚乙烯醇-海藻酸钠(PVA-Na.A lg)联合包埋固定化一株黄杆菌O il-56,进行污染地表水修复实验研究,结果表明固定化细菌的修复效果明显好于游离细菌。同时利用扫描电子显微镜观察了固定化颗粒内部细菌形态的变化,解释了由于Na.A lg溶解导致水体CODC r升高的原因,并分析了固定化颗粒传质扩散性能的缺陷,指出PVA-Na.A lg固定化工艺尚需改进。
The remediation of polluted surface water by immobilized Flavobacterium sp. Oil-56 using PVA-Na · Alg was studied. The results show that the remediation effect of immobilized bacteria is better than that of free cells. The SEM analysis of the particle microstructure showed the morphological changes of the immobilized F. Oil-56. The reason of CODCr rising was mainly caused by Na · Alg dissolving. The results also indicate that PVA-Na · Alg immobilization technology should be improved because of the particle＇s transferring and diffusing limitation.
出处
《化学工程》
CAS
CSCD
北大核心
2006年第5期54-57,共4页
Chemical Engineering(China)
基金
沈阳环境工程重点实验室基金项目(04002)
863项目(2002AA601022)
中俄自然资源与生态环境联合研究中心资助项目
关键词
PVA-Na·Alg固定
修复
传质扩散
污染地表水
PVA-NaAlg immobilization
remediation
transferring and diffusing
polluted surface water
