环境工程学报2011，Vol.5Issue(4)：945-950,6.
一株高效微生物絮凝剂产生菌株P33的最优发酵条件和絮凝特性研究
Study on optimum fermentation conditions and flocculation characteristics of a high efficient microbial fiocculant-producing strain P33
摘要
Abstract
A bacteria strain, B-6-1, capable of producing a biofloeculant was isolated form activate sludge and the strain P33 was obtained by UV mutation technology which the yield of flocculants was 98.5％. It was identified as an Enterobacter based on its morphological and physiological characteristics. The replication stability test showed that the strain P33 fioceulation performance was good. The optimum fermentation conditions and flocculation characteristics tests of strain P33 showed that the optimum fermentation condition as follows: sucrose 20 g, urea 0.75 g, KH2PO4 2g, K2HPO4 5g, NaCl 0. 1 g, yeast 0.75 g per 1 L fermentation culture; pH 7 ～8,culture temperature 28 ℃, 160 r/min, culture time 20 h. The best fioeculation results for 100 mL oil refinery wastewater were obtained when 1％ (m/m) CaCl2 solution dosage was 3 mL, microbial flocculant was 0. 05 mL.关键词
微生物絮凝剂/絮凝率/发酵条件/絮凝条件Key words
microbial fiocculant/ fiocculation rate/ fermentation conditions/ fiocculation conditions分类
资源环境引用本文复制引用
赵东风,吴伟林,张云波,刘其友,孔瑛..一株高效微生物絮凝剂产生菌株P33的最优发酵条件和絮凝特性研究[J].环境工程学报,2011,5(4):945-950,6.基金项目
中国石油天然气股份有限公司化工与销售分公司科学研究与技术开发项目(0604C18-12) （0604C18-12）
中国石油天然气集团公司应用基础研究计划课题(06A50302) （06A50302）
