应用青霉菌BX1活体吸附水中活性艳蓝KN-R  

Decolorization of Reactive Blue KN-R by Penicillium oxalicum BX1 Adsorption

作　　者：张书军[1] 杨敏[1] 辛宝平[1] 刘宏波[1] 袁丽梅[1] 

机构地区：[1]中国科学院生态环境研究中心环境水质学国家重点实验室,北京100085

出　　处：《环境科学》2004年第1期87-90,共4页Environmental Science

基　　金：国际合作项目;受日本国土环境株式会社资助

摘　　要：研究了染料高效吸附菌 (青霉菌BX1)的生长条件及其对活性艳蓝KN R的吸附特性 .为避免染料对其生长的毒害 ,本研究将菌体培养及其对染料的吸附分离 .结果表明 ,青霉菌BX1生长分 3个阶段 :孢子活化、线性生长和菌体自解 .菌体生长的最佳温度为 30℃ ,最优碳源依次为淀粉 >木糖 >蔗糖 >麦芽糖 >葡萄糖 >乳糖 ,最佳 pH值为 4 0 .用培养 4 8h的活菌体吸附水中的 10 0mg/L的活性艳蓝KN R ,12 0min脱色率达 93 7% ,2 0℃时菌体 (以干菌重计 )对染料的最大饱和吸附量为 15 9mg/g.The biomass of Penicillium oxalicum BX1 could adsorb many kinds of dyes. The effect of temperature, carbon source and pH on its growth and its adsorption to Reactive Blue KN-R were studied. To avoid the toxicity of the dye on BX1 biomass growth, BX1 culture and its adsorption to the dye were separated. It was found that there were three phases during BX1 growth: spore activation, linear growth and decay. The rate of BX1 growth in different carbon sources followed the order of starch > xylose > sucrose > maltrose> glucose > lactose. The optimum pH value of BX1 growth was 4.0. The decolorization rate for KN-R was 93.7% after 120min adsorption. The maximum adsorption capacity (Reactive Blue KN-R/dry biomass) was 159mg/g in 20℃.

关 键 词：青霉菌 生物吸附 脱色 废水处理 活性艳蓝KN-R 

分 类 号：X172[环境科学与工程—环境科学]