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℃.
出处
《环境科学》
EI
CAS
CSCD
北大核心
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
关键词
青霉菌
生物吸附
脱色
废水处理
活性艳蓝KN-R
Penicillium oxalicum
biosorption
decolorization
wastewater treatment
reactive blue KN-R
