期刊论文

Xia, L.-S.

中文

化学工程

1005-9954

2009

37

3

5-8,12

10.3969/j.issn.1005-9954.2009.03.002

国家自然科学基金资助项目（10675059）；

本校为其他机构

采用啤酒酵母菌-活性污泥协同曝气处理含铀废水,研究了其吸附过程的吸附性能及吸附动力学.实验结果表明,啤酒酵母菌-活性污泥协同对UO 2+2具有良好的富集作用,在污泥质量浓度为8 g/L,啤酒酵母菌加入质量浓度为10 g/L(干质量),粒度为100-120 目,吸附温度为25 ℃,曝气量为80-100 L/h的条件下,对初始质量浓度为100 mg/L,溶液pH值为5的铀溶液进行吸附1 h,其去除率达到96.3%.啤酒酵母菌-活性污泥协同曝气处理不同初始质量浓度铀的吸附等温线符合Langmuir和Freundlich等温吸附方程,相关系数达到0.98以上;吸附动力学过程是一个动态过程,可用准二级吸附速率方程来描述,相关系数达到0.99以上.

Saccharomyces cerevisiae-activated sludge was used in synergistic aeration treatment of uranium-contained wastewater. The characteristics and kinetics of this adsorption were investigated. The results indicate that saccharomyces cerevisiae （SC）-activated sludge （AS） can accumulate UO^2＋ 2 effectively from aqueous solution. The removal rate of UO^2＋ 2 can reach 96.3% after U solution with initial mass concentration 100 mg/L and pH=5 is adsorbed for 1 h under the conditions of AS mass concentration 8g/L, SC mass concentration 10g/L（dry mas...