摘要
采用黄酒糟对模拟染料废水中的活性艳红和亚甲基蓝进行吸附。在染料初始质量浓度100 mg/L、黄酒糟加入量10 g/L、吸附时间2 h的条件下,当活性艳红废水初始pH为2.0～10.0时,黄酒糟对活性艳红的吸附率为94.0%～95.7%;当亚甲基蓝废水初始pH为11.0～12.0时,黄酒糟对亚甲基蓝的吸附率约为90.6%。动力学研究表明,黄酒糟对染料的吸附过程符合拟二级动力学方程。使用Langmuir和Redlich-Peterson吸附方程可较好地拟合黄酒糟对两种染料的吸附,活性艳红的饱和吸附量为49.1 mg/g,亚甲基蓝的饱和吸附量为7.85 mg/g。
Reactive brilliant red and methylene blue in the simulated dye wastewater were adsorbed using rice wine lees. Under the conditions of initial dye mass concentration 100 rag/L, adsorbent dosage 10 g/L and adsorption time 2 h, the adsorption rate of reactive brilliant red is 94.0% -95.7% when the initial pH of the reactive brilliant red wastewater is 2.0 - 10.0, and the adsorption rate of methylene blue is about 90.6% when the initial pH of the methylene blue wastewater is 11.0 - 12.0. The kinetics study results indicate that the adsorptions of dyes on rice wine lees accord with the pseudosecond-order kinetics equation. Langmuir model and Redlich-Peterson isotherm model can fitly describe the two adsorptions. The saturated adsorption capacity to reactive brilliant red is 49.1 mg/g and that to methylene blue is 7.85 mg/g.
出处
《化工环保》
CAS
CSCD
北大核心
2011年第5期464-468,共5页
Environmental Protection of Chemical Industry
基金
广东省科技计划项目(2008B030302003)
关键词
生物吸附剂
黄酒糟
活性艳红
亚甲基蓝
吸附
废水处理
biological adsorbent
rice wine lees
reactive brilliant red
methylene blue
adsorption
wastewater treatment
