摘要
为提高阴离子酒糟对MG的吸附率,在单因素实验的基础上,采用Box-Behnken响应面优化其过程,考察了温度、吸附时间、吸附剂用量、染料初始浓度和pH五个因素对吸附率的影响,确定了最佳吸附条件.研究结果表明:温度、pH、吸附剂用量和染料初始浓度的交互作用等对吸附率均有显著影响.阴离子酒糟吸附MG的最佳条件为:温度33℃、吸附时间71min、吸附剂用量6.3g/L、染料初始浓度110mg/L、pH7.5.在此条件下,阴离子酒糟对MG的吸附率可达96.71%.
In order to the single factor exp process, and five facto improve t erlmen incl ts, udi of dye and pH were results showed that t ad time of 71 dye have a of MG by he adsorption rate of anion distiller＇s grains to MG,based on the Box Behnken response surface was used to optimize the ng temperature, adsorption time, adsorbent dosage, initial con investigated to get the best adsorption conditions. The study emperature, p significant eff H,the interaction of adsorbent dosage and initial concen ect on the adsorption rate. The optimum anion distiller＇s grains were as follows：Temperature dsorbent dosage of 6.3 g/L,initial of dyes pH7.5. Under these conditions,the adsorption rate of anion distiller＇s grai conditions for the 33 ℃ ,adsorption of 110 mg/L and ns to MG reached to 96. 71%.
作者
吴妮
李成涛
张敏
卫春会
WU Ni;LI Cheng-tao;ZHANG Min;WEI Chun-hui(College of Chemistry and Chemical Engineering,Shaanxi University of Science ＆ Technology,Xi＇an 710021,China;School of Environmental Science and Engineering,Shaanxi University of Science ＆ Tech nology,Xi＇an 710021,China;College of Bioengineering,Sichuan University of Science ＆ Engineering,Zigong 643000,China)
出处
《陕西科技大学学报》
CAS
2018年第5期27-33,共7页
Journal of Shaanxi University of Science & Technology
基金
陕西省西安市科技计划项目(2017069CG/RC032(CPJG001))
四川省教育厅科研计划项目(17ZB0306)
四川理工学院四川省院士(专家)工作站科研计划项目(2017YSGZZ01)
关键词
酒糟
响应面法
孔雀石绿
distiller＇s grains
response surface method
malachite green
