改性树叶对染料废水的吸附脱色研究  

Modification of the Leaves on the Adsorption Decolorization of Dye Wastewater

作　　者：张存兰[1] 

机构地区：[1]德州学院化学化工学院,山东德州253023

出　　处：《德州学院学报》2017年第2期26-29,共4页Journal of Dezhou University

基　　金：德州市科技发展计划项目(2011B02)

摘　　要：采用的处理方法为吸附法,树叶作为吸附剂,用盐酸加以改性使其活化,在一定条件下处理染料废水,用紫外——可见分光光度计测定废水处理前后的吸光度,根据吸光度的大小计算脱色率,研究不同实验条件下的脱色率,找出最佳的实验条件.实验证明:经过化学改性的树叶对染料废水的脱色效果优于未改性的树叶,改性树叶对低浓度的染料废水有较好的脱色效果,最佳的处理浓度为30mg/L,投加量为1.0g,最佳的反应pH为7,最佳的搅拌时间为120min.This research used processing method is adsorption method, leaves as adsorption agent, treat the dye wastewater under certain conditions, waste water treatment was determined by uv -- visible spec- trophotometer absorbance of before and after, according to the size of the absorbance decoloring rate calcu- lation, to get the best experimental conditions through different decolorization under different experimen- tal conditions. Experiments prove that： chemical modified leaves,decolorization of dye wastewater is bet- ter than that of unmodified leaves. Modified the leaves has a good decolorizing effect on low concentration dye wastewater, the best concentration is 30 mg/L, the optimum dosage is 1.0 g, the best reaction pH is 7.0, the optimum mixing time is 120 min.

关 键 词：染料废水 吸附法 树叶 改性 

分 类 号：TQ116.2[化学工程—无机化工]