摘要
在静态下 ,研究了水溶液中碳黑泥吸附铬 ( )的动力学特性 ,测定了不同温度下的吸附等温线。结果表明 :在稀溶剂中吸附铬 ( )基本符合 Langmuir模型 ;温度一定 ,速率常数基本不变 ,初始浓度的一级动力学速率常数 :K2 93=0 .0 5 89min-1、k30 3=0 .1 2 7min-1,Ea=5 7k
The dynamics characteristics of Cr(Ⅵ) adsorption from aqueous solution at different experimental conditions under static conditions with carbon black slurry, which is generated as a waste material in a ammonia workshop section of the chemical plant, was studied and the adsorption isotherm lines at different temperature was determined. The results showed that the Cr(Ⅵ) adsorption in dilute solution was basically coincident with the Langmuir model, the rate constant is invariable under the fixed temperature and first order kinetics rate constant of different initial concentration is: k 293 =0.0589min -1 ?k 303 =0.127min -1 ,Ea=57kJ/mol?
出处
《水处理技术》
CAS
CSCD
北大核心
2001年第5期261-263,共3页
Technology of Water Treatment
关键词
碳黑泥
铬
吸附
动力学
废水处理
carbon black slurry
Cr(Ⅵ)
adsorption
dynamics
