弱碱性树脂分离β-萘磺酸废水吸附平衡研究  

Study on adsorptive separation and thermodynamics of β-naphthalenesulphonic acid wastewater by weakly basic resin

作　　者：李长海[1] 石宏仁[1] 佟克 李峰[3] 

机构地区：[1]长春工业大学化学工程学院,吉林长春130012 [2]中油吉化设计院,吉林吉林132022 [3]吉林石化公司合成树脂厂,吉林吉林132021

出　　处：《吉林化工学院学报》2004年第4期4-8,共5页Journal of Jilin Institute of Chemical Technology

基　　金：吉林省科学技术发展基金资助项目(990337)

摘　　要：研究了β 萘磺酸废水中β 萘磺酸、H2SO4、H2SO3单组分吸附平衡,并以Langmuir,Freundlich模型对其进行模拟.吸附过程的热力学计算及分析结果表明,吸附过程为放热的化学吸附过程,吸附量顺序为H2SO4>NSA>H2SO3,推动力大小顺序为H2SO4>NSA>H2SO3,吸附过程熵增加.以D301R弱碱性树脂为吸附剂,可有效地实现三者的分离.Equilibrium of single component adsorption for β-naphthalenesulphonic acid,sulfuric acid and sulfurous acid from β-naphthalenesulphonic acid wastewater was studied,and the single-solute adsorption data were fitted to the Langmuir and Freundlich models.It could be found from the thermodynamic calculation and analysis results that adsorption was a chemical adsorption,both adsorption affinity of various acids and adsorption force between resin with acids were H_2SO_4>NSA>H_2SO_3,and the entroy was increasing in the course of adsorption.The separating operation could be effectively carried out for these acids based on weakly basic resin D301R.

关 键 词：β-萘磺酸废水 H2SO4 H2SO3 吸附平衡 弱碱性树脂 染料厂 离子交换树脂法 吸附剂 硫酸 亚硫酸 

分 类 号：X788[环境科学与工程—环境工程]