Abstract: 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 thermodynamic calculation and analysis results that adsorption was a chemical adsorption, adsorption affinity of various acids was H₂SO₄>NSA>H₂SO₃,and adsorption force between resin and acids was H₂SO₄>NSA>H₂SO₃ and entropy was increasing in the course of adsorption.The separation operation could be effectively carried out for these acids based on weakly basic resin D301R.

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.