Comparison of the efficiency of ozonation and catalytic ozonation (Mn II and Cu II) in phenol degradation

Química Nova

Universidade de Mogi das Cruzes, Mogi das Cruzes¹  Assalin, Márcia Regina¹  Silva, Priscila Lima da¹  Durán, Nelson¹  Universidade Estadual de Campinas, Campinas¹ 

关键词: catalytic ozonation;    metallic ions;    phenol.;   

DOI  :  10.1590/S0100-40422006000100006

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

This paper discusses the results obtained with homogeneous catalytic ozonation [Mn (II) and Cu (II)] in phenol degradation. The reduction of total phenols and total organic carbon (TOC) and the ozone consumption were evaluated. The efficiency in phenol degradation (total phenol removal) at pH 3, with the catalytic process (Mn (II)), increased from 37% to 55% while the TOC removal increased from 4 to 63% in a seven-minute treatment. The ozonation process efficiency at pH 10 was 43% and 39% for phenol and TOC removal, respectively. The presence of both metallic ions (Mn2+ and Cu+2) in the ozonation process resulted in a positive effect.

【 授权许可】

Unknown