Study on the use of red mud for removal of dyes from textile effluents

Quimica nova

Motta, Maurício da¹  Brander Junior, Walter¹  Silva Filho, Ernesto Batista da¹  Alves, Maria Cristina Moreira¹  Oliveira, Eveline Haiana da Costa¹ 

[1] Universidade Federal de Pernambuco, Recife, Brasil

关键词: Fenton reagent;    alternativeadsorption;    Bayer process.;   

DOI  :  10.1590/S0100-40422008000500008

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Red mud is the principal residue of the alumina(Al2O3) industry. Generated during the Bayer process,it is characterized by strong alkalinity and ion exchange. Iron oxides are theprincipal component (30 to 60%). Annually millions of tons of red mud are generatedin the world. Red mud disposal is responsible for a large part of the cost ofalumina production. On the other hand, textile industry wastewaters containingdyes have a great impact on the environment and on human health. In this paperthe possibility of applying red mud for the removal of dyes was investigatedby two processes: adsorption and degradation by the Fenton reagent.

【 授权许可】

CC BY