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

Química Nova

Motta, Maurício da¹  Brander Junior, Walter¹  Universidade Federal de Pernambuco, Recife, Brasil¹  Silva Filho, Ernesto Batista da¹  Alves, Maria Cristina Moreira¹  Oliveira, Eveline Haiana da Costa¹ 

关键词: Fenton reagent;    alternative adsorption;    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 the principal component (30 to 60%). Annually millions of tons of red mud are generated in the world. Red mud disposal is responsible for a large part of the cost of alumina production. On the other hand, textile industry wastewaters containing dyes have a great impact on the environment and on human health. In this paper the possibility of applying red mud for the removal of dyes was investigated by two processes: adsorption and degradation by the Fenton reagent.

【 授权许可】

Unknown