Estudo sobre a utilização da lama vermelha para a remoção de corantes em efluentes têxteis

Química Nova

Ernesto Batista Da Silva Filho²  Maria Cristina Moreira Alves²  Maurício Da Motta¹  Eveline Haiana Da Costa Oliveira¹  Walter Brander Junior¹ 

[1] ,Universidade Federal de Pernambuco Departamento de Engenharia Civil Recife PE ,Brasil

关键词: Fenton reagent;    alternative adsorption;    Bayer process;   

DOI  :  10.1590/S0100-40422008000500008

来源: SciELO

【 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】

CC BY-NC   
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