Degradação de espécies nitroaromáticas e remediação de efluentes da indústria de explosivos, utilizando-se processos redutivos-oxidativos fundamentados no uso de ferro metálico

Química Nova

Luiz Fernando Rocha Cavalotti²  Patricio Peralta-zamora²  Marcio Barreto Rodrigues¹  Teresa Cristina Brazil De Paiva¹ 

[1] ,Universidade Federal do Paraná Departamento de Química Curitiba PR ,Brasil

关键词: zero-valent iron;    photo-Fenton;    nitroaromatics;   

DOI  :  10.1590/S0100-40422009000600027

来源: SciELO

【 摘 要 】

In this work the potentiality of reductive-oxidative processes based on zero-valent iron was studied aiming the degradation of nitroaromatic compounds and the remediation of residues from the explosive industry. The reductive process was applied as a continuous treatment system, using steel-wool as zero-valent iron source. The process permitted an almost total degradation of nitrobenzene, nitrophenol, nitrotoluene, dinitrotoluene and trinitrotoluene, probably with generation of the respective amine-derivative. The yellow-water residue, containing soluble trinitrotoluene, was notably modified by the reductive process, a fact that permitted a substantial enhancement of its biodegradability. Furthermore, the subsequent photo-Fenton process allowed TOC removal of about 80%.

【 授权许可】

CC BY-NC   
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