Estudo e projeto de reatores fotoquimicos para tratamento de efluentes liquidos / Study and design of photochemical reactors to treat liquid effluents

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

Wasterwater treatment has become a fundamental stage of industrial processes. Most wastewater treatment are currently based on biological processes. However, some types of wastewater cannot be treated by such processes due to the fact of possessing toxic. Therefore, the Advanced Oxidation Process (AOP) can be used with success in such wastewater remediation. The aim of this study was to study the degradation of phenol using hydrogen peroxide and ultraviolet in annular section reactor, observing the influence of certain variables in the treatment process and the development of a photochemical reactor design methodology to determine the best operation conditions. The factors studied through factorial analysis were hydrogen peroxide concentration, flow regime, light bulb power and reactor diameter. The phenol degradation process using ?H IND. 2??O IND. 2? behaves similar to autocatalytic reactions and this system can be optimized through a recycle flow. Two photochemical reactors were used with different annular section operated both in a continuous flow and batch recycle system. The degradation was monitored by Total Organic Carbon (TOC). Showed to be more significant light bulb power, hydrogen peroxide concentration and reactor diameter, and that there is an interaction effect with these last two factors... Note: The complete abstract is available with the full electronic digital thesis or dissertations

ASSUNTO(S)

reatores quimicos agua oxigenada phenols radiação ultravioleta chemical reactors fenois sewage aguas residuais photochemical oxidants ultraviolet radiation hydrogen peroxide oxidantes fotoquimicos

ACESSO AO ARTIGO

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