%0 Journal Article
%T APLICA  O DO PLANEJAMENTO EXPERIMENTAL NO M¨¦TODO DE ELETRO-COAGULA  O PARA A REMO  O DE MAT¨¦RIA ORG NICA DE EFLUENTES FRIGOR¨ªFICOS
%A Carlos Eduardo Borba
%A Aline Roberta de Paula
%A Fernando Rodolfo Espinoza-Quinones
%A Aparecido Nivaldo M¨®denes
%J Engevista
%D 2012
%I Universidade Federal Fluminense
%X In this work an optimized electro-coagulation process was applied on the food-processingindustrial effluent treatment in order to reduce the high organic load. A lab-scale electro-coagulation reactorconsisting of a set of six equidistant aluminum plates within a 1 L container was built and its performancedepending on three important variables: effluent initial pH, electrolyze time and electric current was alsoevaluated on the basis of the Response Surface Methodology. A 33 factorial design on the EC experimentswas performed, optimizing the reactor operating variables according to the best response of chemical oxygendemand (COD), color and turbidity removals. Second-order models representing the response variableswere validated by ANOVA. The reactor optimal performance was achieved at 52.5 min electrolysis time, 4A electric current and 5 initial pH. Under these conditions 87% COD, 94% color, and 98% turbidity wereremoved. The EC treatment of food-processing industrial effluent proved to provide a cost-effective thanthe conventional one, indicating clearly that the method of electro-coagulation is very promising alternativefor industrial applications
%K Factorial design
%K Fridge effluent
%K Electro-coagulation
%U http://www.uff.br/engevista/seer/index.php/engevista/article/view/386/210