Tratamento do efluente do biodiesel utilizando a eletrocoagulação/flotação: investigação dos parâmetros operacionais

• Main Authors: Janaina Moreira de Meneses, Robelsa de Fátima Vasconcelos, Thalys de Freitas Fernandes, Gilmar Trindade de Araújo
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2012-01-01
• Series: Química Nova
• Subjects: electrocoagulation; biodiesel wastewater; operational parameters
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000200002&lng=en&tlng=en

Electrocoagulation/flotation process was applied to treat biodiesel wastewater using aluminium electrodes. Firstly, a literature survey was conducted to choose the process variables and then, operational parameters including initial pH, electrode distance and reaction time were tested. Experimental results showed the best parameter that can be used in a factorial design for further studies. The results indicate that electrocoagulation/flotation is very efficient to reduce oil and grease, the effluent was very clear after treatment and small amount of sludge was produced.