Utilização de diferentes tipos de policloretos de alumínio para purificação de hidrolisado de bagaço de cana através da técnica de coagulação e floculação Use of different kinds of aluminum polychloride in the sugarcane bagasse hydrolyzate purification through coagulation and flocculation technics

• Main Authors: Leonardo de Lima Noronha, Christiane Reis Fonseca, Cássia Cavalcanti da Silva, Messias Borges Silva, Luís Fernando Figueiredo Faria
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2010-01-01
• Series: Química Nova
• Subjects: hydrolyzate; coagulation; aluminum polychloride
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000800015
• ISSN: 0100-4042; 1678-7064

<abstract language="eng">In order to investigate the action of the flocculating agents Panfloc and Panclar a full factorial design 2³ and a Central Composite design 2² were carried out. The control variables were the flocculant concentration, pH and temperature. The response variables were phenolic compounds reduction and spectral area reduction. The best conditions of treatment was hydrolyzate at pH 9 for both coagulants, but the use of Panfloc was more effective in the phenolic compounds reduction (73.9%) and spectral area reduction (65.8%).