Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/2144
Título: Evaluating the efficiency of a vegetal coagulant in the treatment of industrial effluents
Autor: Soares, Pedro
Duarte, Felipe T.
Freitas, Olga M.
Delerue-Matos, Cristina
Figueiredo, Sónia Adriana
Boaventura, Rui
Palavras-chave: Coagulation/flocculation
Industrial effluents
Vegetal coagulant
Wastewater treatment
Data: 2012
Editora: PSP - Parlar Scientific Publications
Relatório da Série N.º: Fresenius Environmental Bulletin; Vol. 21, Issue 8b
Resumo: The present work aims at evaluating the efficiency of an organic polymer from vegetal source used as coagulant for treating different types of industrial effluents. This coagulant (Flox-QT) is obtained from the Black Acacia (Acacia mearnsii). The effluents studied were produced in petrochemical, leather, cork stoppers, metalworking, olive oil, glue, paint (printing), textile and paper industries. The parameters analyzed in the effluents before and after treatment were selected according to the type of wastewater and included pH, conductivity, apparent colour, turbidity, total suspended solids (TSS), chemical oxygen demand (COD) and some metals. The coagulant proved to be efficient for almost all effluents tested. The best results were obtained for the paper industry wastewater, with 91% removal of chemical oxygen demand and 95% of total suspended solids removal. The estimated cost of this treatment would be only 0.24 Euro per cubic meter of treated effluent, only regarding the price of the coagulant and the required dosage. The use of this coagulant is also adequate for the valorisation of the sludge obtained, which in this case could be recycled for paper production.
Peer review: yes
URI: http://hdl.handle.net/10400.22/2144
ISSN: 1018-4619
Versão do Editor: http://www.psp-parlar.de/details_artikel.asp?tabelle=FEBArtikel&artikel_id=4186&jahr=2012
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