EVALUATING THE EFFICIENCY OF A VEGETAL COAGULANT IN THE TREATMENT OF INDUSTRIAL EFFLUENTS

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Soares, PR (Autor) Outra; Duarte, FT (Autor) Outra; Freitas, OM (Autor) Outra; Delerue Matos, C (Autor) Outra; Figueiredo, SA (Autor) Outra; Rui Boaventura (Autor) FEUP

Revista

Título: Fresenius Environmental Bulletin

Vol. 21 Nº 8

Páginas: 2413-2418

ISSN: 1018-4619

Editora: Technische Universitat Munchen

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia do ambiente

CORDIS: Ciências Tecnológicas > Tecnologia > Tecnologia ambiental

Outras Informações

ID Authenticus: P-002-F62

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6