Caracterização e Otimização do Tratamento de Efluente Têxtil por Coagulação-Floculação Utilizando Coagulante Natural Tanino

Este estudo teve por objetivo analisar as concentrações de taninos existentes na casca das árvores da Mimosa caealpiniifolia Benth., e seu potencial para tratamentos de efluentes. As cascas foram retiradas de cinco árvores de uma área experimental localizada na Universidade Federal do Rio Grande do Norte, Campus Macaíba. Estas foram secas e moídas para redução de sua granulometria. Em seguida foram realizados a extração dos taninos e determinação do teor de sólidos totais (TST), teor de taninos condensados (TTC) e índice de Stiasny (I). Para caracterização do efluente foi analisado o índice de turbidez/NTU, pH inicial e cor aparente. O valor médio encontrado para TST, I e TTC foram, respectivamente, 11,30, 71,43 e 6,56%. O índice de turbidez/NTU e pH, encontrados foram 1,77 e 5, respectivamente. Os taninos sem modificações químicas têm pouca eficiência na remoção de turbidez, no entanto, foi comprovado que o tanino possui aptidão a coagular.Palavras-chave: coagulante; floculação; substâncias tânicas; Caatinga. QUANTIFICATION OF TANNINS PRESENT IN THE BARK OF Mimosa caealpiniifolia Benth. AND ITS USE IN EFFLUENT TREATMENT ABSTRACT: This study aimed to analyze the concentrations of tannins in the bark of Mimosa caealpiniifolia Benth. trees, and their potential for effluent treatment. The bark was removed from five trees in an experimental area located at the Federal University of Rio Grande do Norte, Campus Macaíba. They were dried and ground to reduce their granulometry. Next, tannin extraction and determination of total solids content (TST), condensed tannin content (TTC) and Stiasny index (I) were performed. To characterize the effluent, the turbidity index/NTU, initial pH and apparent color were analyzed. The mean value found for TST, I and TTC were, respectively, 11.30, 71.43 and 6.56%. The turbidity/NTU and pH index found were 1.77 and 5, respectively. The tannin without chemical modifications has little efficiency in removing turbidity, however, it has been proven that the tannin has ability to coagulate.Keywords: coagulant; flocculation; tannic substances; Caatinga.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Caracterização e Otimização do Tratamento de Efluente Têxtil por Coagulação-Floculação Utilizando Coagulante Natural Tanino

Cited by 2 publications

References 1 publication

A critical analysis of the alternative treatments applied to effluents from Brazilian textile industries

A critical analysis of the alternative treatments applied to effluents from Brazilian textile industries

QUANTIFICAÇÃO DE TANINOS PRESENTES NA CASCA DA Mimosa caealpiniifolia Benth. E SUA UTILIZAÇÃO NO TRATAMENTO DE EFLUENTES

Contact Info

Product

Resources

About