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 AJPS  Vol.7 No.13 , September 2016
Evaluation of the Coagulating Potential of the Crude Extract from the Barbatimão Bark for the Treatment of Dairy Effluents
Abstract: The coagulating potential of the crude extract from the barbatimao bark for the treatment of dairy effluent was assessed and compared with industrial coagulants such as aluminum sulfate (inorganic coagulant), the crude extract of black wattle bark (used in the manufacture of natural organic coagulants), and gallic acid (the main constituent of condensed tannins). The aqueous extract of barbatimao was obtained by refluxing for 12 h, and the black wattle was provided by a producer of natural coagulants. The determinations of total phenolic compounds and tannins in the extracts were performed by the Folin-Ciocalteu method and precipitation with casein, respectively. The treatment of the effluent with coagulant was performed by the Jar-Test. After testing, the effluent was evaluated for turbidity, total solids, and biochemical oxygen demand (BOD). A higher content of phenolic compounds (19.81% mg of gallic acid/g extract) was observed in the barbatimao extract than in the black wattle extract (14.24% mg of gallic acid/g extract). However, the extracts contained the same amount of tannins, 13.95% for the barbatimao extract and 12.89% for the black wattle extract. A 63%, reduction in BOD was observed for the effluent treated with barbatimao extract, 35% for the black wattle extract, 58% for gallic acid and 60.59% for the treatment with aluminum sulfate. Treatment with gallic acid caused a 98% reduction in the turbidity of the effluent; with aluminum sulfate, a 97% reduction was obtained; with barbatimao extract, 96%, and with black wattle extract, 93%. The barbatimao extract was shown to be a potential coagulant for dairy effluents.
Cite this paper: Fernandes Ferreira, V. , de Souza, J. , das Graças Cardoso, M. , de Lima Guimarães, L. , Brandão, R. , Souza, R. , Soares, L. , e Nogueira, J. , D’Carlos Cravo, F. and Nelson, D. (2016) Evaluation of the Coagulating Potential of the Crude Extract from the Barbatimão Bark for the Treatment of Dairy Effluents. American Journal of Plant Sciences, 7, 1685-1692. doi: 10.4236/ajps.2016.713159.
References

[1]   Santos, A.M., Silva, S.R., Carvalho, S.H.V. and Soletti, J.I. (2009) Tratamento de Efluentes Lácteos através de Coagulacao Quimica e Sedimentacao. VIII Congresso Brasileiro de Engenharia Quimica em Iniciacao Cientifica. Uberlandia, Minas Gerais, Brasil, 27-30.
http://www.cobeqic2009.feq.ufu.br/uploads/media/80813851.pdf

[2]   Sperling, M.V. (2005) Introducao à Qualidade das Aguas e ao Tratamento de Esgoto: Principios do tratamento biológico de águas residuárias. 3rd Edition, Belo Horizonte.

[3]   Ministério do Meio Ambiente (2011) Resolucao CONAMA No. 430.
http://www.mma.gov.br/port/conama/res/res11/propresol_lanceflue_30e31mar11.pdf

[4]   Piantá, C.A.V. (2008) Emprego de Coagulantes Organicos Naturais Como Alternativa ao Uso do Sulfato de Aluminio no Tratamento de água. Trabalho de diplomacao. Universidade Federal do Rio Grande do Sul, Porto Alegre.

[5]   Dias, A.C.Vi., Dezotti, M. and Massarani, G. (2005) Estudo Comparativo entre os Efeitos do Tanino e de um Coagulante Convencional sobre a Filtracao Rápida usada no Tratamento de água para Abastecimento. 23 Congresso Brasileiro de Engenharia Sanitária e Ambiental. Campo Grande, 18-23 de Setembro de 2005.
http://www.bvsde.paho.org/bvsacd/abes23/I-066.pdf

[6]   Simoes, C.M.O., et al. (2007) Farmacognosia: Da planta ao medicamento. UFRGS, Porto Alegre, 1102 p.

[7]   Roversi, T., Mattei, V., Siveira, J.P. and Falck, G.L. (2002) Superacao da Dormencia em Sementes de Acácia negra (Acácia mearnsii Willd). Revista Brasileira de Agrociencia, 8, 161-163.

[8]   Meira, M.R., Cabacinha, C.D., Figueiredo, L.S. and Martins, E.R. (2013) Barbatimao: Ecologia, Producao de Taninos e Potencial Sócio Economico na Regiao Norte Mineira. Universidade Federal de Minas Gerais—UFMG.

[9]   Borges Filho, H.C. and Felfili, J.M. (2003) Avaliacao dos niveis de extrativismo da casca de barbatimao Stryphnodendron adstringens (Mart.)Coville no Distrito Federal, Brasil. Revista árvore, Vicosa, 27, 735-745.

[10]   Lorenzi, H. (2000) árvores brasileiras: Manual de identificacao e cultivo de plantas arbóreas nativas do Brasil. Instituto Plantarum, Nova Odessa, 370 p.

[11]   Monteiro, J.M., Neto, E.M.F.L., Amorim, E.L.C., Strattmann, R.R., Araújo, E.L. and Albuquerque, U.P. (2005) Teor de Taninos em Tres Espécies Medicinais Arbóreas Simpátricas da Caatinga. Sociedade de investigacoes florestais, R. árvore vicosa-MG, 29, 999-1005.

[12]   Perry, K.S.P. (2004) Queijos: Aspectos quimicos, bioquimicos e microbiológicos. Quimica Nova, 27.

[13]   Ferreira, D.F. (2011) Sisvar: A computerstatistic alanalysis system. Ciencia e Agrotecnologia, Lavras, 35, 1039-1042.

[14]   Santos, S.C. and Mello, J.C.P. (2004) Taninos. In: Simoes, C.M.O., Schenkel, E.P., et al., Eds., Farmacognosia: Da Planta ao Medicamento, 5th Edition, UFSC, Porto Alegre, 631-633.

[15]   Pansera, M.R., Atti-Santos, A.C., Serafini, L.A. and Cassel, E. (2001) Supercritical Extraction of Tannin with Co-Solvents. IV Encontro Brasileiro de Fluidos Supercriticos em Salvador-Bahia, 42.

[16]   Skoog, D.A., West, D.M., Holler, F.J. and Crouch, S.R. (2011) Fundamentos de Quimica Analitica. Cengage Learning, Sao Paulo.

 
 
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