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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-1472
Vol. 13, No. 4, 2016, pp. 1131-1136
Bioline Code: st16106
Full paper language: English
Document type: Research Article
Document available free of charge

International Journal of Environment Science and Technology, Vol. 13, No. 4, 2016, pp. 1131-1136

 en Use of glycosides extracted from the fique ( Furcraea check for this species in other resources sp.) in wastewater treatment for textile industry
Lozano-Rivas, W. A.; Whiting, K. E.; Gómez-Lahoz, C. & Rodríguez-Maroto, J. M.

Abstract

The laboratory tests for the use of sapogenic amphiphilic glycosides as a coagulation–flocculation aid are presented in this paper. These amphiphilic glycosides were obtained, through a natural fermentation process, of the juice, of fique (Furcraea sp.) leaves. Decantation allows for the separation of a supernatant denominated ‘‘supernatant fique juice’’ and a decanted fraction denominated ‘‘decanted fique juice.’’ The latter contains most of the sapogenic amphiphilic glycosides and was mixed with the chemical coagulant ferric chloride hexahydrate, at varying doses. Ferric chloride hexahydrate was also used as a control to ascertain the removal efficiency of persistent contaminants from samples of a textile industry effluent. The parameters of interest were typical indicators of water quality such as color, turbidity, chemical oxygen demand, pH and conductivity. The results indicate that the decanted fique juice, when used as a coagulation–flocculation aid, and upon comparison with the chemical coagulant alone, causes an additional color and turbidity reduction of 31 and 17 %, respectively. No significant differences were noted in the chemical oxygen demand values (α = 0.05; P<0.001). Thus, there is a scope for further research about the commercial feasibility of DFJ as an industrial water treatment agent, which reduces the toxicity of raw fique juice and its detrimental environmental effects.

Keywords
Coagulation; Flocculation aid; Textile industry; Agricultural waste valorization; Treatability tests

 
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