Ouricuri (Syagrus coronata) fiber: a novel biosorbent to remove methylene blue from aqueous solutions

• Published in: Water science and technology Vol. 75; no. 1-2; pp. 106 - 114
• Main Authors: Meili, Lucas, da Silva, Társila Santos, Henrique, Daniely Carlos, Soletti, João Inácio, de Carvalho, Sandra Helena Vieira, Fonseca, Eduardo Jorge da Silva, de Almeida, André Ricardo Felkl, Dotto, Guilherme Luiz
• Format: Journal Article
• Language: English
• Published: England IWA Publishing 01-01-2017
• Subjects: Adsorbents; Adsorption; Agitation; Aqueous solutions; Arecaceae - chemistry; Capacity; Chemical engineering; Color removal; Colour; Cosmetics; Desalination; Dosage; Dyes; Effluents; Experimental design; Fourier transforms; Hydrogen-Ion Concentration; Kinetics; Membrane separation; Methylene blue; Methylene Blue - chemistry; Moisture content; Polymers; Removal; Scanning electron microscopy; Seeds; Solutions; Studies; Syagrus coronata; Water - chemistry; Water Pollutants, Chemical - chemistry; Water Purification - methods; Brazil
• ISSN: 0273-1223; 1996-9732
• DOI: 10.2166/wst.2016.495

In this work, the potential of ouricuri (Syagrus coronata) fiber as a novel biosorbent to remove methylene blue (MB) from aqueous solutions was investigated. The fiber was prepared and characterized according to the fundamental features for adsorption. A 2
experimental design was used to evaluate the effects of adsorbent dosage (M), fiber diameter (D) and agitation (A) on the adsorption capacity. In the more adequate conditions, kinetic and equilibrium studies were performed. The experimental design results showed that M = 10 g L
), D = 0.595 mm and A = 200 rpm were the more adequate conditions for MB adsorption. Based on the kinetic study, it was found that the adsorption process was fast, being the equilibrium was attained at about 5 min, with 90% of color removal. The isotherm was properly represented by the Sips model, and the maximum adsorption capacity was 31.7 mg g
. In brief, it was demonstrated that ouricuri fiber is an alternative biosorbent to remove MB from aqueous media, taking into account the process efficiency and economic viewpoint.