Removal of colour using banana stem adsorbent in textile wastewater

Abstract

The potential use of banana stem adsorbent has been investigated via batch adsorption experiment. A series of batch experiment was carried out to determine the effect of various adsorbent dosage ( 0.2 – 1.4 g) and various contact time ( 15 – 120 minutes). Analysis on adsorption isotherm was done using Langmuir and Freundlich model. In addition to it, the behaviour and mechanism of adsorption was analysed using kinetic model, namely Pseudo-first order and pseudo second order kinetic. The result shows that more than 90% of colour was removed at optimum dosage of 1 g of banana stem adsorbent in 100 mL synthetic dye at optimum contact time of 90 minutes. Analysis of isotherm models showed that the adsorption of colour by banana stem adsorbent was fitted to Freundlich with coefficient of determination, r1 of 0.917. Adsorption kinetics of colour showed that Pseudo-second order fit better (r2 = 0.99) than Pseudo-first order (r2 = 0.94) kinetic model. From the result, it was indicated that the adsorption of colour occurred by multilayer on a heterogeneous surface of the banana stem through the chemical reaction process. As a conclusion, the use of banana stem adsorbent has good potential for colour removal in textile wastewater treatment because of low cost of the media. Thus, it is an alternative to overcome problems related to an excessive of colour in dye wastewater treatment plant.

The Removal of Dye from Synthetic Wastewater using Hybrid Modified Sugarcane Bagasse-Banana Stem

“…The effects of various dosages and contact times were examined and optimised in this IOP Publishing doi:10.1088/1755-1315/1135/1/012010 3 study. As a result, the adsorption capacity at equilibrium, qe (mg/g) can be determined by using equation (1).…”

“…So, both toxicological and cosmetic concerns are raised by the environmental release of dyes. There are more than 100,000 commercially available dyes, and more than 7×10 5 tons of dyestuff are produced every year [1]. As a result, the environmental and subsequent health effects of dyes released in textile industry wastewater are increasingly subject to scientific scrutiny.…”

Potenciais alternativas para reutilização dos resíduos da bananicultura: uma revisão sistemática

“…Entre esses processos, a adsorção com carbono mostra-se muito eficaz na remoção de variados poluentes, no entanto o elevado custo desse método em larga escala levou a pesquisas com materiais adsorventes alternativos (ANASTOPOULOS et al, 2019;DAI et al, 2018;GEREMIAS et al, 2012). de pesquisas foi desenvolvido aproveitando os resíduos lignocelulósicos da bananicultura como biomassa adsorvente para o tratamento de poluentes (AKBAR et al, 2019;BELLO et al, 2018;DAI et al, 2018;JAIN;MALIK;YADAV, 2016;MAHMOOD-UL-HASSAN et al, 2015;NGU-YEN et al, 2013;SINGH et al, 2018).…”

Assessment of isotherm and kinetic adsorption modelling for dye removal using banana stem as green alternative adsorbent

“…In Malaysia, commercial banana production has increased by 24 -27 percent over the decades, reaching 27,453 hectares in 2009, with Johor, Pahang, and Sarawak as the leading banana-producing states [9]. The concentrations of banana stem juice at pH 7 in effluent were 80.1, 88.6, and 98.5 percent, respectively.…”