Agriculture waste from banana peel as low cost adsorbent in treating methylene blue from batik textile waste water effluents (original) (raw)

Adsorptive removal of methylene blue using the natural adsorbent-banana leaves

Desalination and Water Treatment, 2014

In this work, the banana leaf, an agricultural waste, widely used for wrapping of food was utilized as a low-cost adsorbent for removing methylene blue (MB) dye from the aqueous solution. The effects of initial concentration, contact time, and solution pH on the adsorption performance were investigated in a batch mode study at 30°C. The adsorptive uptake of MB increased with increasing the initial MB concentration and solution pH. Equilibrium data were simulated using the Langmuir and Freundlich isotherms, pseudo-first-order, pseudo second-order and intraparticle diffusion models. The data were well fitted to the Langmuir isotherm model, showing a maximum monolayer adsorption capacity of 109.89 mg/g. Adsorption kinetics were best described by the pseudo-second-order and intraparticle diffusion models. The results illustrated the potential use of waste banana leaves for the removal of colors and dyes from the textile wastewater.

Removal of colour using banana stem adsorbent in textile wastewater

Journal of Physics: Conference Series, 2019

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 ...

Elimination of Methylene Blue Dye with Natural Adsorbent « Banana Peels Powder »

Global Journal of Science Frontier Research, 2014

The investigation focused on the adsorption of the blue methylene on banana peels powder. The studies led to determine contacting time (40 minutes for 90% elimination of substrate methylene blue). However, this contacting time can vary with dye concentration. The optimization of parameter such as the temperature, agitation and initial concentration of dye has showed a sensitive improvement of the capacity and rate adsorption. Moreover, the adsorption of this compound is well described by both Langmuir and Freundlich isotherm models.

The Effectiveness of natural, Low Cost Adsorbent for Removal of Methylene Blue

The low cost absorbent neem leaf powder has been investigated for the effectiveness in decolorization of wastewater containing a dye name methylene blue. Effect of various parameters such as agitation time, pH, temperature and adsorbent dosage has been carried out in this study. Isotherm studies were conducted on a laboratory scale and the data evaluated for compliance with Langmuir and Freundlich isotherm models. Both models were well fit to equilibrium data. Batch pH study indicated that adsorbent was effective in the removal of acid dye and the disperse dye at lower pH values. For the basic dye maximum removals was exhibited at higher pH values.