Corrigendum to " A potentially low-cost adsorbent for methylene blue removal from synthetic wastewater " published in vol. 213 (2021) 431-440 (doi:10.5004/dwt.2021.26732)

2021 ◽  
Vol 214 ◽  
pp. 454-454
Author(s):  
Hatem A. Al-Aoh ◽  
Meshari M.H. Aljohani ◽  
A.A.A. Darwish ◽  
M. Ayaz Ahmad ◽  
Suhair A. Bani-Atta ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Low Cost ◽  
Synthetic Wastewater ◽  
Methylene Blue Removal

A potentially low-cost adsorbent for Methylene Blue removal from synthetic wastewater

2021 ◽  
Vol 213 ◽  
pp. 431-440
Author(s):  
Hatem A. Al-Aoh ◽  
Meshari M.H. Aljohani ◽  
A.A.A. Darwish ◽  
M. Ayaz Ahmad ◽  
Suhair A. Bani-Atta ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Low Cost ◽  
Synthetic Wastewater ◽  
Methylene Blue Removal

scholarly journals Removal of Methylene Blue Dye from Synthetic Wastewater using Kenaf Core and Activated Carbon

2018 ◽  
Vol 7 (4.19) ◽  
pp. 909 ◽  
Author(s):  
Saleem Ethaib ◽  
Iqbal K. Erabee ◽  
Ali A. Abdulsahib
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Low Cost ◽  
Correlation Coefficients ◽  
Freundlich Isotherm ◽  
Morphological Properties ◽  
Synthetic Wastewater ◽  
Blue Dye ◽  
Freundlich Isotherms ◽  
Kenaf Core

The removal of textile-based cationic methylene blue (MB) dye from synthetic wastewater was investigated in batch model using low cost agro-based adsorbents named Kenaf core, and the activated carbon. A comparative analysis between these adsorbents was defined via pH, adsorbent dose and contact time on adsorption process, and morphological properties. In addition, isotherms adsorption studies were estimated for determination of the equilibrium adsorption capacity. The experimental observation showed that the optimum pH values for Kenaf core and the activated carbon were 6 and 4 respectively. Meanwhile the optimum adsorbent dosage values for Kenaf and the activated carbon were 1.5g for both. The results showed that a high adsorption efficiency for Kenaf core which was about 84% and 92 % for activated carbon. The correlation coefficients (𝑅2) for kenaf core were equal to 0.8789 and 89 for Langmuir and Freundlich isotherm, respectively. Meanwhile, the correlation coefficients (𝑅2) for activated carbon were equal were 0.8974 and 0.7643 for Langmuir and Freundlich isotherms, respectively. The results illustrated that the Kenaf core has a porous and an irregular surface area which make it a suitable adsorbent for dyes in the wastewater. 

High efficiency of methylene blue removal using a novel low-cost acid treated forest wastes, Cupressus semperirens cones: Experimental results and modeling

2018 ◽  
Vol 37 (4) ◽  
pp. 504-513 ◽  
Author(s):  
Meryem Bounaas ◽  
Abdallah Bouguettoucha ◽  
Derradji Chebli ◽  
Abdelbaki Reffas ◽  
Intisar Harizi ◽  
...  
Keyword(s):  
Methylene Blue ◽  
High Efficiency ◽  
Low Cost ◽  
Experimental Results ◽  
Methylene Blue Removal

scholarly journals Equilibrium kinetic and isotherm studies of dye colour adsorption on the banana peel

2021 ◽  
Vol 920 (1) ◽  
pp. 012029
Author(s):  
A A A Bakar ◽  
W N R W Mazlan ◽  
I H Izaham ◽  
N S Azizan ◽  
K A M Ali ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Low Cost ◽  
Industrial Effluent ◽  
Model Fit ◽  
Synthetic Wastewater ◽  
Banana Peel ◽  
Order Kinetic ◽  
Food Industries ◽  
Pseudo Second Order ◽  
Blue Solution

Abstract Textile, paper, rubber, plastics, leather, cosmetics, pharmaceuticals, and food industries extensively employ dyes. This study aims to determine the best equilibrium kinetic and isotherm model of dye colour adsorption using waste adsorbent. Methylene blue (MB) is a dye colour contaminant that can be removed from wastewater via adsorption due to its ease of usage and cost-effectiveness. This study employed banana peels (BPs), a low-cost and waste adsorbent, to remove MB from synthetic wastewater. A series of batch equilibrium adsorption studies investigated the effect of different dosages of 0.05 to 0.4 grams, contact time of 15 to 150 minutes, and agitation speed of 150 rpm. BPs dosage is added from 0.05 g to 0.4 g in 100 ml of Methylene Blue solution. The concentration of MB in the samples was determined using a HACH DR2800 Spectrometer. According to the kinetic study analysis, the adsorption of MB followed a pseudo-second order kinetic with an R2 of 0.9934. Furthermore, the Freundlich model fit better than others based on the equilibrium isotherm investigation, with an R2 of 0.7688. As a result, BPs can be used as an alternative waste adsorbent media for extracting dye colours from industrial effluent.

scholarly journals A LOW-COST ADSORBENT COCONUT WASTE ASH ACTIVATED NaCl FOR METHYLENE BLUE REMOVAL

2020 ◽  
Vol 12 (2) ◽  
pp. 43-48
Author(s):  
Nurliza Pujiana ◽  
Eny Yulianti ◽  
Arief Rahmatulloh ◽  
Susi Nurul Khalifah ◽  
Vina Nurul Istighfarini
Keyword(s):  
Methylene Blue ◽  
Pore Structure ◽  
Adsorption Capacity ◽  
Low Cost ◽  
Optimum Concentration ◽  
Adsorption Behavior ◽  
Xrf Analysis ◽  
Nacl Concentration ◽  
Methylene Blue Removal

Removal methylene blue from water using coconut waste ash activated by NaCl is studied in this paper. The characteristic of morphology and pore structure of coconut waste ash is analyzed using SEM, show that pores were formed after activation. XRF analysis revealed that the coconut waste ash before activation contains 20,19 % of Si. The effect of NaCl concentration on the adsorption behavior is investigated. The results show that the optimum concentration of NaCl to activating the coconut waste ash is 300 ppm. The adsorption capacity of coconut waste ash without activation, NaCl-activated coconut waste ash on 200 ppm, 300 ppm, and 400 ppm is 1.103 mg/g, 1.152 mg/g, 1.2102 mg/g, and 1.1109 mg/g respectively.

scholarly journals Comparative Adsorption of Methylene Blue on Different Low Cost Adsorbents by Continuous Column Process

2018 ◽  
Vol 77 ◽  
pp. 26-34
Author(s):  
Mohammad Abul Hossain ◽  
Md. Mahbbat Ali ◽  
Tajmeri Selima Akhter Islam
Keyword(s):  
Methylene Blue ◽  
Adsorption Capacity ◽  
Low Cost ◽  
Spectroscopic Method ◽  
Black Tea ◽  
Breakthrough Curves ◽  
Synthetic Wastewater ◽  
Batch Adsorption ◽  
Tea Leaves ◽  
Column Adsorption

Dyes are commonly found in the effluents of many industries. The effectiveness of adsorption for the removal of dye from wastewaters has been made it an ideal alternative to other expensive treatment methods. Continuous column adsorption is more affective than batch adsorption. A comparative column adsorption study was performed using three different low cost adsorbents for the removal of methylene blue from synthetic wastewater. Sand was collected from Cox’s Bazar, and sugarcane bagasse and used black tea leaves were locally prepared in laboratory. Three columns were designed for different adsorbents maintaining all conditions were to be approximately similar. UV-vis spectroscopic method was used for analysis of methylene blue in solution. Column adsorption experiments were performed to investigate the comparison of breakthrough curves and exhaust capacity of three different adsorbents. Column study shows that the adsorption capacity of used black tea leaves is highest. The adsorption capacity of bagasse is lower than tea leaves but higher than sand.

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