scholarly journals Biosorption of Methylene Blue dye using low cost Azadirachta indica adsorbent in Batch Process

2018 ◽  
Vol 11 (No. 07) ◽  
pp. 183-192
Author(s):  
Vibha Goswami ◽  
Renu Upadhyaya ◽  
Sumanta Kumar Meher
Keyword(s):  
Methylene Blue ◽  
Azadirachta Indica ◽  
Low Cost ◽  
Batch Process ◽  
Blue Dye ◽  
Methylene Blue Dye

scholarly journals Biosorption of Methylene Blue Dye from Aqueous Solutions

2019 ◽  
Vol 9 (1S4) ◽  
pp. 1110-1115
Keyword(s):  
Methylene Blue ◽  
Plant Biomass ◽  
Low Cost ◽  
Batch Process ◽  
Isotherm Models ◽  
Blue Dye ◽  
Cow Dung ◽  
Synthetic Dyes ◽  
Methylene Blue Dye ◽  
Groundnut Shell

Synthetic dyes, like methylene blue, in effluents of chemical industries, are reported to be toxic with alleged carcinogenic and genotoxic consequences. Biosorption is considered as a low-cost alternative to the costly removal processes. Agricultural wastes and plant biomass and are contemplated to be low-cost candidates because they can be used without or with a minimum of processing. This work was intended to test the possibility and comparative study of different low-cost natural adsorbents [Coconut husk (H), Groundnut shell (G), Cow Dung (C) and moss (M)] for the sequestration of methylene blue dye from aqueous solution. A batch process was done to study the effects of different parameters such as contact time, pH, adsorbent dosage and initial dye concentration. Adsorption equilibrium data were represented using Langmuir, Freundlich and Temkin isotherm models. 75 % of dye removal was observed with moss, hence proves to be an effective, low-cost adsorbent.

Column Study for Adsorption of Methylene Blue Dye using Azadirachta indica Adsorbent

2020 ◽  
Vol 17 (4) ◽  
pp. 47-52
Author(s):  
Vibha Goswami ◽  
Renu Upadhyaya ◽  
Sumanta Kumar Meher
Keyword(s):  
Methylene Blue ◽  
Flow Rate ◽  
Azadirachta Indica ◽  
Packed Bed ◽  
Blue Dye ◽  
Feed Flow Rate ◽  
Methylene Blue Dye ◽  
Packed Bed Column ◽  
Bed Height ◽  
Percentage Removal

In this study, synthesised Azadirachta indica adsorbent was used for the removal of methylene blue dye using a packed bed column. The effect of feed flow rate, feed methylene blue dye concentration, and bed height of column on percentage removal of dye was studied. It was observed that the column bed exhausted rapidly at a higher flow rate and therefore, a breakthrough occurred faster. However, it was observed that bed exhaustion time increases on increasing the bed height from 2 to 10 inch at 10 mg/L feed dye concentration and feed flow rate of 40 ml/min. It was also found that the breakthrough curve is more dispersed and the percentage removal of dye increases on decreasing the feed methylene dye concentration from 150 to 10 mg/L. The percentage removal was found to be 96.89% at 20 ml/min of feed flow rate under 10 inch of bed height and 10 mg/L of feed dye concentration. The atomic absorption spectrophotometer and scanning electron microscope were used for estimating the effluent dye concentration from the column and morphological study, respectively.

Efficiency of almond gum as a low-cost adsorbent for methylene blue dye removal from aqueous solutions

2015 ◽  
Vol 74 ◽  
pp. 903-911 ◽  
Author(s):  
Fatma Bouaziz ◽  
Mohamed Koubaa ◽  
Fatma Kallel ◽  
Fatma Chaari ◽  
Dorra Driss ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Dye Removal ◽  
Low Cost ◽  
Blue Dye ◽  
Methylene Blue Dye

scholarly journals Adsorption of methylene blue dye by different methods of obtaining shrimp residue chitin

2021 ◽  
pp. 1-10
Author(s):  
Iliane Muller Otto ◽  
Luiza Beatriz Gamboa Araújo Morselli ◽  
Dienifer Aline Braun Bunde ◽  
Simone Pieniz ◽  
Maurízio Silveira Quadro ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Textile Industry ◽  
Technological Development ◽  
Low Cost ◽  
Effluent Treatment ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Solubility In Water ◽  
Toxic Potential ◽  
Socioeconomic Benefits

The textile industry, very important for the world economy, generates an effluent containing dyes, and which, when discarded in water bodies without proper treatment, can cause impacts to human health and the environment. One of these widely used dyes is methylene blue, whose characteristics are high solubility in water and its toxic potential, and which effects range from eye irritations, nausea, vomiting and even mental confusion. Among the potential adsorbents of this dye is chitin, which is a biopolymer extracted from the shrimp exoskeleton. Aiming at the development of a low-cost adsorbent material with potential use in the textile effluent treatment industry, the ability to remove methylene blue dye by shrimp residue chitin, obtained by eleven different methodologies, was verified. The three most efficient treatments reached approximately 75% of dye removal, proving the high adsorption power of shrimp residue. In addition to providing technological development of materials, the research brings socioeconomic benefits to the fishermen’s colony with the use of shrimp residue for the adsorption of other waste from the textile industry, contributing to the sustainability of both activities and reducing the environmental impact.

Evaluation of the Adsorption Process Using Low Cost Agroindustry Residue for the Removal of Methylene Blue Dye

2020 ◽  
Vol 12 (2) ◽  
Author(s):  
Fabiano Mendonça De Oliveira ◽  
Priscila Afonso Rodrigues de Sousa ◽  
Edmar Isaias De Melo ◽  
Luciana Melo Coelho
Keyword(s):  
Methylene Blue ◽  
Adsorption Process ◽  
Low Cost ◽  
Blue Dye ◽  
Methylene Blue Dye
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