Removal of methylene blue dye using immobilized bacillus subtilis in batch &amp; column reactor

Upendar, Ganta; Dutta, Susmita; Chakraborty, J.; Bhattacharyya, Pinaki

doi:10.1016/j.matpr.2016.10.029

Cited by 17 publications

(14 citation statements)

References 6 publications

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“…For this purpose, methylene blue was chosen as analyte. The molecule is an industrial dye and is a common pollutant ,. This dye can irritate the skin or eyes, inhalation can lead to diseases like methemoglobinemia or cyanosis and ingestion can cause varied gastrointestinal issues …”

Section: Resultsmentioning

confidence: 99%

Highly Interconnected Macroporous and Transparent Indium Tin Oxide Electrode

et al. 2017

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A macroporous indium tin oxide (ITO) electrode has been obtained by electrospinning nanofibers from polyvinylpyrrolidone and ITO precursors on a fused silica substrate covered by polystyrene, followed by a heat treatment that induced a drastic modification in the material texture. The resulting electrode structure is consisting of highly interconnected nanofilaments of sizes between 70 and 170 nm. The electrode is robust, fixed to the substrate, transparent in the visible light region, and possesses excellent electrochemical properties in comparison to a planar ITO electrode, that is, improved reversibility with ferrocenedimethanol and greatly enhanced oxidation for ascorbic acid. SEM and XRD measurements confirm ITO formation. This porous ITO electrode can be modified electrochemically with mesostructured methylated silica and applied to a combined electrochemical and spectral detection of industrial dyes (methylene blue, Meldola's blue, and methylene green) from water. For methylene blue analysis, a linear range of detection between 20 nM and 2 μM and a limit of detection of 17 nM are observed. Finally, the spectroelectrochemical analysis of a solution with mixed dyes has been performed.

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Section: Resultsmentioning

confidence: 99%

Highly Interconnected Macroporous and Transparent Indium Tin Oxide Electrode

et al. 2017

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“…Bacillus subtilis had been immobilized in calcium alginate bead and utilized in batch and continuous reactor for the removal of MB. The kinetic study in the batch and continuous contactor gave greater than 90% removal (Upendar et al, 2016).…”

Section: Adsorbents From Bacterial Biomassmentioning

confidence: 93%

Biomass-Based Adsorbents for Removal of Dyes From Wastewater: A Review

Aragaw

Bogale

2021

Front. Environ. Sci.

149

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Dyes, especially azo dyes contained in wastewaters released from textile, pigment, and leather industries, are entering into natural waterbodies. This results in environmental deterioration and serious health damages (for example carcinogenicity and mutagenesis) through food chains. Physiochemical, membrane processes, electrochemical technology, advanced oxidation processes, reverse osmosis, ion exchange, electrodialysis, electrolysis, and adsorption techniques are commonly used conventional treatment technologies. However, the limitations of most of these methods include the generation of toxic sludge, high operational and maintenance costs. Thus, technological advancements are in use to remediate dyes from effluents. Adsorption using the nonconventional biomass-based sorbents is the greatest attractive alternatives because of their low cost, sustainability, availability, and eco-friendly. We present and reviewed up-to-date publications on biomass-based sorbents used for dye removal. Conceptualization and synthesizing their state-of-the-art knowledge on their characteristics, experimental conditions used were also discussed. The merits and limitations of various biosorbents were also reflected. The maximum dye adsorption capacities of various biosorbents were reviewed and synthesized in the order of the biomass type (algae, agricultural, fungal, bacterial, activated carbon, yeast, and others). Surface chemistry, pH, initial dye concentration, temperature, contact time, and adsorbent dose as well as the ways of the preparations of materials affect the biosorption process. Based on the average dye adsorption capacity, those sorbents were arranged and prioritized. The best fit of the adsorption isotherms (for example Freundlich and Langmuir models) and basic operating parameters on the removal dyes were retrieved. Which biomass-based adsorbents have greater potential for dye removal based on their uptake nature, cost-effectiveness, bulk availability, and mono to multilayer adsorption behavior was discussed. The basic limitations including the desorption cycles of biomass-based adsorbent preparation and operation for the implementation of this technology were forwarded.

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“…were determined for 5 mg/L initial methylene blue concentration. Moreover, B. megaterium was showed 90% Reactive Blue decolorization yield (Upendar et al 2016, Erdem et al 2019. In this work the immobilization of different Bacillus species were showed higher removal efficiency for DB at 10% Na-alginate concentration.…”

Section: The Doracryl Blue Decolorizationmentioning

confidence: 62%

“…In a study in which methylene blue, which is widely used in cotton and silk, was selected as a model dye, the biological removal of MB using Bacillus subtilis immobilized with Caalginate was tested in both batch and continuous contactors. More than 90% removal has been achieved during kinetic study in batch contactor (Upendar et al 2016). Decolorization of the Maxilon red dye by Phanerochaete chrysosporium fungus immobilized in the trickle-bed reactor (TBR) using basal nitrogen-limited growth medium showed a color removal of approximately 94% in 4-5 days (Karimi et al 2009).…”

Section: The Methyl Red Decolorizationmentioning

confidence: 99%

The Decolorization of Synthetic Dyes with Immobilized Bacillus species

Canpolat¹,

Onat

Çetin

2021

Bulletin of Biotechnology

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Although, synthetic dyes have toxic effects on to environment, are very important for coloration of large number of materials and lead to increasing concerns about color removal worldwide. Immobilization of microorganisms is one of the promising techniques for biological treatment of wastewater with the many advantages for industrial usage. This study aimed to determine the efficiency of immobilized four different Bacillus species (B. cereus, B. megaterium, B. subtilis and B. thuringiensis) on decolorization of dyes (maxilon red, methyl red and doracryl blue) at different Na-alginate concentrations. B. megaterium and B. thuringiensis were most effective and decolorized the maxilon red 92.63% and 90.74%, respectively, with the Na-alginate concentration of 2.5%. B. megaterium was the most effective strain in decolorization of doracryl blue with 75.91% decolorization value and with beads at 10% Na-alginate concentration. B. megaterium was the most effective strain in decolorization of methyl red with 64.99% decolorization and the beads were prepared with 10% Na-alginate concentration. Among the four Bacillus species B. megaterium was the most effective in the decolorization experiments of all three dyes. Results of this study could be used as a reference for the development of effective removal technique for dyes in textile wastewater.

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Removal of methylene blue dye using immobilized bacillus subtilis in batch & column reactor

Cited by 17 publications

References 6 publications

Highly Interconnected Macroporous and Transparent Indium Tin Oxide Electrode

Highly Interconnected Macroporous and Transparent Indium Tin Oxide Electrode

Biomass-Based Adsorbents for Removal of Dyes From Wastewater: A Review

The Decolorization of Synthetic Dyes with Immobilized Bacillus species

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