Defatted Jojoba for the removal of methylene blue from aqueous solution: Thermodynamic and kinetic studies

Al-Anber, Zaid Ahmed; Al-Anber, Mohammed A.; Matouq, Mohammed; Al-Ayed, Omar; Omari, Nasser M.

doi:10.1016/j.desal.2011.03.043

Cited by 53 publications

(28 citation statements)

References 37 publications

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“…These equations are obtained neglecting diffusion and accumulation terms, assumptions that are valid in chemical engineering practice, provided that strict scale up specifications are kept in the design stage and successful operation conditions are kept in the industrial operation stage [13].…”

Section: Resultsmentioning

confidence: 99%

Fixed-bed-column Studies in Laboratory and Pilot Scale for Methylene Blue Removal and Recovery by Untreated, Autohydrolized and Brine Hydrolized Spruce

Kopsidas¹

2016

JESE-A

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This work reports the practicability of using spruce to remove widely-used basic dyes, like Methylene Blue from wastewaters. In continuous fixed-bed column systems, the effects of parameters, such as bed-depth, flow rate and initial dye concentration, were examined. The results revealed that the Methylene Blue is fairly adsorbed on spruce. This process could be a low-cost technique for the removal of basic dyes from aqueous systems.

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Section: Resultsmentioning

confidence: 99%

Fixed-bed-column Studies in Laboratory and Pilot Scale for Methylene Blue Removal and Recovery by Untreated, Autohydrolized and Brine Hydrolized Spruce

Kopsidas¹

2016

JESE-A

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“…MB is a toxic dye and causes several health risks in humans upon exposure such as nausea, vomiting, eye injury, and methemoglobinemia (Al-Anber et al 2011;Dutta et al 2011;Vucurovic et al 2012). Thus, it is important to remove MB dye from industrial wastewater.…”

Section: Introductionmentioning

confidence: 99%

Biosorption of methylene blue from aqueous solutions by Typha angustata phytomass

Rehman

Han

2012

Int. J. Environ. Sci. Technol.

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The objective of this study was to investigate the biosorption of an azo dye (Methylene blue) by a wetland phytomass (Typha angustata) under post-phytoremediation scenario. Thus, the phytomass was used without any chemical modification. The batch adsorption experiments were conducted to evaluate the effects of contact time and temperatures (25-45°C) on the adsorption of methylene blue (MB) from aqueous solution by cattail phytomass (CP). More than 80 % of MB dye was removed from the aqueous solution within first 10 min of the experiment. Langmuir isotherm was modeled to describe the monolayer adsorption of MB dye (R 2 = 0.995) with the maximum adsorption capacity of 8.1 mg/g at 25°C. Pseudo-second-order kinetic model adequately described the kinetics of absorption process (R 2 = 0.999). The adsorption of MB on the cattail phytomass was a spontaneous and endothermic process that was governed by chemisorption. Hence, CP could be applied as a potential low cost biosorbent to treat dyeing wastewater.

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“…As synthetic dyes have low degradability, conventional biological methods in treating dye wastewater are not efficient. The physico -chemical treatment methods such as ion exchange, ultrafiltration, electrocoagulation, photo-oxidation, reverse osmosis, microwave oxidation etc., have their own significant disadvantages like incomplete removal, high energy requirement and production of toxic sludge as waste products require proper disposal (Al-Anber et al, 2011;Hameed and Ahmad, 2009;Asgher and Bhatti, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…The colored wastewater also affects the photosynthetic activity of aquatic life by reduced penetration. Moreover, dyes are toxic, mutagenic or carcinogenic and disturb the ecosystem (Al-Anber et al, 2011;Garg et al, 2004;Bhattacharyya and Sharma, 2005;Hameed and Ahmad, 2009). Synthetic dyes have low biodegradability due to complex molecular structure and are too hard to eliminate under aquatic environment.…”

Section: Introductionmentioning

confidence: 99%

Biosorption of methylene blue from aqueous solutions by modified mesoporous Simarouba glauca seed shell powder

2015

Global NEST Journal

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The present study investigates the ability of formaldehyde treated Simarouba glauca seed shell powder for removal of methylene blue (MB) from aqueous solutions. Batch adsorption studies were carried out under various experimental conditions such as agitation time, dye concentration, adsorbent dose and pH. The adsorbent was characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), XRD, BET and CHNS analysis. The adsorption data were analysed using Langmuir, Freundlich, Temkin and Dubinin -Radushkevich isotherms. Equilibrium data fitted well to Langmuir isotherm with maximum adsorption capacity of 111.1 mg g -1. Adsorption kinetic data were verified using pseudo first order, pseudo second order and Intraparticle diffusion model. The kinetic data were found to fit well with pseudo second order model.

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Defatted Jojoba for the removal of methylene blue from aqueous solution: Thermodynamic and kinetic studies

Cited by 53 publications

References 37 publications

Fixed-bed-column Studies in Laboratory and Pilot Scale for Methylene Blue Removal and Recovery by Untreated, Autohydrolized and Brine Hydrolized Spruce

Fixed-bed-column Studies in Laboratory and Pilot Scale for Methylene Blue Removal and Recovery by Untreated, Autohydrolized and Brine Hydrolized Spruce

Biosorption of methylene blue from aqueous solutions by Typha angustata phytomass

Biosorption of methylene blue from aqueous solutions by modified mesoporous Simarouba glauca seed shell powder

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