A comprehensive analysis of biosorptive removal of basic dyes by different biosorbents

Saravanan, P.; Jegan, J.; Thillainayagam, Bhagavathi Pushpa

doi:10.1016/j.enmm.2021.100560

Cited by 14 publications

(4 citation statements)

References 86 publications

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“…It can also be noted that concrete bricks have harder materials in its composition on comparing with the softer biochar bricks, due to the material composition also the hardness can be affected. BC2 was very soft and hence a value wasn't obtained [12,13].…”

Section: Water Absorptionmentioning

confidence: 99%

Characterization of Biochar Bricks to be used as a Construction Material

Nithyalakshmi

Soundarya

Saravanan

2022

J. Phys.: Conf. Ser.

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The experimental work on characterization of biochar bricks as a construction material is summarized in this manuscript. This is an important topic to research due to the dearth of knowledge about biochar construction materials and their potential to reduce global warming. Biochar is a charcoal-like substance formed from organic matter decomposition in the absence of oxygen at high temperatures. The use of bio char in a range of applications will help in cutting down CO2 emissions, recycling of organic and plastic waste, and in creation of more jobs. Current applications of bio-char is limited to being used as Soil additives to promote water absorption, plaster to absorb humidity, and energy alternatives to replace fossil fuels. The present study attempts to characterize bio-char bricks for usage in construction. Two types of bio-char bricks were cast and compared to normal concrete bricks. The first set of bricks had 70% biochar and 30% cement, whereas the second set contained 45 percent biochar, 45 percent plastic, and 10% cement. The bricks were characterized using five tests: compressive strength, water absorption, hardness, flammability, and insulation value.

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Section: Water Absorptionmentioning

confidence: 99%

Characterization of Biochar Bricks to be used as a Construction Material

Nithyalakshmi

Soundarya

Saravanan

2022

J. Phys.: Conf. Ser.

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“…These biosorbents are more eco-friendly and efficient at adsorbing dyes. According to reports, biosorption is efficient for maximizing color removal from dye-contaminated fluids 9 .…”

Section: Introductionmentioning

confidence: 99%

Novel amino-ethyl carboxymethyl cellulose crosslinked ampholyte hydrogel development for Methyl orange removal from waste water

Omer,

Sadik,

Abbas

et al. 2024

Sci Rep

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In the modern era, with the rapid growth of various industries, the issues of energy crisis and environmental pollution have garnered increasing attention. One significant source of industrial pollution is printing and dyeing wastewater. This wastewater often contains dyes that have aromatic structures and azo groups, such as Methyl orange (MO), which are both toxic and difficult to degrade. If these dyes are released into the wastewater stream without any treatment, they can have adverse effects on ecological balance and human health. Therefore, it is crucial to identify suitable treatment strategies to efficiently remove dyes from wastewater systems before discharge. In this study, the Methyl orange (MO) azo dye has been removed from dyes-contaminated wastewater, for the first time, using a novel amino-ethyl carboxymethyl cellulose crosslinked ampholyte hydrogel (AECMC). Different characterization methods, including FTIR, TGA, and DSC were used to characterize the generated AECMC compounds. The water absorption and cationic exchange capacities were assessed. Factors affecting the MO anions adsorption including MO concentration, adsorption pH, temperature, time, adsorbent dose, and agitation speed have been investigated. Moreover, the kinetics of the adsorption process was assessed by the use of three models: pseudo-first-order, Pseudo-second-order, and Elovich. Moreover, the mechanism of the adsorption process was monitored using the Intraparticle diffusion and Boyd models. Additionally, the adsorption isotherm was examined using established models such as Langmuir, Freundlich, and Temkin isotherms. The thermodynamic characteristics of the MO adsorption process have been investigated at various adsorption temperatures using the Van't Hoff model. The results obtained from the study indicate that the process of MO adsorption adhered to the Pseudo-second-order kinetic model, the Langmuir isotherm model was found to be applicable, and spontaneous and exhibited an endothermic character. In conclusion, the developed novel amino-ethyl carboxymethyl cellulose crosslinked ampholyte hydrogels (AECMC) have successive in the removal of the MO anionic dye from contaminated wastewater.

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“…Among these researches, it is possible to come across various biological materials, both dry and wet. 13 These include lichen, 14 algae, 15 tree and fruit residues, 16,19 seeds, 20-23 and aquatic plants. 12,24 Although some adsorption studies with palm species were found among previous studies, no adsorption studies with Washingtonia filifera fibers were found.…”

Section: Introductionmentioning

confidence: 99%

The usage of palm (Washingtonia filifera) fibers for the removal of crystal violet from synthetic dye solution by adsorption

Karabaş

Keskınkan

Sarı

et al. 2022

International Journal of Chemistry and Technology

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The objective to obtain cheap and easily synthesized adsorbents from natural materials is gaining importance day by day. Adsorbents should be environmentally friendly, non-toxic, easily produced, insoluble in water, have a porous structure, a large surface area, and scientifically accepted. In this study, the removal of crystal violet dye from synthetic dyestuff solution was investigated using palm tree (Washingtonia filifera) fibers. As a result of removal studies carried out in unmixed and mixed conditions, the lowest removal efficiency was determined as 18% after 60 minutes for the solution with a crystal violet concentration of 10 mg/L under static conditions. The highest removal efficiencies were reached after 180 minutes for solutions with initial crystal violet concentrations of 5 and 10 mg/L under stationary and mobile operating conditions, respectively. As a result of the study, it was determined that the highest crystal violet removal was 87% after 120 minutes of retention time and the removal complied with the pseudo-second order type 1kinetic model. It was also understood that palm fiber, which is an environmentally advantageous material, can be used in the removal of crystal violet dyestuff.

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A comprehensive analysis of biosorptive removal of basic dyes by different biosorbents

Cited by 14 publications

References 86 publications

Characterization of Biochar Bricks to be used as a Construction Material

Characterization of Biochar Bricks to be used as a Construction Material

Novel amino-ethyl carboxymethyl cellulose crosslinked ampholyte hydrogel development for Methyl orange removal from waste water

The usage of palm (Washingtonia filifera) fibers for the removal of crystal violet from synthetic dye solution by adsorption

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