Enhanced removal of Indigo Carmine dye from textile effluent using green cost-efficient nanomaterial: Adsorption, kinetics, thermodynamics and mechanisms

Sustainable Chemistry and Pharmacy, Journal Year: 2022, Volume and Issue: 29, P. 100753 - 100753

Published: June 21, 2022

The release of Indigo Carmine in waterbodies may cause serious impact aquatic ecosystems and human health. There is an interest developing green, low-cost effective adsorbents for the removal toxic dyes from textile effluents. This study proposed adsorbent material at nanoscale using waste Moringa oleifera seeds generated after oil extraction. were grounded to obtain nanoscale. Batch-adsorption tests carried out evaluate capacity absorbent retain liquid solutions. following variables studied: pH, adsorbent-dye ratio, contact time, initial dye concentration temperature. adsorption process fitted Langmuir isotherm equilibrium power function kinetic behavior. maximum nanoparticles was 60.24 mg/g, which 4.3 times higher than that bulk seeds. Thermodynamic results proved spontaneous exothermic. Hydrogen bonding, electrostatic interlinkage π–π interactions identified as dominant mechanisms on nanoparticles. adsorption-desorption resulted a slight decrease 4 cycles, 94% 88%. effluent (85%) similar with pure solutions (91%). suggested feasibility seed promising, green low cost wastewaters dyes.

Language: Английский

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Biochar application for remediation of organic toxic pollutants in contaminated soils; An update

Ecotoxicology and Environmental Safety, Journal Year: 2022, Volume and Issue: 248, P. 114322 - 114322

Published: Nov. 29, 2022

Bioremediation of organic contaminants has become a major environmental concern in the last few years, due to its bio-resistance and potential accumulate environment. The use diverse technologies, involving chemical physical principles, passive uptake utilizing sorption using ecofriendly substrates have drawn lot interest. Biochar got attention mainly simplicity manufacturing, treatment, disposal, as it is less expensive more efficient material, for remediation contaminants. This review highlighted adverse impact persistent pollutants on environment soil biota. utilization biochar remediate contaminated compounds i.e., pesticides, polycyclic aromatic hydrocarbons, antibiotics, dyes also been discussed. application significant biodegradation, leaching, sorption/desorption influenced by composition structure, porosity, surface area, pH, elemental ratios, functional groups biochar. All above characteristics depend type feedstock pyrolysis conditions. However, concentration nature significantly alters capability Therefore, physicochemical properties soils/wastewater, contaminants, should be evaluated before wastewater. Future initiatives, however, are needed develop biochars with better adsorption capacity, long-term sustainability xenobiotic/organic contaminant strategy.

Language: Английский

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Green sorbents from agricultural wastes: A review of sustainable adsorption materials

Applied Surface Science Advances, Journal Year: 2023, Volume and Issue: 19, P. 100562 - 100562

Published: Dec. 21, 2023

Rapid growth in socio-economic requirements and climatic change has put much pressure on the quality of water resources. To prevent future shortage fresh to keep up with current demand for water, wastewater reuse, recycling are among most pressing issues that must be addressed immediately. So far, many technologies have been used remove both inorganic organic pollutants from wastewater. Unfortunately, modern treatment still out reach financially developing nations, making it difficult them eliminate these toxins. Moreover, increasing environmental toxicity solid waste exposures is also a major cause worry. Intending combat issues, research efforts increased develop an efficient, eco-friendly low cost biosorbent agricultural treat As result, there focus identifying locally regionally accessible agriculture wastes removal heavy metals/metalloids dyes. This article aims review multidisciplinary approach handle as potential resource treatment. A comprehensive discussion included fundamentals biosorption involved mechanism. The strategies improve efficiency biosorbents discussed. In addition, developments various derived different their application toxic elements using diverse methods reviewed set stage further investigation. Finally, regeneration challenges implement addressed. will help bridge gap between laboratory findings industrial application, leading development more efficient systems removing pollutants.

Language: Английский

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A comprehensive review on nanotechnology application in wastewater treatment a case study of metal-based using green synthesis

Journal of environmental chemical engineering, Journal Year: 2022, Volume and Issue: 10(4), P. 108065 - 108065

Published: June 15, 2022

Language: Английский

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A review on application of low-cost adsorbents for heavy metals removal from wastewater

Materials Today Proceedings, Journal Year: 2022, Volume and Issue: 77, P. 8 - 18

Published: Sept. 6, 2022

Language: Английский

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