A comprehensive investigation of green solutions for sustainable wastewater remediation: A review

Hublikar, Leena V.; Shilar, Fatheali A.; Suliphuldevara Mathada, Basavarajaiah; Ganachari, Sharanabasava V.

doi:10.1016/j.molliq.2024.124532

Cited by 4 publications

(1 citation statement)

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“…There is considerable focus on producing engineered biochar with heightened porosity and extensive specific surface area. Engineered biochar holds significant promise for a range of environmental applications, particularly in wastewater treatment [ 88 ]. Produced using simple biomass pyrolysis methods, biochar showcases unique characteristics like its porous structure and sufficient surface area, rendering it highly efficient in adsorbing and removing organic dyes from wastewater [ 42 ].…”

Section: Biochar Productionmentioning

confidence: 99%

Advancements in application of modified biochar as a green and low-cost adsorbent for wastewater remediation from organic dyes

Hama Aziz,

Fatah,

Muhammad

2024

R. Soc. Open Sci.

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Synthetic organic dyes, which are resistant to biodegradation, pose a notable health risk, potentially leading to cancer and respiratory infections. Researchers have addressed this concern by exploring physicochemical methods to remove organic dyes from wastewater. A particularly promising solution involves modified biochar adsorbents, which demonstrate high efficiency in organic dye removal. Biochar, a charcoal-like material derived from biomass pyrolysis, offers advantages such as low cost, eco-friendliness, high efficiency and reusability. Beyond its role in sustainable soil remediation, biochar proves effective in removing organic dyes from wastewater after undergoing physical or chemical modification. Acid–base activation or metal–heteroatom impregnation enhances biochar's adsorption capacity. This comprehensive review examines the attributes of biochar, common methods for production and modification, and the impacts of raw materials, pyrolysis temperature, heating rate and residence time. It further elucidates the biochar adsorption mechanism in the removal of organic dyes, assessing factors influencing efficiency, including biochar feedstock, solution pH, adsorption temperature, particle size, initial dye concentration, biochar dosage and reaction time. It explores challenges, opportunities, reusability and regeneration methods of biochar in treating organic dye wastewater. It also discusses recent advances in organic dye removal using adsorption-based biochar. The review ultimately advocates for enhancing biochar's adsorption performance through post-modification.

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Section: Biochar Productionmentioning

confidence: 99%