Agricultural waste peels have been recognized as an ecological burden for the society. However, waste
peels, as lignocellulosic biomass-rich materials, have stimulated new gateways for the production of
renewable, low cost and sustainable adsorbents for water treatment applications. This review compiles
the work conducted by various researchers over the last few decades on the use of various agricultural
waste peels as adsorbents for the water and wastewater treatment. In this review, adsorption capacities
for organic and inorganic pollutants by different peel-based adsorbents are summarized. Wherever applicable,
different modification methods, which have been employed to develop modified peel-based adsorbents,
have also been presented to highlight and discuss the key advancements on the preparation of
novel adsorbents using agricultural waste peels. Adsorption mechanisms responsible for pollutants
removal by peel-based adsorbents have also been discussed. Finally, conclusions have been drawn from
the literature reviewed. The paper also discusses the future research needs in the area of biosorbent
development utilizing agricultural waste peels for application in water treatment.
Agricultural waste peels have been recognized as an ecological burden for the society. However, wastepeels, as lignocellulosic biomass-rich materials, have stimulated new gateways for the production ofrenewable, low cost and sustainable adsorbents for water treatment applications. This review compilesthe work conducted by various researchers over the last few decades on the use of various agriculturalwaste peels as adsorbents for the water and wastewater treatment. In this review, adsorption capacitiesfor organic and inorganic pollutants by different peel-based adsorbents are summarized. Wherever applicable,different modification methods, which have been employed to develop modified peel-based adsorbents,have also been presented to highlight and discuss the key advancements on the preparation ofnovel adsorbents using agricultural waste peels. Adsorption mechanisms responsible for pollutantsremoval by peel-based adsorbents have also been discussed. Finally, conclusions have been drawn fromthe literature reviewed. The paper also discusses the future research needs in the area of biosorbentdevelopment utilizing agricultural waste peels for application in water treatment.
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