Arsenic adsorption by polyvinyl pyrrolidone K25 coated cassava peel carbon from aqueous solution

Agricultural waste peels as versatile biomass for water purification – A review

“…Both adsorbents were found efficient for dyes and metal ions, however, the material impregnated with H 3 PO 4 showed higher efficiency than the heat treated materials. Sorption of arsenic from aqueous solution was carried out using polyvinyl pyrrolidone (PVP) K25 coated cassava peel carbon (PVPCC) [93]. In batch studies, the adsorption was dependent on initial As(V) concentration and adsorbent dosage.…”

“…The reusability of the adsorbents was measured by repeating the metal ion adsorption-desorption cycle 4 to 5 times using the same adsorbents. The reversibility of As(V) adsorption onto PVPCC was studied at different pH values [93]. The investigation was carried out using spent adsorbent used previously.…”

Biosorption equilibrium and kinetics of copper (II) from aqueous solution using dead leaves of plane tree

“…Because of its low-cost and easy availability, biomass has been often investigated to remove metal ions from aqueous solutions, such as crab shell particles [8], fungus [9], granular kohlrabi peel [10], algae [11], banana stalk waste [12], rice husk ash [13] and coconut coir [14], activated carbons developed from three different biomass [15][16], tobacco dust [17] and pinus sylvestris sawdust [1]. Results of these studies have illustrated biosorbents exhibit high affinity for heavy metals.…”

An excellent arsenic(V) sorption behavior of p-tert-butylcalix[8]areneoctamide impregnated resin

“…However, these new techniques are in the developmental stages; consequently, innovative costeffective treatment processes are urgently needed [15]. Recently, polyvinyl pyrrolidone K25 coated cassava peel carbon has been applied for the removal of arsenic [16].…”