Adsorption of copper (II) ions to peanut hulls and Pinus brutia sawdust

Abstract

Adsorption of copper (II) ions to untreated peanut hulls and untreated Pinus brutia sawdust was investigated as a function of the contact time, amount of adsorbents, initial pH, temperature and initial metal ion concentration. Adsorption efficiency was increased by increasing contact time, amount of adsorbents and decreasing initial metal ion concentration. The optimum adsorption conditions were obtained at pH 5.0. Experimental results indicate that peanut hulls are a more effective adsorbent than Pinus brutia sawdust for the removal of Cu (II) from aqueous solutions. The isothermal data of peanut hulls could be well described by the Langmuir and Freundlich equations.

Sorption characteristics of Cu(II) ions onto silica gel-immobilized calix[4]arene polymer in aqueous solutions: Batch and column studies

“…Although direct comparison of APSIC [4]P with other sorbent materials is difficult, owing to the different applied experimental conditions, it was found, in general, the adsorption capacity of APSIC[4]P for Cu(II), using equilibrium experiments, determined to be around 5.08 mg Cu(II)/g APSIC[4]P, is higher than fly ash + wollastonite [22], fly ash, dead fungal biomass (Schizophyllum communie) [23], sawdust [24], baggase fly ash [25], peanut hulls [26], cork bark [27], natural zeolite [28], olive pomace [29] and powder activated carbon [30]. The values of sorption properties of Cu(II) in different sorbents used in the literature with the sorbent of the present study are summarized in Table 2.…”

Adsorption of Cu(II) ions on cotton boll

“…In recent years, there has been considerable interest in the use of biological materials including, algae, bacteria, fungi, agricultural by-products and residues as adsorbents to remove toxic metals from aqueous solution by adsorption since they are cheap and have high efficiency adsorbents for adsorption of pollutants [5][6][7][8][9]. One of the agricultural by-products from waste of cotton factory is cotton boll, which are an abundant, cheap and readily available residue.…”

Removal of cationic dye methylene blue (MB) from aqueous solution by Coffee and Peanut husk Modified with Magnetite Iron Oxide Nanoparticles

“…Skin will be separated for processing of peanuts, so a lot of peanut husk is available. Recently, It has been found that peanut husks can efficiently remove copper ions from waste water [20]. So, this study focused on coffee and peanut husk modified with magnetite iron oxide nanoparticles as adsorbents for removal of MB.…”