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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Agricultural solid waste for sorption of metal ions, part II: competitive assessment in multielemental solution and lake water

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Milani, Priscila Aparecida [1, 2] ; Consonni, Joao Luiz [3] ; Labuto, Georgia [4] ; Vasconcelos Martins Carrilho, Elma Neide [1, 2]
Total Authors: 4
[1] Univ Fed Sao Carlos, Dept Ciencias Nat Matemat & Educ, BR-13600970 Araras, SP - Brazil
[2] Univ Fed Sao Carlos, Lab Mat Polimer & Biossorventes, BR-13600970 Araras, SP - Brazil
[3] Univ Fed Sao Carlos, Dept Recursos Nat & Protecao Ambiental, BR-13600970 Araras, SP - Brazil
[4] Univ Fed Sao Paulo, Dept Quim, BR-09913030 Diadema, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Environmental Science and Pollution Research; v. 25, n. 36, SI, p. 35906-35914, DEC 2018.
Web of Science Citations: 4

Sugarcane bagasse and hydroponic lettuce roots were used as biosorbents for the removal of Cu(II), Fe(II), Mn(II), and Zn(II) from multielemental solutions and lake water, in batch processes. These biomasses were studied in natura (lettuce roots, NLR, and sugarcane bagasse, NSB) and chemically modified with HNO3 (lettuce roots, MLR, and sugarcane bagasse, MSB). The results showed higher adsorption efficiency for MSB and either NLR or MLR. The maximum adsorption capacities (q(max)) in multielemental solution for Cu(II), Fe(II), Mn(II), and Zn(II) were 35.86, 31.42, 3.33, and 24.07mg/g for NLR; 25.36, 27.95, 14.06, and 6.43mg/g for MLR; 0.92, 3.94, 0.03, and 0.18mg/g for NSB; and 54.11, 6.52, 16.7, and 1.26mg/g for MSB, respectively. The kinetic studies with chemically modified biomasses indicated that sorption was achieved in the first 5min and reached equilibrium around 30min. Sorption of Cu(II), Fe(II), Mn(II), and Zn(II) in lake water by chemically modified biomasses was 24.31, 14.50, 8.03, and 8.21mg/g by MLR, and 13.15, 10.50, 6.10, and 5.14mg/g by MSB, respectively. These biosorbents are promising and low costs agricultural residues, and as for lettuce roots, these showed great potential even with no chemical modification. (AU)

FAPESP's process: 16/06271-4 - Development of adsorbents from yeast biomass residue from industrial fermentation processes to remove emerging contaminants from water and effluents
Grantee:Geórgia Christina Labuto Araújo
Support type: Regular Research Grants