naa a22 4500 510750761 CHVBK 20180411083103.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11270-012-1383-2 doi (NATIONALLICENCE)springer-10.1007/s11270-012-1383-2 Biosorption of Cadmium from Water Using Moringa ( Moringa oleifera Lam.) Seeds [Elektronische Daten] [Ana Meneghel, Affonso Gonçalves Jr., Fernanda Rubio, Douglas Dragunski, Cleber Lindino, Leonardo Strey] This study aimed to evaluate the efficacy of using the byproduct of Moringa oleifera Lam. seeds as an adsorbent for removal of cadmium (Cd) from contaminated water. The material characterization was performed by scanning electron microscopy, infrared spectroscopy, and point of zero charge. The effects of the adsorbent mass, solution pH, contact time, and temperature were evaluated. In the preliminary studies, the mass of adsorbent (200-1200mg) and pH conditions (5.0, 6.0, and 7.0) were varied. The time studies were performed at 20-180min and the temperature studies at the range of 25-65°C. The optimal conditions of adsorption obtained were 400mg of adsorbent mass, 7.0 pH, and 160min contact time with the adsorbent. The isotherms of adsorption were linearized according to Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) models. The results showed better fit by the Freundlich and D-R models for Cd adsorption, describing a multilayer adsorption and, according to the value of the sorption energy (E), it has chemical nature. The maximum capacity of adsorption (Q m) obtained was 7.864mg g−1. For a comparative study, the activated carbon (P.A.) was used applying the same optimal conditions used in the adsorption isotherms and desorption process for the biosorbent, obtaining a Q m as 32.884mg g−1. The average desorption percentage showed that adsorbents have strong interaction with the metal. Based on these results, it was concluded that the biosorbent was effective in remediation of solutions containing Cd and thus the use of this alternative material is a viable option, since it has low cost and it is a byproduct which has not undergone previous treatment. Springer Science+Business Media Dordrecht, 2013 Water nationallicence Biosorption nationallicence Cadmium nationallicence Moringa nationallicence Remediation nationallicence Meneghel Ana Centro de Ciências Agrárias, Universidade Estadual do Oeste do Paraná, Unioeste, Rua Pernambuco, 1777, 85960-000, Marechal Cândido Rondon, PR, Brazil aut Gonçalves Jr. Affonso Centro de Ciências Agrárias, Universidade Estadual do Oeste do Paraná, Unioeste, Rua Pernambuco, 1777, 85960-000, Marechal Cândido Rondon, PR, Brazil aut Rubio Fernanda Centro de Ciências Agrárias, Universidade Estadual do Oeste do Paraná, Unioeste, Rua Pernambuco, 1777, 85960-000, Marechal Cândido Rondon, PR, Brazil aut Dragunski Douglas Universidade Paranaense, UNIPAR, Praça Mascarenhas de Moraes, s/n, 87502-210, Umuarama, PR, Brazil aut Lindino Cleber Centro de Engenharias e Ciências Exatas, Universidade Estadual do Oeste do Paraná, Unioeste, Rua da Faculdade, 645, Jardim La Salle, 85903-000, Toledo, PR, Brazil aut Strey Leonardo Centro de Ciências Agrárias, Universidade Estadual do Oeste do Paraná, Unioeste, Rua Pernambuco, 1777, 85960-000, Marechal Cândido Rondon, PR, Brazil aut Water, Air, & Soil Pollution Springer Netherlands 224/3(2013-03-01), 1-13 0049-6979 224:3<1 2013 224 11270 https://doi.org/10.1007/s11270-012-1383-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-012-1383-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Meneghel Ana Centro de Ciências Agrárias, Universidade Estadual do Oeste do Paraná, Unioeste, Rua Pernambuco, 1777, 85960-000, Marechal Cândido Rondon, PR, Brazil aut NATIONALLICENCE 700 1- Gonçalves Jr Affonso Centro de Ciências Agrárias, Universidade Estadual do Oeste do Paraná, Unioeste, Rua Pernambuco, 1777, 85960-000, Marechal Cândido Rondon, PR, Brazil aut NATIONALLICENCE 700 1- Rubio Fernanda Centro de Ciências Agrárias, Universidade Estadual do Oeste do Paraná, Unioeste, Rua Pernambuco, 1777, 85960-000, Marechal Cândido Rondon, PR, Brazil aut NATIONALLICENCE 700 1- Dragunski Douglas Universidade Paranaense, UNIPAR, Praça Mascarenhas de Moraes, s/n, 87502-210, Umuarama, PR, Brazil aut NATIONALLICENCE 700 1- Lindino Cleber Centro de Engenharias e Ciências Exatas, Universidade Estadual do Oeste do Paraná, Unioeste, Rua da Faculdade, 645, Jardim La Salle, 85903-000, Toledo, PR, Brazil aut NATIONALLICENCE 700 1- Strey Leonardo Centro de Ciências Agrárias, Universidade Estadual do Oeste do Paraná, Unioeste, Rua Pernambuco, 1777, 85960-000, Marechal Cândido Rondon, PR, Brazil aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/3(2013-03-01), 1-13 0049-6979 224:3<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer