Abstract:
:The contamination of bodies of water by potentially hazardous elements has in recent decades become an environmental problem that poses serious risks to humans, fauna, flora and microbiota, compromising the quality of life of the present ecosystem. Therefore, effluents must be properly treated in a legally acceptable manner before their disposal in the environment. With this in mind, adsorption presents itself as an inexpensive efficient technique for the removal of potentially hazardous elements from effluents with excellent adsorption capacities when natural adsorbents are used. In this study, fava d'anta fodder was used in its crude and alkalinized form to remove Cu(II) and Pb(II) ions. Equilibrium studies were carried out using adsorption isotherms in batch systems with mono- and multi-elementary systems containing the two ions. The Langmuir and Freundlich models were applied to the isotherm studies, with the ions being better suited to the Langmuir model, with maximum adsorption capacities of 24.45 mg g-1 and 68.49 mg g-1 (crude form) and 11.12 mg g-1 and 35.34 mg g-1 (alkalinized form) in the mono-elementary system for Cu(II) and Pb(II) ions, respectively.
journal_name
Environ Geochem Healthjournal_title
Environmental geochemistry and healthauthors
Santana AH,Araújo JAS,Bento AMS,Santos AR,Santos LG,Gomes HO,da Costa JGM,Menezes JMC,Coutinho HDM,Filho FJP,Teixeira RNPdoi
10.1007/s10653-020-00545-ysubject
Has Abstractpub_date
2020-03-06 00:00:00eissn
0269-4042issn
1573-2983pii
10.1007/s10653-020-00545-ypub_type
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