Study of the influence of pH and reaction kinetics of adsorption of Ni and Zn by red mud, byproduct of the aluminum industry

• Grant number: 13/00994-6
• Support Opportunities: Scholarships in Brazil - Master
• Start date: October 01, 2013
• End date: September 30, 2015
• Field of knowledge: Physical Sciences and Mathematics - Geosciences
• Principal Investigator: Fabiano Tomazini da Conceição
• Grantee: Beatriz Cestaro Pichinelli
• Host Institution: Faculdade de Engenharia (FE). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

Red mud is a waste generated by the extraction of aluminum from bauxite by the Bayer process. The amount of red mud produced is very large and requires a wide area for disposal. Although not classified as a hazardous waste, red mud has the potential to cause contamination of surface water and groundwater and can also cause caustic rainfalls, reaching the vegetation and animals in neighboring regions. With growing concern to reduce waste generation in industrial and find technologies that allow the reuse of waste generated, there is the alternative of using red mud as adsorbent for heavy metal in treatment of contaminated areas and wastewater. This study aimed to analyze the influence of pH variation in adsorption of Ni and Zn, besides finding the equilibration time and analyzing the reaction kinetics of adsorption of these metals by red mud. Therefore, it will be possible to perform a comparative study of the adsorption capacity between different activations of red mud and its natural form, and investigate the possible use of red mud as a low cost adsorbent for the treatment of liquid and gaseous effluents contaminated by metals.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PICHINELLI, BEATRIZ CESTARO; GABRIEL DA SILVA, MARIANA SCICIA; DA CONCEICAO, FABIANO TOMAZINI; MENEGARIO, AMAURI ANTONIO; PEREIRA ANTUNES, MARIA LUCIA; BELTRAN NAVARRO, GUILLERMO RAFAEL; MORUZZI, RODRIGO BRAGA. Adsorption of Ni(II), Pb(II) and Zn(II) on Ca(NO3)(2)-Neutralised Red Mud. WATER AIR AND SOIL POLLUTION, v. 228, n. 1, JAN 2017. (09/02374-0, 13/00994-6)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

PICHINELLI, Beatriz Cestaro. Estudo da adsorção de níquel (II) e zinco (II) em soluções aquosas por lama vermelha natural e ativada: influência do PH, isotermas, cinética e termodinâmica. 2015. Master's Dissertation - Universidade Estadual Paulista (Unesp). Faculdade de Engenharia. Bauru Bauru.