Water treatment: Chitosan associated with electrochemical methods

2nd International Conference on Mining, Material and Metallurgical Engineering

矿业工程;材料科学;冶金学

Tamiasso-Martinhon, Priscila^1 ; De Souza, João Marques Teixeira^2 ; Da Silva, Silvia Maria Cruzeiro^2 ; Pessoa, Fernando Luiz Pellegrini^2 ; Sousa, Célia^1

Federal University of Rio de Janeiro (UFRJ/IQ/DFQ), Cidade Universitária, Av. Athos da Silveira Ramos, 149-CT-Bloco A Lab. 411, Rio de Janeiro, RJ

21941-909, Brazil^1

Federal University of Rio de Janeiro (UFRJ), Escola de Química, Programa de Pos-Graduacao em Tecnologia de Processos Quimicos e Bioquimicos, Cidade Universitária, Av. Horácio Macedo, 2030-CT-Bloco E-Sala 200, Rio de Janeiro, RJ

21941-909, Brazil^2

关键词: Biodegradable biopolymers;    ELectrochemical methods;    Electrochemical technology;    Environmental problems;    Exploratory studies;    Industrial sector;    Oil-in-water emulsions;    Purification of water;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/191/1/012008/pdf
DOI  :  10.1088/1757-899X/191/1/012008

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Pollution of water bodies due to the presence of toxic metals and organic compounds, bring out a series of environmental problems of public, government and social character. In addition, water pollution, has become the target and source of concern in many industrial sectors. Therefore, it is essential to develop technologies for treatment and purification of water. Chitosan is a natural product derived from chitin, extracted mainly from the shells of crustaceans. It is a low cost, renewable and biodegradable biopolymer of great socioeconomic and environmental importance. The classic treatment of wastewater containing metals involves physical chemistry processes of precipitation, ion exchange and electrochemistry. Electrochemical technology has been presented as the most promising methods for treating wastewater polluted with metals, colloids, dyes or oil in water emulsions; besides being used in removing organic compounds. Alternative methods like adsorption with biosorbents have been investigated. The great advantage of this latter over other techniques is the low generation of residues, easy recovery of metals and the possibility of reuse of the adsorbent. This article aimed to carry out an exploratory study, of bibliographical nature, on the use of chitosan in electrochemical methods for water treatment.