<b>Use of water hyacinth (Eichornia crassipes) dry biomass for removing heavy metals from contaminated solutions</b> - DOI: 10.4025/actascitechnol.v31i1.3166

Authors

  • Affonso Celso Gonçalves Júnior UNIOESTE
  • Claudemir Selzlein UNIOESTE
  • Herbert Nacke UNIOESTE

DOI:

https://doi.org/10.4025/actascitechnol.v31i1.3166

Keywords:

adsorção de metais, poluição hí­drica, tratamento de efluentes

Abstract

The present work evaluated the efficiency of the dry biomass of water hyacinth (Eichornia crassipes) in the removal of heavy metals cadmium (Cd), lead (Pb), chromium (Cr), cupper (Cu), zinc (Zn) and nickel (Ni) from solutions prepared with these metals. The delineation used was entirely randomized, with five treatments (solutions with different concentrations of heavy metals) and four repetitions. The dry biomass remained in the treatment solutions for a period of 48h. In the intervals of 1; 2; 3; 6; 12; 24; 36 and 48h after experiment installation, samples were collected of each treatment, determining the greater removal for each heavy metal by water hyacinth dry biomass. Nitro-perchloric digestion was conducted in the dry biomass, and metal levels were determined in the dry biomass and in the samples by atomic absorption spectrometry, flame modality. The metals Cd, Pb, Cr, Cu e Zn were removed by water hyacinth dry biomass in the different treatments, whereas for Ni removal did not occur. The water hyacinth Eichornia crassipes is an excellent material for removal, in small and larger scales, of water bodies contaminated with heavy metals

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Author Biography

Affonso Celso Gonçalves Júnior, UNIOESTE

Atualmente é Assessor e Coordenador de Pesquisa do Centro de Ciências Agrárias na Unioeste. O Professor Affonso é Avaliador Institucional e Avaliador de Cursos de Graduação do Ministério da Educação MEC/INEP/SINAES desde 2006. É escritor e colunista em alguns Jornais de circulação estadual e nacional Currí­culo Lattes

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Published

2009-04-14

How to Cite

Gonçalves Júnior, A. C., Selzlein, C., & Nacke, H. (2009). <b>Use of water hyacinth (Eichornia crassipes) dry biomass for removing heavy metals from contaminated solutions</b> - DOI: 10.4025/actascitechnol.v31i1.3166. Acta Scientiarum. Technology, 31(1), 103–108. https://doi.org/10.4025/actascitechnol.v31i1.3166

Issue

Vol. 31 No. 1 (2009)

Section

Chemistry

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