Estudo de metais pesados na biodigestão de lodos

Authors

  • Maria de los Angeles Rodenas-Garcia CETESB
  • Marcos Eduardo de Souza

Keywords:

anaerobic digestion, sludge digestion, anaerobic digestion toxicity, Zn toxicity, sulfide effect, inhibition

Abstract

ln order to provide sound information to operate Municipal Treatment Plant digesters at highly industrialized areas, studies on metal toxicity to anaerobic digestion were developed. This paper presents results achieved in lab scale digesters with discontinuous zinc additions. Two control digesters plus two test digesters were run, one wit ZnCl2 additions and the other with ZnSO4 additions. Zn was added to the feed sludge at increasing concentrations until inhibition was observed. Inhibitory concentrations in 'the digesters were 960 mgZn/l (added as ZnSO4) and 275 mgZn/l (added as ZnC12).

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Author Biographies

Maria de los Angeles Rodenas-Garcia, CETESB

Farmacêutica-Bioquímica da Cetesb

Marcos Eduardo de Souza

Engenheiro Químico Consultor, Mestre em Engenharia

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Published

1990-01-01

How to Cite

RODENAS-GARCIA, M. de los A. .; SOUZA, M. E. de. Estudo de metais pesados na biodigestão de lodos. Revista Ambiente, São Paulo, v. 4, n. 1, p. 62–64, 1990. Disponível em: https://revistacetesb.emnuvens.com.br/revista/article/view/92. Acesso em: 18 dec. 2024.

Issue

Vol. 4 No. 1 (1990)

Section

Artigos