SciELO - Scientific Electronic Library Online

 
 número3LA GLOBALIZACIÓN: MÁS QUE UNA AMENAZA ES UNA OPORTUNIDAD índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


Revista EIA

versão impressa ISSN 1794-1237

Resumo

JIMENEZ, Esteban  e  VILLEGAS, Ana María. DISEÑO DE UN SISTEMA DE BIOFILTRACIÓN PARA LA REMOCIÓN DE ESTIRENO. Rev.EIA.Esc.Ing.Antioq [online]. 2005, n.3, pp.9-20. ISSN 1794-1237.

This work was focused on developing an elimination process of styrene, an organic compound generating complex odors in air, through the design and construction of a biofiltration system, utilizing bacteria of the Pseudomona aeruginosa and Escherichia coli types stuck on a pumice stone support. Air was contaminated with styrene, in concentrations above the American Standard (TLV 40 ppm, ACGIH Worldwide, 2002), to simulate a hazardous work environment to the human health. To evaluate the efficiency of the system, the contaminated inlet air as well as the outlet flow were analyzed by taking direct styrene concentrations measurements with an organic vapor meter. Initially, the results obtained from the styrene degradation were above 55%, for a five-daily-sampling average during 10 days. This percentage was a consequence of the progressive stabilization process of the system within the first days, so the removal was low. However, average removals above 70% and punctual removals above 90% were reached after the eighth day. The pumice stone support demonstrated to be a good alternative to improve biofilm formation; the rapid micropore saturation guaranteed low adsorption of the organic compound and confirmed the elimination of styrene via biodegradation.

Palavras-chave : Odor control; biofiltration; volatile organic compounds (VOC); styrene.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )