SciELO - Scientific Electronic Library Online

 
vol.85 número205Obtention and characterization of lithium superionic conductors using the glass-ceramic methodFlash flotation of free coarse gold using dithiophosphate and dithiocarbamate as a replacement for traditional amalgamation índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

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

Compartilhar


DYNA

versão impressa ISSN 0012-7353

Resumo

HERNANDEZ, Diana Margarita; HURTADO, Lucia Andrea del Pilar  e  RODRIGUEZ-CHAPARRO, Adela Tatiana. Hydrogen production in a novel configuration of UASB reactor under different hydraulic retention time. Dyna rev.fac.nac.minas [online]. 2018, vol.85, n.205, pp.157-162. ISSN 0012-7353.  http://dx.doi.org/10.15446/dyna.v85n205.70494.

The aim of this work was to evaluate the production of hydrogen in a conventional and hybrid Upflow Anaerobic Sludge Blanket (UASB) reactors by modifying the hydraulic retention time (HRT). Both reactors operated continuously close to 135 days, with organic loading rate (OLR) of 11.26 kgCOD.m-3.d-1 at 12, 8 and 4 h. In the hybrid reactor, Biopack® rings with polyurethane foam at its center were used. The results showed that the UASB hybrid reactor achieved a stable and continuous production of over 60% of hydrogen gas at each HRT, related to carbon dioxide reduction until the end of the operation. The ANOVA and TUKEY tests, with a 95% reliability level, showed that there was a significant difference between the HRT evaluated, observing that the highest hydrogen production was obtained with 4 h of HRT. In the conventional UASB reactor, there was no stability during the operation time.

Palavras-chave : Biopack® rings; total volatile acids; UASB reactors.

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