SciELO - Scientific Electronic Library Online

 
vol.18 número1Detección serológica y molecular del Potato virus X (PVX) en tubérculos-semilla de papa (Solanum tuberosum L. y Solanum phureja Juz. & Bukasov) en Antioquia, ColombiaTratamiento de cáncer de seno y farmacogenética índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Compartir


Revista Colombiana de Biotecnología

versión impresa ISSN 0123-3475

Resumen

CAICEDO PINEDA, Gerardo Andrés  y  MARQUEZ GODOY, Marco Antonio. Effect of cysteine in a biodesulfurization process of packed-bed coals. Rev. colomb. biotecnol [online]. 2016, vol.18, n.1, pp.112-120. ISSN 0123-3475.  https://doi.org/10.15446/rev.colomb.biote.v18n1.50471.

Biodesulphurization processes of a two sulphur-rich coals from Colombia ("Mina Vieja" y "Vampiro") were carried out at packed-bed reactors at erlenmeyer level, using a consortium of Acidithiobacillus ferrooxidans (ATCC 23270) and Acidithiobacillus thiooxidans (ATCC 15494). Cysteine addition were evaluated. The assays were monitored by measurements of iron content, pH, and redox potential. X-ray diffraction (XRD) were used to establish the mineralogy before and after the process. The assays without cysteine respectively reached a pyrite oxidation of 45.3% ("Mina Vieja") and 57.9% ("Vampiro") after 38 days. Cysteine addition improved pyrite oxidation by 14.9% ("Mina Vieja") and 6.4% ("Vampiro"). On the other hand, all the assays removed kaolinite by interaction with sulphuric acid of the media. In base to the results, coal compounds influence bacterial growth and affects the efficiency of cysteine over pyrite oxidation.

Palabras clave : coal biodesulphurization; packed-bed reactor; cysteine; Acidithiobacillus ferrooxidans; Acidithiobacillus thiooxidans.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons