Toxic effect evaluation of the lead acetate and chromium chloride on anaerobic bacterial metabolism

  • Beatriz Wills Universidad de Antioquia
  • Fernando Naranjo Universidad de Antioquia
Keywords: toxicity, inhibition, anaerobic digestion, UASB, heavy metal, methanogenesis

Abstract

The toxicity of trivalent chromium and lead to anaerobic sludge system was studied. Performed assay was tested in 60 mL serum vials, the toxicity test to succeed in two steps, first with formic acid and then whey powder as a substrate. Anaerobic toxicity assays were performed taking into account, methane gas production and oxidation-reduction potential (ORP) rate, these tests were considered a useful indicator for monitoring a anaerobic sludge suffering from toxicants, over 72 hours with metals dosage against the control. First of all, exploratory assays in order to know different chromium and lead concentrations were carried out. The assays degradation activity reduced methane by 50% that came into contact with 3.322 mg Cr3+/L and 1.415 mg Pb/L and 2.291 mg Cr3+/L and 1.982 mg Pb/L with formic acid and whey powder as a substrate respectively. Heavy metal concentrations that caused 50% inhibition of methanogenesis during whey and formic acid methanation indicated that toxicity decreased in order Pb>>Cr.

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Author Biographies

Beatriz Wills, Universidad de Antioquia

Ingeniería Sanitaria y Ambiental. Grupo de Ingeniería y Gestión Ambiental, GIGA.

Fernando Naranjo, Universidad de Antioquia

Estudiante de la Maestría en Ingeniería Ambiental. Facultad de Ingeniería. 

References

Zayed, G. y Winter, J. “Inhibition of methane production from whey by heavy metals. Protective effect of sulfide”. En: Applied Microbiology Biotechnology. N.° 53. 2000. pp. 726-731.

Lester, J. Heavy metals in wastewater and sludge treatment processes. Editoral CRC Press. Boca Raton, 1987.

Lin, Chiu-Yue y Chen, Chin-Chao. “Effect of heavy metals on the methanogenic UASB granule”. En: Water Research. Vol. 33. N.° 2. 1999. pp. 409-416.

American Public Health Association. APHA Standard methods for examination of water and waste water. 18th Ed. New York, 1992.

Saldarriaga, Julio. Evaluación de la presión selectiva y de la adición de bacterias liofilizadas como alternativas de mejoramiento de una semilla de lodo activado crudo espesado para el arranque de reactores UASB. Tesis de grado para optar al título de magíster en Ingeniería Ambiental. Universidad de Antioquia. Medellín, Colombia, 2000.

Bitton, G. Wastewater Microbiology. Ed. Wiley. New York, 1994.

Speece, H. Anaerobic biotechnology for industrial wastewater. Archae Press. Nashville, 1996.

Tinsley, I. Chemical concepts in pollutant behavior. Ed. Wiley-Interscience. Canadá, 1979.

Field, J. “Medición de Parámetros”. En: Curso: arranque y operación de reactores anaerobios con flujo ascendente y manto de lodos (UASB). Universidad del Valle. Cali, 1987.

El Bayuomy, Mahmoud et al. “Removal of heavy metals and COD by SRB in UAFF reactor”. En: Journal of Environmental Engineering. Vol. 25. N.° 6. Junio, 1999.

Li, B. y Bishop, P. Oxidation-reduction potential (ORP) in regulation of nutrient removal in activated sludge wastewater treatment plants.

Balch, W. et al. “Methanogens: revaluation of a unique biological group”. En: Microbiology Reviews. N.° 43. 1979. pp. 260-296.

Published
2004-11-02
How to Cite
Wills B., & Naranjo F. (2004). Toxic effect evaluation of the lead acetate and chromium chloride on anaerobic bacterial metabolism. Revista Facultad De Ingeniería Universidad De Antioquia, (32), 17-25. Retrieved from https://revistas.udea.edu.co/index.php/ingenieria/article/view/344308