Determination of oxygen demand in sediments of three stations in the cove of Tumaco
DOI:
https://doi.org/10.26640/22159045.223Keywords:
Oxygen demand, sediment, organic matter, ecosystems, kineticAbstract
This study presents the results of sediment oxygen demand (SOD), measured at three stations in the Cove of Tumaco, exposed to different sources of pollution associated with the activities of each sector. The mathematical formulation used to determine oxygen consumption in the sediment is governed by zero - order kinetics, which al-lows to obtain a biokinetic constant for the SOD, on a determined substrate. The SOD corresponds to the dissolved oxygen demand as a result of the decomposition of organic matter in sediments in an aquatic ecosystem. SOD plays an important role in the exhaustion of dissolved oxygen when performing a balance of oxygen on an aquatic ecosystem. The results obtained were between 0,288 and 0,451mg O2/(m2.día)Downloads
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References
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[12] Casanova Rosero, R.F. Betancourt Portela, J.M. Caracterización y evaluación de la calidad del agua de la Ensenada de Tumaco. Boletín Científico. Centro Control Contaminación del Pacífico. 1997; 6: 45-55.
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[2] Rabouille, C.,; Denis, L.,; Dedieua K.; Stora G.; Lansardc B.; Grenz C. Oxygen demand in coastal marine sediments: comparing in situ microelectrodes and laboratory core incubations. Citado en: Journal of Experimental Marine Biology and Ecology. 2003; 285-286: 49-69.
[3] Grajales, H. Determinación de la demanda de oxígeno de la vegetación sumergida en la zona de represamiento de la quebrada la Vega (Antioquia) Tesis de Maestría en ingeniería ambiental. Universidad de Antioquia- Medellín; 2004.
[4] Chua, H.; Hua, W.F.; Lob, W.; Sina, S.N. Nutrient release and sediment oxygen demand in a eutrophic land-locked embayment in Hong Kong. En: Environment International. 2001;26: 369-375.
[5] Nakamura, Y. Sediment oxygen consumption and vertical flux of organic matter in the Seto Inland Sea, Japan. En: Estuarine, Coastal and Shelf Science. 2003;56: 213–220.
[6] Bowman, G. T. Sediment oxygen demand techniques: a review and comparison of laboratory and in situ systems. Water Research.1980;44:491-9.
[7] Friedman G., M.; Sanders, J. Principles of sedimentary de-posits. Nacmillan publishing company. 1992. p. 231-277.
[8] Hernández, S; Franco, C.; Herrera, C. Carbono orgánico y materia orgánica en sedimentos superficiales de la bahía concepción. Citado en: Ciencia ahora. 2008;11:28-34.
[9] Steeby, J. A. Factors Affecting Sediment Oxygen Demand in Commercial Channel Catfish Ponds. En: Journal of the World Aquaculture Society. 2004; 35:3.
[10] Pesson, P. La contaminación de las aguas continentales: incidencia sobre la biocenosis acuática. Madrid: Ediciones Mundi-Prensa, 1978. p. 5-20.
[11] US. EPA (Environmental Protection Agency). Rates, constants and kinetics formulations in surface water quality modeling. 2 ed. Athenas: EPA, 1985. p.186.
[12] Casanova Rosero, R.F. Betancourt Portela, J.M. Caracterización y evaluación de la calidad del agua de la Ensenada de Tumaco. Boletín Científico. Centro Control Contaminación del Pacífico. 1997; 6: 45-55.
[13] West, E. J.; Welsh, D. T.; Pitt, K. A. Influence of decomposing jellyfish on the sediment oxygen demand and nutrient dynamics. En: Hydrobiologia. 2009. p. 151–160.
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2010-12-05
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How to Cite
Determination of oxygen demand in sediments of three stations in the cove of Tumaco. (2010). CIOH Scientific Bulletin, 28, 248-264. https://doi.org/10.26640/22159045.223
