Modeling Biological Oxygen Demand Load Capacity in a Data-Scarce Basin with Important Anthropogenic Interventions

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datacite.alternateIdentifier.citationWATER,Vol.13,,2021
datacite.alternateIdentifier.doi10.3390/w13172379
datacite.creatorZurita, Alejandra
datacite.creatorAguayo, Mauricio
datacite.creatorArriagada, Pedro
datacite.creatorFigueroa, Ricardo
datacite.creatorDiaz, Maria Elisa
datacite.creatorStehr, Alejandra
datacite.date2021
datacite.subject.englishBiobio river
datacite.subject.englishload capacity
datacite.subject.englishwater quality
datacite.subject.englishQual2K
datacite.titleModeling Biological Oxygen Demand Load Capacity in a Data-Scarce Basin with Important Anthropogenic Interventions
dc.date.accessioned2021-10-04T18:44:48Z
dc.date.available2021-10-04T18:44:48Z
dc.description.abstractMost water bodies are currently used as receptors for pollutants coming mainly from the industrial and domestic sectors. The Biobio river is subjected to multiple anthropogenic pressures such as industrial water supply, drinking water, hydroelectric power generation, agriculture, and the final receptor body of a large amount of industrial and urban waste, pressures that will intensify due to the decrease in water flow as a result of climate change. In this context, organic contamination has been found mainly from sewage discharges and oxidizable waste discharges generated by industrial processes. In this sense, the objective of this research is to determine the Biological Oxygen Demand Loading Capacity (LC) in a basin with a low density of water quality data subjected to strong anthropogenic pressures. To estimate the carrying capacity in a section of the Biobio River, the water quality model River and Stream Water Quality Model- Qual2K version 2.11b8, developed by Chapra, was used. This model solves the Streeter-Phelps equation, proposing an analytical expression to relate the dissolved oxygen (DO) and biochemical oxygen demand (BOD5) variables. These variables were modeled for different critical scenarios of minimum flows in return periods of 5, 50, and 100 years, determining that the studied section of the Biobio river would have a high carrying capacity to not be affected by its organic matter pollution.
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/4235
dc.language.isoen
dc.publisherMDPI
dc.sourceWATER
oaire.resourceTypeArticle
uct.indizacionSCI
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