title: [Mathematical modeling to assess the effects of organic waste dumping on sanitary conditions of environmental waters].
abstract: This article provides an overview of emerging trends in environmental approaches to wastewater management in the developing world. Organic matter present in wastewater is one of the main sources of water pollution. In large amounts it can increase the number of microorganisms and thus the excessive consumption of dissolved oxygen in the metabolic processes of its utilization and stabilization, leading to the disappearance and extinction of aerobic organisms, favoring the appearance of other life forms in anaerobic conditions, often producing toxic residues. The main focus of this article is to analyze the presence of organic matter in urban sewage using a water quality model whose main parameters are dissolved oxygen and biochemical oxygen demand. Wastewater management methodologies can contribute to public health, sanitation, and improved conservation of water resources.
authors.affiliation: Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil. cynara@ensp.fiocruz.br
authors.forename: Cynara de Lourdes da Nóbrega
authors.initials: Cde L
authors.lastname: Cunha
authors.forename: Aldo Pacheco
authors.initials: AP
authors.lastname: Ferreira
mesh_terms: D004784:Environmental Monitoring; D005618:Fresh Water / Q000032:analysis* / Q000737:chemistry; D006801:Humans; D008962:Models, Theoretical; D014504:Urban Health; D014865:Waste Disposal, Fluid / Q000379:methods* / Q000592:standards; D014873:Water Pollutants / Q000378:metabolism*
chemical_list: D014873:Water Pollutants