title: Poultry slaughterhouse wastewater treatment plant for high quality effluent.
abstract: This paper assesses a wastewater treatment plant (WWTP) regarding the technology used, as well as organic matter and nutrient removal efficiencies aiming to optimize the treatment processes involved and wastewater reclamation. The WWTP consists of a dissolved air flotation (DAF) system, an upflow anaerobic sludge blanket (UASB) reactor, an aerated-facultative pond (AFP) and a chemical-DAF system. The removal efficiencies of chemical oxygen demand (COD) (97.9 ± 1.0%), biochemical oxygen demand (BOD) (98.6 ± 1.0%) and oil and grease (O&G) (91.1 ± 5.2%) at the WWTP, the nitrogen concentration of 17 ± 11 mg N-NH3 and phosphorus concentration of 1.34 ± 0.93 mg PO4(-3)/L in the final effluent indicate that the processes used are suitable to comply with discharge standards in water bodies. Nitrification and denitrification tests conducted using biomass collected at three AFP points indicated that nitrification and denitrification could take place in the pond.
authors.affiliation: Departamento de Hidráulica e Saneamento-EESC-Universidade de São Paulo, Av. Trabalhador São-carlense, 400, São Carlos, SP 13566-590, Brazil E-mail: vdelnery@terra.com.br.
authors.forename: V
authors.initials: V
authors.lastname: Del Nery
authors.affiliation: Departamento de Hidráulica e Saneamento-EESC-Universidade de São Paulo, Av. Trabalhador São-carlense, 400, São Carlos, SP 13566-590, Brazil E-mail: vdelnery@terra.com.br.
authors.forename: M H Z
authors.initials: MH
authors.lastname: Damianovic
authors.affiliation: Universidade Federal de Alfenas, BR 267 Km 533, Rodovia José Aurélio Vilela, n° 11.999, Poços de Caldas, MG 37715-400, Brazil.
authors.forename: R B
authors.initials: RB
authors.lastname: Moura
authors.affiliation: Departamento de Hidráulica e Saneamento-EESC-Universidade de São Paulo, Av. Trabalhador São-carlense, 400, São Carlos, SP 13566-590, Brazil E-mail: vdelnery@terra.com.br.
authors.forename: E
authors.initials: E
authors.lastname: Pozzi
authors.affiliation: Departamento de Hidráulica e Saneamento-EESC-Universidade de São Paulo, Av. Trabalhador São-carlense, 400, São Carlos, SP 13566-590, Brazil E-mail: vdelnery@terra.com.br.
authors.forename: E C
authors.initials: EC
authors.lastname: Pires
authors.affiliation: Departamento de Hidráulica e Saneamento-EESC-Universidade de São Paulo, Av. Trabalhador São-carlense, 400, São Carlos, SP 13566-590, Brazil E-mail: vdelnery@terra.com.br.
authors.forename: E
authors.initials: E
authors.lastname: Foresti
mesh_terms: D000003:Abattoirs; D000818:Animals; D057919:Biological Oxygen Demand Analysis; D018533:Biomass; D019149:Bioreactors; D058440:Denitrification; D058465:Nitrification; D010758:Phosphorus / Q000032:analysis; D061005:Ponds; D011200:Poultry; D012722:Sewage; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater
chemical_list: D010758:Phosphorus; D012722:Sewage; D062065:Wastewater