title: Photodegradation applied to the treatment of phenol and derived substances catalyzed by TiO2/BiPO4and biological toxicity analysis.
abstract: For this work, a phenol solution model was treated by an advanced oxidation process (AOPs), using the heterogeneous catalyst TiO2/BiPO4and hydrogen peroxide combined with UVA for 240 min. An annular reactor containing a UVA lamp (80 W) was employed. A central composite rotacional design was developed employing a TiO2/BiPO4concentration of 87 mg L-1and a hydrogen peroxide concentration of 1800 mg L-1, being evaluated by the degradation percentage and phenol mineralization percentage as responses; 94.30 and 67.00 % were obtained for the phenol degradation and total organic carbon (TOC) conversion, respectively. The lumped kinetic model (LKM) was applied and a satisfactory profile of the residual fractions of the organic compounds present in the liquid phase as a time function with a determination coefficient (R2= 0.9945). The toxicity tests employing microbiological species indicated that the organisms tested for the evaluation of the toxic compounds present in the contaminated samples presented a practical low cost test, rapid execution, and high sensibility as an indicator of the presence of toxic substances in liquid effluents.
authors.affiliation: Department of Chemical Engineering, University Federal of Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade, Universitária, Recife, 50740-521, Brazil. leazaidan@yahoo.com.br.
authors.forename: Léa Elias Mendes Carneiro
authors.initials: LEMC
authors.lastname: Zaidan
authors.affiliation: Department of Chemical Engineering, University Federal of Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade, Universitária, Recife, 50740-521, Brazil.
authors.forename: Renata Vitória
authors.initials: RV
authors.lastname: de Lima Sales
authors.affiliation: Department of Chemical Engineering, University Federal of Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade, Universitária, Recife, 50740-521, Brazil.
authors.forename: Júlia Barbosa
authors.initials: JB
authors.lastname: de Almeida Salgado
authors.affiliation: Department of Chemical Engineering, University Federal of Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade, Universitária, Recife, 50740-521, Brazil.
authors.forename: Ana Maria Ribeiro Bastos
authors.initials: AMRB
authors.lastname: da Silva
authors.affiliation: Department of Chemical Engineering, University Federal of Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade, Universitária, Recife, 50740-521, Brazil.
authors.forename: Daniella Carla
authors.initials: DC
authors.lastname: Napoleão
authors.affiliation: Department of Chemical Engineering, University Federal of Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade, Universitária, Recife, 50740-521, Brazil.|Instituto de Investigación, Universidad Técnica de Manabí, Av. Urbina y Che Guevara, Portoviejo, Manabí, Ecuador.
authors.forename: Joan Manuel
authors.initials: JM
authors.lastname: Rodríguez-Díaz
authors.affiliation: Department of Chemical Engineering, University Federal of Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade, Universitária, Recife, 50740-521, Brazil.
authors.forename: Olga Martins
authors.initials: OM
authors.lastname: Marques
authors.affiliation: Department of Chemical Engineering, University Federal of Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade, Universitária, Recife, 50740-521, Brazil.
authors.forename: Mohand
authors.initials: M
authors.lastname: Benachour
authors.affiliation: Department of Chemical Engineering, University Federal of Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade, Universitária, Recife, 50740-521, Brazil.
authors.forename: Valdinete Lins
authors.initials: VL
authors.lastname: da Silva
mesh_terms: D001729:Bismuth / Q000737:chemistry / Q000633:toxicity; D019800:Phenol / Q000032:analysis / Q000737:chemistry; D010782:Photolysis; D014025:Titanium / Q000737:chemistry / Q000633:toxicity; D014873:Water Pollutants / Q000032:analysis / Q000737:chemistry; D018508:Water Purification
chemical_list: D014873:Water Pollutants; C009495:titanium dioxide; D019800:Phenol; D014025:Titanium; D001729:Bismuth; C035883:bismuth phosphate
keywords: AOPs; Annular reactor; Heterogeneous photocatalysis; Liquid effluents; Phenol