Evaluation of high rate ponds operational and design strategies for algal biomass production and domestic wastewater treatment

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorCouto, Eduardo-
Autor(es): dc.creatorCalijuri, Maria Lúcia-
Autor(es): dc.creatorAssemany, Paula-
Autor(es): dc.creatorCecon, Paulo Roberto-
Data de aceite: dc.date.accessioned2026-02-09T11:32:31Z-
Data de disponibilização: dc.date.available2026-02-09T11:32:31Z-
Data de envio: dc.date.issued2022-06-01-
Data de envio: dc.date.issued2022-06-01-
Data de envio: dc.date.issued2021-10-15-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/50086-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.scitotenv.2021.148362-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1142134-
Descrição: dc.descriptionThis study evaluated the effect of high rate ponds (HRPs) depth on algal biomass production during domestic wastewater treatment. HRPs were evaluated for 20, 30, and 40 cm depths, with and without CO2 supplementation. In addition, 40 cm deep HRP with ultraviolet (UV) pre-disinfection was evaluated. The concentration of chlorophyll-a as a function of time for each evaluated condition was represented by logistic models that were after submitted to cluster analysis. The 20 cm HRPs presented higher chlorophyll-a concentration, reaching a maximum of 5.8 and 4.3 mg L−1, in the HRPs with and without CO2 addition, respectively. Ammonia nitrogen and soluble phosphorus were greater removed in shallower HRPs. The addition of CO2 influenced the nutrient removal processes, optimizing nutrient recovery by biomass assimilation. HRP configuration did not influence organic matter removal (~40% of removal efficiency in all HRPs), predominant microalgae genera (Chlorella sp. and Scenedesmus), and E. coli inactivation (removal of ~2 log units), except for the 20 cm HRP without CO2 that had removal of 4 log units due to high pH values. For HRPs with CO2 addition and UV pre-disinfection, the models for 40 cm were grouped together with those obtained for 30 cm HRPs, indicating the same behavior for chlorophyll-a production as a function of time. Thus, it can be concluded that the evaluated strategies represent alternatives for reducing HRP area requirements. Moreover, results may represent advancement and major contributions for HRP design criteria.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceScience of The Total Environment-
Palavras-chave: dc.subjectOpen algae ponds-
Palavras-chave: dc.subjectCO2 supplementation-
Palavras-chave: dc.subjectUV pre-disinfection-
Palavras-chave: dc.subjectDomestic sewage-
Palavras-chave: dc.subjectAlgal biomass-
Palavras-chave: dc.subjectLagos abertos de algas-
Palavras-chave: dc.subjectSuplementação de CO2-
Palavras-chave: dc.subjectPré-desinfecção UV-
Palavras-chave: dc.subjectEsgoto doméstico-
Palavras-chave: dc.subjectEsgoto doméstico-
Título: dc.titleEvaluation of high rate ponds operational and design strategies for algal biomass production and domestic wastewater treatment-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

Não existem arquivos associados a este item.