Data/hora: 23/06/2024 00:59:34

Biblioteca(s): | Embrapa Agrobiologia.
Tipo da produção científica: | Artigo em Periódico Indexado
Data corrente: | 16/12/2022
Data da última atualização: | 12/07/2023
Autoria: | JORGE, M. F.; SILVA, L. D. B. da; SILVA, J. B. G.; ALVES, D. G.; HÜTHER, C. M.; CECCHIN, D.; GUERRA, J. G. M.; SANTOS, L. M. M.; FRANCISCO, J. P.; MELO, A. C. F. de; NASCENTES, A. L.; CALLETI, R. P. K.
Afiliação: | MARCOS FILGUEIRAS JORGE, UFRRJ; LEONARDO DUARTE BATISTA DA SILVA, UFRRJ; JONATHAS BATISTA GONÇALVES SILVA, UNIVERSIDADE FEDERAL DE JUIZ DE FORA; DINARA GRASIELA ALVES, UFRRJ; CRISTINA MOLL HÜTHER, UFF; DAIANE CECCHIN, UFF; JOSE GUILHERME MARINHO GUERRA, CNPAB; LUISE MARIA MARTINS SANTOS, UFRRJ; JOÃO PAULO FRANCISCO, UEM; ANTONIO CARLOS FARIAS DE MELO, UFRRJ; ALEXANDRE LIOI NASCENTES, UFRRJ; ROZILENI PIONT KOVSKY CALETTI, UNIVERSIDADE ESTADUAL DE MARINGÁ.
Título: | Biological pilot treatment reduces physicochemical and microbiological parameters of dairy cattle wastewater
Ano de publicação: | 2023
Fonte/Imprenta: | Environmental Science and Pollution Research, v. 30, n.1 2, p. 34775-34792, 2023.
DOI: | https://doi.org/10.1007/s11356-022-24681-3
Idioma: | Inglês
Conteúdo: | The objectives of the present study were to characterize and evaluate a pilot treatment unit (PTU) for dairy cattle wastewater (DCW) in relation to its efficiency in reducing the physicochemical and microbiological parameters and possible application of this fertilizer in organic production. A PTU was set up, composed of the following elements: a dung pit of 7.8 m 3 , already in place; a septic tank; a set of anaerobic biological filters comprising an upflow filter and a downward-flow filter filled with fragments PVC corrugated conduit; and two constructed wetland systems (CWSs) of horizontal subsurface flow in two par- allel routes (Routes 1 and 2), controlled by means of a flow rate divider box. Route 1 passed through CWS 1 cultivated with cattail (Typha domingensis) and Route 2 passed through CWS 2 cultivated with vetiver grass (Chrysopogon zizanioides). To evaluate the treatment stages, biweekly investigations were carried out to collect effluent samples. The results of moni- toring, in absolute values, were evaluated by means of the medians and variation coefficients and compared by means of Kruskal?Wallis non-parametric test followed by the Student Newman Keuls test. The treatment efficiencies of Routes 1 and 2 were calculated. The influence of vetiver on the removal of nutrients from the DCW was analyzed and the productivity estimate (t.ha ?1 ) was performed. CWS 1 was not able to reduce the organic load indices, but it was able to retain fatty mate- rial and sodium. CWS 2 showed a reduction in nitrogenous forms and also for other nutrients, achieving the greatest removal of sodium and greatest decay of fecal contamination indicators, thermotolerant coliforms (56.13%), and E. coli (46.82%)
Palavras-Chave: | Constructed wetland; Microbiological parameters; Nutrient extraction; Pilot treatment unit; Removal of contaminants.
Thesaurus Nal: | Agricultural wastes.
Categoria do assunto: | S Ciências Biológicas
Registro original: | Embrapa Agrobiologia (CNPAB)
Exemplares: | CNPAB - (42118-1) - UPC - AP - DD -  -  -  - DIS