Data/hora: 18/06/2024 04:12:18

Biblioteca(s): 	Embrapa Agrobiologia.	
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