| Texto completo | |
| Autor(es): |
James, Abraham O.
;
Bankole, Abayomi O.
;
Pompei, Caroline M. E.
;
Dantas, Gustavo A. S. A.
;
Ruas, Graziele
;
Silva, Gustavo H. R.
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYCOLOGY; v. 3, n. 4, p. 19-pg., 2023-12-01. |
| Resumo | |
Increasing the volume of untreated and inadequately treated municipal wastewater undermines the circular economy potential of wastewater resources, particularly in low-income regions. This present study focused on and evaluated the performance of native microalgae-activated sludge (MAS) growth for tertiary treatment of anaerobically digested wastewater from an up-flow anaerobic sludge blanket (UASB) in an outdoor lab-scale photobioreactor (2.2 L). Three conditions with distinct MAS inoculum concentrations alongside three controls were operated in batch mode for 5 days hydraulic retention time (HRT) at 11.5:12.5 photo-hours. The MAS inoculum concentration influenced the treatment outcome. The best performance was observed when the MAS concentration was 0.10/0.20 g L-1, and the cell density was 1.60 x 10(7 )cells mL(-1), total biomass productivity of 0.10 g TSS L(-1)d(-1), total phosphorus uptake of 85.1%, and total nitrogen uptake of 66.1%. Logarithmic removal (Log-Re) of bacterial pathogens (water quality indicators) showed Log-Re 3.4 for total coliforms (1.37 x 10(2) CFU 100 mL(-1)) and 4.7 for Escherichia coli (0.00 x 100 CFU 100 mL(-1)). The results revealed optimum remediation performance and nutrient recovery potential with appropriate inoculum concentration, in admiration to advancing the science of circular economy. (AU) | |
| Processo FAPESP: | 18/18367-1 - Microalgas como solução para recuperação de nutrientes provenientes de esgoto sanitário de alta carga |
| Beneficiário: | Gustavo Henrique Ribeiro da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 22/07475-3 - Consórcio microalgas-bactérias: estratégia sustentável para produção de energia renovável e tratamento terciário do esgoto sanitário |
| Beneficiário: | Gustavo Henrique Ribeiro da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |