Treatment of industrial wastewaters by microalgal bacterial flocs in sequencing batch reactors.
Bioresour Technol
; 161: 245-54, 2014 Jun.
Article
em En
| MEDLINE
| ID: mdl-24709538
ABSTRACT
Microalgal bacterial flocs in sequencing batch reactors (MaB-floc SBRs) represent a novel approach to wastewater treatment. In this approach, mechanical aeration is replaced by photosynthetic aeration and MaB-floc settling separates the treated wastewater from the produced biomass. However, its technical potential for industrial wastewaters needs to be shown. Therefore, wastewaters of aquaculture, manure treatment, food-processing and chemical industry were treated in MaB-floc SBRs. This treatment resulted in significantly different nutrient removal rates and effluent qualities among wastewaters. A high MaB-floc production was obtained for all wastewaters, ranging from 0.14 to 0.26g total suspended solids Lreactor(-1)day(-1). A major advantage of MaB-flocs is the harvesting via a filter press with a large pore size of 200µm, resulting in MaB-floc recoveries of 79-99% and cakes containing 12-21% dry matter. These results may contribute to evolving MaB-floc SBRs as a valuable remediation strategy, especially for aquaculture and food-processing wastewaters.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Eliminação de Resíduos Líquidos
/
Purificação da Água
/
Reatores Biológicos
/
Microalgas
Tipo de estudo:
Evaluation_studies
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article