A novel algal biofilm membrane photobioreactor for attached microalgae growth and nutrients removal from secondary effluent.
Bioresour Technol
; 179: 8-12, 2015 Mar.
Article
em En
| MEDLINE
| ID: mdl-25514396
ABSTRACT
In this study, a novel algal biofilm membrane photobioreactor (BMPBR) equipped with solid carriers and submerged membrane module was developed for attached growth of Chlorella vulgaris and secondary effluent treatment. The volumetric microalgae production achieved in BMPBR was 0.072 g L(-1) d(-1), which was 1.44-fold larger than that in suspended growth membrane photobioreactor (MPBR). Furthermore, 72.4% of the total produced algal biomass was immobilized as algal biofilm in BMPBR. Advanced nutrients removal from secondary effluent was achieved both in BMPBR and MPBR, with average reduction of about 85% for PO4(3-)-P in the stable stage. Additionally, BMPBR showed better nitrogen removal performance than MPBR due to its higher algal biomass productivity. Moreover, with the filtration effect of the submerged membrane module in the reactor, suspended microalgae could be completely isolated from the effluent and a low average SS concentration of 0.28 mg L(-1) was achieved in the effluent of BMPBR.
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Base de dados:
MEDLINE
Assunto principal:
Fósforo
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Eliminação de Resíduos Líquidos
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Purificação da Água
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Biofilmes
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Microalgas
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Fotobiorreatores
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Membranas Artificiais
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Nitrogênio
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article