Resourceful application and mechanism of oyster shell-microalgae synergistic systemï¼Sustainable treatment of harsh low carbon nitrogen ratio actual wastewater.
Environ Res
; 252(Pt 1): 118775, 2024 Jul 01.
Article
em En
| MEDLINE
| ID: mdl-38548250
ABSTRACT
Microalgal technology holds great promise for both low C/N wastewater treatment and resource recovery simultaneously. Nevertheless, the advancement of microalgal technology is hindered by its reduced nitrogen removal efficiency in low C/N ratio wastewater. In this work, microalgae and waste oyster shells were combined to achieve a total inorganic nitrogen removal efficiency of 93.85% at a rate of 2.05 mg L-1 h-1 in low C/N wastewater. Notably, over four cycles of oyster shell reuse, the reactor achieved an average 85% ammonia nitrogen removal extent, with a wastewater treatment cost of only $0.092/ton. Moreover, microbial community analysis during the reuse of oyster shells revealed the critical importance of timely replacement in inhibiting the growth of non-functional bacteria (Poterioochromonas_malhamensi). The work demonstrated that the oyster shell - microalgae system provides a time- and cost-saving, environmental approach for the resourceful treatment of harsh low C/N wastewater.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ostreidae
/
Carbono
/
Eliminação de Resíduos Líquidos
/
Microalgas
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Exoesqueleto
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Águas Residuárias
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Nitrogênio
Limite:
Animals
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article