Influence of the carbon source concentration on the nitrate removal rate in groundwater.
Environ Technol
; 43(22): 3355-3365, 2022 Sep.
Article
en En
| MEDLINE
| ID: mdl-33886439
ABSTRACT
At present, groundwater nitrate pollution in China is serious. The use of microorganisms for biological denitrification has been widely applied, and it is a universal and efficient in situ groundwater remediation technique, but this approach is influenced by many factors. In this study, glucose was adopted as the carbon source, four different concentrations of 0, 2, 5 and 10â
g/L were considered, and natural groundwater with a nitrate concentration of 300.8â
mg/L was employed as the experimental solution. The effect of the carbon source concentration on the nitrate removal rate in groundwater was examined through heterotrophic anaerobic denitrification experiments. The results showed that the nitrate removal rate could be improved by the addition of an external carbon source in the process of biological denitrification, and an optimal concentration was observed. At a glucose concentration of 2â
g/L, the denitrification effect was the best.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Contaminantes Químicos del Agua
/
Agua Subterránea
Idioma:
En
Revista:
Environ Technol
Asunto de la revista:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Año:
2022
Tipo del documento:
Article