Application of high rate nitrifying trickling filters to remove low concentrations of ammonia from reclaimed municipal wastewater.
Water Sci Technol
; 61(10): 2425-32, 2010.
Article
em En
| MEDLINE
| ID: mdl-20453314
ABSTRACT
The interference of ammonia with the chlorination process is a problem for many reclaimed water treatment plant operators. This paper presents the findings from a series of pilot experiments that investigated the efficacy of high flow rate nitrifying trickling filters (NTFs) for the removal of low concentrations of ammonia (0.5-3.0 mg N L(-1)) from reclaimed wastewater. Results showed that nitrification was impeded by a combination of high organic carbon loads and aquatic snails, which consumed much of the active biomass. With adequate snail control, nitrification rates (0.3-1.1 g NH(4)-N m(-2) d(-1)) equivalent to that of traditional wastewater NTFs were achieved, despite operating under comparably low ammonia feed concentrations and high hydraulic flow rates.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Eliminação de Resíduos Líquidos
/
Amônia
Limite:
Animals
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article