[Improving Nitrogen and Phosphorus Removal from Reclaimed Water Using a Novel Sulfur/Iron Composite Filler].
Huan Jing Ke Xue
; 38(10): 4309-4315, 2017 Oct 08.
Article
em Zh
| MEDLINE
| ID: mdl-29965216
ABSTRACT
In order to improve the ability of denitrification and phosphorus removal from reclaimed water, a novel composite filler was prepared using sulfur powder and sponge iron powder, and a comparative experiment was constructed at different HRT(hydraulic retention time) and C/N(carbon-nitrogen ratio) conditions between the novel filler and the composite filler. The results showed that the efficiency of nitrogen and phosphorus removal on the novel filler was higher than that on the grain filler (more than 30% higher at HRT=4 h and C/N=1). Moreover, based on the 16S rRNA gene clone library, the denitrification system in the two reactors included sulfur autotrophic denitrification bacteria and heterotrophic denitrification bacteria, while the proportion of sulfur autotrophic denitrification bacteria in the novel filler system was higher. The dominant bacteria in the novel filler and composite filler were Sulfurimonas and Acinetobacter, respectively.
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Base de dados:
MEDLINE
Assunto principal:
Fósforo
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Purificação da Água
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Reatores Biológicos
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Desnitrificação
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Nitrogênio
Idioma:
Zh
Ano de publicação:
2017
Tipo de documento:
Article