Amorphous Fe substrate enhances nitrogen and phosphorus removal in sulfur autotrophic process

Amorphous Fe substrate enhances nitrogen and phosphorus removal in sulfur autotrophic process

•Hydrogel cross-linking creates a 3D network structure for S-Fe particles.•Amorphous Fe substrate can deeply remove N and P simultaneously in SAD.•Iron-rich media promoted Fe circulation and nitrogen removal by enriching FRB.•Clostridium_sensu_stricto_1 and Geobacter were the keystone species of FRB...

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Veröffentlicht in:Water research (Oxford) 2024-06, Vol.256, p.121581-121581, Article 121581
Hauptverfasser: Zhou, Kebing, Zhang, Hao, Guo, Dong, Gao, Shuocheng, Pei, Yuansheng, Hou, Li'an
Format: Artikel
Sprache:eng
Schlagworte:
Amorphous Fe
Iron cycle
Iron-rich sludge
Nitrogen and phosphorus removal
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Zusammenfassung:•Hydrogel cross-linking creates a 3D network structure for S-Fe particles.•Amorphous Fe substrate can deeply remove N and P simultaneously in SAD.•Iron-rich media promoted Fe circulation and nitrogen removal by enriching FRB.•Clostridium_sensu_stricto_1 and Geobacter were the keystone species of FRB.•The low effluent pH (
ISSN:0043-1354
1879-2448
DOI:10.1016/j.watres.2024.121581