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Engineered iron-sulfur carriers for efficient mixotrophic and sulfur autotrophic denitrification in low carbon to nitrogen ratio municipal wastewater: Mechanisms of biofilm enhancement and electron transfer promotion

Author(s): Yu S; Zhang X; Guo T; Li H; Liu W; Chen Z; Wang X; Ren B; Guo J;

Sulfur autotrophic denitrification (SAD) offers a sustainable solution for nitrogen removal in low carbon to nitrogen ratio (C/N) municipal wastewater, yet its efficiency and startup time pose significant challenges. To overcome these, we developed iron-sulfur-modified carriers (FeS@MC) and integrated them into an in-situ sequencing batch reactor (S-Fe-SB ...

Article GUID: 40712941


Te(IV) bioreduction in the sulfur autotrophic reactor: Performance, kinetics and synergistic mechanism

Author(s): He Y; Guo J; Song Y; Chen Z; Lu C; Han Y; Li H; Hou Y;

A laboratory-scale sulfur autotrophic reactor (SAR) was first constructed for treating tellurite [Te(IV)] wastewater. The SAR had excellent Te(IV) bioreduction efficiency (90-96%) at 5-30 mg/L and conformed to the First-order kinetic model. The Te(IV) bioreduction was elaborated deeply from extracellular polymeric substances (EPS) functions, microbial met ...

Article GUID: 35228038


Acceleration mechanism of bioavailable Fe(Ⅲ) on Te(IV) bioreduction of Shewanella oneidensis MR-1: Promotion of electron generation, electron transfer and energy level.

Author(s): He Y, Guo J, Song Y, Chen Z, Lu C, Han Y, Li H, Hou Y, Zhao R

The release of highly toxic tellurite into the aquatic environment poses significant environmental risks. The acceleration mechanism and tellurium nanorods (TeNPs) characteristics with bioavailable ferric citrate (Fe(III)) were investigated in the tellurite (Te(IV)) bioreduction. Experiments showed that 5?mM Fe(III) increased the Te(IV) bioreduction rate ...

Article GUID: 32853890


Effect of dissolved oxygen on simultaneous removal of ammonia, nitrate and phosphorus via biological aerated filter with sulfur and pyrite as composite fillers.

Author(s): Li Y, Guo J, Li H, Song Y, Chen Z, Lu C, Han Y, Hou Y

Bioresour Technol. 2019 Oct 28;296:122340 Authors: Li Y, Guo J, Li H, Song Y, Chen Z, Lu C, Han Y, Hou Y

Article GUID: 31704601


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