Fe-BTC增强硫化物抑制下厌氧氨氧化脱氮效能与机制

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中图分类号：X703 文献标志码：A

Abstract： The effect of mitigating S2- inhibition in anammox process was investigated on the basis of the preparation and structural characterization of Fe-BTC. The results demonstrate that 150mg/L sulfide significantly inhibits the anammox system， leading to a 48.82% reduction in total nitrogen removal effciency. Fe-BTC exhibits a promising ability to alleviate sulfide inhibition in the anammox process. When the dosage is 1g/L ，the ammonium removal eficiency is increased by 32.9% ， and the ammonium removal rate is enhanced by 1.75 times，achieving a fTNRE of 80.69% ，which is 1. 18 times higherthanthatofthecontrol group.TheadditionofFe-BTCacelerates theremovalof sulfidethrough chemicalreactions， thereby reducing the duration of S2- inhibition.Additionally，the content of EPS increases，with PN rising by 15.8% and PS by 14.2% . The cytochrome c content is increased by 38.80% . The increase of system capacitance and exchange current density ehances theelectrochemical characteristics of thereaction system，reduces theelectron transferresistanceof thereaction process，and improves the metabolic activity of anammox bacteria.

Keywords：anammox；Fe-BTC；denitrification;electron transfer

废水众多脱氮技术中厌氧氨氧化（Anammox） 水处理领域备受青睐[1]。（剩余19082字）