Verifying the applicability of PD/A unit for ultimate sidestream and mainstream polishing: Operating performance, granular characteristics and active microbes

Xiangchen Li,Rui Du,Jingwen Zhang,Chan Chai,Xiyao Li,Qiong Zhang,Shuying Wang,Junfei Qiao,Yongzhen Peng

Chemical Engineering Journal（2023）

引用 2|浏览2

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摘要

•Domestic sewage & PNA-treated reject water are polished to 4.5 mg/L by anoxic PDA.•External COD supply is finally canceled profiting by enhanced sewage utilization.•Clustered anammox bacteria in compact granule strengthen performance and robustness.•Uronic acid and special protein in EPS promote granulation and pollutant adsorption.•Orderly activated Thauera, Brocadia, Competibacter in PDA cycle coordinate N removal.

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关键词

Partial denitrification/anammox,Reject water,Domestic wastewater,Extracellular matrix composition,Clustered anammox bacteria,Active microorganisms

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