Sewage Treatment Effect of Aoa-Sbr Under Different C/P and its Mechanism of Nitrogen and Phosphorus Removal

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Titel: Sewage Treatment Effect of Aoa-Sbr Under Different C/P and its Mechanism of Nitrogen and Phosphorus Removal

Beteiligte: Nie, Zebing [Verfasser:in]; Huo, Mingxin [Verfasser:in]; Li, Qingzhe [Verfasser:in]; Shi, Xueying [Verfasser:in]; Ma, Yunguang [Verfasser:in]; Yu, Ge [Verfasser:in]; Zhu, Suiyi [Verfasser:in]; Ai, Shengshu [Verfasser:in]; Wang, Fan [Verfasser:in]; Bian, Dejun [Verfasser:in]

Erschienen: [S.l.]: SSRN, [2022]

Umfang: 1 Online-Ressource (42 p)

Sprache: Englisch

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Beschreibung: To solve the actual problem of low C/P value caused by the increase of phosphorus content in sewage, the AOA-SBR was used to carry out experiment on the treatment of different C/P value sewage. The results showed that when the influent C/P value was 40, the best sewage treatment effect was achieved, and the average removal rates of COD, NH 4 + -N, TN, and TP were 89.71%, 99.08%, 79.31%, and 99.22%. The difference of TN and TP removal with different influent C/P values were mainly reflected in the post anoxic period. When the influent C/P value was 40, the relative high abundance of genes carrying nas and nap enhanced the DPR during the anoxic period. When the influent C/P value was low, the DPAOs reached the saturation of phosphorus absorption in the aerobic period, thereby inhibiting their DPR ability. While the influent C/P value was 120, because of the lack of orthophosphate, the system could not perform DPR in the anoxic period. Compared with the original sludge, the AOA-SBR operation mode was beneficial to enriching DPAOs and endogenous DNB, and the higher of the influent C/P value, the better the enrichment effect. Meanwhile, the increase of the influent TP concentration simultaneously inhibited the DPAOs and PAOs in AOA-SBR

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