Pilot study on urban sewage treatment with micro pressure swirl reactor. Issue 6 (January 2021)

• Record Type: Journal Article
• Authors: Nie, Zebing; Huo, Mingxin; Wang, Fan; Ai, Shengshu; Sun, Xuejian; Zhu, Suiyi; Li, Qingzhe; Bian, Dejun
• Is Part Of: Bioscience reports. Volume 30:Issue 6(2010)
• Publication Date: 2021-01
• Subjects: Micro-pressure swirl reactor (MPSR) -- Urban sewage treatment -- Pilot-scale test -- Microbial community -- Dissolved oxygen distribution; Molecular biology -- Periodicals; Cytology -- Periodicals; 572.8
• DOI: 10.1016/j.biortech.2020.124305
• Languages: English
• ISSNs: 0144-8463

Abstract

Highlights: MPSR realized the coexistence of different DO environments in a single aeration tank. MPSR could achieve efficient and stable removal of SS, COD, NH4 + -N, TN, and TP. The relatively high abundance of denitrification flora ensured the denitrification effect of MPSR process. Abstract: This study aimed to propose a new type of micro-pressure swirl reactor (MPSR) to treat urban sewage. The MPSR could form a stable swirl in the reactor, and realized the coexistence of anaerobic, anoxic, and aerobic zones in a single aeration tank. The pilot study showed that MPSR achieved high removal efficient of SS, COD, NH4 + -N, TN, TP under the conditions of drastic fluctuation in influent quality and temperature, and the average removal rate were 88.58%, 93.32%, 94.47%, 73.19%, 96.16%. The relative high abundance of Thermomonas, Thaurea, and Dechloromonas, etc, guaranteed the denitrification efficiency of the MPSR, and Dechloromonas was the main phosphorus removal bacteria in the system. The study confirmed the rationality of the structural design of the MPSR, and it was excellent in sewage treatment and stability.