Pilot study on urban sewage treatment with micro pressure swirl reactor

Zebing Nie; Mingxin Huo; Fan Wang; Shengshu Ai; Xuejian Sun; Suiyi Zhu; Qingzhe Li; Dejun Bian

doi:10.1016/j.biortech.2020.124305

Pilot study on urban sewage treatment with micro pressure swirl reactor

Bioresour Technol. 2021 Jan;320(Pt A):124305. doi: 10.1016/j.biortech.2020.124305. Epub 2020 Oct 22.

Authors

Zebing Nie¹, Mingxin Huo², Fan Wang³, Shengshu Ai⁴, Xuejian Sun³, Suiyi Zhu¹, Qingzhe Li³, Dejun Bian¹

Affiliations

¹ Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun 130117, China; Key Laboratory of Urban Sewage Treatment of Jilin Province, Changchun Institute of Technology, Changchun, 130012 China.
² Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun 130117, China; Key Laboratory of Urban Sewage Treatment of Jilin Province, Changchun Institute of Technology, Changchun, 130012 China. Electronic address: huomx097@nenu.edu.cn.
³ Key Laboratory of Urban Sewage Treatment of Jilin Province, Changchun Institute of Technology, Changchun, 130012 China.
⁴ Key Laboratory of Urban Sewage Treatment of Jilin Province, Changchun Institute of Technology, Changchun, 130012 China; Key Laboratory of Groundwater Resources and Environment, Ministry of Education (Jilin University), Changchun 130021, China.

PMID: 33189044
DOI: 10.1016/j.biortech.2020.124305

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.

Keywords: Dissolved oxygen distribution; Micro-pressure swirl reactor (MPSR); Microbial community; Pilot-scale test; Urban sewage treatment.

MeSH terms

Bioreactors
Denitrification*
Nitrogen
Phosphorus
Pilot Projects
Sewage*
Waste Disposal, Fluid

Substances

Sewage
Phosphorus
Nitrogen