Seasonal temperatures impact on the mass flows in the innovative integrated process of anaerobic membrane bioreactor and one-stage partial nitritation-anammox for the treatment of municipal wastewater

Chao Rong; Tianjie Wang; Zibin Luo; Yan Guo; Zhe Kong; Jiang Wu; Yu Qin; Taira Hanaoka; Shinichi Sakemi; Masami Ito; Shigeki Kobayashi; Masumi Kobayashi; Yu-You Li

doi:10.1016/j.biortech.2022.126864

Seasonal temperatures impact on the mass flows in the innovative integrated process of anaerobic membrane bioreactor and one-stage partial nitritation-anammox for the treatment of municipal wastewater

Bioresour Technol. 2022 Apr:349:126864. doi: 10.1016/j.biortech.2022.126864. Epub 2022 Feb 17.

Authors

Chao Rong¹, Tianjie Wang², Zibin Luo², Yan Guo³, Zhe Kong⁴, Jiang Wu⁵, Yu Qin², Taira Hanaoka⁶, Shinichi Sakemi⁶, Masami Ito⁷, Shigeki Kobayashi⁷, Masumi Kobayashi⁸, Yu-You Li⁹

Affiliations

¹ Department of Frontier Sciences for Advanced Environment, Graduate School of Environmental Studies, Tohoku University, 6-6-06 Aza-Aoba, Aramaki, Aoba Ward, Sendai, Miyagi 980-8579, Japan.
² Laboratory of Environmental Protection Engineering, Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aza-Aoba, Aramaki, Aoba Ward, Sendai, Miyagi 980-8579, Japan.
³ Department of Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China.
⁴ School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China.
⁵ Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Tsukuba 305-8506, Japan.
⁶ Solution Engineering Group, Environmental Engineering Department, Mitsubishi Kakoki Kaisha, Ltd., 1-2 Miyamae-Cho, Kawasaki-Ku, Kawasaki, Kanagawa 210-0012, Japan.
⁷ Global Water Recycling and Reuse System Association, Japan, 5-1, Soto-Kanda 1-Chome, Chiyoda-Ku, Tokyo 101-0021, Japan.
⁸ Separation and Aqua Chemicals Department, Mitsubishi Chemical Corporation, Gate City Osaki East Tower, 11-2 Osaki 1-chome, Shinagawa-Ku, Tokyo 141-0032, Japan.
⁹ Department of Frontier Sciences for Advanced Environment, Graduate School of Environmental Studies, Tohoku University, 6-6-06 Aza-Aoba, Aramaki, Aoba Ward, Sendai, Miyagi 980-8579, Japan; Laboratory of Environmental Protection Engineering, Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aza-Aoba, Aramaki, Aoba Ward, Sendai, Miyagi 980-8579, Japan. Electronic address: gyokuyu.ri.a5@tohoku.ac.jp.

PMID: 35183723
DOI: 10.1016/j.biortech.2022.126864

Abstract

A pilot-scale anaerobic membrane bioreactor (AnMBR) integrated with a one-stage partial nitritation-anammox (PN/A) reactor was operated for the treatment of municipal wastewater (MWW) at seasonal temperatures of 15-25 °C. The removal efficiencies of COD and total nitrogen (TN) were always > 90% and > 75% respectively. The methanogenesis and PN/A were identified as the primary removal pathways of COD and TN, respectively, and were suppressed at low temperatures. With the temperature dropped from 25 °C to 20 °C to 15 °C, the methane-accounted COD decreased from 63.1% to 59.6% to 48.4%, and the PN/A-accounted TN decreased from 58.1% to 51.7% to 45.3%. The AnMBR and PN/A mutually complement each other in this combined process, as the AnMBR removed 8.5%-16.1% of TN by sludge entrainment and the PN/A reactor removed 2.6%-3.4% of COD by denitrification and aerobic oxidation. These results highlighted the strong feasibility of applying the AnMBR-PN/A process to the treatment of MWW in temperate climate.

Keywords: Anaerobic membrane bioreactor; Mass flow; Municipal wastewater; Partial nitritation-anammox; Seasonal temperature.

MeSH terms

Ammonium Compounds* / metabolism
Anaerobic Ammonia Oxidation
Anaerobiosis
Bioreactors
Denitrification
Nitrogen
Oxidation-Reduction
Seasons
Sewage
Temperature
Wastewater*

Substances

Ammonium Compounds
Sewage
Waste Water
Nitrogen