Carbon-neutral treatment of N, N-dimethylformamide-containing industrial wastewater by anaerobic membrane bioreactor (AnMBR): Bio-energy recovery and CO2 emission reduction

Zhe Kong; Yi Xue; Tianwei Hao; Yanlong Zhang; Jiang Wu; Hong Chen; Liuying Song; Chao Rong; Dapeng Li; Yang Pan; Yong Li; Yu-You Li

doi:10.1016/j.biortech.2022.127396

Carbon-neutral treatment of N, N-dimethylformamide-containing industrial wastewater by anaerobic membrane bioreactor (AnMBR): Bio-energy recovery and CO₂ emission reduction

Bioresour Technol. 2022 Aug:358:127396. doi: 10.1016/j.biortech.2022.127396. Epub 2022 May 28.

Authors

Zhe Kong¹, Yi Xue², Tianwei Hao³, Yanlong Zhang⁴, Jiang Wu⁵, Hong Chen⁶, Liuying Song⁷, Chao Rong², Dapeng Li⁸, Yang Pan⁸, Yong Li⁸, Yu-You Li⁹

Affiliations

¹ School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, Suzhou University of Science and Technology, Suzhou 215009, China; Jiangsu Collaborative Innovation Center of Water Treatment Technology and Material, Suzhou University of Science and Technology, Suzhou 215009, China; 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: zhekong@mail.usts.edu.cn.
² Graduate School of Environmental Studies, Tohoku University, 6-6-06 Aza-Aoba, Aramaki, Aoba Ward, Sendai, Miyagi 980-8579, Japan.
³ Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau.
⁴ College of the Environment & Ecology, Xiamen University, South Xiang'an Road, Xiang'an District, Xiamen, Fujian 361102, China.
⁵ 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; Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Tsukuba 305-8506, Japan.
⁶ Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China.
⁷ 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.
⁸ School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, Suzhou University of Science and Technology, Suzhou 215009, China; Jiangsu Collaborative Innovation Center of Water Treatment Technology and Material, Suzhou University of Science and Technology, Suzhou 215009, China.
⁹ 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; Graduate School of Environmental Studies, Tohoku University, 6-6-06 Aza-Aoba, Aramaki, Aoba Ward, Sendai, Miyagi 980-8579, Japan. Electronic address: gyokuyu.ri.a5@tohoku.ac.jp.

PMID: 35640814
DOI: 10.1016/j.biortech.2022.127396

Abstract

High-strength industrial wastewater containing approximately 2000 mg/L of N, N-dimethylformamide (DMF) was treated by the anaerobic membrane bioreactor (AnMBR) during a long-term operation with the concept of carbon neutrality in this study. Bio-methane was recovered as bio-energy or bio-resource from DMF-containing wastewater along with the CO₂ emission reduction. The results are clear evidence of the feasibility of carbon-neutral treatment of DMF-containing wastewater by the AnMBR. With an effective degradation under the organic loading rate of 6.53 COD kg/m³/d at the HRT of 12 h, the AnMBR completely covered the energy consumption during long-term operation by saving electricity of 4.16 kWh/m³ compared with the conventional activated sludge process. The CO₂ emission of the AnMBR was just 1.06 kg/m³, remarkably reducing 1.45 kg/m³ of CO₂. The treatment of DMF-containing wastewater by the AnMBR perfectly realized the goal of carbon neutrality, and was considered as an alternative to the conventional activated sludge process.

Keywords: AnMBR; Anaerobic digestion; Bio-energy recovery; Carbon neutrality; Industrial wastewater; N, N-dimethylformamide.

MeSH terms

Anaerobiosis
Bioreactors
Carbon
Carbon Dioxide
Dimethylformamide* / metabolism
Membranes, Artificial
Methane
Sewage
Waste Disposal, Fluid / methods
Wastewater* / analysis

Substances

Membranes, Artificial
Sewage
Waste Water
Carbon Dioxide
Carbon
Dimethylformamide
Methane