文献类型：期刊文献

英文题名：Model-Based Evaluation of N2O Recovery as an Energy Source in Sulfur-Driven NO-Based Autotrophic Denitrification

作者：Huo, Pengfei[1]; Deng, Ronghua[1]; Chen, Xueming[1]; Liu, Yiwen[2]; Yang, Linyan[3]; Wu, Lan[4]; Wei, Wei[4]; Ni, Bing-Jie[4]

机构：[1] Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, College of Environment and Safety Engineering, Fuzhou University, Fujian, 350116, China; [2] School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China; [3] School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China; [4] Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220343470)

语种：英文

外文关键词：Denitrification - Greenhouse gases - Iron compounds - Nitrogen oxides - Potential energy - Recovery - Substrates

摘要：Instead of the conventional perception of nitrous oxide (N 2 O) as a potent greenhouse gas whose production should be minimized, this work aimed to assess N 2 O recovery as a potential energy source from nitric oxide (NO) in the form of Fe(II)EDTA-NO through element sulfur (S 0 ) or thiosulfate (S 2 O 3 2? )-driven NO-based autotrophic denitrification (SNAD S0 or SNAD S2O3 ). A mathematical model was proposed to describe substrate dynamics related to N 2 O production and reduction and was successfully calibrated and validated using batch experimental data from lab-scale SNAD S0 and SNAD S2O3 systems under different substrates conditions. The model was subsequently employed to assess the potential of N 2 O accumulation and recovery by altering the S/N mass ratio and the ratio of gas volume to liquid volume of the system. The simulation results suggested that with a S/N mass ratio of nearly 1.0, high-purity N 2 O could be more rapidly and efficiently recovered from Fe(II)EDTA-NO in the SNAD S0 and SNAD S2O3 systems with a higher ratio of gas volume to liquid volume (i.e., a N 2 O recovery efficiency of up to 80.2%?84.9% reached within 3.1 h?3.5 h under the studied conditions). Comparatively, the SNAD S0 process showed an economic and viable advantage for practical applications to the efficient treatment and resource utilization of NO-containing flue gas. ? 2022, The Authors. All rights reserved.