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Updated: Jun 6, 2025

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
Published on: January 7, 2019
Unlocking the potential differences and effects of the anode and cathode regions on N2O emissions during electric
Huayuan Shangguan1, Chang Shen2, Keren Ding3
1Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, College of Ecology and Resources Engineering, Wuyi University, Wuyishan 354300, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Abstract:
Electric field-assisted aerobic composting (EAC) is a novel strategy for effectively mitigating nitrous oxide (N2O) emissions, but its deeper effects require further exploration. In this study, the differences in N2O emissions between the anode regions (AR) and cathode regions (CR) during EAC were evaluated. The cumulative N2O emission from the compost in CR was 32.77% lower than in AR. Compared to AR, the physicochemical properties of CR contribute to the reduction of N2O emission. PLS-PM analysis suggested that differences in N2O emission are primarily regulated by N-cycling related functional genes and N-containing substances, with different regulatory effects. In AR, functional genes and N-containing substances are significantly positively correlated with N2O emissions, whereas in CR, they are significantly negatively correlated. This study highlights the differences and effects of electrode regions in EAC on N2O emissions, offering new perspectives for future optimization.
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