Developing a simple activity test to estimate nitrous oxide production from sewage treatment

IF 2.9 4区生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Journal of bioscience and bioengineering Pub Date : 2025-04-11 DOI:10.1016/j.jbiosc.2025.03.003

Shuhei Masuda , Shohei Otomo , Toshimasa Hojo , Akihiko Terada , Hiroshi Yamazaki , Juhyun Kim , Yu-You Li , Fumiaki Takakai , Naoyuki Miyata

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Abstract

Developing an easy and precise method to estimate nitrous oxide (N₂O) emissions from sewage treatment plants (STPs) is important for controlling greenhouse gas emissions. This study aimed to develop a simple N₂O activity test to estimate the N₂O profile in an STP. In addition to evaluating the stability of the developed test, the dissolved oxygen was measured in a gas-stripping-type N₂O activity test to determine the experimental conditions under which N₂O production could be estimated. When the developed method was applied in different STPs and compared with the actual generation quantity, the N₂O production activity test demonstrated potential as a simple method for estimating the net N₂O generation in the STP. Therefore, this study potentially provides an easy and effective method for quantifying N₂O emissions from an STP.

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开发一种简单的活性测试来估计污水处理产生的氧化亚氮。

开发一种简便、精确的方法来估算污水处理厂的氧化亚氮（N2O）排放量，对于控制温室气体排放具有重要意义。本研究旨在开发一种简单的N2O活性测试，以估计STP中N2O的分布。除了评估开发测试的稳定性外，还在气提型N2O活性测试中测量了溶解氧，以确定可以估计N2O产量的实验条件。当所开发的方法应用于不同的STP并与实际发电量进行比较时，N2O生产活性测试显示出作为估算STP净N2O发电量的简单方法的潜力。因此，本研究可能提供一种简单有效的方法来量化STP的N2O排放量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of bioscience and bioengineering 生物-生物工程与应用微生物

CiteScore

5.90

自引率

3.60%

发文量

144

审稿时长

51 days

期刊介绍： The Journal of Bioscience and Bioengineering is a research journal publishing original full-length research papers, reviews, and Letters to the Editor. The Journal is devoted to the advancement and dissemination of knowledge concerning fermentation technology, biochemical engineering, food technology and microbiology.