The seasonal variation of emission of greenhouse gases from a full-scale sewage treatment plant

Shuhei Masuda, Shunsuke Suzuki, Itsumi Sano, Yu You Li, Osamu Nishimura

研究成果: Article査読

30 被引用数 (Scopus)

抄録

The seasonal variety of greenhouse gas (GHGs) emissions and the main emission source in a sewage treatment plant were investigated. The emission coefficient to treated wastewater was 291 gCO2m-3. The main source of GHGs was CO2 from the consumption of electricity, nitrous oxide from the sludge incineration process, and methane from the water treatment process. They accounted for 43.4%, 41.7% and 8.3% of the total amount of GHGs emissions, respectively. The amount of methane was plotted as a function of water temperature ranging between 13.3 and 27.3°C. An aeration tank was the main source of methane emission from all the units. Almost all the methane was emitted from the aeration tank, which accounted for 86.4% of the total gaseous methane emission. However, 18.4% of the methane was produced in sewage lines, 15.4% in the primary sedimentation tank, and 60.0% in the aeration tank.

本文言語English
ページ(範囲)167-173
ページ数7
ジャーナルChemosphere
140
DOI
出版ステータスPublished - 2015 12 1

ASJC Scopus subject areas

  • 環境工学
  • 環境化学
  • 化学 (全般)
  • 汚染
  • 健康、毒物学および変異誘発

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