DEVELOPMENT OF DESULFURIZATION SYSTEM FOR ANAEROBIC DIGESTION GAS USING PHOTOREACTOR
-
- ITO Ayumi
- 岩手大学 理工学部システム創成工学科社会基盤・環境コース
-
- ABE Shiho
- 岩手県
-
- TANAKA Hironori
- 岩手県
-
- ISHIKAWA Nao
- 岩手大学 理工学部システム創成工学科社会基盤・環境コース
-
- 川崎 栄
- (株)釜石電機製作所
-
- SASAMOTO Makoto
- 岩手大学
-
- UMITA Teruyuki
- 岩手大学 理工学部システム創成工学科社会基盤・環境コース
Bibliographic Information
- Other Title
-
- 光反応装置を利用した消化ガスの脱硫処理システムの開発
- ヒカリ ハンノウ ソウチ オ リヨウ シタ ショウカ ガス ノ ダツリュウショリ システム ノ カイハツ
Search this article
Abstract
Desulfurization of anaerobic digestion gas was investigated using photoreactors equipped with sterilizing lamp radiating ultraviolet with a wavelength of 254 nm or ozone lamp with wavelengths of 254 nm and 184 nm. When the digestion gas was injected with oxygen gas, the utilization of ozone lamp removed H2S more effectively than a combination of sterilizing lamp and TiO2 thin film. The H2S removal rate was increased proportionally with an increase in the initial H2S concentration. Humidifying the digestion gas enhanced the H2S removal rate. SO2 as by-product from H2S degradation was removed from the gas into a separate liquid with high alkalinity from dewatering machine for anaerobically digested sludge. Installing of the photoreactor and gas washer in front of an existing desulfurizer could reduce the amount of desulfurizing reagent by almost half. However, cheaper lamp and photocatalysis responsive to vacuum ultraviolet will be needed for the practical use of photoreactor.
Journal
-
- Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)
-
Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 73 (7), III_89-III_96, 2017
Japan Society of Civil Engineers