EFFECT OF TEMPERATURE ON METHANOGENIC TREATMENT OF REAL SEWAGE TREATMENT USING AnMBR
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- ISOZUMI Naoko
- 東北大学大学院 工学研究科
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- JI Jiayuan
- 東北大学大学院 工学研究科
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- LI Yu-You
- 東北大学大学院 工学研究科
Bibliographic Information
- Other Title
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- 嫌気性MBRを用いた実下水のメタン発酵処理に及ぼす温度の影響
- ケンキセイ MBR オ モチイタ ジツ ゲスイ ノ メタン ハッコウ ショリ ニ オヨボス オンド ノ エイキョウ
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Abstract
<p> The activated sludge treatment of sewage has disadvantages such as energy consumption due to aeration and generation of a large amount of excess sludge. The anaerobic membrane bioreactor(AnMBR) is attracting attention as a new wastewater treatment technology because it is energy-saving / energy-creating process and has a small amount of sludge production. In this study, a continuous treatment experiment of AnMBR treatng real sewage was conducted by changing the operating temperature and hydraulic retention time (HRT). The effect of temperature on treatment performance and biogas production was evaluated, and the COD mass balances at different conditions were identified. At a condition of HRT6 h and operating temperature 20 °C, a good treatment performance such as effluent BOD< 20 mg/L, effluent COD< 50 mg/L and removal efficiency >90% was achieved. At a condition of HRT6 h and operating temperature 25 °C, the biogas production was 0.079 L-gas / L-sewage. The amount of sludge produced by AnMBR method was less than that of the activated sludge treatment process even under high load conditions or low temperature conditions.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)
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Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 76 (7), III_173-III_179, 2020
Japan Society of Civil Engineers
