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Volume 38 Issue 8
Nov.  2020
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Article Navigation >  ENVIRONMENTAL ENGINEERING  > 2020  >  38(8): 8-12
JING Xiu-yan, WANG Wen-ji, DONG Qiang-fei, QIAO Le-le, DENG Yue-hua. ADSORPTION OF PROPRANOLOL ON MONTMORILLONITE SATURATED WITH DIFFERENT METAL CATIONS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 67-74. doi: 10.13205/j.hjgc.202205010
Citation: ZHANG Min, TASHIRO Yu-kihiro, SAKAI Ken-ji. OXYGEN SUPPLY PERFORMANCE OF GAS-INDUCING AGITATOR SYSTEM FOR AUTOTHERMAL THERMOPHILIC AEROBIC DIGESTION PROCESS[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(8): 8-12. doi: 10.13205/j.hjgc.202008002
shu

OXYGEN SUPPLY PERFORMANCE OF GAS-INDUCING AGITATOR SYSTEM FOR AUTOTHERMAL THERMOPHILIC AEROBIC DIGESTION PROCESS

doi: 10.13205/j.hjgc.202008002

  • Department of Bioscience and Biotechnology, Kyushu University, Fukuoka 819-0395, Japan

  • Received Date: 2020-04-03
    Abstract
  • Gas-inducing agitator system and disk turbine agitator system were applied to autothermal thermophilic aerobic digestion system; this study compared the oxygen supply performance and economic feasibility of these two agitator systems. The research showed that the gas-inducing agitator system was suitable for a stirring rate of 500~1100 r/min, a lower or higher stirring rate would affect the oxygen supply performance; with a stirring rate of 900 r/min and air flowrate of 0.5 L/min (by volume), the KLα value of the disk turbine agitator system was 108.01 h-1, lower than that of gas-inducing agitator system of 124.52 h-1; disk turbine agitator system under the same stirring rate and air flowrate, KLα value at 50 ℃ was greater than that of 30 ℃. To achieve the same KLα value under 1000 r/min, the power consumption of the gas-inducing agitator system was about 1/3 of that of the disk turbine agitator system.
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