| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
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| Outline of Final Research Achievements |
Inactivation method on zooplankton and bacterium in water has been developed. Micro bubbles and shock wave to inactivate the microorganisms are generated by pulsed power technology. The diameter and number density of the micro bubble are estimated to be 50 um and 0.065 mm2, respectively. The velocity of the shock wave decreases to Mach number 1 if it propagates in 200 us. We found that 98 % of the larva of Artemia as a zooplankton is successfully inactivated by firing 800 injections of the pulsed power into water. The energy efficiency for inactivation reaches 0.25 million larvae a kWh. Bacillus subtilis as a bacterium are also inactivated by firing 100 injections. The inactivation rate and energy efficiency are 97 % and 4 trillion cells a kWh, respectively.
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