Kajima Corporation

Research Institute of Innovative Technology for the Earth

Yoshiyuki Ueno

Kazuya Watanabe

Masayoshi Morimoto

Susumu Satou

Takefumi Shimoyama

Akira Yamazawa

Seiji Ootsuka

Tatsushi Kawai

One object is to provide a measuring device configured to evaluate the power generation characteristics of a response-delay type fuel cell automatically, precisely, and with excellent reproducibility with consideration of the response delay against power load fluctuations, and effectively acclimatize and develop microorganisms that are provided to generate power. A potentio-galvanostat is connected to a microbial fuel cell provided as an exemplary response-delay type fuel cell. Further, an automatic measuring device is connected to the potentio-galvanostat. The automatic measuring device has a program function and measures the internal resistance of the microbial fuel cell at set time. The internal resistance measurement is executed through the automatic measuring device that instructs the potentio-galvanostat to change a current value flowing to the microbial fuel cell and that repeatedly executes the process of measuring and recording a voltage value of the microbial fuel cell and the current value while changing a current control value in stages after the voltage value is stabilized.

Internal-resistance measuring device for response-delay type fuel cell

The present invention relates to a process for the production of hydrogen comprising treating in an anaerobic condition a substrate such as waste water including organic matter using sludge compost, whereby stable hydrogen generation at a higher efficiency for a longer period of time is attained together with the treatment of waste water.

Process for the production of hydrogen by microorganisms

Growing community of inventors

Tokyo, Japan

Yoshiyuki Ueno