Shoji Taharazako

Nondestructive Internal Defect Detection of Agricultural Products Using Secondary Ultrasonic Wave

The purpose of the present work is to develop a method for nondestructive internal defect detection of agricultural products using secondary ultrasonic wave. The experimental apparatus consists of a function generator, a driver and detector, and a FFT Analyzer. The internal defects of several products and the ripeness of kiwi fruit were measured. Results obtained were as follows: (1)The amplitudes of waveform with respect to time for defective products were smaller than that for normal products. (2)There was a correlation between the amplitude of waveform and firmness of kiwi fruit.

Anaerobic Treatment of Distilled Waste Water of Wheat ’ shochu’ Using Two-Phase Fermenter

Distilled waste water of wheat “shochu” which contained high concentration of organic pollutants was anaerobically fermented with practical scale two-phase fermenter. The purification of digestive waste water, the productivity and utility of biogas were also investigated. The performance of the fermenter was evaluated using COD removal rate, removal efficiency of COD and BOD. The generated biogas rate, the produced biogas ratio and the concentration of methane gas were measured, and the efficiency of biogas generation was evaluated.