Dongwoo Han

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This paper presents a study on the analysis of the characteristics according to the arrangement and number of receivers of a system that determines wind direction and velocity, by measuring the phase difference of continuous-wave ultrasonic waves. The sensitivity and measurement range were geometrically analyzed and experimentally verified according to the(More)
A continuous full scale thermophilic anaerobic digestion (AD) of wastewater sludge in conjunction with thermal pretreatment was developed for enhanced CH4 production as well as sludge stabilization and reduction. Continuous thermal sludge treatment obtained 45.5, 51.7, and 26.1% of hydrolysis based on TS, VS, and COD at 160°C for 30min. After AD, TS, VS,(More)
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