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미생물 전기화학적 혐기성소화에서 메탄의 발생량, 함량, 수율에 대한 연구
오환진,권혜정,정진도 한국수처리학회 2019 한국수처리학회지 Vol.27 No.2
Various studies reported that the bio-electrochemical anaerobic digestion (BEAD) reactor improved COD removal efficiency, methane production, and methane yield. However, actual methane yield based on the removed COD can not overcome theoretical methane yield based on the removed COD. The methane yield would be improved from hydrogen produced in reactor by electrolysis, however, the possibility of this was very low because the amount of hydrogen produced by electrolysis was extremely low. This study confirmed that the BEAD-accelerated stabilization and methane production rates. Interestingly, the methane yields of AD and BEAD reactors were close to theoretical value (0.35 L-CH4/g-CODremoved) at the final steady state. These results show that BEAD cannot overcome the theoretical methane yield without additional electron donor and BEAD can improve COD removal and methane production rate. The primary factors influencing methane production and yield were chemical compositions of hydrogen and carbon, as well as the relative O/H ratio. In other word, there are no mechanism for improving methane production in the BEAD reactor based on theoretical chemical composition of substrates. Methane production is only improved by a higher COD removal efficiency by the BEAD reactor than of AD reactor. Further research should be conducted to confirm bio-electrochemical reaction mechanism in the BEAD reactor.
수처리시설용 광대역 통합망 연계형 실시간 계측 관리 시스템 UI개발
양승연,김진태,오환진,이민우 한국위성정보통신학회 2015 한국위성정보통신학회논문지 Vol.10 No.4
본 논문에서는 수처리 시설용 광대역 통합망 연계 실시간 계측관리 시스템 UI 개발을 제안한다. 수처리시설용 광대역 통합망을 통해 서버로 수신된 센서 및 영상 데이터를 Web과 연동하기 위한 프로그램을 개발하며, 이와 별도로 독립적으로 운영이 가능한 UI를 개발한다. 전송된 센서 및 영상데이터를 원격 모니터링 하기 위한 웹 서버를 구축하며 센서 데이터, 영상 데이터를 Web기반의 UI를 통해 감시 및 제어가 가능하도록 개발하였다. 제안하는 수처리 시설용 광대역 통합망 연계형 실시간 계측관리 시스템을 통하여 센서를 통한 측정시간, 농도, 수심 계면 등의 현재 상태를 파악할 수 있으며 영상 모니터링을 통하여 실시간으로 수처리 시설의 정상적인 동작여부와 보안 및 화재 등의 인명피해 여부 를 확인 할 수 있다. 뿐만 아니라 실시간 계측 관리 시스템을 실시간으로 모니터링 할 수 있는 UI 개발로 인해 실시간으로 정보를 한눈에 볼 수 있다. In this paper, we propose a real-tim measurement management system UI development linked the Water treatment facilities broadband Convergence Network. The sensor and the image data received by the server develop a program to interact with Web through water treatment facilities broadband convergence network. So, Separately develop UI capable of independently operating. Building a web server for remote monitoring of the transmission sensor and the image data. And Monitoring and control is possible the sensor data and image data through the Web-based UI. We can grasp the current state such as measurement time, concentration and depth of interface through the proposed real-time measurement management system UI development liked the water treatment facilities broadband convergence network. So, we can check in whether the normal operation of water treatment facilities and whether the casualties such as fire and security. As well as real time to see the information at a glance due to UI development can be raal-time monitoring of real-time measurement management system.