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Information and Communication Technologies for Smart Water Grid Applications
Ballhysa Nobel,Gyewoon Choi,변성준 한국인터넷방송통신학회 2019 Journal of Advanced Smart Convergence Vol.8 No.2
The use of Information and Communication Technologies (ICT) is the key to operate a change from the traditional manual reading of water meters and sensors to an automated system where high frequency data is remotely collected and analyzed in real time, one of the main components of a Smart Water Grid. The recent boom of ICT offers a wide range of both wired and wireless technologies to achieve this objective. We review and present in this article the most widely recognized technologies and protocols along with their respective advantages, drawbacks and applicability range which can be Home Area Network (HAN), Building Area Network (BAN) or Local/Neighborhood Area Network (LAN/NAN). We also present our findings and we give recommendations on the application of ICT in Smart Water Grids and future work needed.
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Information and Communication Technologies for Smart Water Grid Applications
Ballhysa, Nobel,Choi, Gyewoon,Byeon, Seongjoon The Institute of Internet 2019 International journal of advanced smart convergenc Vol.8 No.2
The use of Information and Communication Technologies (ICT) is the key to operate a change from the traditional manual reading of water meters and sensors to an automated system where high frequency data is remotely collected and analyzed in real time, one of the main components of a Smart Water Grid. The recent boom of ICT offers a wide range of both wired and wireless technologies to achieve this objective. We review and present in this article the most widely recognized technologies and protocols along with their respective advantages, drawbacks and applicability range which can be Home Area Network (HAN), Building Area Network (BAN) or Local/Neighborhood Area Network (LAN/NAN). We also present our findings and we give recommendations on the application of ICT in Smart Water Grids and future work needed.
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Wastewater Treatment Plant Control Strategies
Ballhysa, Nobel,Kim, Soyeon,Byeon, Seongjoon The Institute of Internet 2020 International journal of advanced smart convergenc Vol.9 No.4
The operation of a wastewater treatment plant (WWTP) is a complex task which requires to consider several aspects: adapting to always changing influent composition and volume, ensuring treated effluents quality complies with local regulations, ensuring dissolved oxygen levels in biological reaction tanks are sufficient to avoid anoxic conditions etc. all of it while minimizing usage of chemicals and power consumption. The traditional way of managing WWTPs consists in having employees on the field measure various parameters and make decisions based on their judgment and experience which holds various concerns such as the low frequency of data, errors in measurement and difficulty to analyze historical data to propose optimal solutions. In the case of activated sludge WWTPs, parts of the treatment process can be automated and controlled in order to satisfy various control objectives. The models developed by the International Water Association (IWA) have been extensively used worldwide in order to design and assess the performance of various control strategies. In this work, we propose to review most recent WWTP automation initiatives around the world and identify most currently used control parameters and control architectures. We then suggest a framework to select WWTP model, control parameters and control scheme in order to develop and benchmark control strategies for WWTP automation.
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Wastewater Treatment Plant Control Strategies
Nobel Ballhysa,Soyeon Kim,Seongjoon Byeon 한국인터넷방송통신학회 2020 Journal of Advanced Smart Convergence Vol.9 No.4
The operation of a wastewater treatment plant (WWTP) is a complex task which requires to consider several aspects: adapting to always changing influent composition and volume, ensuring treated effluents quality complies with local regulations, ensuring dissolved oxygen levels in biological reaction tanks are sufficient to avoid anoxic conditions etc. all of it while minimizing usage of chemicals and power consumption. The traditional way of managing WWTPs consists in having employees on the field measure various parameters and make decisions based on their judgment and experience which holds various concerns such as the low frequency of data, errors in measurement and difficulty to analyze historical data to propose optimal solutions. In the case of activated sludge WWTPs, parts of the treatment process can be automated and controlled in order to satisfy various control objectives. The models developed by the International Water Association (IWA) have been extensively used worldwide in order to design and assess the performance of various control strategies. In this work, we propose to review most recent WWTP automation initiatives around the world and identify most currently used control parameters and control architectures. We then suggest a framework to select WWTP model, control parameters and control scheme in order to develop and benchmark control strategies for WWTP automation.
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부산 온천천 일원의 침수 분석을 위한 레이더 강우와 관측 강우의 시뮬레이션 결과 비교 분석
이수원 ( Suwon Lee ),( Nobel Ballhysa ),김소연 ( Soyeon Kim ),변성준 ( Seongjoon Byeon ) 한국수처리학회 2020 한국수처리학회지 Vol.28 No.5
Recently, due to the effects of climate change, torrential rains are increasing in frequency . This increasing frequency in which a large amount of rainfall falls within a short period increases the probability of flooding that can cause enormous human and material damage. Therefore, this study attempts to understand the characteristics of the inundation basin in the study area using rainfall data analyzed through radar images and 10-minute observed rainfall data from the Korea Meteorological Administration rainfall observatory for the Busan Oncheoncheon basin, which is an area regularly subject to flooding. To this end, a numerical model is constructed using the MIKE-Urban program with local input data (such as the DEM of the study area), and the radar rainfall data’s accuracy is verified through a comparative analysis of the observed meteorological service rainfall data and radar rainfall data. Hydrographs obtained for both rainfall data sets (observed and radar) for the August 2014 flooding event are compared as well as the flooding extents generated when simulating using the MIKE-Urban model. Results show that the difference between flood extents (<5%) is small enough to consider radar rainfall a suitable dataset for rainfall input in regions without rainfall gauges.
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