Smart Water Symposium

Oral

396152 - Mobile and Hybrid-type water production system under smart water grid technologies of KOREA

Monday, June 4
2:00 PM - 3:30 PM
Location: Lakeshore A
Co-Authors: Dalsik Woo, 240,Sapyeong-daero, Seocho-gu, Seoul, Korea – Korea Interfacial Science & Engineering Institute; Kukheon Han, Suwon-Si, Gyeonggi-Do, Korea – Smart Water Grid O&M Research GRoup; Kyungtaek Yum, Suwon-Si, Gyeonggi-Do, Korea – Sungkyunkwan University

Smart Water Grid(SWG) system can solve the problems arising from the imbalance between water supply and water demand. The use of multi-source waters including surface water, groundwater, seawater etc., can help to secure enough water. The available quantity of each water resource can be predicted, allowing sustainable use of multi-source waters. The intelligent management system can allow efficient water supply with minimum water loss and optimized energy cost. Real-time water demand can be simultaneously monitored by AMI network. Information on water usage and quality can be shown through the smartphone app.
As a result of this research, demonstration plant(DP) was designed and constructed in in Daecheong Island, Korea, to assess and verify the applicability of SWG technologies, which were developed for the first time. In Daecheong Island, water shortage and poor quality of water service were the major issues. A water treatment system based on blending of multi-source waters and hybrid-type water treatment with a combination of submerged ultrafiltration, brackish-water-reverse-osmosis(BWRO), seawater-reverse-osmosis(SWRO) was introduced to mitigate the water shortage. Compared with single seawater usage, blending technology is much more economic due to lower consumption of electricity. When applying 30 ~ 70% of blending ratio, power use reduction was around 11.9 ~ 32.4 % compared to single seawater usage. Additionally, the demonstration plant is a mobile system. This plant consists of several containers, which are units for water treatment or system control. If necessary, this plant can easily move from one place to the other place.
In conclusion, this technology is a possible alternative for developed and developing countries with water shortage. Also, this system can identify and secure available water resources and supply them in a cost-effective way.

Wonyong Kang

Korea Interfacial Science & Engineering Institute

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