While the level of customer expectation for water service is becoming higher, water distribution system (WDS) management is becoming more and more difficult. The causes are the aged waterworks facilities and the increased risk of water quality in water resource due to climate change and water pollution. So the rate of drinking tap water directly in Korea is still only 7.2%.
In this study, several technologies are developed for a management and operation enhancement of transporting a high quality of water produced in water treatment plant to customer stable and safely. These are consisted of integrated water network management system, smart metering system and active self-control technologies for re-chlorination and self-flushing. The integrated water network management system support a decision making to efficient real-time operation and management through the real time analysis and network simulation, and the smart metering system improves WDS management and customer service with actionable insight. The re-chlorination and self-flushing system minimizes civil complaints regard to water quality based on the real time water quality data measured at critical points. The re-chlorination system equalize and minimize chlorine concentration while sustaining a disinfection ability and self-flushing system prevents an occurrence of turbid water at customer’s water tap. In the first test-bed study on P city centered on the Korean Peninsula (adjacent to DMZ) at 2015, the customer’s satisfaction increased from 55.0% to 92.3% and civil complaints of water quality decreased from 4.5 cases/month to 1.4 cases/month and further research to improve the performance of each technology is being conducted from 2016 to 2021 through Eco-Smart waterworks research projects which in supported by Korean Ministry of Environment.