RemixWater

Country
Japan
Sustainable development goals
  • Clean water and sanitation
Project link
http://www.hitachihyoron.com/jp/pdf/2016/04/2016_04_06.pdf

About the project

RemixWater is a seawater desalination and water reuse integrated system that aims to save energy and cost through mixing seawater and waste water prior to desalination. The system incorporates artificial intelligence to develop detailed indexes that allow for improved management of the system, including identification of potential fouling (the buildup of unwanted materials on solid surfaces that would detriment the function of water systems).

More project information

RemixWater system is a seawater desalination and water reuse integrated system that aims to save energy and cost through mixing seawater and waste water prior to desalination. The system incorporates artificial intelligence to develop detailed indexes that allow for improved management of the system, including identification of potential fouling (the buildup of unwanted materials on solid surfaces that would detriment the function of water systems).

RemixWater was established by the New Energy and Industrial Technology Development Organization (NEDO) under their International Energy Consumption Efficiency Technology and System Demonstration Project. Hitachi, who constructed the RemixWater system, was hired as a contractor by NEDO to develop the seawater desalination and water reuse integrated system under the framework of NEDO’s project. 

The indexes and data analysis conducted by artificial intelligence allowed water management teams to visualize issues such as fouling within the water system, as well as understand the chain of events that lead to high pressure levels at the opening of reverse osmosis membrane devices. Due to the control of fouling and high-pressure levels, the RemixWater system and artificial intelligence has allowed for lower costs and energy saving by optimizing pump power for maximum efficiency. Hitachi has gone forward with the expansion of the RemixWater system and is currently working to build a facility in Durban, South Africa. 

This project addresses the Clean Water and Sanitation SDG, as it conducts both the recycling of soiled water and provides clean water to the region.