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Technology

i Water™ System

Based on our plant wastewater treatment technology accumulated since the 1960’s, Chiyoda developed a next-generation water recycling system as a solution to cope with the increasingly severe water shortage, and offers a system that recycles industrial wastewater into i Water™ (industrial water). This system consists mainly of the following three technical elements:

  1. An optimum solution that integrates process engineering, utility engineering, and wastewater treatment engineering that Chiyoda specializes in
  2. Water treatment system that incorporates the latest water treatment membrane technologies, such as MBR (Membrane Bioreactor) and RO (Reverse Osmosis)
  3. Response to requirement of variable resources recovery and ZLD(Zero Liquid Discharge)

  1. This energy-saving wastewater recycling system recycles industrial wastewater from petroleum and petrochemical plants and other chemical plants and brings these wastewater to the quality required for re-usage in plants as recycled water, in the volume they require, while allowing for the use of redundant utilities.
  2. A water recycling rate of 65% or more can be achieved. In addition, a water recycling rate of nearly 100% can be achieved by ZLD system, enabling compliance with strict environmental regulations.
  3. This system has both lower initial and running costs than conventional systems. In addition, this requires a significantly smaller installation area.
  4. Application: Refinery and petrochemical plants, GTL (Gas-to-Liquids) plants, and other chemical plants.