See page 17. ITT supplied an ultra pure water system to this steel company in China which required different grades of water quality for cooling, quenching and boilers. Because steel production utilizes many different processes with high energy input and has many ancillary support functions, it is an industry that has high water usage with varied quality specifications. Baosteel required an industrial grade system that would provide flexibility and yet be economical to meet its multiple water requirements. ITT designed, supplied, installed and commissioned a system which produces 9.5 million gallons (36,000 m³) of water per day by a process of pre-filtration, followed by two pass RO and partial electro-deionization. The system takes pretreated surface water through a coagulation filtration process. The water is then processed by a two-pass RO system. Water from the first pass is used as general purpose plant water, including cooling, as well as feed water to the second pass RO system. The second pass RO permeate water is fed to an electro-deionization system for production of ultra-pure water for boilers. ITT was selected to supply the system because of their innovative approach and the resulting economic efficiency of the system. The plant has met all the water quantity and quality specifications and has been operating successfully for several years.

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• Xylem

• Electrodeionization

• Reverse Osmosis

• Ultrapure Water

• Water Treatment

• Ultrapure Water

• China

• Case Study