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Steel
Friday | 28 May, 2010 | 6:14 am

Implementing the latest technology

By Modern Metals' staff

June 2010 - ThyssenKrupp Stainless USA and ThyssenKrupp Steel USA have announced the completion of the process water and wastewater treatment facilities at its new facilities in Calvert, Ala. The systems were designed and built by N.A. Water Systems, Pittsburgh, Pa., a Veolia Water Solutions & Technologies company. The water systems will be operated by Veolia Water under a long-term outsourcing contract.

Veolia Water is the water division of Veolia Environment, a water and wastewater services and technological solutions company.

According to a ThyssenKrupp press release, the process water system is currently operating for the commissioning of equipment for the new carbon steel and stainless steel facilities. Once completed, the carbon steel operations will have a manufacturing capacity of 4.3 million metric tons of carbon steel products, with plans to start up the hot strip mill this this summer and ramping up to include cold rolling and galvanizing processes. In addition, the stainless steel operations will have a manufacturing capacity of 1 million metric tons of stainless steel products, beginning this fall with cold-rolling and finishing processes and a later ramp-up of hot and cold forming operations and a melt shop. Total treatment capacity for the process water is 14.4 million gallons per day. The 5.8-million-gallons-per-day capacity wastewater treatment system is ready for operation once steel production begins this summer.

Both the process water and wastewater treatment systems incorporate VWS' patented Actiflow Turbo sand-ballasted clarification technology. The wastewater treatment system also includes VWS' AnoxKaldnes Moving Bed Bioreactor, integrated with an activated sludge process for organics removal, and chemical conditioning using an innovative Turbomix reactor for metals precipitation. These technologies enable the treatment processes to produce high-quality water within a very small footprint, compared to conventional systems.

ThyssenKruppStainless USA Construction Coordinator John Hayden pointed out in a press release that the completed project is a "culmination of more than two years of extraordinary teamwork with Veolia Water, local contractors R.J. Baggett and Gulf Electric, and Crowder Construction. The plant is designed with the latest technology to safeguard the environment and provide flexibility for future growth and builds upon ThyssenKrupp's commitment to sustainability."

N.A. Water Systems completed the design-build projects with value-added engineering and an exemplary safety record, on schedule and under the budget originally projected. MM

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