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The Champion International Corp mill at Roanoke Rapids, NC, experienced operational problems in the precipitator in the early 1990s due to corrosion, and equipment replacement was considered the best solution. A 'turnkey' solution was adopted with new a new precipitator supplied by Environmental Elements Corp of Baltimore, MD. The project was a success with the use of tie-ins and working during regular maintenance outages., Operation at champion international's mill in Roanoke Rapids, N.C., began in 1906. Today, the mill produces about 1,400 tpd of unbleached kraft paper and paperboard, including linerboard, grocery bag, and [...]

Discusses the approach taken by a project team of the Tennessee Valley Authority (TVA) to monitor and control the temperature differential on a high-strength, mass concrete foundation. TVA installation of selective catalytic reduction (SCR) environmental equipment at several of its fossil fuel power plans in the Tennessee Valley; Instrumentation and monitoring; Effects of internal heat of hydration; Factors contributing to the peak temperature rise in the foundation.