03-09: One Company's Legionella StandardFollowing issuance of Legionella guidelines by CTI, Shell Chemical Company (SCC) upgraded procedures for control of Legionella in its water systems. A Standard was developed which addresses all water systems. This paper will focus on SCC standards and guidelines for cooling towers. The Standard is more prescriptive than the CTI guideline and represents a compilation of regulations and guidelines in the literature. It requires a Health Risk Assessment

In wet-dry mode

and plan maintenance needs

and their responses were compared to that of the Simplex design

poor design

Field test methods can provide valuable information about the Legionella population and allow the cooling system owner to promptly assess the operating risk and implement corrective actions – reducing the risks to public health

Plywood for Use in Cooling Towers

visible steam plume occurs

This has called for converting to surface water supplies and discontinuing the use of ground water

This paper discusses the results and lessons learned at a Power Plant faced with new NPDES discharge limits for copper discharge

This code is similar to the open circuit tower in both form and function except for the fluid circuits

The purpose of this guideline is to provide practices that reduce the risk of exposure to Legionella from evaporative head rejection systems

Kuala Langat Power Plant (KLPP) draws water from the Kuala Langat River