TP22-24: Managing Legionella Using an Innovative Bacterial Control System and Rapid Genetic Legionella TestingThe greatest challenges for managing the risk of Legionella pneumophila in evaporative cooling water systems have been the lack of effective biocide treatment strategies and the lack of timely Legionella test results. The recent development of an on site, on line, rapid genetic test method for Legionella and an innovative plasma disinfection system (PDS) allows control of the population of all planktonic and sessile bacteria, including Legionella,

The dissipation of heat in industrial cooling systems has long been a source of pollution

its generation

tower fill fouling and SDI

the end goal is to provide more meaningful condition assessments and customized recommendations for a future course of action for periodic maintenance and repair

as well as the ignition characteristics with respect to cooling towers in real world scenarios outside of a laboratory

Aside from such possible questions as which of several offerings is more conservatively rated or represents higher quality materials (questions which are outside the scope of this paper) there remains the question of which offering represents the lowest total cost as the buyer seas it

As National Pollution Discharge Elimination System (NPDES) discharge requirements become increasingly more stringent a biocide that decomposes prior to discharge may become one of the few suitable methods for controlling microbes in cooling water systems

This is followed by a Historical Design narrative that traces the evolution of cooling tower design methods and highlights the contributions made by various people

different views of tower maintenance in general

detects potential problems

EVAPCO has designed

rapid bioassay and an on-line chemical analyzer can be used to control the effectiveness of biocides in open recirculating cooling systems permitting the optimization of the biocide program to achieve the most cost effective control