Geisinger pioneers legionella control

In a groundbreaking effort, the Facilities Operations Group of Geisinger Health System, Danville, PA, developed a system to eliminate legionella bacteria from its domestic water supply. Their solution was the first successful system implemented at a hospital in the U.S. Test results conclusively prove that the organism is controlled and the safety of patients and staff is enhanced.

04/28/2003


In a groundbreaking effort, the Facilities Operations Group of Geisinger Health System, Danville, PA, developed a system to eliminate legionella bacteria from its domestic water supply. Their solution was the first successful system implemented at a hospital in the U.S. Test results conclusively prove that the organism is controlled and the safety of patients and staff is enhanced.

The main campus of the health system is home to a large medical center including a level one regional trauma center on a 460-acre site with 2 million sq ft of buildings and a 550,000-gal reservoir supplied by a well, a spring, and municipal water.

Statistics show that 50% of healthcare facilities harbor the dangerous legionella organism in their domestic water systems. Legionnaires disease is a type of pneumonia that is fatal if not diagnosed and treated early. A susceptible host contracts the disease by inhaling aerosolized water droplets containing the organism.

Tests using a heat-and-flush procedure provided only temporary improvements by killing legionella bacteria on the surface of the biofilm in the piping network. Bacteria deeper in the biofilm were not affected and re-emerged. Finally, a cure was found by injecting chlorine dioxide (ClO 2 ) into the water system and implementing a number of other changes:

  • Dead legs and distal sites in the piping system were removed

  • Old cross-flow cooling towers with 10-12-deg approaches were replaced with 5-deg approach counterflow towers with no sumps

  • Compressed air system has been converted to an entirely dry system by installing scroll compressors, variable-frequency-drive oil-free compressors, and heat-of-compression dryers

  • Regular flushing of hot-water storage tanks.

    • By combining research, problem analysis, system engineering, and improved practices, the problem of legionella bacteria has been eliminated.





No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
2016 Product of the Year; Diagnose bearing failures; Asset performance management; Testing dust collector performance measures
Safety for 18 years, warehouse maintenance tips, Ethernet and the IIoT, GAMS 2016 recap
2016 Engineering Leaders Under 40; Future vision: Where is manufacturing headed?; Electrical distribution, redefined
SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Safety at every angle, Big Data's impact on operations, bridging the skills gap
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
Applying network redundancy; Overcoming loop tuning challenges; PID control and networks
Driving motor efficiency; Preventing arc flash in mission critical facilities; Integrating alternative power and existing electrical systems
Package boilers; Natural gas infrared heating; Thermal treasure; Standby generation; Natural gas supports green efforts

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role of plant safety and offers advice on best practices.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
This article collection contains several articles on strategic maintenance and understanding all the parts of your plant.
click me