Graver Technologies manufactures ion exchange and septa to enhance the performance of each phase of radwaste processing.
Nuclear plants treat their liquid radwaste onsite. Many plants use a specialized radwaste treatment company to process the radwaste and several plants operate their own systems. Some of these original systems include Powdex® precoat vessels followed by ion exchange deep beds. Radwaste processors erect trains of small vessels containing some or all of the following: Granular Carbon, Cation exchange resin, Anion exchange resin, Mixed bed ion exchange, and a polishing cartridge filter housing. A few systems also include reverse osmosis. The standard cartridge filters are replaced in some cases with a specialty cartridge containing Graver Technologies radionuclide selective media. A Graver product is available to enhance the performance of each phase of radwaste processing.
How often should gas turbine filters be replaced?
This depends on the environment and filter type; however, pre-filters are changed every 3–6 months, while final filters may bechanged once in a year or two. Monitoring pressure drop is key to determiningreplacement timing.
What factors affect the operating life of a gas turbine filter?
Here are some factors:
How do I know when a filter needs to be changed?
Differential pressure across the filter is animportant aspect in this case. If it increases beyond the set threshold, thefilter may be clogged or need cleaning or replacement.
What is pressure drop and why does it matter?
Pressure drop is the resistance to airflow through afilter. A high-pressure drop reduces turbine efficiency and increases energycosts. Selecting low-resistance filters helps improve performance.
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