Problem solving article: The benefits of replacing your aging tertiary filter with disc technology

About this article

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Disc filters have rapidly become the technology of choice for many wastewater treatment facilities when it comes to adding or retrofitting tertiary filtration capacity. They can be outfitted with media that can deliver the necessary performance needed to meet current effluent or reuse requirements. Also, they can pack a lot more filtration capacity into a smaller area than traditional technology, and may even be able to utilize the same basins as an original travelling bridge or other filter types. However, they are not all the same so there are some things you should know when considering your options.

What you'll learn:

  • The challenges of older tertiary filter technology such as travelling bridge style filters and how growth and regulations required new solutions such as the disc filter
  • The pros and cons of the most common disc filter (and similar style) replacement / retrofit designs on the market
  • How a flexible rectangular media design addresses some key disc filter challenges and maximizes tertiary capacity in existing basins

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