different types of filters

Comparison of different types of filters

Comparison between different types of filters (solid carbon filter, sediment filter, and granular carbon filter). These filters are used in many applications and have different uses and benefits. To compare these three types of filters, we must know some basics that pertain to each type:

Stainless steel carbon filter (CTO):

  • Made of carbon steel and stainless
  • Effective in removing odor, taste and organic matter
  • It has a longer shelf life than other types
  • More expensive than PP sediment filter but less than UDF granular activated carbon filter
  • It requires periodic cleaning to remove accumulated impurities

Sediment filters (PP):

  • Made of polypropylene
  • Effective in removing impurities and large deposits
  • It has an average lifespan
  • Cheaper than the other two options
  • Does not remove odors or organic materials

Granular activated carbon filter (UDF):

  • Made of granular activated carbon
  • Highly effective in removing odors, organics and chemicals
  • It has a long shelf life
  • More expensive than the other two options
  • Activated carbon requires changing periodically

The most appropriate choice depends on the quality of the water to be treated and your budget. If the focus is on removing impurities and sediments only, a PP sediment filter is the cheapest option. To remove odors and chemicals, a UDF granular activated carbon filter is best. If you want a longer lifespan with good removal of impurities and odors, a CTO carbon steel filter may be the perfect choice.

The reason why some different types of filters are not used to remove unpleasant odors

In general, a PP sediment filter is not very effective in removing unpleasant odors. This is because the PP sediment filter mainly focuses on removing tangible impurities and sediments, but does not have much ability to remove odors, organics, or chemicals.

Activated carbon filters, such as the UDF granular activated carbon filter, are the most effective at removing odors and organic matter from water. This is because activated carbon has a high absorption capacity for odor-causing molecules and organic pollutants.

Therefore, if your main goal is to deodorize as well as remove impurities and sediments, it is recommended to use some type of activated carbon filter instead of a PP sediment filter. The PP sediment filter can be used as the initial step for coarse filtration, and then the activated carbon filter to remove odors and organics more effectively.

The reason why PP sediment filter and activated carbon filter are used together in the filtration system

It is possible to use PP sediment filter and UDF granular activated carbon filter together in the filtration system to get better results.

There are several ways to install these two types of filters together:

Consecutive order:

The PP sediment filter is placed first to remove impurities and large sediments.

A UDF activated carbon filter is then placed after it to remove odors, organic and chemical contaminants.

This arrangement takes advantage of the capabilities of each type of filter.

Parallel arrangement:

A PP sediment filter and another UDF-activated carbon filter are placed in parallel in the filtration system.

This allows the water to be filtered in two separate stages.

Compact arrangement:

A composite filter is designed to contain a layer of PP sediment filter and a layer of UDF-activated carbon.

This provides integrated filtration in one unit.

Using these different methods, it is possible to take advantage of the potential of each type of filter and achieve the best results in water filtration and removing impurities, odors, and pollutants.

When can different types of filters be used separately?

The UDF active carbon filter can be used separately from the PP sediment filter. In fact, they are often used separately in many water and air filtration applications.

There are several situations in which the use of a separate UDF-activated carbon filter is appropriate:

  • If the main goal is to remove odors, and organic and chemical substances, without having to remove tangible impurities and deposits.
  • When the feed water is relatively clean of impurities and sediments, a PP sediment filter is not required.
  • In certain applications such as air filtration, where a sediment filter may not be needed.
  • When it is necessary to perform additional specialized filtration after the main filtration using a PP sediment filter.

In these cases, the UDF-activated carbon filter can be installed independently without the need for a PP sediment filter. This provides flexibility in filtration system design and the ability to focus on the specific requirements of the application.

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