Cartridge filters for water treatment

Filtration through cartridge filters is a technique widely used in the elimination of particulates and contaminant compounds contained in the water, having their main applications in Wastewater Treatment Plants (Advanced treatments) and in pre-treatments in Desalination and Drinking Water Treatment Plants (DWTP).
The filtration is made by pressure, allowing the passage of clarified water and retaining the particles and the unwanted pollutants, until the filter is saturated and it is necessary to carry out its substitution by new ones. The saturation of the same is measured by the pressure difference between the pressure at the inlet and the exit. When this pressure difference exceeds a limit established in the operation, the substitution is made, since the energy cost of continuing to operate those cartridges does not compensate.

These filters are located inside a container or casing that can be in GRP or carbon/stainless steel, depending on each particular project. Some of the industrial applications of the cartridge filters would be: food industry, chemical processing, as the last step of protection of reverse osmosis membranes, potable water purification, etc.

Some of the advantages

• They occupy little space

• Economic.

• You can choose the pore filtration

• Very effective

• Simple maintenance

• Good corrosion resistant and have good chemical resistance.
From KEIKEN we can offer a wide range of cartridge filters that adapt to the requirements and needs of each particular project. In addition, we supply quality cartridge filters, suitable for each application in tertiary treatment and water purification. At KEIKEN, we maintain exclusivity agreements with manufacturers around the world, which allow us to have an unbeatable quality of the product and with very competitive price.

To request our Water Treatment services, our Polyelectrolyte preparation equipment or more information, you can contact us by email info@keiken.es

FAQs

What are cartridge filters, and how do they work in water treatment?

Cartridge filters that remove contaminants from a liquid use a cylindrical paper or plastic element and generally remove all small solids when water is forced under pressure through it, releasing clean, filtered water and trapping impurities in the filter.

Where are cartridge filters commonly used? 

Cartridge filters are used in wastewater and drinking water treatment facilities as part of the pre-treatment process for water to be desalinated. Additionally, they may be utilized in some food and chemical operations.

What are the advantages of cartridge filters?

Filters usually come in a small size, are low-cost, and provide a high level of filtration. The porosity of each filter can be customized to meet specific needs, is easy to maintain, and is resistant to corrosion and most chemicals, making it a viable option for industrial applications.

How do you know when a cartridge filter needs to be replaced?

The pressure differential between the two sides of the filter at the inlet and outlet must not exceed what is indicated as the maximum amount of allowable differential pressure for that particular filter. If the maximum differential is reached, it indicates the filter is blocked and won't filter water.

What kinds of cartridge filters are there? 

There are three primary types of cartridge filters: a pleated filter, a spun filter, and a string-wound filter, each intended to remove different levels of contaminants depending on how fine the contaminants are and how accurately the water is filtered.