Filtration

Filters are standard pretreatment systems in the water treatment process, effectively removing a large percentage of suspended solids from your process water by straining it through various media. Esli offers a complete range of high-quality filter systems that minimize maintenance and maximize the performance of water demineralization systems.

When do you need it?

Filters are required in virtually every water treatment process, removing suspended particulate matter from your intake water (municipal or natural source). The type of filter you employ is determined by factors such as flow rate, the quality of water you require and the properties of your intake water.

Gravity Filters are simple systems, typically employed downstream of clarifiers, that allow gravity to force water through a filter bed of sand and anthracite. This process does a thorough job of removing particulate matter at low flow rates.

Pressure Filters are designed to remove specific contaminants from pressurized process water using specialized filter beds. Specialized pressure filters are often used in conjunction with one another, as determined by the quality of your intake water and your downstream equipment requirements.

• Multi-Media Filters use layers of different media to remove suspended solids from supply water.
• Activated Carbon Filters remove free Chlorine and other oxidants that can damage resins and membranes downstream over time.
• Greensand Filters remove Iron and Manganese from supply water, both of which can damage resins and membranes in downstream treatment equipment.

Cartridge Filters use standard, interchangeable filter elements to remove suspended solids from system water, and are employed to protect RO and other water treatment systems downstream.

 

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