The WATER FILTRATION SYSTEM is responsible for making the water pass through a porous medium, with the aim of conserving the greatest possible amount of suspended matter.

The primary treatment is responsible for removing dissolved solids from wastewater. The main physical-chemical processes that can be included in the primary treatment are the following: sedimentation, flotation, coagulation – flocculation and filtration.

The Filtration System Processes

The objective is to produce water suitable for a specific purpose. Most water is disinfected for human consumption (drinking water), but water purification can also be designed for a variety of other purposes, including meeting the requirements of medical, pharmaceutical, chemical, and industrial applications. 

The methods used include physical processes such as filtration, sedimentation and distillation; Biological processes such as slow sand filters or biologically active carbon; also chemical processes such as flocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light.

Water filtration and treatment systems

Evaluate or certify your water filtration and treatment systems, whether they are designed for municipal, point-of-use, or point-of-entry applications click this link.

As a world leader in the evaluation and certification of drinking water treatment technologies, Quality water lab helps prove that their water filtration system meets structural and safety requirements, as well as contaminant reduction requirements.

Water filtration system and assessment services apply to a wide variety of water treatment and filtration systems, including:

  • General water filtration devices
  • reverse osmosis systems
  • distillation systems
  • shower filters
  • Ultraviolet (UV) Systems
  • water softeners


  • Special filters for the reduction of minerals.
  • Hardness reduction by ion exchange.
  • Ultrafiltration in reverse osmosis.

Water Filtration System is best for:

A water filtration system solves the particular needs of each client related to filtration depending on the characteristics of the input water or the final water requirements.

1 Prefiltration

Filtration is understood as protection of Nanofiltration Systems, Reverse Osmosis , Water Purification Equipment , machines and processes that require water free of suspended solids.

– Online Sediment Filters : 10 and 20 inch online filter housings (portafilters) from 0.35 to 20 microns, with automatic purge system for small flows.

– High-capacity Automatic Filters: Suitable for removing suspended solids at high flow rates. They have an automatic self-cleaning system.

2 Descaling

Hard water softening is used as a single treatment or prior to other subsequent purification stages.

It is used as protection for any hydraulic system susceptible to precipitating salts due to the high hardness of the water:

  •   Feeding of machines and industrial processes
  •   Feeding of boilers
  •   Feeding of water purification systems

The hardness of the water is mainly determined by the amount of Calcium and Magnesium salts. Among the most pronounced effects of hard water is the formation of salt crusts that are deposited in the facilities, causing blockages and malfunctions.

To eliminate the hardness of the water, softeners with ionic exchange resin are used , with automatic operation. The softener is sized according to the hardness of the water and the volume to be treated:

  •  Compact softeners: Capacity between 0.2 – 1.2 m 3 /h.
  • Softeners with 2 bodies and Duplex, for high flows (up to 25 m 3 /h )

Hardness Measurement: Water Hardness Measurement Kit . It allows control of the degree of softening reached or the hardness of the water to be treated.

3 Dechlorination

Production of dechlorinated water with a minimum content of organic matter .

Protection of reverse osmosis systems and other water purification equipment

–          Online filters  (10 and 20 inches)

–          High capacity automatic filter (0.5 – 20 m 3 /h)

Chlorine removal filter for high filtration volumes, with automatic head for self-cleaning.

4 Special filtration

Filters with specific applications for laboratory and for processes

a. microfiltration

b. ultrafiltration

c. Final filters (0.45 µm, 0.2 µm)

d. nanofiltration

a. microfiltration

Filtration through membranes with a pore size between 0.1 µm  – 10 µm

Its application is indicated to clarify water with particles larger than 0.1 µm and to eliminate bacteria.

They are used in different fields, such as:

– Sterilization of beverages and pharmaceutical products.

– Clarification of beverages.

– Treatment of effluents, as pretreatment prior to nanofiltration and reverse osmosis systems.

b. ultrafiltration

Ultrafiltration is a filtration stage superior to Microfiltration, using membranes with a pore size between 0.01 – 0.1 µm.

Ultrafiltration has numerous applications:

– Industrial: Clarification of liquids and elimination of bacteria from all kinds of industrial processes.

– Prefiltration: It is used as a preliminary treatment before nanofiltration and reverse osmosis systems, prolonging their life.

– Elimination of DNAses, Nucleases and Endotoxins: There are special ultrafilters for the elimination of these substances from the final water produced by purification systems, when it is a requirement for certain experimental techniques.

c. Final filters 0.45 – 0.2 µm

Filters for use as final filtration before dispensing purified water.

When a final water has microbiological requirements, they are used.

d. nanofiltration

Nanofiltration systems are applicable for water purification, with partial removal of dissolved salts (water softening, COD reduction, removal of micropollutants, removal of nitrates, sulfates, pesticides and other organic molecules) and also as a preliminary step to reverse osmosis systems.

It has the advantage of working with low pressures and with good performance, being, on some occasions, an alternative to assess against reverse osmosis).

Unfortunately, the quality of tap water in our country in most cases leaves much to be desired. Therefore, before use, it should be cleaned of harmful impurities. The issue of water quality for owners of country houses is even more relevant – when organizing an effective water treatment system for such housing, it should be borne in mind that water of varying degrees of purity may be needed for various domestic purposes. The composition of the water filtration system for a country house is determined taking into account the quantitative and qualitative indicators of harmful impurities in the source.