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Potabilisation · Desalination · DWTP

Drinking water treatment plant

Several of our applications are linked to water treatment, both in drinking water plants and in desalination plants for urban and industrial supply. Our equipment is found in odour removal installations and gas scrubbers, and in pumps for corrosive products.

Not only in pretreatment, filtration or secondary treatment, but also for filtering chlorine residuals in water potabilisation, using suitable adsorbents, chemical routes, activated carbon and high-grade adsorbents.

70+

Years of experience in the sector

4

Product lines for DWTP

100%

In-house engineering and manufacturing

5

Continents with installations

Corrosion-resistant equipment for the drinking-water cycle

Drinking water and desalination plants handle aggressive chemical reagents that require equipment manufactured in corrosion-resistant plastic materials.

potable water treatment plant with TECNIUM equipment

Solutions for every treatment phase

Drinking water treatment plants use a wide range of chemical reagents for coagulation, flocculation, disinfection and pH adjustment. TECNIUM provides the equipment required to store, dose and pump these reagents safely, as well as to treat the emissions generated in the process.

  • Storage and dosing of reagents: NaOCl, FeCl₃, H₂SO₄, NaOH, Cl₂
  • Pumping of corrosive reagents with corrosion-resistant and magnetic-drive pumps
  • Removal of chlorine residuals using TECNIUM-CHEM gas scrubbers
  • Ventilation and air extraction in chlorination and storage areas
  • Equipment manufactured in PP, PVC, PVDF, E-CTFE and FRP

A single supplier for DWTPs

TECNIUM acts as a single supplier for drinking water treatment plants, providing everything from reagent storage tanks and dosing pumps through to gas scrubbers for chlorine abatement and corrosion-resistant fans.

Our engineering department assesses the needs of each plant and selects the optimal materials and configurations to deliver maximum durability and safety in contact with the reagents used in drinking water treatment.

TECNIUM reagent tanks and dosing systems at a DWTP

Reagent storage for drinking water treatment

TECNIUM's main application in drinking water plants is the safe storage of the chemical reagents used in the water treatment process.

Typical chemical products in potabilisation

Our equipment is designed for the safe handling of the reagents used in the different stages of drinking water treatment.

NaOCl
Sodium hypochlorite
Cl₂
Chlorine gas
FeCl₃
Ferric chloride
Al₂(SO₄)₃
Aluminium sulphate
NaOH
Caustic soda
H₂SO₄
Sulphuric acid
PAC
Polyaluminium chloride
KMnO₄
Potassium permanganate

Chlorine and gas removal in DWTPs

For drinking water plants, TECNIUM applies its chemical absorption technology to remove chlorine residuals and other gases generated in the process.

Corrosion-resistant pumps for drinking water plants

Plastic pumps for the dosing and transfer of chemical reagents in every stage of the drinking water treatment process.

vertical sump pump

Vertical sump pumps

Wide range in plastic materials, cantilever shaft allowing dry running, indicated for loaded liquids.

600 m³/h100 mwc
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process pump

Process pumps

Standardised to EN 22858 / ISO 2858. Robust pumps for continuous duty. Wide range of materials and mechanical seals.

1,500 m³/h120 mwc
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motor pump

Motor pumps

Close-coupled. Hydraulic performance and dimensions in accordance with EN 22858. An economical and reliable solution.

250 m³/h100 mwc
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magnetic-drive pump

Magnetic-drive pumps

Magnetic-coupling pumps, zero leakage. Flow rates up to 90 m³/h and heads up to 60 mwc. Ideal for reagent dosing.

90 m³/h60 mwc
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Tanks and vessels for DWTP reagents

Tanks in thermoplastic materials and FRP for the safe storage of all reagents used in the potabilisation process.

plastic / FRP tanks for reagents in a drinking water treatment plant

Plastic / FRP tanks

Vertical tanks, bunds, cisterns and horizontal vessels in plastic materials (PP, PE, PVC, PVDF, E-CTFE) and FRP. Capacities up to 200,000 litres. Custom-equipped in accordance with EN and APQ standards.

PPPVCPVDFFRP
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mixers, tanks and clarifiers

Mixers, tanks, reactors and platforms

Custom-built equipment for the preparation and mixing of reagents. Mixers and clarifiers manufactured in high-performance polyethylene and polypropylene.

PEPPCustom
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Corrosion-resistant fans for air extraction

Plastic fans for air extraction in chlorination zones, reagent storage areas and confined spaces.

pulley-and-belt fan

Pulley-and-belt coupling

Corrosion-resistant plastic fans for medium-high pressure.

120,000 m³/h10,000 Pa
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direct-coupling fan

Direct coupling

Corrosion-resistant plastic fans for medium-low pressure.

40,000 m³/h4,500 Pa
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The advantages of working with TECNIUM in potabilisation

Decades of experience supplying corrosion-resistant equipment for drinking water and desalination plants.

Single supplier

Tanks, pumps, gas scrubbers and fans: all the corrosion-resistant equipment for your DWTP from a single supplier.

Guaranteed chemical compatibility

Selection of the optimal material (PP, PVC, PVDF, E-CTFE, FRP) for each reagent and process condition, ensuring maximum resistance and durability.

Standards and certification

Equipment designed and manufactured to EN, ASTM, ASME and APQ standards, with complete documentation and material traceability.

Zero leakage with magnetic pumps

Sealless magnetic-drive pumps for the safe dosing of reagents, eliminating any leakage risk.

Over 70 years of experience

Founded in 1957 in Manresa, Barcelona. Decades of experience in the water sector with references across the five continents.

18,000 m² manufacturing

Vertically integrated production with engineering, machining, plastic welding, assembly and quality control in our own facility.

Common questions about equipment for DWTPs

Excess chlorine gas (Cl₂) generated in the chlorination areas of drinking water plants is removed using TECNIUM-CHEM gas scrubbers, which use chemical absorption with alkaline solutions (NaOH) to neutralise the chlorine. TECNIUM also supplies emergency systems to deal with possible chlorine gas leaks in chlorination rooms.

TECNIUM magnetic-drive pumps use a magnetic coupling instead of a conventional mechanical seal, completely eliminating any possibility of leakage. This makes them ideal for the dosing of hazardous chemical reagents in drinking water plants, where safety is a priority and no leaks of products such as sulphuric acid, hypochlorite or caustic soda can be tolerated.

TECNIUM tanks for potabilisation reagents are manufactured in a wide range of plastic materials selected on the basis of chemical compatibility with each reagent: polypropylene (PP), polyethylene (PE), PVC, PVDF, E-CTFE and glass-fibre reinforced plastic (FRP). The material is selected on the basis of chemical resistance, service temperature and applicable standards (EN, APQ).

Yes. TECNIUM supplies equipment for desalination plants, both reverse osmosis and electrodialysis. Reagent tanks, corrosion-resistant pumps for handling pre-treatment and post-treatment chemicals, fans are common TECNIUM applications in this type of facility.

Do you need equipment for your drinking water plant?

Our engineering team will select the optimal equipment and materials for the process conditions of your drinking water or desalination plant.