Industrial Water Treatment System 5-10 Tonnes/Day – Sand, Carbon, Softening and UV

The Industrial Water Treatment System brings four complementary units together in a single installation.

The Industrial Water Treatment System suits sites that use water in the 5–10 tonne a day range and where sediment, chlorine, hardness and a microbiological load occur together.

Factories & WorkshopsHotels & AccommodationTank Water LinesHalls of Residence & Guest HousesSites Using Well WaterIndustrial KitchensLaundriesProcess & Utility Water Lines

The Industrial Water Treatment System uses a different process at each stage: mechanical capture in the quartz sand and anthracite bed, adsorption in the carbon, ion exchange in the resin and, at the final stage, ultraviolet light. How granular activated carbon and cation-exchange softening work is also explained in the US Environmental Protection Agency’s (EPA) overview of treatment technologies.

1. 1

   Pre-Filter and Multimedia Sand

   Raw water passes through the cartridge pre-filter at the inlet, enters the multimedia sand unit and travels down through the bed. The anthracite on top holds back coarse particles and the fine-grained quartz sand below holds back smaller suspended solids; cleared of turbidity, the water moves on to the next stage.

2. 2

   Activated Carbon Stage

   The water passes through the granular carbon bed in the 1035 vessel. Chlorine, odour and organic matter are adsorbed, so this load is held back before it reaches the softening resin.

3. 3

   Maxi Cabinet Softening

   The cationic resin holds back calcium and magnesium ions, releasing sodium in their place and lowering the hardness. When the resin is exhausted it is renewed with brine, and the captured hardness ions go to drain.

4. 4

   21 Watt UV Stage

   The now-clear water passes through the single-lamp 21 watt UV unit, where the light disrupts the structure of microorganisms, renders them inactive and reduces microbiological risk.

5. 5

   It Goes to the Line or the Tank

   Having passed through the four stages, the water goes to the plumbing or the storage tank; the sand and carbon stages renew themselves by automatic backwash and the softening stage by regeneration.

When choosing the Industrial Water Treatment System, the daily requirement, peak flow, the water analysis and the installation conditions should be assessed together.

The Industrial Water Treatment System runs steadily when each stage gets its own maintenance.

• The pre-filter cartridge at the inlet should be checked regularly and replaced when it becomes dirty.
• On the sand and carbon stages, the backwash period should be set from the contamination load of the water, with a shorter interval where contamination is heavy.
• The pressure differential between inlet and outlet should be monitored; a marked drop can point to blockage in the bed. The drain line should be kept clear.
• The activated carbon charge becomes saturated over time; when the smell of chlorine returns, it needs renewing.
• Check the softener’s salt reservoir regularly; when the salt runs out, regeneration does not happen. Each regeneration uses roughly 1.5–3 kg of salt.
• A UV lamp loses intensity even while it continues to light and must be renewed periodically; if limescale or sediment builds up on the quartz sleeve the light cannot reach the water, so the sleeve must be cleaned regularly.