Process water
Crushing and wash water carry solids and hardness.
For your sector
Water Treatment at a Mine
At a mine, water cools the equipment and moves through the process. Dust, hardness and reuse concentrate the water fast.
Scale in a cooling tower · Corrosion in a closed loop · Scale and fouling on the membrane · What is an antiscalant
Where the water is used
Cooling tower
Evaporation raises hardness. Dust sticks to the fill.
Closed loop
Closed cooling of heavy equipment replaces little water. Corrosion and sludge block the passage.
Reuse
Returned water is saltier. If a membrane is used, saturation rises.
Risks specific to this sector
High solids
Suspended sludge sticks to the hot surface and to the fill.
High hardness
Hard water speeds scale in the tower and in the exchanger.
Heavy equipment
If cooling stops, the machine overheats and stops.
A remote site
If the water analysis is late, scale and corrosion grow before they are seen. Set the program for the site conditions.
What damage does it cause?
Signs
- Tower water becomes very cloudy, or sludge is visible on the fill.
- Equipment temperature rises.
- Closed-loop water turns brown, or the flow falls.
- The conductivity of reused water rises fast.
How do you solve it?
Tower and dispersant
The scale chemical and the dispersant work together. Sludge does not leave with a scale inhibitor alone.
Closed loop
Put a corrosion inhibitor in the equipment circuit. Flush brown water first.
Hardness
Read the hardness of the feed water and the tower water on a regular schedule. Open blowdown from this data.
Recovery with a membrane
If reverse osmosis is used, select the antiscalant from the projection report. High hardness needs the more concentrated product.
Our related products
The tower chemical, the dispersant, the closed loop and the antiscalant are separate jobs. The dosage is set from the water analysis. NSF approval applies only to C scalant 2005.
Ck 220
Stabilized Phosphate Cooling Water Treatment Chemical
It decreases the risk of scaling and corrosion in cooling towers.
Ck 180
Cooling Water Dispersant
It is a dispersant for cooling towers. It prevents suspended particles and sludge from sticking to the surface.
Ck 13
Nitrite-Based Corrosion Inhibitor for Closed-Loop Heating and Cooling Systems – Copper Protection
It protects copper surfaces against corrosion in closed-loop heating and cooling.
C scalant 2005
NSF-approved antiscalant for drinking water
It is a high-concentration antiscalant. It also protects the reverse osmosis membrane at high hardness. The product is NSF approved.
Why Cemkimsan?
Cemkimsan makes the chemical in its own plant and ships it to the site. The mine program is set from the water analysis.
Frequently asked questions
What do you use if mine tower water is very muddy?
Ck 220 decreases the scale and corrosion risk. Ck 180 prevents suspended particles and sludge from sticking to the surface. The dispersant is necessary for sludge. Set blowdown from conductivity and hardness.
How do you protect closed cooling of heavy equipment?
Ck 13 protects the copper surface in closed-loop heating and cooling. If the water turns brown, remove the collected dirt first.
Which antiscalant do you select if reused water goes to a membrane?
At high hardness, C scalant 2005 protects the membrane. The product is NSF approved and high concentration. The dosage is set from the projection report.
Why is the program at a remote site tied to the analysis?
Dust and hardness change from site to site. The same dose does not fit every water. If the analysis is late, scale grows before it is seen.
We read your mine water with you
Send the tower water analysis and the reuse water analysis. Our technical team will reply on the tower, the dispersant and the antiscalant.
We reply to quote requests within 12 hours.