Assess
Assess water analysis and saturation risk
Scale & deposits
Maintain heat transfer, flow and efficiency.
Control mineral deposits in cooling water, membranes and process installations.
From problem to cause
Investigate the mechanism first
Deposit risk is determined by concentration, pH, temperature, residence time, local evaporation and mixing. The best solution combines chemistry with process settings.
Signals in the installation
- Rising pressure drop or pump load
- Declining heat transfer
- White or hard deposits
- Progressively shorter cleaning intervals
Approach
From diagnosis to control
Analyse
Determine critical temperature and concentration zones
Implement
Select chemistry and operating limits
Verify
Verify performance using trends and inspection
Root-cause diagnosis
Similar symptoms can have different causes
We therefore link visible signs to water chemistry, process data, materials and the location where the problem occurs in the installation.
Carbonate scale
Hardness, alkalinity, pH, temperature and cycles of concentration jointly determine the risk of carbonate scale.
Silica, sulphate or other mineral scale
Not every hard deposit is carbonate scale. Its composition determines the appropriate prevention and cleaning method.
Suspended solids and corrosion products
Particles can settle, consume inhibitor and provide a base for further fouling.
Treatment route
Interventions matched to the mechanism
- Set controllable limits for recovery, cycles of concentration, pH and local temperature
- Select an antiscalant or dispersant based on the actual water chemistry
- Improve pretreatment, filtration or blowdown control when particle or salt loading requires it
- Clean existing deposits only with a method compatible with the materials and process
Frequently asked questions
Technical choices require system context
These answers provide initial direction. The final approach follows from the installation data and product documentation.
Is every white deposit calcium carbonate?
No. Silica, calcium phosphate, gypsum, metal oxides and combinations with organic matter can also be light in colour. Analysis prevents the wrong cleaning choice.
Can more antiscalant remove existing deposits?
An antiscalant is primarily preventive. Existing deposits often require separate, controlled cleaning and correction of the cause.
Why does scale often form in a heat exchanger?
Local wall temperature, the concentration boundary layer and evaporation may be less favourable there than in a bulk sample of the circulating water.
A specific challenge?
Discuss your water system with a specialist.
Briefly describe what you observe in the installation. Together, we will determine the most logical first step.