Signs Your Systems Need Scale Inhibitor Treatment
Mineral scale builds gradually. By the time it’s visible, it has already been affecting your system’s performance. These are the signs that scale is taking hold.
Our custom scale treatments help protect your assets against mineral deposit build-up and the corrosion that follows.
Scale build-up in mining and industrial water systems reduces heat transfer, increases cleaning cycles, and restricts flow. If these problems are left unchecked, your systems can experience reduced efficiency, equipment damage, and unplanned shutdowns.
At WTS, we customise water scale inhibitor treatments to assist cost-effective asset protection and operational security. We’ve applied these advanced treatments across a range of cooling towers, brine and mineral concentrators, reverse osmosis (RO) plants, and wastewater systems. You can trust our technical experience to help tailor the scale prevention and corrosion control treatment required for your systems.
1. Rising Energy Consumption and Heat Transfer Loss
Scale deposits on heat exchanger and cooling tower surfaces act as insulation, forcing your system to work harder to move the same amount of heat. Each millimetre of scale build-up measurably increases energy demand and thermal inefficiency.
2. Dropping Flow Rates and Pressure Differentials
Mineral deposits narrow pipe internals and restrict distribution systems over time. Falling flow rates and rising pressure differentials across pipework and process loops are reliable indicators of progressive scale accumulation.
3. Cleaning Cycles and Shutdowns Increasing in Frequency
A system requiring more frequent chemical cleans or unplanned shutdowns to manage deposits is signalling that scale formation is outpacing control. Without a targeted scale inhibitor water treatment program, remediation costs compound and equipment life shortens.
Why Scale Forms
When water evaporates or is concentrated, minerals like calcium, magnesium, barium, iron, sulphate, phosphate, and silica can exceed solubility limits and crystallise (scale) on equipment. The potential for scale formation is affected by many factors, such as pH, temperature, flowrate, pressure, solubility products for various ionic species and reaction equilibria.
Here’s how scale forms in various applications:
- Higher concentration cycles and temperatures in heat exchangers increase the risk of mineral deposits in cooling towers.
- In filtration systems, scale accumulation on filter media increases pressure drop, shortens run times, and forces more frequent backwashing.
- In RO plants, scaling often occurs at the membrane interface due to concentration polarisation, accelerating precipitation.
Where Scale Inhibitors are Used
- Recirculating Cooling Towers and Heat Exchangers: Concentration cycles and heat create ideal conditions for mineral deposits. Scale inhibitor treatments protect cooling tower and heat exchanger circuits from the build-up that reduces heat transfer and drives up energy costs.
- Reverse Osmosis and Nanofiltration Systems: Minerals concentrate at the membrane surface during filtration. Antiscalants are dosed into the feed stream to keep membranes clean. This maintains water recovery and extends membrane life.
- Brine and Mineral Concentrators: High-salinity process streams carry an elevated mineral load that scales quickly. Targeted inhibitor chemistry keeps heat exchanger surfaces and process pipework clear across concentrator circuits.
- Process Water Loops, Spray Bars and Filtration Systems: Scale inhibitor treatments are applied across CHPPs, mineral processing, and water reuse circuits. Protecting pipework, spray bars, and filter media from deposit-driven flow restriction and damage.
Site-Specific Water Scale Treatments: Our Approach and Solutions
WTS applies water chemistry analysis, predictive modelling, and custom formulations to develop solutions that prevent scale across mining, processing, reverse osmosis (RO), and cooling water systems.
Our approach begins with a detailed water analysis and system audit to identify scaling risks. We then apply advanced modelling tools to predict scale formation and select the most effective inhibitor chemistry. Our dosing programs account for injection points across the treatment train, including scale inhibitor filter protection and pre-membrane antiscalant application, ensuring chemistry reaches the right point at the right concentration.
Scale Treatment Results You Can Expect
- Reliable scale control across major inorganic scales and effective dosing management
- Improved uptime, process stability, reduced blockages and cleaning
- Cost efficiency through targeted chemistry, verified modelling and secure supply
Speak to the experts in cost-effective asset protection
How we solve real life problems
Scale Control in Coal Handling Prep Plant
Problem: Severe scaling in process water circuits causing frequent shutdowns and high maintenance costs.
Solution: Implemented a customised phosphonate-polymer blend (WTS-4-1100) and optimised dosing strategy based on adsorption testing and system modelling.
Benefits: Reduced scale deposition, improved system reliability, and extended equipment life with minimal downtime.
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Antiscalant Modelling and Supply Chain Management
Problem: Scaling in reverse osmosis units leading to reduced water recovery and operational inefficiencies.
Solution: Conducted antiscalant modelling using French Creek software, selected WTS 4-OSMSO4 inhibitor, and developed a supply chain plan to ensure continuous protection.
Benefits: Prevented scaling, maintained optimal RO performance, and avoided costly system failures.
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Prevention of Pipe Failures at Power Station
Problem: Scaling in ash slurry pipelines, resulting in several pipe failures.
Solution: Bespoke dosing systems; one for a biocide to control any potential microbiological issues, and one for a corrosion & scale inhibitor.
Benefits: Asset protection through applied engineered treatment solution and ongoing monitoring, eliminating failures.
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High Temperature Brine Concentrator Heat Exchanger
Problem: Elevated temperatures (95ºC) causing severe scaling in process water circuits causing frequent shutdowns, chemical cleaning and maintenance costs.
Solution: Reviewed the water chemistry, designed, blended, modelled and lab tested a number of antiscalants then selected the most effective to deal with the high temperature operating environment.
Benefits: Reduced scale deposition, improved system reliability, and extended equipment life with minimal downtime.
Ready to solve your scale and corrosion challenges?
Contact us to book a scale risk assessment or request a customised scale inhibitor solution.
