WASTEWATER

Castolin Eutectic provides effective solutions for the repair of defects in secondary settlement tanks using advanced composite technology. This approach ensures minimal machine downtime, allowing for efficient restoration of critical components. Our composite technology not only repairs the damaged areas but also strengthens them against future wear and tear, ensuring long-lasting performance. Additionally, by utilizing our specialized materials, you can increase the maintenance intervals of your equipment, thus reducing overall operational costs. This method has been proven to provide durable protection even in environments with heavy cyclic loading and abrasive conditions.

Pump impeller reconstruction and protection are critical due to the vulnerability of impellers to wear. Castolin Eutectic offers an advanced solution for the regeneration and protection of pump impellers using composite technologies. Pumps at the inlet work, for example, handle raw sewage with abrasive materials like grit, sand, and rag, causing significant wear and requiring regular maintenance. Additionally, fine sands in the sludge can lead to premature wear of impellers and sludge pump bodies, reducing their efficiency. Our solution involves rebuilding worn cast iron impellers to their original geometry and reinforcing them with hardwearing coatings, extending the service life by up to five years. This method ensures the equipment continues to operate without loss of flow rate or energy performance.

Pumps are highly vulnerable to rapid wear due to the combination of erosion and corrosion, particularly affecting rotors and casings. Castolin Eutectic provides an effective solution through the regeneration and protection of these critical components using advanced composite technologies. Our approach not only restores the original geometry of worn parts but also strengthens them against future damage, extending their operational lifespan. By applying these composite technologies, pump performance is improved, maintenance costs are reduced, and the need for frequent replacements is minimized. This solution ensures that your pumps remain efficient and durable even in the most abrasive and corrosive environments.

Grating elements are highly susceptible to erosion wear due to constant exposure to harsh environments. Castolin Eutectic offers a specialized solution by applying abrasion-resistant coatings using advanced thermal spraying technology. This process not only protects the grating elements from further erosion but also significantly extends their lifespan in demanding industrial conditions. By utilizing these coatings, operators can reduce maintenance frequency and improve the overall durability of their systems. Our thermal spraying technology ensures a tough, protective layer that shields the surface, helping to maintain efficiency and minimize operational downtime.

Other areas where concrete needs regular maintenance is inside primary and secondary settlement tanks, aeration lanes and channels. These experience significant loss of concrete through the development of cracks and cavities. This creates risk for the plant operator as unattended cracks could lead to untreated sewage leaching through the tank walls into the environment and eventually contaminating groundwater. Cracks and cavities form due to chemical attack by acids and other compounds in effluent, which can be made worse in some locations inside the tanks by eddy currents.  Once a crack has initiated, it will grow longer and deeper.

The repair process may call for a combination of different repair compounds, but one solution is MeCaFix 140, a concrete resurfacing and repair compound that is designed for non-structural surface defects. This Kevlar® reinforced polymer compound is moisture tolerant and imparts excellent adhesion to cold and damp concrete. This is a two-part system, 100% solids, solvent free, zero VOCs technology taking the shape of a non-sagging paste optimal for vertical and overhead applications. The repair material can be applied by trowel, flexible spreaders or grout pump.

Feeding screws often face rapid degradation in highly erosive and corrosive environments, with the leading edges particularly vulnerable to wear. Castolin Eutectic offers an effective solution using Flame Spray technology combined with MeCaTec to restore and protect these critical components. Our advanced coating application not only shields the feeding screw from further erosion and corrosion but also reinforces the surface for enhanced durability and performance. This process extends the operational life of the screw, reduces maintenance intervals, and ensures more efficient operation in harsh industrial environments. By applying Flame Spray and MeCaTec, you can minimize equipment downtime, improve productivity, and protect against severe wear in challenging conditions.