inDENSE®
Smart sludge selection for maximum treatment capacity
Due to climate change, population growth, and increasing industrial loads, wastewater treatment plants are under growing pressure. Both hydraulic capacity and effluent quality must be continuously improved—preferably without major and costly civil upgrades.
inDENSE® offers an innovative solution.
This patented technology structurally reduces the sludge volume index (SVI) through continuous sludge selection. This directly results in improved sludge settling and makes it possible to significantly increase both the biological and hydraulic capacity of existing plants—without major civil modifications.
How does inDENSE® work?
The process starts with the controlled feeding of return activated sludge into hydrocyclones. Inside the cyclones, centrifugal forces separate the sludge into two fractions:
This continuous selection ensures that only the best-settling sludge—such as phosphate-accumulating organisms—remains active in the process.
Result: stable and efficient treatment
The structurally lower SVI creates a stable and robust treatment process:
The difference is clearly visible: with inDENSE®, sludge quality is continuously optimized, resulting in better performance and a lower risk of sludge washout.
Plug & Play integration
inDENSE® is designed for easy implementation in existing installations. The compact system can be integrated with minimal modifications, delivering rapid results without long downtime or major investments.
Benefits of inDENSE®:
