Sludge Reduction & Drying Systems

BLUEWIN’s ELODE and NVD/EVD systems offer a next-generation solution for sludge reduction and drying by combining electro-osmosis, electro-permeation, and electrophoresis technologies.

Unlike conventional mechanical dewatering systems, they effectively target the challenging 60–80% “glue zone” moisture range, reducing sludge to below 60% within just one minute and 30 seconds. NVD operates with a natural ventilation mechanism — without heat or combustion — enabling fully automated 24-hour drying and achieving a final moisture content of under 10% (90% DS).

ELODE uses high-frequency DC current to break down cell structures and remove free water from sludge. Its integrated Sludge Feeding Device (SFD) automatically adjusts pressure and belt speed based on changes in viscosity, conductivity, and moisture.

With energy consumption as low as 0.25–0.45 kWh per liter of water removed, the system delivers over 70% energy savings compared to thermal dryers. The resulting sludge cake has a high calorific value of 2,500–3,500 kcal/kg, making it suitable for RDF and fuel reuse.

The modular design allows for easy installation and maintenance, and it can be integrated upstream of belt, drum, film, or rotary dryers to enhance system-wide efficiency. With over 300 successful sludge applications and CE/UL certifications, this eco-friendly solution is ideal for high-organic sludge from municipal, livestock, dyeing, food, and pharmaceutical industries.