Enviroflex GmbH – Advanced Solutions for Sludge Thickening & Dewatering

Enviroflex GmbH, based in Austria, is a leading provider of innovative solid-liquid separation technologies. With years of expertise in the field, we specialize in complete, tailor-made solutions for municipal and industrial sludge treatment—from primary thickening to final dewatering.

Our current catalogue focuses exclusively on our high-performance belt presses and belt thickeners, engineered to deliver reliable, efficient, and cost-effective results for a wide range of sludge types.

Product Highlights

• Gravity Belt Thickeners: Ideal for thickening dilute sludge (e.g., primary or secondary sludge) to a manageable consistency, minimizing volume before further treatment or disposal.
• Belt Filter Presses: Designed for continuous dewatering of thickened or illiquid sludge, producing a dry cake with high solids content.
• Integrated Systems: Combined units with both belt thickener and stages in one frame—perfect for thin sludges like waste activated sludge (WAS), offering a compact and fully automated process.

Key Advantages of Enviroflex Belt Technology

• ✅ High Capture Rate – Advanced belt and roller design ensures minimal solids loss in filtrate (typically <1%), protecting downstream systems and optimizing efficiency.
• ✅ High Dry Solids Content (DS%) – Precision-engineered pressure and shear zones, including high-pressure „tension“ rollers, achieve excellent cake dryness, even with difficult sludges.
• ✅ Low Wash Water Consumption – Efficient belt cleaning systems reduce water use and operational costs.
• ✅ Wide Belt Selection – High-quality belts available in various weave patterns, air permeability, and chemical resistance grades, customized for specific sludge characteristics.
• ✅ Robust, Low-Maintenance Design – Built for long service life with corrosion-resistant materials and minimized mechanical complexity.
• ✅ Flexible Operation – Adjustable belt speed, pressure zones, and polymer dosing for optimized performance under varying sludge loads.
• ✅ Fully Automated Control Systems – Integrated with user-friendly HMIs and optional SCADA interfaces for remote monitoring and process optimization.
• ✅ Compact Footprint – Space-saving designs available for containerized and
• retrofit applications.

Complete System Integration

In addition to manufacturing the belt thickening and dewatering units, we supply and integrate the full process chain:

• Sludge feed tanks and pumps
• Polymer preparation and dosing units (powder or emulsion)
• Polymer mixing and maturation tanks
• Sludge conveyors (screw, belt, shaftless)
• Filtrate handling systems
• Electrical control panels and automation (with CE compliance and ISO-certified production)

🔧 Although this catalogue focuses on •          Integrated Systems: Combined units with both belt thickener and belt press stages in one frame, we also offer other belt presses and belt thickener alone as well as other sludge dewatering systems such as multi-disk screw presses for compact and low-speed operations. Contact us for custom configurations.