- Integrated portfolio from coarse solids to high-quality reuse water
- Resource‑positive design maximizes biogas, phosphorus and FOG valorization
- Modular or permanent builds: containerized units for pilot or rapid deployment, full‑scale lines for long‑term operation
- Global support with lifecycle services
Water reuse and resource recovery
Recover biogas, phosphorus, Fats, Oils and Grease (FOG) and metals while producing reuse‑quality water. We deliver complete equipment trains for industrial water re‑use and resource recovery.
Turning wastewater from liability to asset
Advances in anaerobic digestion wastewater treatment, tertiary filtration and nutrient capture allow industry to convert effluent into clean water and valuable by‑products from biogas and bio‑methane to recoverable phosphorus and metals. We integrate screening, pumping, mixing, separation and micro-filtration equipment so your plant achieves high‑quality effluent for further Minimum Liquid Discharge (MLD) / Zero Liquid Discharge (ZLD) wastewater treatment or on‑site re‑use while extracting energy and resources along the way.
Phosphorus precipitation and capture
Struvite crystallization (magnesium‑ammonium phosphate hexahydrate, MgNH₄PO₄·6H₂O) transforms dissolved phosphate into a fertilizer‑grade crystal. It is most cost‑effective on industrial side streams rich in ammonium and phosphate, such as:
- Meat and poultry rendering digestate
- Dairy and brewery sludge liquors
- Potato or vegetable processing wash waters
- Pulp and paper recycle‑mill side streams
Dosing skids introduce magnesium salts; static or pipe mixers deliver 1 : 1 : 1 Mg²⁺ : NH₄⁺ : PO₄³⁻ blending, and low‑shear flocculators allow crystals to grow. Lamella clarifiers fitted with Sulzer Zickert scrapers harvest the struvite, which is then dewatered by belt or disc presses. Economics generally break even above ~100 m³ /d, depending on phosphorus load and local fertilizer pricing.
FOG harvesting for energy
Dissolved air flotation effectively removes Fats, Oils and Grease (FOG) from food and beverage wastewater. Skimmed FOG streams, typically 4–6 % dry matter (DM), are valuable for digestion in anaerobic reactors where their high calorific value significantly boosts biogas yield and overall plant energy recovery. Alternatively, recovered FOG can be sold to rendering for conversion into value-added products.
High-solids feed for anaerobic digesters
Grinders refine screened solids, e.g. viscera from meat, fish, or poultry processing, boosting surface area for rapid digestion and gas release. Blending tanks fitted with SALOMIX™ / Scaba agitators maintain uniform suspension and consistent feed quality, ensuring all solids remain mobile and ready for transfer to anaerobic digestion. Progressive‑cavity and high‑solids pumps then move material to the anaerobic digester for wastewater treatment.
Mechanical dewatering and containerized solutions
After digestion, belt or multi‑disc presses raise cake up to and in some cases beyond 20% Dry Solids (DS). For seasonal or remote sites, containerized dewatering units with roll‑off sludge bags retain solids and return filtrate to process simplifying logistics and treatment while enabling future compliance and water reuse.
Tertiary polishing for re-use or ZLD
Cloth, drum, disc, and sand filters remove particulates down to 5–10 microns in size. This produces a high-quality filtrate suitable for washing, irrigation, or as feed for downstream quaternary treatments such as membrane filtration, Advanced disinfection and Oxidation Processes (AOP), or zero-liquid-discharge schemes.
Metals recovery in surface-finishing and mining
Oxidation and precise pH adjustment are delivered via efficient, optimized mixing, using a choice of corrosion- and abrasion-resistant materials to suit demanding industrial environments. Via these we enable efficient precipitation of dissolved metals from process streams. These newly formed solids are then reliably separated using sedimentation, flotation, or advanced filtration, paving the way for resource recovery, metal recycling, or compliant, environmentally responsible disposal.
