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Containerized leachate treatment plant at municipal landfill

Leachate Treatment

ENVIRONMENT

Leachate — water infiltrating through the waste mass — carries high concentrations of organic compounds, ammonium, heavy metals and dissolved salts. Treatment at source is the only reliable approach.

Klarwin designs, builds and operates fully automated treatment installations — containerized or fixed, modular and scalable — with real-time monitoring and remote diagnostics. Over 6.5 million cubic meters treated across 100+ sites — the most extensive leachate management experience in Romania and CEE.

Multi-stage leachate treatment installation — biological, physico-chemical and membrane filtration

Multi-Stage Treatment Process

Every installation is designed from actual leachate analysis — no standard templates. Klarwin integrates five treatment stages, each controlled by Siemens PLC/SCADA with automatic parameter adjustment.

Mechanical pre-treatment and flow equalization
Biological treatment — nitrification/denitrification, optional MBR
Physico-chemical treatment — automatic dosing, pH correction, heavy metal precipitation
Advanced membrane filtration — UF + RO, separation efficiency >95%
Concentrate management — addressed by DyVaR technology
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DT Reverse Osmosis — Grimm & Wulff

For high-salinity and high-organic-load leachate, Klarwin integrates Disc Tube Reverse Osmosis technology from Grimm & Wulff Hamburg — a long-term technology partnership built on the Triple Win principle. A proven system with over 2,000 installations worldwide, DTRO handles aggressive compositions that conventional spiral-wound RO membranes cannot process.

Containerized units: 1–8 m³/h capacity
Recovery rate: 70–75%
Uptime guarantee: > 90%
Continuous operation: 8,000+ hours demonstrated
Membrane lifespan: up to 10 years
Equipment lifespan: 20 years
International references including: Hungary, Republic of Moldova, Bosnia, Slovakia and Slovenia
DTRO disc tube reverse osmosis unit — Grimm & Wulff Hamburg technology
Salttech DyVaR concentrate reduction — patented single-step separation technology

Concentrate Reduction — DyVaR by Salttech

Reverse osmosis produces permeate — and concentrate. Managing concentrate is the industry's most persistent challenge. Klarwin integrates DyVaR technology from Salttech — patented single-step separation combining concentration and crystallization. Up to 98% volume reduction, 85–92% water recovery.

Model range: DyVaR-30 to DyVaR-1080 (30–1,080 m³/day)
Condensate TDS: reduced below 100 mg/L
Scalable modular design with superior energy efficiency
Pilot projects: Vivani Slobozia (world premiere), Ghizela, Klarwin PRO

Flexible Service Models

Klarwin adapts the commercial model to each operator's situation — from full ownership to complete outsourcing.

Plant Sale — installation, commissioning, operator training, maintenance
All Inclusive / Pay per m³ — client pays only per m³ treated, Klarwin assumes full operational responsibility
Equipment Rental — flexible for temporary or seasonal needs, technical support included
Consultancy, Service & Maintenance — evaluation, diagnostics, preventive and corrective maintenance
Klarwin leachate treatment service models — plant sale, rental, all-inclusive operation
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We treat the leachate your landfill produces

DTRO and DyVAR systems, pretreatment, salt management — Klarwin designs, installs and operates the leachate treatment chain that meets discharge limits and protects groundwater. Talk to an engineer who runs the plant.

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