Turn Slurry and digestate into high-value fertiliser and clean water
Advanced evaporators for slurry and digestate treatment
We help biogas plants and livestock farms turn slurry and digestate into clean water and a usable mineral fertiliser (RENURE-compliant).
Start at the main page for the big picture — then dive deeper on Technologies, References and the evaporator calculator. Feel free to reach out, we'd be glad to get to know you and your project.
What does MKR focus on?
MKR focuses on treating slurry and digestate from food-waste and waste plants — with thermal and electric vacuum evaporators built in Bavaria and serviced worldwide.
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Know-how for your project
Specialist in slurry and digestate treatment, with a focus on residue and food-waste digestion (food waste, food and organic waste).
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Storage & nutrient management
Our thermal and electric evaporators reduce volume by up to 90% and recover mineral nitrogen fertiliser from it.
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Technological precision
Our DV and MVR systems guarantee precise and reliable processing for maximum operational efficiency and the highest quality.
Two technologies - one goal
For digestate from food waste fermentation with available waste heat. Modular from 5,000 to over 40,000 m³/year. Achieving up to 70% volume reduction.
For sites without waste heat. Powered by electricity, up to 90% reduction, Zero Liquid Discharge possible.
Which evaporator is right for me?
With usable waste heat, the thermal DV series; without it, the electric MVR series — or the DV series with a heat pump for thicker media. Try our evaporator calculator for a first recommendation in seconds.
Since 2009
Experience with digestate, manure and food waste facilities
Europe-wide
delivered (global service available)
up to 90%
Volume reduction
up to 20 l/kWh
Distillate efficiency (MVR)
Why MKR for your project?
Because we deliver more than a machine - from decades of evaporator know-how, buld quality and automation to energy efficiency, nutrient recovery, full project support and long-term support - proofed before you invest.
Engineering & quality
Built to last, down to the last detail.
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Stainless steel for all media-contacting parts
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Acid & ASL handling entirely in corrosion-resistant plastic
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Premium components from leading manufacturers
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Precise in-house manufacturing & pre-assembly
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Flexible, modular, expandable design with excellent accessibility
Automation & low-maintenance operation
Runs reliably, cleans itself, needs little attention.
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Automatic CIP cleaning with acid & alkaline cycles
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Automated sensor flushing during operation — even with challenging media
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Low maintenance — no moving parts in the digestate
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Quick heat-up and fast response to temperature changes
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Complete control solution — cabinet design, build & control programming
Energy efficiency & economics
Top efficiency, low operating costs.
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Best thermal efficiency — up to 4.3 l distillate per kWh, adapts to available heat (65–85 °C)
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Up to 70% reduction (DV, thermal) / up to 90% (MVR, electric)
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Low operating costs — from €5.50/m³ (DV) / €7/m³ (MVR)
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Scalable from 5,000 to over 40,000 m³ per year
Nutrient recovery & clean water
Three valuable products instead of disposal.
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RENURE-compliant ammonium sulphate solution (ASL) in mineral-fertiliser quality, pH 5.5–6.5, no mixing of acid & digestate
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Odour-free distillate — for discharge, process water or nitrogen-free recirculate
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Nutrient-rich concentrate returned to the plant
Service & project support
With you from first sample to long-term operation.
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Trial evaporation in our own in-house laboratory before you invest
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Forward-thinking project planning incl. economic evaluation
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Expert-led implementation incl. permitting documentation
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Fast, on-schedule on-site assembly (preassembled delivery)
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Service & maintenance contracts incl. spare-parts management