Digestate Dryer Manufacturer in the Netherlands
See how we dry Digestate FibreLooking for digestate dryers manufacturers in the Netherlands? STRONGA builds FlowDrya lines to order at its Hertfordshire works and supplies them to the Netherlands — see the regulatory and economic context below.
FlowDrya digestate dryers are engineered to order at STRONGA's Hertfordshire works and supplied to Dutch biogas operators and manure processors, though no FlowDrya fibre line is yet commissioned on local soil. Anaerobic digestion is central to Dutch energy and nutrient policy, but it leaves a wet digestate that is awkward to store, spread or move – and from 2026 the Meststoffenwet caps nitrogen from animal manure at 170 kilograms per hectare on every plot, ending the old derogation, so surplus nutrient must leave the region rather than saturate nearby land. Drying the screened fibre from around 80 per cent moisture toward 15 per cent concentrates the nitrogen, phosphate and potash into a stable, transportable product that farms far from the digester will buy.
Supplying the Netherlands
We supply the Netherlands from our Hertfordshire works — we have no documented Digestate Fibre installation in the Netherlands yet.
Regulatory context
Dutch waste law is framed by the Wet milieubeheer (Environmental Management Act), whose article 10.4 binds the minister, provinces and municipalities to a priority order for waste: prevention first, then preparation for re-use, recycling, other useful application including energy recovery, and safe disposal only as a last resort. Turning a wet residue into a fuel or a stabilised soil product is a form of recovery the act ranks above disposal, so drying supports the legal duty to move material up that hierarchy rather than down it.
Source: https://wetten.overheid.nl/BWBR0003245 · checked 2026-08
The Besluit stortplaatsen en stortverboden afvalstoffen bans a long list of waste streams from landfill: any waste that can be recycled or incinerated, including biowaste and other combustible and recoverable fractions, may not be buried. Because cheap disposal to landfill is closed off, wet combustible and organic residues have to be recovered as a fuel or a soil product instead, and a low, even moisture is what lets that residue hold a specification an off-taker will accept.
Source: https://business.gov.nl/regulations/dumping-sites/ · checked 2026-08
The Meststoffenwet (Fertilisers Act) caps nitrogen from animal manure at 170 kilograms per hectare per year, and from 2026 the derogation that let dairy farms apply more is gone, so the 170-kilogram ceiling now applies to every agricultural plot. Combined with the wider nitrogen crisis this leaves the country with a structural manure and digestate surplus, which makes drying and exporting concentrated, transportable nutrient products a central route out of over-application on local land.
Source: https://www.rvo.nl/onderwerpen/mest/derogatie · checked 2026-08
Compost and digestion products traded to Dutch growers are certified under Keurcompost, an independently monitored quality scheme that goes beyond the statutory Meststoffenwet limits: it hygienises the material, grades it into quality classes on contaminant content and holds impurities well below the legal maximum. A dried, stabilised feedstock holds those pathogen and contaminant bands far more reliably than a wet, actively degrading one.
Source: https://www.kiwa.com/nl/nl/diensten/certificering/keurmerk-keurcompost/ · checked 2026-08
Alongside the EU Emissions Trading System, the Netherlands runs a national CO2-heffing industrie on industrial and waste-incineration installations. For 2026 the levy is set at 78.67 euros per tonne of CO2 for ETS installations and 103.66 euros per tonne for waste-incineration plants; because the reference EU ETS price of 79.42 euros already exceeds the national rate, the extra levy payable by an ETS installation for 2026 works out at zero, but the framework keeps a firm floor under the carbon cost of burning fossil fuel or unrecovered waste.
Source: https://www.emissieautoriteit.nl/regelgeving/co2-heffing/tarieven-co2-heffing · checked 2026-08
Applicable standards: EN ISO 21640, EN ISO 17225-4, EN ISO 18134, Keurcompost quality classes (BRL Keurcompost).
Economic context
Burying or burning waste both carry the afvalstoffenbelasting (waste tax). From 1 January 2026 the rate is 40.85 euros per 1,000 kilograms, charged on waste sent to landfill or to an incinerator, and it is legislated to climb to 90.21 euros per tonne in 2028 and 113.81 euros per tonne in 2035. Recycled material is exempt, so every tonne of wet residue dried into a recoverable fuel or a saleable soil product escapes a rising per-tonne charge.
Source: https://www.belastingdienst.nl/wps/wcm/connect/bldcontentnl/belastingdienst/zakelijk/overige_belastingen/belastingen_op_milieugrondslag/afvalstoffenbelasting/tarief_afvalstoffenbelasting · checked 2026-08
National policy pays to recover wet organics and to supply renewable heat. The SDE++ (Stimuleringsregeling Duurzame Energieproductie en Klimaattransitie), the main Dutch renewable-energy and CO2-reduction subsidy run by RVO, has about 8 billion euros available in its 2026 round and supports renewable heat from biomass, renewable gas from anaerobic digestion, and low-carbon heat. That underpins demand for the biogas, biomass and digestion plants whose fibre and residue a FlowDrya can dry into a stable, marketable product.
Source: https://english.rvo.nl/subsidies-financing/sde/apply · checked 2026-08
Bought-in power is a real cost. Eurostat put the EU average non-household electricity price at 0.1837 euros per kWh in the second half of 2025, and Dutch industry sits around that level rather than below it. Boiling water off with grid electricity is therefore uneconomic, which rewards a dryer designed to run on recovered kiln, boiler or exhaust heat and very little electrical power.
Source: https://ec.europa.eu/eurostat/web/products-eurostat-news/w/ddn-20260508-2 · checked 2026-08
Industrial gas is likewise a burden. Eurostat put the EU average non-household natural gas price at 0.0605 euros per kWh in the second half of 2025, and the Netherlands was one of only four EU member states where that price rose year on year, up 6.3 per cent. Running a dryer on a site's own surplus or recovered heat rather than bought-in gas therefore protects the operating margin.
Source: https://ec.europa.eu/eurostat/web/products-eurostat-news/w/ddn-20260508-3 · checked 2026-08
Worked illustration (assumptions stated):
The economics rest on avoided disposal and concentrated nutrients. A wet digestate carted to an incinerator or landfill runs into the afvalstoffenbelasting of 40.85 euros per tonne, a charge legislated to keep rising; a dried, Keurcompost-grade fibre instead earns a price from arable growers because the water weight is gone and the nutrients are documented. The digester itself can draw SDE++ support, with about 8 billion euros available in the 2026 round for renewable heat and renewable gas, and that same recovered heat – from the biogas CHP engine – is what fires the dryer rather than costly grid power. Assumptions stated: nutrient value, haulage distance and heat source govern the payback.
Figures are indicative and were last reviewed August 2026; energy and disposal prices move — contact us for a current assessment.
Digestate Dryer Manufacturer in the Netherlands — FAQ
Do you have a digestate dryer here?
Not yet, and we will not imply one. Every FlowDrya is built to order in Hertfordshire and commissioned on site; our documented references run the same continuous-flow platform a Dutch digester would receive.
Why dry digestate fibre?
Raw digestate is roughly 80 per cent water, heavy and hard to store or spread within nutrient rules. Drying the screened fibre toward 15 per cent stabilises it, cuts odour and concentrates the nutrients into a transportable, saleable product.
How does the 170-kilogram manure limit change the case?
From 2026 the Meststoffenwet allows only 170 kilograms of nitrogen from animal manure per hectare a year on all land, so a digester in a livestock-dense area holds surplus nutrient it cannot place locally. A dried, concentrated fibre can be exported to arable regions that want it.
Can the dried fibre be sold as a certified product?
Yes. Graded under Keurcompost it meets contaminant and hygiene limits well beyond the statutory Meststoffenwet minima, which a dried, stabilised fibre holds far more reliably than a wet, degrading one.
What heat source should fire the dryer?
Recovered heat is the economic choice – typically the waste heat from the biogas CHP engine on the same site – because grid electricity around the EU average of 0.1837 euros per kWh makes electric drying uneconomic.
How is a plant shipped and commissioned from the UK?
Each dryer is fully assembled and factory-tested at our works, then dismantled for freight, rebuilt on arrival, connected to the heat supply and brought online through a supervised trial before handover.