Digestate Dryer Manufacturer in France
See how we dry Digestate FibreLooking for digestate dryers manufacturers in France? STRONGA builds FlowDrya lines to order at its Hertfordshire works and supplies them to France — see the regulatory and economic context below.
FlowDrya digestate dryers are engineered to order at STRONGA's Hertfordshire works and supplied to biogas operators here, though we hold no commissioned digestate line on French soil and will not imply one. This matters to a méthanisation plant because a digestate marketed as a fertiliser must satisfy the mandatory NF U 44-051 standard on organic soil amendments, or be homologated; only then does it leave waste status and trade freely. A wet, actively degrading digestat rarely holds those quality limits. Conditioning the pressed fibre to a low, even moisture concentrates and fixes its nitrogen, phosphate and potash, so the material stores safely and travels as a documented soil product rather than an over-applied slurry.
Supplying France
We supply France from our Hertfordshire works — we have no documented Digestate Fibre installation in France yet.
Regulatory context
Article L541-1 of the Code de l'environnement is the backbone of French waste law and transposes the EU Waste Framework Directive. It fixes a five-step hierarchy — prevention, preparation for re-use, recycling, other recovery including energy recovery, and disposal only as a last resort — and sets a statutory target to cut the tonnage of non-hazardous, non-inert waste sent to landfill by 50 per cent in 2025 against the 2010 level. Drying a wet residue into a fuel or a soil product is a recovery operation that ranks above burial in that legal order and helps a site meet the diversion goal.
Source: https://www.legifrance.gouv.fr/codes/article_lc/LEGIARTI000042176062/ · checked 2026-08
The loi anti-gaspillage pour une économie circulaire (loi AGEC, law no. 2020-105 of 10 February 2020) reinforces that direction across the whole economy, expanding extended-producer-responsibility schemes and steering material away from disposal toward re-use and recovery. For an operator turning a wet by-product into a marketable fuel or fertiliser, the AGEC framework strengthens the policy pull that already favours drying and valorisation over sending residue to a décharge.
Source: https://www.legifrance.gouv.fr/jorf/id/JORFTEXT000041553759/ · checked 2026-08
Compost and digestate sold as agricultural inputs in France must satisfy the mandatory standard NF U 44-051 on organic soil amendments, or be individually homologated, which fixes the permitted raw materials, maturity and contaminant limits a product must hold. A conforming material ceases to be a waste (sortie du statut de déchet) and can be traded like any other amendment; a dried, stabilised feedstock holds those quality limits far more easily than a wet, actively degrading one.
Source: https://aida.ineris.fr/reglementation/circulaire-270209-concernant-lentree-application-norme-nfu-44-051-relative · checked 2026-08
Applicable standards: EN ISO 21640, EN ISO 17225-4, EN ISO 18134, NF U 44-051 (organic soil amendments).
Economic context
France taxes landfill heavily through the déchets component of the taxe générale sur les activités polluantes (TGAP). From 1 January 2025 the standard TGAP rate for non-hazardous waste sent to a storage (landfill) facility is 65 euros per tonne, and the reduced rates that used to soften it have been withdrawn — a large, rising cost that pushes wet, divertible material toward drying and recovery rather than burial.
Source: https://bofip.impots.gouv.fr/bofip/13305-PGP.html/identifiant=BOI-TCA-POLL-40-30-20250723 · checked 2026-08
France also prices carbon on fossil fuels through the composante carbone built into the domestic energy tax (TICPE), valued at 44.60 euros per tonne of CO2 and frozen at that level since 2018 after the gilets jaunes protests halted its planned rise. Heavy industry sits additionally under the EU Emissions Trading System, so displacing coal or petroleum coke with a dried waste- or biomass-derived fuel avoids a real per-tonne carbon cost.
Source: https://www.connaissancedesenergies.org/questions-et-reponses-energies/quel-est-le-montant-de-la-taxe-carbone-en-france · checked 2026-08
Worked illustration (assumptions stated):
The domestic case turns on nutrient logistics and subsidised heat. A biogas site already produces surplus process heat, and firing the dryer on that recovered heat rather than bought-in energy is decisive; the same renewable-heat push is backed by ADEME's Fonds Chaleur, which put around 155 million euros into biomass boilers in 2025. Drying strips water weight, so each load carries more plant-available nutrient and fewer tankers cross the countryside. Any fibre that would otherwise be dumped also escapes the TGAP landfill tax of 65 euros per tonne. A digester that markets a dried, NF U 44-051-grade product improves its whole-site economics. Assumptions: heat source, haulage distance and offtake price are site-specific.
Figures are indicative and were last reviewed August 2026; energy and disposal prices move — contact us for a current assessment.
Digestate Dryer Manufacturer in France — FAQ
Do you have a digestate dryer installed here?
Not yet, and we will not suggest otherwise. Every FlowDrya digestate dryer is built to order in Hertfordshire and shipped with commissioning; our documented reference sites are in Britain, on the identical moving-floor platform a méthanisation plant here would receive.
Why dry digestate rather than spread it wet?
A wet fibre is heavy, hard to store and struggles to meet the NF U 44-051 quality limits. Drying concentrates the nutrients, stabilises the material and turns it into a documented product that can be stored, transported and sold.
How does NF U 44-051 affect a dried product?
The standard fixes the permitted inputs, maturity and contaminant limits an organic amendment must meet. A conforming, dried digestate leaves waste status and can be sold like any other fertiliser; a stabilised feedstock holds those limits far more reliably than a degrading one.
What moisture can FlowDrya reach on digestion fibre?
We configure each machine to the moisture the downstream use requires, taking pressed fibre down to a low, even level that supports storage, granulation or blending without needing to redry it later.
Does the FlowDrya cope with sticky, fibrous digestate?
Yes. The hydraulic moving floor tumbles and conveys a sticky, fibrous cake on a deep bed rather than caking it against a static surface, drying it evenly using recovered low-grade heat from the site.