EWC Code
Saturated or spent ion exchange resins
EUR-Lex Commission Decision 2000/532/EC — Official Journal L 226, 06/09/2000Have a 19 08 06* stream? See the dossier that replaces the feasibility study.
See the validation dossier~9 Mt dry solids/year EU-27 sewage sludge · €-80 to €+30/tonne (P recovery premium; spreading cost avoided)
Primary buyers include Sewerage and Support activities for crop production.
Get your full stream analysisAnnual Volume (EU)
~9 Mt dry solids/year EU-27 sewage sludge
Valorisation Range
€-80 to €+30/tonne (P recovery premium; spreading cost avoided)
Primary Route
Agricultural Land Application
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Get contacts for EWC 19 08 06*EWC 19 08 06* is a specific sub-code under EWC 19 08 — Wastes from waste water treatment plants not otherwise specified. The classification guidance below applies to this waste stream.
EWC 19 08 covers solid and semi-solid residues from wastewater treatment including primary sludge (raw settled solids), secondary biological sludge (activated sludge process), mixed digested sludge (anaerobic digestion effluent), and mechanical dewatering cake. EU Urban Wastewater Treatment Directive 91/271/EEC mandates treatment and defines sludge management obligations; approximately 40% of EU sludge is applied to agricultural land, 26% incinerated, and the remainder landfilled or composted.
Sewage sludge applied to agricultural land must comply with the Sewage Sludge Directive 86/278/EEC, setting maximum heavy metal concentrations (Cu, Zn, Ni, Cd, Pb, Hg, Cr) in both sludge and receiving soil. Nutrient value — typically 2–5% N, 1–4% P₂O₅, 0.3–0.8% K₂O on a dry solids basis — offsets fertiliser costs by €15–30/tonne DS equivalent.
Phosphorus recovery from sludge (struvite crystallisation: MgNH₄PO₄·6H₂O from centrate streams) is the emerging high-value route, driven by EU Critical Raw Materials designation of phosphorus rock. Commercial struvite plants (Ostara Pearl, NuReSys) capture 70–85% of dissolved phosphorus from digestion centrate, producing a slow-release fertiliser granule valued at €200–400/tonne. EU Fertilising Products Regulation 2019/1009 includes struvite in Component Material Categories (CMC10), enabling CE-marked product status.
Typical Generators
Established valorisation pathways for EWC 19 08 06*, ranked by economic value and market depth.
Dewatered digested sludge (≥22% DS) applied to agricultural land as organic fertiliser and soil conditioner under 86/278/EEC. N and P credits offset synthetic fertiliser purchase. Requirements: heavy metal analysis, agronomist nutrient management plan, 4-year application frequency restriction on sensitive soils.
Crystallisation of magnesium ammonium phosphate (struvite, MAP) from digester centrate at pH 8.5–9.5 and Mg:P molar ratio 1.2:1. Recovers 70–85% dissolved P₂O₅. Struvite granules (2–4mm) are CE-marked fertiliser under EU 2019/1009 CMC10, traded at €200–400/t. Eliminates pipe-scaling and reduces chemical P-removal costs at WWTP.
Dried sludge (≥90% DS) incinerated in mono-combustion fluid-bed or multiple-hearth incinerators. Sludge ash (10–15% of dry solids weight) contains 8–12% P₂O₅ — recoverable by wet-acid or thermochemical leaching. Hydroretort and AshDec processes convert sludge ash to low-cadmium phosphate fertiliser under 2019/1009. Germany mandates P recovery from sludge ash at plants >50,000 population equivalent by 2029.
These are the established routes for EWC 19 08 06*. Which one your stream qualifies for depends on its composition, volume and region.
See how this gets validatedPrimary & secondary off-takers
WWTP operators managing sludge dewatering and primary treatment on-site
Agricultural spreading of compliant digested sludge as organic fertiliser and soil conditioner
Anaerobic digestion of sludge producing biogas (60% CH₄) for grid injection or combined heat and power (CHP)
Thermal drying and incineration of sludge failing land-spreading quality thresholds
Your saturated or spent ion exchange resins stream is assessed against chemistry, waste classification and proven recovery routes — graded results in your browser in seconds. No call, no commitment.
Recovery tiers only. For numbers that survive a technical review, see the validation dossier.