EWC Code
Acids not otherwise specified
EUR-Lex Commission Decision 2000/532/EC — Official Journal L 226, 06/09/2000Have a 11 01 06* stream? See the dossier that replaces the feasibility study.
See the validation dossier~1.8M tonnes/yr (EU) · €40–180/tonne treatment; zinc recovery at €600–900/tonne Zn content
Primary buyers include Lead, zinc and tin production and Manufacture of cement.
Get your full stream analysisAnnual Volume (EU)
~1.8M tonnes/yr (EU)
Valorisation Range
€40–180/tonne treatment; zinc recovery at €600–900/tonne Zn content
Primary Route
Secondary Zinc Recovery
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Get contacts for EWC 11 01 06*EWC 11 01 06* is a specific sub-code under EWC 11 01 — Wastes from chemical surface treatment and coating of metals and other materials (e.g. galvanic processes, zinc coating, pickling, etching, phosphating). The classification guidance below applies to this waste stream.
EWC Chapter 11 covers wastes arising from chemical surface treatment processes applied to metals and other substrates, including electroplating, hot-dip galvanising, pickling, passivation, etching, phosphating, and anodising.
These processes generate rinse waters, spent process baths, filter cakes, and sludges with significant concentrations of heavy metals (Zn, Ni, Cr, Cu, Cd). The hazardous sub-codes (marked *) contain concentrations above threshold limits defined in Council Directive 91/689/EEC.
Non-hazardous streams under 11 01 include zinc hydroxide sludges from alkaline galvanising rinses and iron-rich pickling sludges from steel hot-rolling lines — both commercially recoverable. Zinc sludges are accepted by non-ferrous smelters as secondary zinc feed; iron-rich sludges are co-processed in cement kilns or sintering plants.
Typical Generators
Established valorisation pathways for EWC 11 01 06*, ranked by economic value and market depth.
Zinc-bearing sludges from galvanising rinses are processed in Waelz kilns or ISP furnaces. Zinc oxide crude recovered at 55–60% Zn; further refined to SHG zinc (99.995%). Typical gate fee: €0–40/tonne; zinc oxide value offsets cost.
Iron and calcium-rich surface treatment sludges used as raw meal substitute or fuel supplement in cement clinker production. Substitutes 2–5% of primary raw materials. Accepted by major cement groups (HeidelbergMaterials, Holcim) under permitted co-processing contracts.
Stabilised and solidified hazardous sub-streams disposed to Class I permitted hazardous waste landfill sites. Requires pre-treatment to meet leachate limits under Directive 1999/31/EC Council Decision 2003/33/EC.
These are the established routes for EWC 11 01 06*. Which one your stream qualifies for depends on its composition, volume and region.
See how this gets validatedPrimary & secondary off-takers
Primary zinc recovery from galvanising sludges
Co-processing of iron-rich pickling sludges
Recovery of nickel and copper from electroplating baths
Stabilisation and disposal of non-recoverable fractions
Your acids not otherwise specified 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.