EWC Code
Wastes from the leather and fur industry
EUR-Lex Commission Decision 2000/532/EC — Official Journal L 226, 06/09/2000Have a 04 01 stream? See the dossier that replaces the feasibility study.
See the validation dossier~2 Mt/year EU leather industry residues (hides, sludge, chemicals) · Chrome shavings €20–60/t; tallow/fat from liming €200–400/t; leather scrap for gelatine €40–80/t
Primary buyers include Manufacture of leather and related products and Manufacture of basic chemicals and Waste treatment and disposal.
Get your full stream analysisAnnual Volume
~2 Mt/year EU leather industry residues (hides, sludge, chemicals)
Valorisation Range
Chrome shavings €20–60/t; tallow/fat from liming €200–400/t; leather scrap for gelatine €40–80/t
Primary Route
Chrome recovery and protein valorisation
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Get contacts for EWC 04 01EWC 04 01 covers the full range of residues from raw hide and skin processing through to finished leather: lime sludge (from unhairing), raw hair, fleshings (fat and tissue from hide preparation), chrome shavings (trimming of wet-blue chrome-tanned leather), chrome dust, buffing dust, spent tanning liquors, finishing sludge and wastewater treatment residues. The tanning process involves multiple wet chemical stages generating both hazardous (chromium-containing) and non-hazardous streams.
Chrome shavings from wet-blue leather are the most commercially significant waste stream — containing 3–5% chromium (predominantly Cr(III)), they are used for chrome recovery (hydrothermal hydrolysis), gelatin production, and as a protein fertiliser input subject to REACH chromium limits. Liming sludge (calcium hydroxide, hair, proteins) is used in biogas production after de-hairing. Fleshings (rendered to tallow) are a Category 3 ABP. Spent chromium tanning liquors require treatment and chrome recovery before discharge.
EU tanneries are covered by IED as large installations, with BAT conclusions defining emission limit values and waste minimisation techniques. The sector has faced significant environmental scrutiny due to chromium: while Cr(III) is used in tanning, Cr(VI) can form under certain oxidising conditions and is a serious health and environmental hazard. REACH restriction proposals for Cr(VI) in leather articles affect supply chain waste management requirements.
Typical Generators
Established valorisation pathways for EWC 04 01, ranked by economic value and market depth. Chrome recovery and protein valorisation is the primary route.
Chrome shavings hydrolysed to recover chromium for return to tanning liquor and protein hydrolysate for fertiliser or pet food. Chrome recovery reduces raw material cost and hazardous waste liability. Requires specialist hydrometallurgical plant.
Non-chrome organic residues (fleshings, liming sludge, hair) rendered (Category 3 ABP route) for tallow and protein meal, or co-digested for biogas. Digestate from liming sludge biogas is an alkaline soil conditioner.
Chrome shavings, buffing dust and chrome sludge that cannot be valorised disposed at permitted hazardous or non-hazardous landfill depending on total chromium content and leachability. Pre-treatment to reduce Cr(VI) formation required before disposal.
These are the established routes for EWC 04 01. Which one your stream qualifies for depends on its composition, volume and region.
See how this gets validatedPrimary & secondary off-takers
Tanneries are primary generators; leather goods manufacturers generate cutting waste and offcuts
Chrome recovery specialists return chromium sulphate to tannery market
Rendering and hazardous waste treatment facilities receive tannery residues
Tallow from hide fleshings used in soap and oleochemical production
Source: NACE Rev.2 — Eurostat, 2008
Key legislative frameworks governing EWC 04 01 classification, transport, and treatment.
Large tanneries require IED permits. BAT conclusions include chrome recycling (>98% recovery from spent liquors), reduction of sulphide in liming, and wastewater treatment to achieve Cr <0.3 mg/L in final effluent.
Restriction proposal under REACH would limit Cr(VI) to <3 mg/kg in leather articles in contact with skin. Affects tanning chemistry choices and waste stream Cr(VI) monitoring requirements.
Fleshings and liming sludge are Category 3 ABP from healthy animals. Route to rendering or biogas requires collection by registered operators. Hide and skin from non-slaughter operations classified Category 2.
Your wastes from the leather and fur industry 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.
Sectors that valorise EWC 04 01 as an input material or secondary raw material.
Waste-stream pages and resources connected to EWC 04 01 valorisation.
Explore EU waste flows — Waste Atlas
Visualise 17 years of E-PRTR industrial facility data. See how EWC 04 01 and related waste streams flow across European industries and sectors.
Source: EUR-Lex Commission Decision 2000/532/EC · NACE Rev.2 — Eurostat 2008
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