EWC Code
Solid salts and solutions containing heavy metals
EUR-Lex Commission Decision 2000/532/EC — Official Journal L 226, 06/09/2000Annual Volume (EU)
50,000 tonnes/year EU-wide
Valorisation Range
Specialist disposal; limited recovery market
Primary Route
Chemical reduction and neutralisation
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Get contacts for EWC 06 03 13EWC 06 03 13 is a specific sub-code under EWC 16 09 — Oxidising substances. The classification guidance below applies to this waste stream.
EWC 16 09 covers oxidising substances not otherwise classified. Entry 16 09 01* (permanganates, e.g. potassium permanganate), 16 09 02* (chromates, e.g. potassium chromate, potassium dichromate), 16 09 03* (peroxides, e.g. hydrogen peroxide), 16 09 04* (other oxidising substances not otherwise specified) all carry hazardous designation.
Oxidising waste substances react exothermically with organic materials, fuels and reducing agents. Contamination of oxidising waste with organic matter constitutes a fire and explosion hazard. Storage and handling must segregate oxidising wastes from combustibles, reducing agents and incompatible chemicals.
Chromate-containing wastes are subject to restriction under REACH Annex XVII (hexavalent chromium) and require specific treatment — typically reduction to Cr(III) followed by hydroxide precipitation — before disposal. Permanganate wastes may be reduced to MnO2 for stabilisation. Peroxide waste decomposition must be controlled to prevent oxygen evolution.
Typical Generators
Established valorisation pathways for EWC 06 03 13, ranked by economic value and market depth.
Chromate wastes reduced from Cr(VI) to Cr(III) using reducing agents (sodium metabisulphite, SO2); precipitated as Cr(OH)3. Permanganate reduced to MnO2. Neutralised, precipitated sludges dewatered for hazardous landfill.
Hydrogen peroxide waste solutions diluted and decomposed catalytically (MnO2 catalyst or heating) to water and oxygen under controlled ventilation. Diluted solutions may be suitable for wastewater treatment as oxidant.
Mixed oxidising waste streams not amenable to chemical treatment incinerated at permitted high-temperature facility. Excess oxygen from oxidisers must be accounted for in combustion air calculation. Dedicated oxidiser waste streams may be used as combustion air supplement.
These are the established routes for EWC 06 03 13. Which one your stream qualifies for depends on its composition, volume and region.
Get the ranked options for your streamPrimary & secondary off-takers
Licensed chemical treatment and disposal of chromate, permanganate and peroxide wastes
Recovery of oxygen from controlled peroxide decomposition where concentrations justify
Dilute hydrogen peroxide waste used as oxidant in water treatment processes
Re-formulation of off-spec oxidising substances where composition allows
Sectors that valorise EWC 06 03 13 as an input material or secondary raw material.
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