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1. Different effluents
The effluents to be treated are the dynamic rinsing waters from the various workshop treatment lines. This water contains, in lower concentrations, the constituents of surface preparation baths, deposition baths and ions or compounds released by etching of substrates or created by chemical or electrolytic reactions.
1.1 Main constituents of degreasing rinse water
soda ash, sodium carbonate, sodium polyphosphates, sodium silicate, sodium borate;
non-ionic and anionic surfactants ;
complexing agents: ethylenediaminetetraacetic acid, nitrolotriacetic acid, sodium citrate ;
oils and fats.
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Different effluents
Regulatory constraints
Regulations
Ministerial order of June 30, 2006.
Ministerial order of September 26, 1985.
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