DWA Industry Guide Watermanagement, Wastewater-Waste
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Assigned categories
6.6.10 Membrane filter systems, reverse osmosis systems
8.2.1 Chemicals for water treatment
11.1.15 Glass production and processing
11.1.38 Metal working, metal processing
11.1.40 Wastewater containing mineral oil
11.1.60 Water conditioning, cooling systems