DWA Industry Guide Watermanagement, Wastewater-Waste

6.2.33 Nitrification, denitrification

6.2.41 Foam destruction installations, agents

6.3.1 Chemical Phosphorus Removal

6.7.5 Precipitation agents

6.7.8 Flocculation agents

6.7.11 Other chemical or biological

8.2.1 Chemicals for water treatment