1
Chemicals for the treatment of waste water; Clarification preparations for treating wastewater; Flocculants for treating wastewater, precipitants for treating wastewater; Coagulants for treating wastewater, chemicals for treating digested sludge; Inorganic magnesium salt-based substances for phosphate precipitation and coagulation; Chemicals for forming magnesium ammonium phosphates and colloid coagulations in phosphate-containing substances
7
Machines and installations for processing and treating sewage sludges of all kinds; Machines and installations for thickening, dewatering and separating sewage sludges, machines and installations for waste disposal, machines and installations for sewage sludge disposal, sewage sludge collectors, sewage sludge separators, sewage sludge filters
11
Machines and installations for treating and processing wastewater of all kinds, septic tanks for sewage sludge, machines and installations for wastewater disposal, sanitary apparatus and installations, machines and installations for generating thermal energy, machines and installations for generating thermal energy from wastewater and sewage sludge, machines and installations for separating out gas from wastewater and sewage sludge, apparatus for heating, steam generating, cooking, refrigerating, drying, ventilating and water supply purposes, in particular for machines and installations for treating and processing wastewater and sewage sludges of all kinds, all the aforesaid machines and installations being parts of wastewater clarification installations
40
Treatment of materials, namely treatment and processing of wastewater of all kinds using machines and installations for treating and processing sludges of all kinds, using sludge tanks, sludge collectors, sludge filters, sludge digestion and sludge fermentation installations, using machines and installations for thickening, dewatering and separating sludges, using machines and installations for waste disposal, in particular sludge disposal; Treatment of materials for separating and processing a mixture of water and organic sludges; Processing and treatment of wastewater and sludges using physical, chemical and/or biological methods, in particular for separating out magnesium ammonium phosphate