AIRPREX

[ Purification chemicals for water, industrial waste water and sludge; chemicals for the treatment of digested sludges; inorganic chemical preparations based on magnesium salt for phosphate precipitation and coagulation; chemical products for the formation of magnesium- ammonium- phosphates and colloid coagulations in phosphate containing substances ]

Purification installations for sewage; sanitary apparatus and installations, namely, biological contactor for treatment of sewage and drainage water, bioreactor for use in the treatment of waste water, sewage disposal plants, sewage purification apparatus, sewage purification installations, sewage treatment plants, slurry treatment units for stabilizing and sanitizing slurry, waste water purification apparatus, installations and tanks, waste water purification units, waste water treatment tanks, water purification, sedimentation and filtration apparatus for clarification, thickening and filtration of water, waste water and industrial water; sludge catchers and collectors, sludge scraper, sludge filter, water extraction machines, sludge thickening machines; all the aforementioned good as parts of purification installations for sewage and so far as contained in class 11

[ Processing and treating of sludges, in particular using a magnesium-ammonium-phosphate-process for the treatment of anaerobic sludges through physical, chemical and/or biological processes; separation of a mixture of purified waste water and revived sludge ]