PLANT AND METHOD FOR THE PURIFICATION OF FUMES AND RECOVERY OF SECONDARY RAW MATERIAL

MICROBIOLOGICAL METHOD OF NITRIFICATION FOR PRODUCTION OF ORGANIC FERTILIZERS

Method for complex treatment of phosphogypsum

Method of treating phosphate-containing ash from waste-incineration plants by wet-chemical digestion in order to obtain compounds of aluminium, calcium, phosphorus and nitrogen

Pulse jet system and method

Pulse jet water desalination and purification

Production of chemical compounds

Purification of barium ion source

Rare earth recovery from fluorescent material and associated method

Iron oxide precipitation from acidic iron salt solutions