The best results are obtained if the media, in this case zeolites sorted with the size of 0.6 -0.8 mm and concentration of Clinoptilolite to 87%, is pre-inoculate with bacterial consortium.This was achieved through zeolites immersion in bioreactors with inoculate for several weeks in controlled environment. Zeolites was previously formatted through washing with a solution of Hydrochloric Acid. After washing and drying at 400 degrees Celsius, are treated with a sodium chloride brine at a pH of 12 with NaCl. At the moment is produced specialisation of zeolites via sodium-ion doping in order to have high selectivity relative to ammonium ions and neutral over other ions such as calcium, magnesium, etc… Zeolites retention capacity can reach to be 30 mg NH4/1 gram zeolites. This retention capacity is finite and will arrive at the passivation in very short time. To counter this passivation is bacterial consortium after it was pre-innoculate amazing develops a specific area until 24,000 m2/m3.