YDRO process is a bio-augmentation process which is applied in activated sludge systems, anaerobic reactors and digesters. The YDRO process is applied by using a specially developed bacterial culture in granular form that contains facultative hydrolysis bacteria, aerobic heterotroph and autotroph bacteria, necessary enzymes, nutrients and minerals.



YDRO process is mostly used in activated sludge systems, anaerobic reactors, sludge digesters and sewage networks.

Activated Sludge Systems: YDRO process is suitable for applications in all activated sludge systems (Classic, Extended Aeration, BNR etc.) for industrial or urban wastewater.

Anaerobic Reactors and Digesters: YDRO process is applied in anaerobic sludge digesters and anaerobic reactors which are used to treat the wastewater with high organic content.

Sewage Networks: YDRO process is mostly used to prevent stinking that may occur in urban wastewater pumping centers and low slope sewage lines, to prevent the accumulation of particulate matter in critical sections due to low water velocity and to intercept the potential blockages in the network system.



In Activated Sludge Systems;

  • 60-80% reduction is observed in the amount of excess sludge that needs to be disposed of.
  • Savings of 20-25% is achieved in the electrical energy used for ventilation.
  • Cationic PE consumption is reduced by 80%
  • Significant increase is observed in micro contaminant removal.

In Anaerobic Systems;

  • An increase close to 30% is obtained in organic matter removal efficiency and the resulting biogas efficiency.
  • An improvement of about 25% is observed in the methane content of biogas.
  • Since H2S formation is prevented, it is observed that the H2S concentration in the biogas is below 100 ppm.
  • It is ensured that the required sludge age is reduced below 10 days and that the anaerobic digester or the reactor can be used with 2-3 times higher capacity.

In the Sewage Networks;

  • Smelling that may occur in urban pumping stations is prevented and the odor problem is eliminated
  • Particulate organic matter accumulation and other possible blockages are prevented in lines with low inclinations.
  • It is ensured that the load of particulate organic matter reaches the Wastewater Treatment Plants is reduced.