R & D

Retained Technologies

PBAC Engineering Method
  • It is a technology to divide bioreaction tank into anaerobic tank for nitrogen removal, anaerobic tank for phosphorus removal, and aerobic tank; and to remove unprocessed organic substances, nitrogen and phosphate of sewage and wastewater in a PBAC (Pelleted Bio Activated Carbon) tank in the back end of bioreaction tank by filling carrier in the aerobic tank and using attached microorganism and floated microorganism.
Processing process chart of KNR

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PBAC(Pelleted Bio Activated Carbon)
Outline
Primary Treatment (Anaerobic, Intermittent Aeration, Aerobic Tank) Process + Secondary Treatment (PBAC) Combination of bio-membrane processes to maximize the treatment of nitrogen (N) and phosphate (P)
Treatment Process
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Feature
Quality of treated water : BOD Less than 10㎎/ℓ, SS Less than 10㎎/ℓ , T-N 85%, T-P 70%
low demand of location
Stable treatment of water
Low cost for maintenance & management