R&D R&D CENTER
Possessed technology
Business
DEHASS
A hybrid process designed to induce separation growth of suspended and attached microorganisms and optimize reaction.
Technical process
Technical Features
01
Provides short hydraulic
retention time and stable
level of efficiency in treatment
of nitrogen and phosphorous
even with low temperature.
retention time and stable
level of efficiency in treatment
of nitrogen and phosphorous
even with low temperature.
02
Achieves a high level of efficiency
in nitrification through separate
growth of autotrophs(nitrifying
microorganisms) and heterotrophs
(denitrifying microorganisms).
in nitrification through separate
growth of autotrophs(nitrifying
microorganisms) and heterotrophs
(denitrifying microorganisms).
03
High concentration
of nitrifier is
ensured by high
nitrification
efficiency.
of nitrifier is
ensured by high
nitrification
efficiency.
04
Achieves a high level of
efficiency in removing
efficiency phosphorus by providing
pneumatic(anaerobic) and
exhalation(re-aeration) conditions.
efficiency in removing
efficiency phosphorus by providing
pneumatic(anaerobic) and
exhalation(re-aeration) conditions.
Process overview
| Process | HRT (min) |
Mechanism |
|---|---|---|
| Anaerobic contact tank |
25~30 | Remove more than 70% of the incoming organic matters through biosorption in MLSS and induce PO43-P release with a high level of efficiency. |
| Nitrification | 120 | Induce the growth of nitrifier and nitrification process with a high level of efficiency through MEDIA. |
| Anoxic tank #1 | 100 | Induce endogenous denitrification reaction using organic adsorbed MLSS with a high level of efficiency. |
| Intermittent aeration tank |
70 | Induce nitrification and denitrification of TKN component in transported sludge. |
| Anoxic tank #2 | 30 | Denitrify undenitrified NO3-N after nitrification in the intermittent aeration tank and transport internally. |
| Reaeration tank | 15 | Induce removal of phosphorous through luxury uptake of PO43-P released in the previous stage. |