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Water Treatment Process

Water Treatment Process

Advanced wastewater treatment method
This advanced wastewater treatment method consists of a bioreactor tank and settling tank segmented into an anoxic tank, anaerobic tank, and aeration tank.
By introducing partial modification of the removal mechanism in the A2O method, it removes organic matter, nitrogen and phosphorus caused by nitrification, denitrification and excessive phosphorus in a bioreactor composed of anoxic, anaerobic, aerobic and internal transfer tanks, and it is a sewage treatment technology that removes microbial flocs from the settling tank via natural solid/liquid separation utilizing gravity.

Configuration and function

Configuration Function
Anoxic tank NO3-N in the internal returned water is reduced by denitrifying microorganisms and converted to N2Gas to remove nitrogen (N)
Anaerobic tank In the anaerobic state, organic matter is absorbed into the cells of phosphorus-removing microorganisms and phosphorus is re-released to obtain the required energy.
Aeration tank
  • Removal of organic substances
  • Nitrogen compounds are oxidized to NO2-N and NO3-N by nitric oxide microorganisms
  • An amount of PO4-P that is greater than the amount released from the anaerobic tank is excessively ingested in the microorganisms in the activated sludge and removed with the excess sludge.
Settling tank Microbial plocs are naturally settled due to gravity, separating solid from liquid and transferring supernatant

Performance

  • The BOD, SS, TN, TP removal rate is high, so the treatment quality is stable.
  • It is not affected by the low C/N ratio of raw water.
  • Due to the long SRT of the aeration tank, the amount of sludge generated is small.
  • Easy maintenance and easy for small-town sewage and wastewater treatment facilities.
Water quality assurance BOD 10 ㎎/ℓ
SS 10 ㎎/ℓ
T-N 20 ㎎/ℓ
T-P 2 ㎎/ℓ
Total coliform bacillus Under 3,000