Food Processing Wastewater Treatment with Ejector-Type Aerator

Ejector형 포기장치를 이용한 식품가공폐수를 처리

  • 정용현 (부경대학교 공과대학 환경공학과)
  • Published : 1999.04.01

Abstract

This study was conducted to evaluate the treatment efficiency including reaction kinetics and hydraulic characteristics of food processing wastewater by using an ejector-type aeration system (ETAS) in activated sludge process. The oxygen transfer efficiency in ETAS can be changed in accordance with the depth of reactor. However, the optimum air velocity was found less than 1.82 m/hr at a superficial liquid velocity of 634 m/hr. The ETAS process showed higher organic material removal efficiency than that of the existing activated sludge process under hydraulic detention time 6 to 12 hours. This process, which can maintain MLVSS highly, is able to have high organic material removal efficiency at short HRT and deal with variable organic material loading.

Keywords

References

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