Sludge Returned CMAS에 의한 전기부속품제조공장 폐수처리

  • 김남천 (서울보건전문대학 환경공업과) ;
  • 이시진 (경기대학교 환경공학과 Tel. 82-331-40-7625 E-mail : sjlee@kuic.kyonggi.ac.kr)
  • Published : 1997.08.01

Abstract

Sludge Returned CMAS process was applied to treat the wastewater from electric accessory manufacturing company while this type of wastewater was usually treated by chemical process. This result show that the removal rate of TCOD was about 70-80% regardless of hydraulic retention time, On the contrary, the removal rate of BOD was abtained in a range of 77-92% depending on hydraulic retention time. In order to remove more than 80% of organic materials with the proposed process, the F/M ratio should be maintained below 0.17. In this case, the calculated value of organic removal rate, Km, was calculated to be 1.26 hr$^{-1}$, and the ratio of cell synthesis/total energy was 0.32 and 0.26 for COD and BOD base, respectively. The yield coefficient was calculated to be 0.242 and the half velocity coefficient was 0.3 hr$^{-1}$. The value of endogenous respiration coefficient was 0.02 hr$^{-1}$. The measured effluent BOD concentration, MLSS concentration in aeration tank, oxygen uptake rate, and sludge production were matched relatively well with the calculated values using above coefficients, In order to optimize the dewatering of sludge, the hydraulic retention time was recommended to be 15. 6 hrs. These results indicate that the wastewater from an eletric accessory manufacturing company can be treated safely with a biological process.

References

  1. 수질환경보전법 환경부
  2. 環境工學實驗 金南天
  3. 수질환경오염공정시험법 환경부
  4. 高麗大學校 大學院, 土木工學科, 博士論文 저온에서의 활성슬러지의 성장에 관한 연구 閔康碩
  5. Wastewater treatment plant Design MOP/8
  6. J. SED, ASCE. v.88 no.SA 3 Mathematics of complete mixing activated sludge Mckinney, R. E.
  7. 서울보건전문대학 논문집 v.15 동물성 잔재물 재활용 공장의 폐수처리에 관한 연구 金南天
  8. Bulletin v.60 Concepts of complete mixing activated sludge. Transfer. of the 9th annual conference on sanitation engineering Mckinney, R. E.;Ootem, R. J.
  9. 下水試驗方法 日本下水道協會
  10. 廢水の 活性汚泥處理 中眞喜夫
  11. Technology transfer process design manual for sludge treatment and disposal EPA
  12. Apllication of complete mixing activated sludge design equation to industrial waste. J v.40 Burkhead, C. E.;Mckinney, R. E.
  13. 廢棄物處理와 資源化 崔義昭
  14. WPCF v.50 Evaluation of control parameters for the activated sludge process Stall, T. R.
  15. Geogria Institute of technology Evaluation of CMAS design constants. presented at International conf. sponsored by the AWPR Burkhead, C. E.
  16. WPCF v.41 no.11 Temperature effects on energy oxygen requirements in biological oxidation. J Shih, C. S.;Stack, V. T. Jr.