vol16no3pa7

References

[1] McGhee, T., “Water Supply and Sewerage”, 6th ed. McGraw-Hill, Inc., New York, (1991).

[2] Joe Midlebrooks, E. and Fafland, C.F., “Kinetics of Model and Field Extended Aeration Wastewater Treatments Units”, J. Water Poll. Control Fed.40: 586-612,(1968).

[3] Al-Layla M. Anis, Ahmad Sh. and Joe Midlebrooks E., “Handbook of Wastewater Collection and Treatment : Principles and Practice”, Garland STPM Press, New York & London, (1980).

[4] Schroeder, E. D. “Water and Wastewater Treatment”, 1st ed. McGraw-Hill, Inc. New York, (1977).

[5] David Eye, J.; David P.E.; Fernando R. and David P.S., “Field Evaluation of the Performance of Extended Aeration Plants”, J. Water Poll. Control Fed.; 41:1299-1318, (1969).

Tikrit Journal of Engineering Sciences (2009) 16(3) 1- 11

Impact of External and Internal Factors on the Behavior of Extended Aeration Activated Sludge Process

Waleed M. Sheet Bassam M. Salman
Environmental. Eng. Dept., Tikrit University, Iraq The Ministry of Construction and Housing, Iraq

Abstract

The Behavior of an extended aeration activated sludge process was studied. Factors that might affect the performance of such process were also investigated. Three basins, each consisted of two parts one for aeration and the other for sedimentation were employed. Required tests and results analysis were made. It was found that removal efficiency of dissolved organic matter was limited to F/M ratio. The study revealed that such treatment was capable of treating variable characteristics wastes. The supernatant leaving secondary sedimentation was found to attain constant characteristics irrespective of variable influent. The results show that the maximum overall COD removal efficiency occur at hydraulic detention time equal to 23 h, 80% of SVI value was less than 125 ml/gm and the minimum SVI occur at F/M equal to 0.387 day-1 while the effluent SS increase with SVI decrease.

Download Full-Text PDF

Keywords:Activated Sludge, Extended Aeration, Municipal Wastewater, Biological Treatment

How to cite

TJES: Sheet WM, Salman BM. Impact of External and Internal Factors on the Behavior of Extended Aeration Activated Sludge Process. Tikrit Journal of Eng Sciences 2009;16(3):1-11.
APA: Sheet, W. M., & Salman, B. M. (2009). Impact of External and Internal Factors on the Behavior of Extended Aeration Activated Sludge Process. Tikrit Journal of Eng. Sciences, 16(3), 1-11.