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IJSTR >> Volume 6 - Issue 7, July 2017 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Computer Aided Design Of Conventional Activated Sludge Treatment Plant

[Full Text]

 

AUTHOR(S)

S.A. Raji, K.J Olaleye, M.O Adebisi, D.N Nwadike

 

KEYWORDS

Conventional Activated Sludge, BOD, Sewage, Aeration period, Sludge Retention Time and Return Sludge Ratio.

 

ABSTRACT

Carrying out a design on a conventional Activated Sludge Plant under several conditions and various criteria is becoming complex, tedious and cumbersome. The era of Computer has resulted in a faster, accurate, and more advanced method of obtaining data, storage, processing and analysis. Several tools are being developed to design and solve various engineering problems and environmental engineering field is no exception. Some packages have been developed in this area in basic, C - language, visual basic etc. This research focuses on the full design of a conventional Activated Sludge Plant. Some of the components developed include: Daily Sewage Flow, BOD of Sewage entering the aeration, BOD left in Effluent, BOD removed in Activated Plant, Efficiency required in Activated Plant, Rate of air supply, secondary sedimentation tank and Sludge drying beds. Design for the checks was also developed. Some of the checks include: Aeration Period, Sludge Retention Time, Volumetric Loading and Return Sludge Ratio. Visual Basic Package was adopted for the design.

 

REFERENCES

[1] G.S. Bajwa, Practical handbook on public health engineering, 2nd Edn., Surabh publisher, New Delhi, 3, (2003).

[2] J. P. Ganote, and D. Dohare, (2015) “Computer Aided Hydraulic Process Design of Conventional Water Treatment Plant without and with Upgradation”. Department of Environment Engineering, Shri Govindram Seksaria Institute of Technology and Science, Indore (INDIA).

[3] S.K.Garg, Water supply Engineering, 11th Eds., Khanna Publishers, New Delhi, 129-135, (1999).

[4] H.B. Harlon, (2011) “Activated Sludge Calculations with Excel”. PDH Enterprises, LLC. Morrisville.

[5] IS-10500:1991, drinking water Specifications, Bureau of Indian Standard Institutions, New Delhi, (1991).

[6] M. Oswaldo (1987) “Design of The-Step-Feed activated Sludge Process”. M.Eng Thesis, Department of Civil Engineering and Applied Mechanics. McGill Univeràity. Montreal, Canada.

[7] R. Snyder, and D. Wynner, (2009) “Activated Sludge Process Control; Training Manual for Wastewater Treatment Plant Operators”. State of Michigan Department of Environmental Quality. 800-662-9278 Environmental Assistance Center.