Title: The effect of BOD5 and flow-rate of activated sludge systems on investment and energy costs

Authors: Ahmet Altin, Sureyya Altin, Birol Elevli, Mustafa Degirmenci, Ali Kemal Ozdemir

Addresses: Zonguldak Karaelmas University, Engineering Faculty, Department of Environmental Engineering, Sivas, Turkey. ' Zonguldak Karaelmas University, Engineering Faculty, Department of Environmental Engineering, Sivas, Turkey. ' Dumlupinar University, Engineering Faculty, Department of Mining Engineering, Kutahya, Turkey. ' Cumhuriyet University, Engineering Faculty, Department of Environmental Engineering, Sivas, Turkey. ' Cumhuriyet University, Dentistry Faculty, 58140-Sivas, Turkey

Abstract: In this study of wastewater treatment, the effect of flow-rate, BOD5 and other design parameters (MLSS, mean cell-residence time, etc.) on aeration tank dimensions, investment amount and energy cost has been investigated. The relations among these parameters are represented with mathematical equations, which could be useful in new plant design and in the estimation of investment and energy costs.

Keywords: aeration tank; BOD5; energy cost; flow-rate; investment; wastewater treatment; activated sludge; flow rate; design parameters; wastewater characteristics.

DOI: 10.1504/IJEP.2005.007605

International Journal of Environment and Pollution, 2005 Vol.23 No.4, pp.425 - 437

Published online: 19 Aug 2005 *

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