PERFORMANCE EVALUATION OF UASB SYSTEM FOR TREATING SLAUGHTERHOUSE WASTEWATER

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TORKIAN A.; AMIN M.M.; MOVAHEDIAN H.; HASHEMIAN S.J.A.D.; SALEHI M.S.

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Journal: Scientia Iranica Year:2002 | Volume:9 | Issue:2 Page(s): 176-180

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Title

PERFORMANCE EVALUATION OF UASB SYSTEM FOR TREATING SLAUGHTERHOUSE WASTEWATER

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Abstract

Direct discharge of high-strength industrial effluent often upsets municipal wastewater treatment plant processes. This pilot study was undertaken to evaluate the performance of a UASB system in pre-treating effluent from a medium-size traditional slaughterhouse. Experiments were conducted in a continuous flow 500-1 pilot plant initially inoculated with 2001 municipal anaerobic digested sludge. With an influent COD concentration of 3000-5000 mg/I. the system was started with a loading of 1.8 kg COD/m3.d (F/M of 0.24 kg COD/kg VSS.d) at 25°C. The granules formed after 4 months of operation were dark brownish with a diameter of 1-4 mm and a settling velocity of 20 m/hr. Once granules were formed, up flow velocity was gradually increased to 0.8-1 m/hr (HRT of 2.5 hr) and VSS concentration reached 25 g/I. It was possible to increase the loading up to 14 kg COD/m3.d (F/M of 1.4 kg COD/VSS.d) at 29°C with total COD removal efficiencies of 85-90%. Under these conditions 250-350 I gas (75% methane) was generated for each kg COD removed.

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APA: Copy

TORKIAN, A., AMIN, M.M., MOVAHEDIAN, H., HASHEMIAN, S.J.A.D., & SALEHI, M.S.. (2002). PERFORMANCE EVALUATION OF UASB SYSTEM FOR TREATING SLAUGHTERHOUSE WASTEWATER. SCIENTIA IRANICA, 9(2), 176-180. SID. https://sid.ir/paper/289429/en

Vancouver: Copy

TORKIAN A., AMIN M.M., MOVAHEDIAN H., HASHEMIAN S.J.A.D., SALEHI M.S.. PERFORMANCE EVALUATION OF UASB SYSTEM FOR TREATING SLAUGHTERHOUSE WASTEWATER. SCIENTIA IRANICA[Internet]. 2002;9(2):176-180. Available from: https://sid.ir/paper/289429/en

IEEE: Copy

A. TORKIAN, M.M. AMIN, H. MOVAHEDIAN, S.J.A.D. HASHEMIAN, and M.S. SALEHI, “PERFORMANCE EVALUATION OF UASB SYSTEM FOR TREATING SLAUGHTERHOUSE WASTEWATER,” SCIENTIA IRANICA, vol. 9, no. 2, pp. 176–180, 2002, [Online]. Available: https://sid.ir/paper/289429/en

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