Determination of Biokinetic Coefficients for the Extended Aeration Activated Sludge System Treating Hospital Effluents in Hot Climate Conditions

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TAKDASTAN AFSHIN; KORDESTANI BAHAREH; NEISI ABDOL KAZEM; Jalilzadeh Yangejeh Reza

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Journal: WATER AND WASTEWATER Year:2017 | Volume:28 | Issue:2 (108) Page(s): 97-103

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Title

Determination of Biokinetic Coefficients for the Extended Aeration Activated Sludge System Treating Hospital Effluents in Hot Climate Conditions

Author(s)

TAKDASTAN AFSHIN | KORDESTANI BAHAREH | NEISI ABDOL KAZEM | Jalilzadeh Yangejeh Reza | Issue Writer Certificate

Keywords

Hospital Wastewater TreatmentQ1

Activated SludgeQ3

Extended AerationQ3

Kinetic CoefficientsQ2

Abstract

Hospital effluents are regarded as a kind of municipal wastewater laden with additional pollutants due to the variety of wards and therapeutic activities in a hospital. This makes the determination of Kinetic Coefficients and parameters of utmost importance for the successful operation and maintenance of Hospital Wastewater Treatment facilities. Extended Aeration Activated Sludge is one of the most important processes employed in such facilities. The present study is an effort to determine these parameters for the operation of such a facility operating in hot climate conditions. For this purpose, samples of both hospital raw wastewater and plant effluent were taken during a 6-month period from January to June 2014 to determine their BOD5, COD, TSS, PH, and Turbidity. Moreover, MLSS, MLVSS, and DO in the aeration tank as well as the sludge return ratios were measured. Such operation and maintenance parameters as θ c, F/M, and SVI were then calculated and the equations of the modified Monod Model were used to calculate the values of the Kinetic Coefficients such as Y, K, KS, Kd, and µ max for the Extended Aeration Activated Sludge process at the Hospital Wastewater Treatment plant as follows: K= 2. 19 d-1, Ks=90. 74 mg/l, Y = 0. 39 g Biomass/g BOD5, Kd = 0. 06 d-1, and µ max =0. 85 d-1. The results obtained can be usefully exploited for designing similar Extended Aeration Activated Sludge processes for the treatment of hospital effluents, especially for those operating in hot climates.

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APA: Copy

TAKDASTAN, AFSHIN, KORDESTANI, BAHAREH, NEISI, ABDOL KAZEM, & Jalilzadeh Yangejeh, Reza. (2017). Determination of Biokinetic Coefficients for the Extended Aeration Activated Sludge System Treating Hospital Effluents in Hot Climate Conditions. WATER AND WASTEWATER, 28(2 (108) ), 97-103. SID. https://sid.ir/paper/103635/en

Vancouver: Copy

TAKDASTAN AFSHIN, KORDESTANI BAHAREH, NEISI ABDOL KAZEM, Jalilzadeh Yangejeh Reza. Determination of Biokinetic Coefficients for the Extended Aeration Activated Sludge System Treating Hospital Effluents in Hot Climate Conditions. WATER AND WASTEWATER[Internet]. 2017;28(2 (108) ):97-103. Available from: https://sid.ir/paper/103635/en

IEEE: Copy

AFSHIN TAKDASTAN, BAHAREH KORDESTANI, ABDOL KAZEM NEISI, and Reza Jalilzadeh Yangejeh, “Determination of Biokinetic Coefficients for the Extended Aeration Activated Sludge System Treating Hospital Effluents in Hot Climate Conditions,” WATER AND WASTEWATER, vol. 28, no. 2 (108) , pp. 97–103, 2017, [Online]. Available: https://sid.ir/paper/103635/en

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