Study of Kinetic coefficients of a Membrane Bioreactor (MBR) for municipal wastewater treatment

Naghizadeh, Ali; Derakhshani, Elham; Yari, Ahmad Reza

Volume 2, Issue 3 (Summer 2013 2013) Arch Hyg Sci 2013, 2(3): 98-103 | Back to browse issues page

‎ 20.1001.1.22519203.2013.2.3.4.6

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Naghizadeh A, Derakhshani E, Yari A R. Study of Kinetic coefficients of a Membrane Bioreactor (MBR) for municipal wastewater treatment. Arch Hyg Sci 2013; 2 (3) :98-103
URL: http://jhygiene.muq.ac.ir/article-1-127-en.html

Study of Kinetic coefficients of a Membrane Bioreactor (MBR) for municipal wastewater treatment

Ali Naghizadeh ^*

¹, Elham Derakhshani²

, Ahmad Reza Yari³

1- Birjand University of Medical Sciences
2- Shahid Beheshti University of Medical Sciences
3- Qom University of Medical Sciences

Abstract: (3622 Views)

Background & Aims of the Study: In order to design membrane bioreactors (MBR) properly, it is essential to comprehend the behavior of microorganisms in such wastewater treatment processes.

Materials & Methods: In this study, a lab-scale MBR process was operated to determine the biokinetic coefficients of the MBR system under different MLSS concentrations of 6800, 7000, 7400, and 7800 mg/l and organic loading rates of 0.5 kg COD/m³/day.

Results: The results of this study showed that the yield of microorganisms (Y), the endogenous decay coefficient (k_d), the maximum specific growth rate (μ_max) and the saturation constant (K_s) were in the range of 0.67 g VSS/g COD, 0.56 d^−1, 1.86 d^−1 and 6.65 mg COD/l, respectively.

Conclusions: The kinetic coefficients in this study can be used to improve the operation and design the MBR system in full scale.

Keywords: Biokinetic coefficient, Membrane bioreactor, municipal wastewater

Full-Text [PDF 537 kb] (1813 Downloads)

Type of Study: Original Article | Subject: General
Received: 2016/05/14 | Accepted: 2016/05/14 | Published: 2016/05/14