The potential of a moving bed biofilm reactor (MBBR) in full scale has been investigated as an alternative for upgrading of the Kish Island Markazi wastewater treatment plant. In this regard, the activated sludge process (ASP) upgraded to an MBBR process and different operating parameters results in this change compared with ASP. Results show that with increasing the average flow influent from 1,049 ± 88 to 1,944 ± 275 m3 d−1 and reducing the aeration tank volume from 300 to 150 m3, organic loading rate (OLR), mixed liquor suspended solids (MLSS), sludge retention time (SRT), sludge volume index (SVI), hydraulic loading rate (HLR) and hydraulic retention time (HRT) were changed to 0.32 ± 0.04–1.8 ± 0.36 kg COD/m3d, 2,641.19 ± 284.99–7,354.2 ± 778.35 mg L−1, 5.28 ± 0.64–22.1 ± 1.53 d, 135 ± 37.3–29.2 ± 3.81, 23.14 ± 1.94–43.37 ± 5.04 m d−1 and 2.76 ± 0.22–1.48 ± 0.18 h, respectively. Effluent concentrations under this operation condition were well below the discharge limits for irrigation water. Therefore, the MBBR process is a good alternative for upgrading wastewater plants especially when there is inadequate space or modifications are needed that will require large investment.
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Research Article|
December 01 2011
Upgrading of Kish Island Markazi wastewater treatment plant by MBBR
Mehdi Ahmadi
;
1
Environmental Technology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran and Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
E-mail: Ahmadi241@yahoo.com
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Hassan Izanloo
;
Hassan Izanloo
2
Research Center for Environment Pollutants and Department of Environmental Health Engineering, Qom University of Medical Sciences, Qom, Iran
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Aliakbar Mehr alian
;
Aliakbar Mehr alian
3
Department of Environmental Engineering, Bandar Abbas Science and Research Branch, Islamic Azad University, Bandar Abbas, Iran
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Hoda Amiri
;
Hoda Amiri
4
Department of Environmental Health Engineering, Alborz University of Medical Sciences, Karaj, Iran
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Mohammad Noori Sepehr
Mohammad Noori Sepehr
4
Department of Environmental Health Engineering, Alborz University of Medical Sciences, Karaj, Iran
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Journal of Water Reuse and Desalination (2011) 1 (4): 243-249.
Article history
Received:
March 15 2011
Accepted:
September 13 2011
Citation
Mehdi Ahmadi, Hassan Izanloo, Aliakbar Mehr alian, Hoda Amiri, Mohammad Noori Sepehr; Upgrading of Kish Island Markazi wastewater treatment plant by MBBR. Journal of Water Reuse and Desalination 1 December 2011; 1 (4): 243–249. doi: https://doi.org/10.2166/wrd.2011.038
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Mehdi Ahmadi, Hassan Izanloo, Aliakbar Mehr alian, Hoda Amiri, Mohammad Noori Sepehr; Upgrading of Kish Island Markazi wastewater treatment plant by MBBR. Journal of Water Reuse and Desalination 1 December 2011; 1 (4): 243–249. doi: https://doi.org/10.2166/wrd.2011.038
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