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Low strength wastewater treatment with combined granular anaerobic and suspended aerobic cultures in upflow sludge blanket reactors
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Date
2008-04-01
Author
Bayramoğlu, Tuba Hande
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Combined cultures were developed from anaerobic granular and suspended aerobic cultures in three upflow sludge blanket reactors aerated at 10 mL air/min 4 h/day R2, every other day R3, and 24 h/day R4. The use of combined cultures was found to be advantageous compared to the anaerobic granules for the treatment of low-strength wastewaters. During municipal wastewater treatment at influent 5-day biochemical oxygen demand BOD5 concentration of 53– 118 mg/L hydraulic retention time: 0.75 day, combined cultures in R2, R3, and R4 exhibited average BOD5 removal efficiencies of 52, 75, and 76%, respectively. The use of these cultures might be proposed as an alternative for municipal wastewater treatment due to their advantages such as achievement of required discharge standards, prevention of biomass loss/settleability problems unlike activated sludge systems and possible methanogenic activity, as well as high settling characteristics comparable to those of anaerobic granules.
Subject Keywords
Environmental Engineering
,
Civil and Structural Engineering
,
General Environmental Science
,
Environmental Chemistry
URI
https://hdl.handle.net/11511/34309
Journal
Journal Of Environmental Engineering-Asce
DOI
https://doi.org/10.1061/(asce)0733-9372(2008)134:4(295)
Collections
Department of Environmental Engineering, Article
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T. H. Bayramoğlu, “Low strength wastewater treatment with combined granular anaerobic and suspended aerobic cultures in upflow sludge blanket reactors,”
Journal Of Environmental Engineering-Asce
, pp. 295–303, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34309.