首页|Biological treatment of produced water;; A comprehensive review and metadata analysis
Biological treatment of produced water;; A comprehensive review and metadata analysis
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A metadata analysis was conducted to analyze the impact of several operating conditions on the biological removal of chemical oxygen demand (COD) from produced water (PW). Operating conditions including temperature, salinity, oxygen availability, treatment technology, microorganism type, and treatment scale were investigated. No limiting maximum COD elimination capacity was reported in the literature, signaling the need to experiment with higher COD concentrations at reduced retention times to identify if such a limit exists. The maximum recorded COD elimination capacity of PW was achieved under low salinity and aerobic conditions in a membrane bioreactor using oil-degradation bacteria on a laboratory scale. Suspended growth exhibited maximum COD removal efficiency, and membrane bioreactors were the most studied technique and achieved the highest performance. Superior COD removal efficiency was realized under hypersaline conditions;; however, the COD removal efficiency under freshwater conditions was higher than that under hypersaline conditions.
Mohammed A. Abujayyab、Mohamed Hamouda、Ashraf Aly Hassan
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Civil and Environmental Engineering, United Arab Emirates University, P.O. Box 15551, Al Ain, Abu Dhabi, United Arab Emirates
Civil and Environmental Engineering and the National Water and Energy Center, United Arab Emirates University, P.O. Box 15551, Al Ain, Abu Dhabi, United Arab Emirates
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