Modification of the Multi-Stage Treatment (Anaerobic- Anoxic- Oxic) by Adding Almond Shells as Biological Carriers
Raghad Alshalabi,
Rasin Zakieh,
Naeima Ajib
Abstract:In this study, the treatment process Anaerobic- Anoxic- Oxic (A2O) was modified by adding almond shells as biological carriers. The performance of it has been evaluated in two groups for simultaneous removal of organic matter and nutrients (nitrogen and phosphorous) from wastewater. In both groups the hydraulic retention time (HRT) was 12.5 hours and mixed liquor suspended solid (MLSS) was 2000 mg/L. In the first group: The Oxic bioreactor was filled with packing up to 7% on an effective volume basis. In the s… Show more
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