How to Form Aggregates of Free Anammox Bacteria to Improve Sedimentation Performance

نویسندگان

چکیده

Free anammox bacteria are superior in growth rate, but poor sedimentation performance limits their application sewage treatment. In this study, we investigated how to form aggregates of free improve performance. Calcium addition tests proved that could aggregate and a larger entirety with better through calcium cross-linking alginate-like exopolysaccharides (ALEs). This was indicated by the particle size increasing 411.45% (measured supernatant transmittance) 195.35% after adding for 12 h. Soluble extracellular polymeric substance (S-EPS) extraction freeze–thaw testing elucidated providing more sites can strengthen cross-linking, as 158.57% 394.80%, respectively. Static experiments showed time equally important. The improved longer static times under no severe external disturbances, 324.61% improvement 84 However, burst activity disappeared Based on above test results, potential method forming proposed: extract S-EPS centrifugation first, add calcium, keep sludge from hydraulic interference.

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ژورنال

عنوان ژورنال: Water

سال: 2023

ISSN: ['2073-4441']

DOI: https://doi.org/10.3390/w15101836