Influence of filter backwashing on iron, manganese, and ammonium removal in dual-media rapid sand filters used for drinking water production
Alje S. Boersma, Signe Haukelidsaeter, Liam Kirwan, Alessia Corbetta, L. Vos, Wytze K. Lenstra, Frank Schoonenberg, Karl Borger, Paul W. J. J. van der Wielen, Maartje A. H. J. van Kessel, Caroline P. Slomp, Sebastian Lücker
Abstract
oxidation, respectively. The nitrifying community of the anthracite consisted of Nitrosomonas, Candidatus Nitrotoga, and Nitrospira. In contrast, the nitrifying community in the sand layer was dominated by Nitrospira. Backwashing minimally affected the microbial community composition of the filter medium except for Gallionella, which were preferentially washed out. In conclusion, our research offers a molecular and geochemical basis for understanding how backwashing influences the performance of rapid sand filters.
Topics & Concepts
BackwashingManganeseFilter (signal processing)Pulp and paper industryFiltration (mathematics)AmmoniumChemistryEnvironmental engineeringEnvironmental scienceSand filterDual (grammatical number)Water treatmentEnvironmental chemistryWaste managementWastewaterGeologyEngineeringMathematicsOceanographyInletElectrical engineeringOrganic chemistryArtStatisticsLiteratureWater Treatment and DisinfectionConstructed Wetlands for Wastewater TreatmentGroundwater and Isotope Geochemistry