Abstract
AbstractThe Dresden-Hosterwitz water utility works operates five open managed aquifer recharge (MAR) basins supplied with pretreated Elbe River water and is located on the floodplain of the Elbe River. The quaternary aquifer consists of sand and gravel, and has a thickness of 9–14 m. The infiltration of untreated river floodwater and its effects on basin clogging and pathogen removal were investigated within a risk-based framework. Column experiments were performed to simulate infiltration in the basin during a flood event. Three vertical profiles were evaluated, which ranged from coarse filter sand to sandy gravel, and installed in sequence in an experimental flow-through column setup. Turbidity, total coliform, and E. coli were measured in the inflow and outflow at infiltration rates from 0.8–3.6 m/day. Experimental data was supplemented with clogging and pathogen measurements at the basin during a flood event, and infiltration of untreated river floodwater. The hydraulic conductivity of the filter san...
Published Version
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