Transformation of organic micropollutants along hyporheic flow in bedforms of river-simulating flumes.

ABSTRACT: Urban streams receive increasing loads of organic micropollutants from treated wastewaters. A comprehensive understanding of the in-stream fate of micropollutants is thus of high interest for water quality management. Bedforms induce pumping effects considerably contributing to whole stream hyporheic exchange and are hotspots of biogeochemical turnover processes. However, little is known about the transformation of micropollutants in such structures. In the present study, we set up recirculating flumes to examine the transformation of a set of micropollutants along single flowpaths in two triangular bedforms. We sampled porewater from four locations in the bedforms over 78 days and analysed the resulting concentration curves using the results of a hydrodynamic model in combination with a r

SUBMITTER: Jaeger A 

PROVIDER: S-EPMC8219703 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature