Anaerobic prokaryotic processes drive manganese release in a drinking water reservoir.

ABSTRACT:

Introduction

Elevated manganese (Mn) concentrations in drinking water reservoirs present challenges for raw water treatment. During thermal stratification, a shift from oxic to anoxic conditions at the sediment-water interface intensifies the release of dissolved Mn into the water column.

Methods

High-throughput amplicon sequencing of 16S rRNA genes was used to identify the prokaryotic community in sediments of the Wahnbach Reservoir, examining abundance, diversity, and potential metabolic processes concerning key physicochemical parameters. In addition, cultivation-based methods clarified the role of Mn cycling and related biogeochemical processes.

Results

Sediment analyses revealed high sedimentary Mn contents and elevated Mn²⁺ concentrations in pore wate

SUBMITTER: Hahn L 

PROVIDER: S-EPMC12569786 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature