Influences of Coal Ash Leachates and Emergent Macrophytes on Water Quality in Wetland Microcosms.

ABSTRACT: The storage of coal combustion residue (CCR) in surface water impoundments may have an impact on nearby water quality and aquatic ecosystems. CCR contains leachable trace elements that can enter nearby waters through spills and monitored discharge. It is important, therefore, to understand their environmental fate in affected systems. This experiment examined trace element leachability into freshwater from fly ash (FA), the most common form of CCR. The effects on water quality of FA derived from both high and low sulfur coal sources as well as the influences of two different emergent macrophytes, Juncus effusus and Eleocharis quadrangulata, were evaluated in wetland microcosms. FA leachate dosings increased water electric conductivity (EC), altered pH, and, most notably, elev

SUBMITTER: Olson LH 

PROVIDER: S-EPMC6261303 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature