Remediating 1,4-dioxane-contaminated water with slow-release persulfate and zerovalent iron.

ABSTRACT: 1,4-dioxane is an emerging contaminant that was used as a corrosion inhibitor with chlorinated solvents. Metal-activated persulfate can degrade dioxane but reaction kinetics have typically been characterized by a rapid decrease during the first 30 min followed by either a slower decrease or no further change (i.e., plateau). Our objective was to identify the factors responsible for this plateau and then determine if slow-release formulations of sodium persulfate and Fe⁰ could provide a more sustainable degradation treatment. We accomplished this by conducting batch experiments where Fe⁰-activated persulfate was used to treat dioxane. Treatment variables included the timing at which the dioxane was added to the Fe⁰-persulfate reaction (T = 0 and 30 min) and

SUBMITTER: Kambhu A 

PROVIDER: S-EPMC5409506 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature