title: Comparison of mineral-based amendments for ex-situ stabilization of trace elements (As, Cd, Cu, Mo, Ni, Zn) in marine dredged sediments: a pilot-scale experiment.
abstract: Trace element pollution of marine dredged sediments is an emerging problem all over the world. Comparing to other wastes, trace elements stabilization is more difficult both due to the wide range of contaminants present in the marine sediments and their inherent physicochemical properties. In this study, a pilot-scale experiment was performed to stabilize As, Cd, Cu, Mo, Ni, and Zn in a multi-contaminated sediment sample using hematite, zero-valent iron and zeolite. Results showed that iron-based amendments were able to reduce the leaching and the bioavailability of trace elements in the sediment sample, while zeolite was unsuitable. Chemical stabilization through iron-based amendments seems to be a promising approach as a low-cost alternative to traditional stabilization methods involving chemical reagents.
authors.affiliation: University of Nice Sophia Antipolis, ECOMERS, Nice, France. yannickpajany@hotmail.com
authors.forename: Yannick
authors.initials: Y
authors.lastname: Mamindy-Pajany
authors.forename: Charlotte
authors.initials: C
authors.lastname: Hurel
authors.forename: Florence
authors.initials: F
authors.lastname: Geret
authors.forename: Michèle
authors.initials: M
authors.lastname: Roméo
authors.forename: Nicolas
authors.initials: N
authors.lastname: Marmier
mesh_terms: D048908:Aliivibrio fischeri / Q000187:drug effects / Q000378:metabolism; D001151:Arsenic / Q000737:chemistry* / Q000633:toxicity; D004553:Electric Conductivity; D052918:Environmental Restoration and Remediation / Q000379:methods*; D005290:Ferric Compounds / Q000737:chemistry; D019015:Geologic Sediments; D007501:Iron / Q000737:chemistry; D049449:Luminescence; D019216:Metals, Heavy / Q000737:chemistry* / Q000633:toxicity; D010865:Pilot Projects; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000633:toxicity; D017641:Zeolites / Q000737:chemistry
chemical_list: D005290:Ferric Compounds; D019216:Metals, Heavy; D014874:Water Pollutants, Chemical; D017641:Zeolites; C000499:ferric oxide; D007501:Iron; D001151:Arsenic