Location
SPREP LIBRARY
Publisher
University of Plymouth
Elsevier Ltd.
Publication Year:
2011
Publication Place
United Kingdom
Physical Description:
6p. : 29cm.
Call Number
VF 7814
Collection
Material Type
Language
English
Record ID:
41072
Legacy PEIN ID:
81156
General Notes
1 copy
Subject Heading(s)
Plastic pellets - Traces metals
Adsorption - Kinetics - Seawater
Marine pollution - Adsprtion - Metalsq
Abstract
Plastic production pellets collected from beaches of south west England contain variable concentrations of trace metals (Cr, Co, Ni, Cu, Zn, Cd and Pb) that, in some cases, exceed concentrations reported for local estuarine sediments. The rates and mechanisms by which metals associate with virgin and beached polyethylene pellets were studied by adding a cocktail of 5 mg L1 of trace metals to 10 g L1 pellet suspensions in filtered seawater. Kinetic profiles were modelled using a pseudo-first-order equation and yielded response times of less than about 100 h and equilibrium partition coefficients of up to about 225 ml g1 that were consistently higher for beached pellets than virgin pellets. Adsorption isotherms conformed to both the Langmuir and Freundlich equations and adsorption capacities were greater for beached pellets than for virgin pellets. Results suggest that plastics may represent an important vehicle for the transport of metals in the marine environment.
Location
SPREP LIBRARY
Publisher
University of Plymouth
Elsevier Ltd.
Publication Year:
2011
Publication Place
United Kingdom
Physical Description:
6p. : 29cm.
Call Number
VF 7814
Collection
Material Type
Language
English
Record ID:
41072
Legacy PEIN ID:
81156
General Notes
1 copy
Record Created: 31-Jan-2017
Record Modified: 17-Dec-2020