Non-Metabolic Uptake of Al3+by Dead Leaves of Rubus ulmifolius: Comparison With Metabolic Bioaccumulation Data.

Lodeiro, Pablo , López-García, Marta, Herrero, Luz, Barriada, José L., Herrero, Roberto, Carro, Leticia, Vilariño, Teresa, Rodríguez, Pilar and Sastre de Vicente, Manuel E. (2015) Non-Metabolic Uptake of Al3+by Dead Leaves of Rubus ulmifolius: Comparison With Metabolic Bioaccumulation Data. CLEAN - Soil, Air, Water, 44 (2). pp. 154-161. DOI 10.1002/clen.201400922.

[img] Text
Lodeiro.pdf - Published Version
Restricted to Registered users only

Download (217Kb) | Contact

Supplementary data:

Abstract

This paper reports a physicochemical study (thermodynamic and kinetic data) describing the ability of Rubus ulmifolius biomass (dead leaves) for metal uptake. The toxicity of aluminum is a major problem for crops in acidic soils and therefore, aluminum has been selected. The results obtained indicate that dead R. ulmifolius leaves uptake up to 10000mg/kg on its surface in less than 60min. This suggests that R. ulmifolius can be an excellent component with adsorbent properties for aquatic environments and in particular for amendments to be used in acidic soils in order to control aluminum levels, thus its toxicity. The results obtained have been critically analyzed and compared with literature on aluminum bioaccumulation. The application of a pseudo-second order kinetic equation, not previously used in toxicity studies, is discussed. Moreover, a good linear correlation between stability constants for Al3+ complexes with several defined ligands and the Langmuir affinity constants obtained from the corresponding adsorption isotherm has been found. Therefore, in addition to its ethno-botanical relevance, applications of R. ulmifolius as a detoxifier for aluminum in a simulated acidic gastrointestinal fluid, as phytostabilization agent in amendments or in natural attenuation cycles or as biomass for wastewater treatment containing aluminum, are suggested.

Document Type: Article
Additional Information: WOS:000369959600005
Keywords: Adsorption; Aluminum; Amendments; Biomass; Phytoremediation
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-CH Chemical Oceanography
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1002/clen.201400922
ISSN: 1863-0650
Projects: Future Ocean
Date Deposited: 04 Mar 2016 08:55
Last Modified: 19 Dec 2017 12:46
URI: http://oceanrep.geomar.de/id/eprint/31701

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...