Bioavailability of Cu and Zn in raw and anaerobically digested pig slurry

被引：108

作者：

Marcato, Claire-Emmanuelle ^{[1
]}

Pinelli, Eric ^{[1
]}

Cecchi, Marie ^{[1
]}

Winterton, Peter ^{[2
]}

Guiresse, Maritxu ^{[1
]}

机构：

[1] Univ Toulouse, Lab Ecol Fonct EcoLab, CNRS UPS INPT, UMR 5245, F-31250 Castanet Tolosan, France

[2] Univ Toulouse 3, F-31062 Toulouse 09, France

来源：

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY | 2009年 / 72卷 / 05期

关键词：

Anaerobic digestion; Maize; Broad bean; Availability; Risk assessment; SEWAGE-SLUDGE COMPOSTS; ZEA-MAYS-L; HEAVY-METALS; PLANT AVAILABILITY; PARTICLE-SIZE; WASTE-WATER; SOIL; COPPER; FRACTIONATION; MANURE;

D O I：

10.1016/j.ecoenv.2008.12.010

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The impact of anaerobic digestion on the bioavailability of copper and zinc from pig slurry was assessed. Both chemical and biological approaches were used independently on raw slurry (RS) and anaerobically digested pig slurry (DS). This work, using ultracentrifugation pellets from the same pig slurry before and after an anaerobic treatment, confirmed that Cu and Zn behave differently in terms of bioavailability, and contrasting results were obtained by chemical and biological assessments. A chemical approach combined a preliminary study of the pH effect on particulate/dissolved metal partitioning, sequential extraction, and biochemical fractionation. This approach tended to show a lower mobility of metals from digested slurry (DS). A biological approach was carried out with Zea mays and Vicia faba to study Cu and Zn uptake in soil amended with RS or DS. This assay could not differentiate the two slurries. (C) 2009 Published by Elsevier Inc.

引用

页码：1538 / 1544

页数：7

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