Bioavailability of Cu and Zn in raw and anaerobically digested pig slurry
Bioavailability of Cu and Zn in raw and anaerobically digested pig slurry
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DOI：
10.1016/j.ecoenv.2008.12.010
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发表时间：
2009-07-01
影响因子：
6.8
通讯作者：
Guiresse, Maritxu
中科院分区：
文献类型：
--
作者：
Marcato, Claire-Emmanuelle;Pinelli, Eric;Guiresse, Maritxu
研究了厌氧消化对猪浆中铜和锌生物利用度的影响。分别对原料料浆（RS）和厌氧消化猪料浆（DS）进行了化学处理和生物处理。本研究使用厌氧处理前后同一猪浆的超离心颗粒，证实了Cu和Zn在生物利用度方面的表现不同，并通过化学和生物评估获得了对比结果。化学方法结合了pH对颗粒/溶解金属分配、顺序萃取和生化分馏的影响的初步研究。这种方法倾向于显示金属从消化浆（DS）的低迁移率。以玉米和蚕豆为材料，采用生物学方法研究了RS和DS改良土壤对Cu和Zn的吸收。该试验不能区分这两种浆液。(C) 2009年Elsevier Inc.出版。
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.