research regarding the accumulation in soybeans of heavy metals from anaerobic composted sewage sludge used as organic fertilizer

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ID: 198143
2010
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Abstract
In sewage sludge from urban wastewater treatment stations can often be find high levels of Ni, Pb, Cu, Zn, Mn andCd. Aerobic or anaerobic composting of this sewage sludge does not eliminate the possibility of bioaccumulation ofthese metals in plants through metabolic processes of phytoextraction type. Researches regarding the accumulationdegree of heavy metals through phytoextraction processes were performed on soybean plants (Glycine max), Condorvariety. Plants were fertilized with anaerobic composted sludge in amounts of 25 t of / ha, 50 t / ha and 100 t / ha.The chemical analysis was done on an average sample of three repetitions. Metal concentration in soybeans wasanalyzed by reporting to the maximum allowance level for sheep, considered one of the most sensitive farm speciesto heavy metal toxicity. Our results showed a higher level than normal with 5.8 mg / kg only in the case of copperions. Zn, Pb, Mn and Cd concentration in soybeans was below the maximum allowance limits set by the rules offeeding farm animals. Also, heavy metal content of soybeans was not affected by the amount of composted sludgeused as fertilizer.
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lixandru2010scientificresearch Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Benoni Lixandru;Viorel Pătroescu;Elisabeta Pena Leonte;Neculai Dragomir;Anca Pricop;Smaranda Mâşu;Florica Morariu;Dumitru Popescu
Journal Enzyme and microbial technology
Year 2010
DOI
DOI not found
URL
http://spasb.ro/index.php/spasb/article/view/833
Keywords
heavy metals bioaccumulation soybeanagriculturetechnologyscience

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