Environmental Geochemistry and Health ( IF 3.2 ) Pub Date : 2020-10-24 , DOI: 10.1007/s10653-020-00745-6 Ítalo L Montofré 1, 2 , Elizabeth J Lam 3 , Yendery Ramírez 3, 4 , María E Gálvez 3
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Abstract
In this study, two amendments, poultry waste and ammonium nitrate, were evaluated to condition and stabilize a mine tailing and thus help the vegetation cover settle. Individually, ammonium nitrate was tested as a nitrogen source and chicken bone ash as a phosphate source. For this, laboratory tests were made on soil columns from the area to be remediated. The mobility and availability of metals and nutrients were determined by analyzing their leachates chemically. The results showed that the use of chicken bone ash decreases soluble metal concentrations, particularly in Fe and soluble Mn. On the other hand, experimental conditions proved that the acidification produced by ammonium nitrate nitrification does not significantly increase the lechate metal content. Therefore, its use for fertilization does not involve phytotoxicity risks. Regarding the availability of macronutrients as well as trace elements, the results showed that the concentrations lie within the ranges suitable for plant nutrition. So, the treatments are effective both for fertilization and phytoremediation.
Graphic abstract
中文翻译：
通过家禽废物和硝酸铵评估铜尾矿改良剂
摘要
在这项研究中，对家禽粪便和硝酸铵的两种改良剂进行了评估，以调节和稳定矿山尾矿，从而帮助植被覆盖。分别测试了硝酸铵作为氮源和鸡骨灰作为磷酸盐源。为此，在要修复区域的土壤柱上进行了实验室测试。金属和营养物的迁移率和可用性通过化学分析其沥出液来确定。结果表明，鸡骨灰的使用降低了可溶性金属的浓度，尤其是铁和可溶性锰。另一方面，实验条件证明硝酸铵硝化产生的酸化不会显着增加水ch中的金属含量。因此，将其用于施肥不涉及植物毒性风险。关于大量营养素和微量元素的有效性，结果表明该浓度在适合植物营养的范围内。因此，这些处理对于施肥和植物修复都是有效的。
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