废水灌溉对双色高粱籽粒中部分有毒重金属浓度的影响

Mohamed M. Taher
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引用次数: 0

摘要

通过对2008-2010年3个季节在4个不同灌溉土壤区生长的4种不同灌溉方式的高粱籽粒样品进行试验设计,研究了废弃灌溉对高粱籽粒中Cu、Fe、Ni和Zn含量的影响。在第1季对两种原始土壤:历史和实验用废水灌溉的土壤(SHEwastewater)和历史和实验用井水灌溉的土壤(SHEwells water)进行了分析。对第1季和第2季的废水和井水样品进行了分析。按照文献中所用的程序,对样品进行采集、预处理、保存、微波辅助酸消解程序消解,并用ICP-AES分析金属成分。进行了质量控制,得到的%R(s)在实际样品分析的可接受范围内。两种土壤样品的铁含量差异不显著。shewell废水中Cu和Ni的含量高于shewell水,Zn的含量低于shewell水。此外,除了she废水中的镍外,两种土壤样品的金属含量并非都超过了欧盟的最高标准。污水中Cu、Fe、Ni的平均(1季和2季)含量高于井水,而Zn则相反。此外,废水和井水中所有金属离子的平均平均值均低于也门灌溉水标准。高粱籽粒分析结果表明,至少在三个季节中的两个季节,废水灌溉导致了高粱籽粒镍含量的增加。井水灌溉导致锌含量增加。此外,废水和井水灌溉对双色高粱籽粒铜和铁含量的影响无显著差异。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessing the impact of wastewater irrigation on some toxic heavy metals concentration in grains of Sorghum bicolor
The impact of waste irrigation on the concentrations of the metals Cu, Fe, Ni, and Zn contents in grains of Sorghum bicolor was investigated through analyzing (for three seasons 2008-2010) four different-irrigation sorghum grains samples grown on four different-irrigation soil areas according to the experimental design. The two original soils: Soil, historically and experimentally, irrigated with Wastewater (SHEwastewater), and Soil, historically and experimentally, irrigated with wells water (SHEwells water), were analyzed in the 1st season. Wastewater and wells water samples were analyzed in the 1 st and 2 nd seasons. According to the procedures used in the literature, Samples were collected, pretreated, preserved, digested according to the microwave assisted acids digestion procedures, and analyzed for metals by ICP-AES. Quality control was performed and %R(s) we got were in the acceptable ranges for real samples analysis. Fe contents of the two types of soil samples were not significantly different. Cu and Ni contents of SHEwastewater were higher than that of SHEwells water whereas Zn content of SHEwastewater was lower than that of SHEwells water. In addition, not all metal levels of the two types of soil samples have exceeded the upper EU standards except nickel in SHEwastewater. The average means (of 1 and 2 seasons) levels of Cu, Fe, Ni of wastewater was higher than that of wells water, but for Zn, the case is reversed. In addition, the average means of all metal ions of both wastewater and wells water was lower than Yemeni standard for irrigation water. Sorghum grains analysis results, for at least two of the three seasons, indicated that: wastewater irrigation resulted in an increase of nickel content of grains of Sorghum bicolor. Wells water irrigation resulted in an increase in zinc content. In addition, there is no significant difference between the effect of wastewater and wells water irrigation on copper and iron contents of grains of Sorghum bicolor.
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