Assessing the impact of wastewater irrigation on cobalt cadmium and lead contents of grains of Sorghum bicolor

Mohamed M. Taher, Mahfoudh M. S. Al-Hammadi
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Abstract

The impact of waste irrigation on the concentrations of the metals Cd, Co and Ni contents in grains of Sorghum bicolor was investigated through analyzing (for three seasons 2008-2010s) four different-irrigation sorghum grains samples grown on four different-irrigation soil areas according to the experimental design. Two original soils: Soil, historically and experimentally, irrigated with Wastewater (SHEwastewater), and Soil, historically and experimentally, irrigated with wells water samples were analyzed in the 1st and 2nd 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 have gotten were good for real samples analysis. Cd and Pb metal contents of the two types of the original soil samples were not significantly different. In addition, these metal contents of the two types of soil samples have not exceeded the upper EU standards. The average means (of 1st and 2nd seasons) levels of Cd and Pb of wastewater were higher than that of wells water. In addition, the average means of these 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 in Cd and Pb contents of grains of Sorghum bicolor. Moreover, there is no significant difference between the effect of wastewater and wells water irrigation on Co content of grains of Sorghum bicolor.
废水灌溉对双色高粱籽粒钴、镉、铅含量的影响
根据试验设计,对4个不同灌溉土壤区4个不同灌溉方式的高粱籽粒样品(2008-2010年3个季节)进行分析,研究了废弃灌溉对高粱籽粒中重金属Cd、Co和Ni含量的影响。分析了两种原始土壤:历史上和实验上用废水灌溉的土壤(SHEwastewater),以及历史上和实验上用井水样品灌溉的土壤(Soil)。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)可用于实际样品的分析。两种原始土壤样品的金属镉、铅含量差异不显著。此外,这两种土壤样品的金属含量均未超过欧盟最高标准。1、2季废水中Cd、Pb的平均值均高于井水。此外,废水和井水中这些金属离子的平均平均值低于也门灌溉水标准。高粱籽粒分析结果表明,至少在三个季节中有两个季节,废水灌溉导致双色高粱籽粒Cd和Pb含量升高。废水灌溉与井水灌溉对双色高粱籽粒Co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。
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