Plant Green Amaranth's phytoremediation properties

Author: Davit Sebua
Keywords: Phytoremediation, Green Amaranth
Annotation:

The modernization of the contemporary world, global development, and the excessive exploitation of valuable minerals, along with the ruthless treatment of the environment by humans, have resulted in numerous ecological problems in various countries. One of the major concerns is the contamination of soils with carcinogenic substances, which poses a significant threat to both human health and ecosystems. Consequently, it becomes imperative to implement remediation measures to address this issue. To investigate this matter, a research study was conducted in laboratory conditions, focusing on the plant Amaranda (Amaranda Viridi) and its ability to accumulate macro and micro elements from contaminated and uncontaminated soils. The plant seedlings were transplanted into pots containing both types of soils, namely contaminated and clean, serving as control samples. Throughout the experiment, the absorption characteristics of cadmium by the plant were examined, considering varying concentrations of cadmium in the soil ranging from 0.5 to 11 mg/kg. Additionally, the plant's capacity to absorb other heavy metals such as copper (Cu), zinc (Zn), as well as essential elements like potassium, phosphorus, aluminum, magnesium, calcium, iron, lead, strontium, arsenic, and molybdenum, was also studied. Based on the findings of the study, the accumulation coefficient of heavy metals in the Amaranda plant was calculated, leading to the categorization of the elements into four distinct groups. Notably, the amaranth plant exhibited a higher assimilation rate of cadmium when the soil was contaminated with concentrations ranging from 1 mg/kg to 1.5 mg/kg. Furthermore, the research revealed a regression relationship between the concentration of cadmium in the soil and zinc (R2=0.4703), arsenic (R2=0.151), copper (R2=0.1083), and aluminum (R2=0.1113). In conclusion, the study shed light on the potential of the Amaranda plant to absorb heavy metals from contaminated soils. These findings contribute to our understanding of the ecological impact of soil contamination and provide valuable insights for the development of effective remediation strategies.

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ანოტაცია ინგლისურად [en]
ანოტაცია ქართულად [ka]