Phytoremediation of cyanide contaminated soil from Muteh gold mine by using sorghum bicolor

Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

BIOCONF20_219

تاریخ نمایه سازی: 28 اردیبهشت 1398

Abstract:

Soil contamination with industrial pollutants has giving rise to concern for humans and other living organisms. Although cyanide (CN) is highly toxic and dangerous substance, it is economically attractive for extracting gold from ore bodies and it has been of great interest to researchers in the last decades. Phytoremediation is a costeffective plant-based approach of remediation that takes advantage of the ability of plants to concentrate elements and compounds from the environment and to metabolize various molecules in their tissues. Phytoremediation can be used to clean up cyanide in the environment and soil. In the present study, the effects of different concentrations of cyanide on biochemical responses (changes in protein and proline levels in the plant) and tolerance in Sorghum bicolor are analysed. In this research, wastewater was prepared and concentrated after mixing with normal soil. After completing the vegetative period, cyanide, protein and proline changes were measured and Performance data was analysed with spss software and comparison multiple range test of means with Duncan test. The analysis of cyanide reduction data and its accumulation in the plant showed that the Phytoremediation is a suitable method for clean-up cyanide contaminated soils, and the absorption of cyanide by the plant causes biochemical changes (increased in protein and proline level) and reduces the amount of cyanide in the contaminated soil. S. bicolor could grow in 12.69 grams per kilogram of cyanide which resulted in approximately 50% cyanide from the wastewater, so increased the protein and proline level. S. bicolor provided the highest phytoremediation efficiency Thus, this study recommends using Sorghum bicolor for phytoremediation of cyanide in gold mine areas.

Authors

Akram Shokouhian ghahfarokhi

Department of Biology Nour Danesh institute of Higher Education. Mimeh.Iran

Mohammad Reza Zamani,

Department of Biology Nour Danesh institute of Higher Education. Mimeh.Iran

Fatemeh Heidaryan Naenini

Department of Biology Nour Danesh institute of Higher Education. Mimeh.Iran

Alireza Mansoorian

Department of Biology Nour Danesh institute of Higher Education. Mimeh.Iran