Document Type : Research Paper

Authors

1 Ph.D. Scholar, Department of Water Science and Engineering, Faculty of Agriculture and Natural Resources, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

2 Assist. Professor of Water Science and Engineering, Faculty of Agriculture and Natural Resources, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

3 Assist. Professor, Department of Agriculture and Natural Resources, Faculty of Agriculture and Natural Resources, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran

Abstract

The use of natural processes, including the physiological potential of plants, is a suitable solution. In this study in order to assess the effect of waste leachate and industrial wastewater on the absorption of heavy metals by the Vetiver plant, two separate factorial experiments were performed in the crop year 2020-2021 as a completely randomized design. Experiment treatments factors included waste leachate and industrial wastewater use separately on 5 levels (0, 25, 50, 75, and 100%) in three replications (B1, B2, B3) and two irrigation periods of 5 and 10 days (A5, A10). The amount of iron, zinc, copper, manganese, potassium, and sodium measured in vetiver showed waste leachate had a significant effect at the level of 5% (P <0.05). Meanwhile, the use of industrial wastewater had a significant effect on the amount of iron, zinc, copper, manganese, and sodium absorbed by the vetiver at the level of 5% (P <0.05) but it had no significant effect on the potassium amount (P> 0.05). R4A1 and W5A1 treatments showed a relatively good response with a decrease in biomass production below 10% compared to the control treatment. According to the results, the Vetiver species has relatively high compatibility in the absorption of heavy metals with unconventional waters and can have a special application for soil and water protection.

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Main Subjects

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