The Effect of Hinokitiol and Lemna Minor on the Removal of Heavy Metals from Water

Overview

Around the world, water pollution continues to be a prominent problem in wastewater. Contaminated water presents a major environmental and human health problem. The use of plants for the removal of heavy metals from polluted areas has become an important topic over the past few years. Lemna minor(duckweed) has properties that increase absorption of iron, copper, and zinc from contaminated water. Separate research on hinokitiol, an extract from a cypress tree, indicates the ability for iron transport across several mediums. Combining these two natural substances could lead to important discoveries. This research tests the effect of hinokitiol in combination with duckweed to remove copper, iron, and zinc from water. To test this, seven different solutions were added to them as experimental groups. For each experimental group, ten trials were used for accurate results. After the duckweed were placed in their experimental groups. After 8 days of monitored growth, the number of fronds and the metal levels in the plant and water were recorded. In all the cases, the number of fronds increased, the metal level in the plants increased, and the metal level in the water decreased. Nevertheless, duckweed and hinokitiol made the most significant difference in the iron solution, with an 86% improvement in iron removal. Statistical analysis of the data produced p-values less than 0.001, proving the data is significant. Therefore, this research study shows the environmental benefit of using hinokitiol and duckweed as remover of heavy metals, especially for the removal of iron from water.

Competition history

• AJAS 2019 Category not listed

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