Abstract
This study determined the ability of mixed plants of Helianthus annus, Zinnia elegans, and Impatiens balsamine to remove chromium (Cr) from soil. This research used respirometer to measure the respiration rate of microorganisms in soil media and Atomic Absorption Spectophotometry to measure Cr content on soil and plants. The results of the study showed that the plants were able to remove Cr from the soil as much as 74%. However, the removal enhanced by microbial activity on the rootzone.
Highlights
Heavy metals enter into the environment through natural and anthropogenic sources such as mining, smelting, electroplating, mud disposal, industrial disposal, and others.[1]
From the problem obtained the research idea that this study discusses the ability of mixed H. annuus, Z. elegans, and I. balsamina in removing Cr, the presence of Cr pollutants in the soil, and the addition of glucose (C6H12O6) in the soil
The reactor used in the form of 50 ml beaker glass that has been filled with cotton media as much as 3 grams
Summary
Heavy metals enter into the environment through natural and anthropogenic sources such as mining, smelting, electroplating, mud disposal, industrial disposal, and others.[1]. In this study used local plants that are easy to grow and obtain in Surabaya, namely Helianthus annuus L., Zinnia elegans L., and Impatiens balsamina L. either with individual or mixed planting arrangements. Carbon dioxide results from the respiration of microorganisms as one of the photosynthetic material of plants. World Environ., Vol 13(Special Issue 1), 22-24 (2018) 23 of microorganisms in the soil is capable of producing growth hormones namely auxin, gibberellins, and cytokinins that are capable of spurring growth and root culture so that food search areas are wider.[5] With the addition of organic matter, the biomass of microorganisms increases so as to stimulate the increase of microorganism activity. This study tested the effect of adding organic materials to microbial activity in the soil media used. It is expected to determine the ability of plant mixture to remove Cr in the soil
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