| Issue |
E3S Web of Conf.
Volume 444, 2023
4th International Conference on Agribusiness and Rural Development (IConARD 2023)
|
|
|---|---|---|
| Article Number | 04021 | |
| Number of page(s) | 10 | |
| Section | Agricultural Technology and Smart Farming | |
| DOI | https://doi.org/10.1051/e3sconf/202344404021 | |
| Published online | 14 November 2023 | |
Potential of Humic Acid from Soil to Reduce The Content of Heavy Metals
1 Departement of Soil Science and Land Resources Management, Faculty of Agriculture, Universitas Padjadjaran. Jl. Raya Jatinangor-Sumedang Km. 21, 45363, Indonesia
2 Departement of Chemistry, Faculty of Mathematics and Natural Resources, Universitas Padjadjaran, Jl. Raya Jatinangor-Sumedang Km. 21, 45363, Indonesia
3 University of Tsukuba, Japan
Humic acid is an important component for the qualities of soil with different properties or characteristics depending on the sources. The purpose of this study was to investigate the characteristics of humic acid produced from soil as a heavy metal adsorbent. This study used several methods to examine its adsorption pattern, including time incubations (20, 40, 60, 80, and 100 minutes), pH treatment (1-9), the adsorbent treatments (humic acid) with a weight ratio of adsorbent (1:2:3 and 4) also adsorption using five different heavy metals concentrations. The result showed that each treatment provides a different pattern of heavy metal uptake depending on the type of heavy metals. Humic acid from soil has good adsorption characteristics. They absorbed the greatest amount of heavy metals, particularly Pb (18.25%-98.06%), Cd (3.65%-70, 99%), and Cr (18.15%-97.52%). Furthermore, soil as a planting medium has potential to be used as a substance that can reduce heavy metal contain.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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