Study on the Behavior and Removal of Cadmium and Zinc Using Taraxacum officinale and Gazania under the Application of Biodegradable Chelating Agents
| Autor: | David Eva Vanessa Anak, Naoki Kano, Naoto Miyamoto, Takumi Hori, Haixin Zhang, Kenji Mishima |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Gazania
cadmium chemistry.chemical_element Zinc phytoremediation 010501 environmental sciences lcsh:Technology 01 natural sciences lcsh:Chemistry 03 medical and health sciences chemistry.chemical_compound EDDS Taraxacum officinale metal recovery General Materials Science Chelation lcsh:QH301-705.5 Instrumentation 030304 developmental biology 0105 earth and related environmental sciences Fluid Flow and Transfer Processes 0303 health sciences Cadmium one-way ANOVA biology lcsh:T Process Chemistry and Technology zinc General Engineering biology.organism_classification lcsh:QC1-999 Computer Science Applications Phytoremediation lcsh:Biology (General) lcsh:QD1-999 chemistry lcsh:TA1-2040 Environmental chemistry biodegradable chelating agent Shoot lcsh:Engineering (General). Civil engineering (General) lcsh:Physics |
| Zdroj: | Applied Sciences Volume 11 Issue 4 Applied Sciences, Vol 11, Iss 1557, p 1557 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11041557 |
| Popis: | The removal of cadmium (Cd) and zinc (Zn) from soil by phytoremediation was investigated using Taraxacum officinale and Gazania. A plant environmental control system was used to cultivate the plants. The effects of different biodegradable chelating agents (i.e., EDDS, HIDS, and GLDA), relative humidity, and other competitive metals on the adsorption of Cd and Zn were also studied. In addition, the approach for metal recovery was explored by extraction of metals from plants after phytoremediation using Gazania. The concentrations of Cd and Zn were determined by inductively coupled plasma mass spectrometry (ICP-MS). In addition, one-way analysis of variance (ANOVA) tests were performed.to determine significant differences between the experimental treatments adopted in this work. Consequently, the following main conclusions were obtained: (1) In the case of Taraxacum officinale, Cd and Zn could be removed even under the presence of other heavy metals. (2) By adding a chelating agent, the amount absorbed by the shoot generally increased.(3) In the case of Gazania, the concentration of Cd was higher in root than that in shoot, whereas the concentration of Zn was higher in the shoot than that in the root.(4) Taraxacum officinale was more suitable for phytoremediation of Cd than Gazania.(5) Cd and Zn could be extracted from plants by adding a low concentration of nitric acid. (6) The one-way ANOVA tests showed no statistically significant differences among the experimental treatments. |
| Databáze: | OpenAIRE |
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