Estimation of Copper and Cadmium Bioavailability in Contaminated Soil Remediated by Different Plants and Micron Hydroxyapatite
A three-year in situ remediation experiment was carried out to understand the effect of combined phytoremediation with chemical materials on the bioavailability of heavy metals in soil. Indigenous weed (Setaria pumila), energy plant (Pennisetum sp.), cadmium (Cd)-hyperaccumulator (Sedum plumbizincic...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
|
| Series: | Bioinorganic Chemistry and Applications |
| Online Access: | http://dx.doi.org/10.1155/2022/3565550 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832562027088838656 |
|---|---|
| author | Lei Xu Xiangyu Xing Jianbiao Peng Mingfei Ji |
| author_facet | Lei Xu Xiangyu Xing Jianbiao Peng Mingfei Ji |
| author_sort | Lei Xu |
| collection | DOAJ |
| description | A three-year in situ remediation experiment was carried out to understand the effect of combined phytoremediation with chemical materials on the bioavailability of heavy metals in soil. Indigenous weed (Setaria pumila), energy plant (Pennisetum sp.), cadmium (Cd)-hyperaccumulator (Sedum plumbizincicola), and copper (Cu)-tolerant plant (Elsholtzia splendens) were used as the phytoremediation plants aided by micron hydroxyapatite (1% wt). The bioavailability of Cu and Cd in soil was evaluated during the three years. The results showed that the four plants combined with micron hydroxyapatite significantly increased soil pH and soil organic carbon (SOC), and decreased Cu and Cd fractions extracted by CaCl2 and diffusive gradients in thin films (DGT) than the untreated soils, respectively. Because of the large biomass, the accumulation of Cu and Cd is the largest in Pennisetum sp. followed by Elsholtzia splendens, Sedum plumbizincicola, and Setaria pumila. The bioavailability of Cu and Cd is significantly negatively correlated with pH, soil organic carbon, available phosphorus, and available potassium. Moreover, the correlation is mainly related to the addition of micron hydroxyapatite. The accumulation of Cu and Cd is the combined action of the soil bioavailability of Cu, Cd, and biomass. Our results suggest that Pennisetum sp. can act as an appropriate remediation plant for phytoremediation aided by amendments. |
| format | Article |
| id | doaj-art-0943cf39b12e440a94789282574ea1ff |
| institution | Kabale University |
| issn | 1687-479X |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Bioinorganic Chemistry and Applications |
| spelling | doaj-art-0943cf39b12e440a94789282574ea1ff2025-02-03T01:23:35ZengWileyBioinorganic Chemistry and Applications1687-479X2022-01-01202210.1155/2022/3565550Estimation of Copper and Cadmium Bioavailability in Contaminated Soil Remediated by Different Plants and Micron HydroxyapatiteLei Xu0Xiangyu Xing1Jianbiao Peng2Mingfei Ji3Key Laboratory of Natural Disaster and Remote Sensing of Henan ProvinceCollege of Non-Major Foreign Language TeachingSchool of EnvironmentHenan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion ProjectA three-year in situ remediation experiment was carried out to understand the effect of combined phytoremediation with chemical materials on the bioavailability of heavy metals in soil. Indigenous weed (Setaria pumila), energy plant (Pennisetum sp.), cadmium (Cd)-hyperaccumulator (Sedum plumbizincicola), and copper (Cu)-tolerant plant (Elsholtzia splendens) were used as the phytoremediation plants aided by micron hydroxyapatite (1% wt). The bioavailability of Cu and Cd in soil was evaluated during the three years. The results showed that the four plants combined with micron hydroxyapatite significantly increased soil pH and soil organic carbon (SOC), and decreased Cu and Cd fractions extracted by CaCl2 and diffusive gradients in thin films (DGT) than the untreated soils, respectively. Because of the large biomass, the accumulation of Cu and Cd is the largest in Pennisetum sp. followed by Elsholtzia splendens, Sedum plumbizincicola, and Setaria pumila. The bioavailability of Cu and Cd is significantly negatively correlated with pH, soil organic carbon, available phosphorus, and available potassium. Moreover, the correlation is mainly related to the addition of micron hydroxyapatite. The accumulation of Cu and Cd is the combined action of the soil bioavailability of Cu, Cd, and biomass. Our results suggest that Pennisetum sp. can act as an appropriate remediation plant for phytoremediation aided by amendments.http://dx.doi.org/10.1155/2022/3565550 |
| spellingShingle | Lei Xu Xiangyu Xing Jianbiao Peng Mingfei Ji Estimation of Copper and Cadmium Bioavailability in Contaminated Soil Remediated by Different Plants and Micron Hydroxyapatite Bioinorganic Chemistry and Applications |
| title | Estimation of Copper and Cadmium Bioavailability in Contaminated Soil Remediated by Different Plants and Micron Hydroxyapatite |
| title_full | Estimation of Copper and Cadmium Bioavailability in Contaminated Soil Remediated by Different Plants and Micron Hydroxyapatite |
| title_fullStr | Estimation of Copper and Cadmium Bioavailability in Contaminated Soil Remediated by Different Plants and Micron Hydroxyapatite |
| title_full_unstemmed | Estimation of Copper and Cadmium Bioavailability in Contaminated Soil Remediated by Different Plants and Micron Hydroxyapatite |
| title_short | Estimation of Copper and Cadmium Bioavailability in Contaminated Soil Remediated by Different Plants and Micron Hydroxyapatite |
| title_sort | estimation of copper and cadmium bioavailability in contaminated soil remediated by different plants and micron hydroxyapatite |
| url | http://dx.doi.org/10.1155/2022/3565550 |
| work_keys_str_mv | AT leixu estimationofcopperandcadmiumbioavailabilityincontaminatedsoilremediatedbydifferentplantsandmicronhydroxyapatite AT xiangyuxing estimationofcopperandcadmiumbioavailabilityincontaminatedsoilremediatedbydifferentplantsandmicronhydroxyapatite AT jianbiaopeng estimationofcopperandcadmiumbioavailabilityincontaminatedsoilremediatedbydifferentplantsandmicronhydroxyapatite AT mingfeiji estimationofcopperandcadmiumbioavailabilityincontaminatedsoilremediatedbydifferentplantsandmicronhydroxyapatite |