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Effects of Sodium Phytate on the Phytotoxicity and Arsenic (V) Absorption Performances of Water Hyacinth Grown in the Synthetic Wastewater as Acid Mine Drainage from Gold Mining |
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| รหัสดีโอไอ | |
| Creator | 1. Wannipa Guayjarernpanishk 2. Pantawat Sampanpanish |
| Title | Effects of Sodium Phytate on the Phytotoxicity and Arsenic (V) Absorption Performances of Water Hyacinth Grown in the Synthetic Wastewater as Acid Mine Drainage from Gold Mining |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2566 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 16 |
| Journal No. | 1 |
| Page no. | 87-98 |
| Keyword | Arsenic, Copper, Sodium phytate, Water hyacinth, Acid mine drainage |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1715 |
| Abstract | In this study, the effects of sodium phytate on the phytotoxicity and heavy metal absorptionperformances of water hyacinth grown in acidic synthetic wastewater from gold miningwere studied in four experiments. The studies included the following: the experiment onphytotoxicity. Treatment 1) by varied sodium phytate (1, 5, 10, and 15 mg/L); 2) by variedpH 4 - 6 in the experiment of synthetic wastewater containing 0.25 mg/L of Arsenic(V) and1 mg/L of copper without sodium phytate; 3) the experiment with arsenic, copper, varied pH4 - 6, and sodium phytate: copper at the mole ratio of 1:3 and 4) the experiment similarly astreatment 3 but the mole ratio was increased to1:6. Samples were collected at 7, 15, 22, and 30days. Arsenic and copper accumulations were analyzed in the plant's roots and shoots (stemand leaves). The results found that the addition of sodium phytate showed low phytotoxicitiesin the water hyacinths, except for a concentration of 10 15 mg/L at 30 days, where the plantshad significantly reduced chlorophyll contents. The experiments with both sodium phytateratios at all pH values showed that the relative growth rates (RGRs) were better than those forthe experiment without sodium phytate. Moreover, the addition of sodium phytate affected theabsorption and accumulation of arsenic and copper in the water hyacinths. The water hyacinthroots had the highest ability to absorb and accumulate arsenic in the experiments with pH 4 at22 days of the experiment, with values of 600.12 ? 120.47 mg/kg. The shoot had the highestability to absorb and accumulate arsenic in the experiments with pH 4 and sodium phytate atthe ratio of 1: 6 mol at 30 days of the experiment, with values of 23.03 ? 3.98 mg/kg. The rootand shoot of water hyacinths had the highest ability to absorb and accumulate copper in theexperiments with pH 6 at 7 days of the experiment, with the values of 12,038.61 ? 994.67 mg/kgand 172.70 ? 62.15 mg/kg, respectively. Therefore, this study concluded that water hyacinthhas a high ability to increase their arsenic and copper uptake and accumulation when sodiumphytate is added, which affects the non-phytotoxicity of water hyacinths. |
