Method for restoring and treating caesium and/or strontium polluted soil by using red spinach
A technology for polluted soil and red amaranth, which is applied in the restoration of polluted soil and other directions, can solve the problems of inability to fundamentally solve the problem of nuclide removal, secondary cross-contamination of the environment, and the concentration of nuclide cannot be too high, and achieves a good treatment effect. , beautify the environment, the effect of strong environmental adaptability
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Embodiment 1
[0022] Embodiment 1: Red amaranth cesium strontium hydroponic screening test
[0023] This experiment was carried out in Block 7E, East Laboratory Building, School of Life Science and Engineering, Southwest University of Science and Technology. The seeds of participating in the test red amaranth were purchased from Yunchuan Seed Company, Mianyang, Sichuan Province; in the middle of March, the red amaranth seeds were soaked in 0.5% NaClO (that is, the NaClO aqueous solution with a mass percentage concentration of 0.5%, the same as the following) for 20 minutes, and then sowed in in soil loaded with perlite. When the seedling grows to 5-6 leaves, transplant it into a plastic bucket equipped with 1000mL Hoagland nutrient solution (that is, Hoagland's nutrient solution, used as a compound fertilizer, which is the prior art, the same below). There is a foam board with holes, 1 plant per hole, 10 plants per bucket, the nutrient solution is changed every three days, and the cultivat...
Embodiment 2
[0025] Embodiment 2: further screening test of red amaranth cesium strontium hydroponics:
[0026] The participating plant in this experiment was red amaranth, and its seeds were purchased from Yunchuan Seed Company in Mianyang, Sichuan Province. In mid-March, after sterilizing the red amaranth seeds with 0.5% NaClO for 20 minutes, they were sown in the soil filled with perlite. When the seedlings grow to 5-6 leaves, transplant them into plastic buckets filled with 1000mL Hoagland nutrient solution. The surface of the bucket is covered with a foam board with holes. There is 1 plant per hole, 10 plants per bucket, and the nutrient solution is replaced every three days. Cultivate for 1 month. After 1 month, the nutrient solution was replaced with 133 Cs and 88 The Sr treatment solution was subjected to the absorption test. 133 Cs and 88The Sr treatment solution is based on the Hoagland nutrient solution, adding 0.1mmol / L, 0.5mmol / L, 1mmol / L, 5mmol / L 133 Cs and 88 Sr, test...
Embodiment 3
[0030] Embodiment 3: red amaranth cesium strontium soil screening test
[0031] filtered out 133 Cs, 88 Red amaranth, a plant with relatively strong Sr enrichment ability, was used as the experimental material, and the seeds of red amaranth were purchased from Yunchuan Seed Company in Mianyang, Sichuan Province. The test adopts potted plants, and the test site is outside the balcony of the teaching building of Dongqi Building, Southwest University of Science and Technology, Mianyang City, Sichuan Province (E=104°42'N=31°32', altitude: 462m). The soil used in the test was taken from the nursery test base of Southwest University of Science and Technology, and the soil type was yellow loam. Put the soil in a dark and ventilated place to dry naturally, remove the sundries, mash and sieve. The water-soluble and salt-soluble pH values of the soil were measured with a pH meter; the soil organic matter was determined according to Tyurin's method; each gram of ground and sieved so...
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