A method of using woody plants to remediate uranium-contaminated soil
A technology for woody plants and uranium pollution, which is applied in the field of remediation of uranium-contaminated soil by using woody plants - American Bamboo Willow No. 3, can solve the problems of low planting survival rate, poor environmental adaptability, slow growth rate, etc., and achieves strong resistance , strong adaptability, strong germination effect
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[0036] A method for remediating uranium-contaminated soil by utilizing woody plants. The cuttings of the No. 3 U.S. bamboo and willow branches are inserted into the uranium-contaminated soil, and the steps of making them survive, grow to the above-ground parts for harvesting and carry out centralized treatment are as follows:
[0037] (1) Cut the branches: in February every year, cut a section of the No. 3 branch of American Bamboo Willow with 6 leaves, about 15cm long, the upper 3 leaves each retain two leaves, and the lower 3 leaves are removed from the petiole. cut off
[0038](2) The cutting branches are inserted into the uranium-contaminated soil: the pruned No. 3 branches of American Bamboo Willow are inserted into the uranium-contaminated soil by about 7cm, and the branches with leaves of 8cm are kept outside;
[0039] (3) After rooting and surviving, it will grow for a certain period of time: After cutting the branches of American Bamboo Willow No. 3 into the uranium-c...
Embodiment 1
[0042] Example 1, in February every year, cut a section of the No. 3 branch of American Bamboo Willow with 6 leaves, about 15cm in length, the upper 3 leaves each retain two leaves, and the lower 3 leaves are cut from the petiole. Then, the cut branches of American Bamboo Willow No. 3 were inserted into the uranium-contaminated soil with a soluble uranium content of 2 mg / kg for about 7 cm, leaving 8 cm of branches with leaves outside. After the branches of American Bamboo Willow No. 3 were cut into the uranium-contaminated soil, they were watered on time every day, and they began to take root after 3 days, and began to grow new leaves after 14 days. After careful management, rational fertilization. After 100 days of growth, American Bamboo Willow No. 3 grew into a small tree about 1.6m high. Then, the above-ground parts are harvested by manual harvesting, and moved to a safe place for centralized drying, crushing, incineration, and finally landfilling. After analysis, the ur...
Embodiment 2
[0043] Example 2, in February every year, cut a section of the No. 3 branch of American Bamboo Willow with 6 leaves, about 15cm in length, the upper 3 leaves each retain two leaves, and the lower 3 leaves are cut from the petiole. Then, the cut branches of American Bamboo Willow No. 3 were inserted into the uranium-contaminated soil with a soluble uranium content of 4 mg / kg for about 7 cm, leaving 8 cm of branches with leaves outside. After the branches of American Bamboo Willow No. 3 were cut into the uranium-contaminated soil, they were watered on time every day, and they began to take root after 3 days, and began to grow new leaves after 14 days. After careful management and reasonable fertilization, after 120 days of growth, American Bamboo Willow No. 3 has grown into a small tree with a height of about 1.8m. Then, the above-ground parts are harvested by manual harvesting, and moved to a safe place for centralized drying, crushing, incineration, and finally landfilling. A...
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