Method for repairing nuclide pollutants in seawater by using Enteromorpha green tide
A technology for pollutants and seawater, which is applied in the field of repairing nuclide pollutants, can solve the problem of no relevant reports on the removal effect of nuclide pollutants, and achieve a simple and easy repair and recovery process, strong repair ability, and high efficiency Effect
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Embodiment 1
[0025] Adsorption of nuclide cobalt in seawater by U.prolifera:
[0026] Take the living Enteromorpha green tide and put it into a 3L beaker. The fresh weight of Enteromorpha green tide in each beaker is 200g, add sand-filtered natural seawater, and place it at a temperature of 15°C and a light intensity of 100μmol photons m -2 the s -1 , light cycle 12h (L): 12h (D) in the incubator inflated to adapt to culture for 1 day. The natural seawater in the beaker was replaced by adding different concentrations of cobalt (10, 20, 50 and 100mg L -1 ) of natural seawater as the experimental group, blank natural seawater as the control group, and three parallel experiments were set up for each group of experiments. Inflate (to ensure the oxygen content of seawater) culture, change the water every day. After culturing for 1, 2, 4, and 8 days, take out an appropriate amount of samples of Enteromorpha green tide, absorb the surface moisture with absorbent paper, and dry at 60°C to const...
Embodiment 2
[0032] Water Tank Simulation Experiment of Removal of Nuclide Cobalt from Seawater by U.prolifera
[0033] Add live Enteromorpha green tide (55.6g / L) with a fresh weight of about 5.0kg in a 90L glass tank, and inflate it at room temperature (20±5°C) (to ensure the oxygen content of the seawater) for cultivation, and add chloride to the seawater in advance Cobalt, so that the initial concentration of cobalt is 102.8mg L -1 (measured value), take seawater samples respectively after cultivating 1, 2, 3, 4, 6, 8, 10, 12, 24, 30, 36, 48h, after filtering, detect the content of cobalt in seawater with ICP-OES (see figure 1 ).
[0034] Depend on figure 1 The results show that under the artificial simulation conditions, the restoration process of the seawater nuclide cobalt by the green tide is basically completed within 24 hours, and then the algae can be considered to be recycled, and fresh green tide Enteromorpha can be added again until the cobalt in the seawater is reduced to ...
Embodiment 3
[0036] Water Tank Simulation Experiment of Removal of Nucium Cesium from Seawater by U.prolifera
[0037] Add live Enteromorpha green tide (55.6g / L) with a fresh weight of about 5.0kg in a 90L glass tank, and inflate it at room temperature (20±5°C) (to ensure the oxygen content of the seawater) for cultivation, and add chloride to the seawater in advance Cesium, so that the initial concentration of cesium is 101.3mg L -1 (measured value), take seawater samples respectively after culturing for 1, 2, 3, 4, 6, 8, 10, 12, 24, 30, 36, and 48 hours, and after filtering, use ICP-OES to detect the content of cesium in seawater (see figure 2 ).
[0038] Depend on figure 2The results show that under artificial simulation conditions, the repair process of green tide to seawater nuclide cesium is also basically completed within 24 hours, and then it can be considered to recycle the algae and add fresh green tide Enteromorpha until the cesium in seawater drops to required concentrati...
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