An ultra-low pressure reverse osmosis system and its method for treating iodide ions in radioactively polluted water
An iodide ion, ultra-low pressure technology, applied in the field of water treatment, can solve problems such as unfavorable sudden emergencies, and achieve the effect of good iodine removal effect, broad application prospect and low energy consumption
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Embodiment 1
[0036] The raw water containing 15.2mg / L iodine is hydraulically injected into the above-mentioned membrane module, the operating temperature is 20.0°C, the pH value is 7.78, the pressure across the membrane is 0.30MPa, the radioactivity decontamination factor of iodine in the product water is 780, and the system recovery rate is 16.3% .
Embodiment 2
[0038] The raw water containing 15.2mg / L iodine is hydraulically injected into the above-mentioned membrane module, the operating temperature is 22.4°C, the pH value is 7.81, the pressure across the membrane is 0.50MPa, the radioactivity decontamination factor of iodine in the product water is 831, and the system recovery rate is 16.7% .
Embodiment 3
[0040] The raw water containing 15.2mg / L iodine is hydraulically injected into the above membrane module, the operating temperature is 22.1°C, the pH value is 7.92, the pressure across the membrane is 0.70MPa, the radioactivity decontamination factor of iodine in the product water is 916, and the system recovery rate is 16.7% .
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