How should we respond to the discharge of nuclear contaminated water into sea?

At around 1:00 pm local time on August 24, 2023, a large amount of nuclear contaminated water was discharged into the ocean. H nuclear wastewater contains a large amount of high concentration radioactive nuclides such as tritium, carbon-14, cobalt-60, and strontium-90 that are difficult to remove. Among them, there are some radioactive nuclides with extremely long half-lives, and nuclear radiation poses great harm to the human body. It can not only cause cancer, but also affect our next generation, with a long-term half-life and serious harm to human health and the ecological environment. After the discharge of nuclear sewage, it can reach North America across the Pacific within 57 days, and it will spread to major oceans around the world in ten years. Some people just say 'seafood cannot be eaten', but in fact, the harm of nuclear sewage is far from that simple. Those who have studied geography should know about ocean currents and monsoons. If the ocean is polluted by nuclear sewage, the summer monsoon originating from the ocean will blow radioactive water vapor onto the mainland, causing "radiation rain" in these areas. Residents living in these areas will be affected by nuclear radiation, with coastal provinces being the most severely affected.

At present, we have two methods to deal with nuclear wastewater: industrial evaporation concentration and membrane separation technology.

Evaporative concentration is a method of using an evaporator to evaporate the water in wastewater, thereby concentrating radioactive nuclides in the residue. This method has a high concentration factor and purification coefficient, and is often used to treat medium to high level radioactive wastewater. This requires a large amount of energy consumption and generates a large amount of concentrate. A practical case is Tianjin University of Nuclear Technology in China, which uses the evaporation concentration method to treat low-level radioactive waste liquid generated in the laboratory. By using vacuum evaporator and spray dryer, the radionuclides in the waste liquid can be concentrated in the solid residue and solidified for safe disposal.The Moreshine rotary evaporator combines rotary evaporation and advanced intelligent control technology, providing a more convenient, efficient, and precise operating experience for your laboratory and factory. It can accurately control and adjust parameters such as temperature, speed, and vacuum degree to meet different sample and experimental requirements; It is widely used in laboratory fields such as chemical synthesis, environmental analysis, food safety, etc., and is particularly suitable for solvent removal, concentration, and extraction operations.

Membrane separation technology is a method of using membrane materials to filter or reverse osmosis wastewater. This method can remove suspended solids, colloids, and dissolved substances, including radioactive nuclides, from wastewater. However, it is necessary to choose appropriate membrane materials and prevent membrane fouling and aging. A practical case is the Qinshan Nuclear Power Plant, which uses membrane separation technology to treat reactor primary coolant. By using ultrafiltration and reverse osmosis membranes, tritium and other radioactive nuclides can be effectively removed from wastewater. Using advanced reverse osmosis technology and innovative formula fillers, the Moreshine ultra pure water machine and reverse osmosis RO pure water integrated machine provide an overall solution for laboratory water use. This series of water machines prepare 18.2 M Ω · cm ultrapure water and RO pure water, with ultrapure water quality meeting or exceeding the laboratory water standards and test methods (GB6682-2008), as well as the first level water quality standards of ASTM, CLSI, and ISO3696. The system design is compact and easy to operate.

Last but not least, the key to reducing the risk of nuclear pollution is for us humans to choose safe food and drinking water. Choose reliable food suppliers and brands, and try to choose locally produced food to ensure it meets safety standards. For drinking water, choose a reliable water source that has undergone water quality testing, or consider using filtration devices and boiling water for treatment. Moreshine hydrogen absorber and hydrogen rich water dispenser have the function of RO filter filtration, and hydrogen rich water dispensers are still very important for healthy drinking water in families!

Moreshine deeply understands the pain points of users in different water usage scenarios, and can provide users with more efficient and practical water purification and filtration equipment based on the current environmental needs and scenarios, meeting the real application needs of home scenarios, laboratories, and factories!