How harmful is nuclear waste water?

The hazards of nuclear waste water include: pollution of global waters, irreversible damage to genes, pollution of food chain transmission, etc.

1, global water pollution

After the nuclear waste water is discharged, Japan's Pacific coastal waters bear the brunt, especially the local waters around Fukushima Prefecture, and then the sewage will pollute the East China Sea. Some Japanese scholars have pointed out that discharging nuclear sewage into the ocean will affect global fish migration, offshore fishing and ecological security.

2. Irreversible damage to genes.

Nuclear experts in Greenpeace pointed out that the carbon 14 contained in Japanese nuclear waste water is dangerous for thousands of years, which may cause genetic damage. The American magazine Science has previously written that in addition to tritium, nuclear sewage also contains a variety of radioactive substances, so it is necessary to pay close attention to the potential dangers that may be brought by releasing sewage into the ocean.

3. Pollution spread by food chain

Experiments have proved that long-term consumption of a large number of radioactive contaminated seafood may lead to the accumulation of radioactive substances in the body exceeding the allowable amount.

The difference between nuclear waste water and nuclear sewage;

1, different sources

Nuclear sewage refers to waste water containing radioactive substances discharged from nuclear reactors or nuclear reactors, mainly including cooling water, coolant, salts in coolant and other wastes. Nuclear waste water refers to unpolluted cooling water in nuclear energy facilities, that is, water that has not been exposed to radioactive substances during cooling.

2, the composition is different

Nuclear sewage contains radioactive substances, such as iodine-13 1, cesium-137, strontium -90, etc. These substances are highly radioactive and potentially harmful to the environment and human health. The composition of nuclear waste water is relatively simple, mainly water and some salts.

3. Different treatment methods

The treatment of nuclear sewage requires special technologies and equipment, such as ion exchange, reverse osmosis and evaporation. , to remove the radioactive material. Nuclear wastewater can be purified by conventional water treatment methods, such as filtration, precipitation and disinfection.