- Researchers will conduct tests at site in Gansu to see whether it will make a viable facility to store highly radioactive waste safely
- Scientists say China has the chance to become a world leader in this field but has to find a way to ensure it does not leak
China has chosen a site for an underground laboratory to research the disposal of highly radioactive waste, the country’s nuclear safety watchdog said on Wednesday.
Officials said work will soon begin on building the Beishan Underground Research Laboratory 400 metres underground in the northwestern province of Gansu.
Liu Hua, the head of the Chinese National Nuclear Safety Administration, said work would be carried out to determine whether it would be possible to build a repository for high-level nuclear waste deep underground.
“China sees radioactive waste disposal as a very important part [of the development nuclear energy],” said Liu. “To develop nuclear energy, we must have safe storage and disposal of nuclear waste.”
But while the country has made great strides in the development of nuclear power, it needs to find a safe and reliable way of dealing with its growing stockpiles of nuclear waste.
Liu said the Gansu site had been identified as a possible location for a deep nuclear waste store after years of searching.
Once the laboratory is built, scientists and engineers will start experiments to confirm whether it will make a viable underground storage facility.
“Based on the data of the experiments, we can then decide if we are going to pick this as the final site,” he added.
Some Chinese scientists said the country had the chance to lead the world in this area of research but others have expressed concerns about safety.
Jiang Kejun, a senior researcher at the Energy Research Institute of China’s National Development and Reform Commission, said that very few countries in the world are studying this form of nuclear waste disposal.
“It gives China an opportunity to be a leader in research in this area, plus China has the technology and financial means,” he said.
About a dozen countries including France, Switzerland, Japan, and the United States have carried out research in this area, but in recent years most have abandoned or scaled back their programmes.
At present there are storage sites operating in Finland and the US, but other countries such as Germany have abandoned plans to build similar facilities.
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But despite broad scientific support for underground disposal, some analysts and many members of the public remain sceptical about whether it is really safe.
Lei Yian, an associate professor at the School of Physics at Peking University, said there was no absolute guarantee that the repositories would be safe when they are come into operation.
“Leakage has happened in [repositories] in the US and the former Soviet Union … it’s a difficult problem worldwide,” he said. “If China can solve it, then it will have solved a global problem.”
China is also building more facilities to dispose of low and intermediate level waste. Officials said new plants were being built in Zhenjiang, Fujian and Shandong, three coastal provinces that currently lack disposal facilities.
At present, two disposal sites for low and intermediate-level waste are in operation in Gansu and Guangdong provinces.
Source: SCMP
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