Archive for ‘filters’

17/05/2020

Wuhan’s hospitals return to normal after last coronavirus patients return home

  • Part of Jilin city declared a “high-risk” area as further cases of Covid-19 reported in China’s northeast
  • At the height of the outbreak, 48 Wuhan hospitals had been designated as centres to treat the disease, but the last cases have now been discharged
Wuhan University’s Renmin Hospital resumed normal operations on Saturday after being designated a Covid-19 centre at the height of the outbreak. Photo: Reuters
Wuhan University’s Renmin Hospital resumed normal operations on Saturday after being designated a Covid-19 centre at the height of the outbreak. Photo: Reuters

Wuhan’s hospitals returned to normal over the weekend after the last Covid-19 patients in the city where the disease first emerged were discharged.

However, more cases of the disease continued to emerge in northeast China, with three new cases, all from community infections, and one death recorded in Jilin province on Saturday.

As a result, the Fengman district in Jilin city has been elevated to “high-risk” status, joining the nearby city of Shulan on the highest alert level.

The Jinlin government advised the general public to increase their precautions, and protect the health of themselves and their families.

Party chief removed after Chinese city hit by new coronavirus cluster

16 May 2020

“If you have a fever, cough and other acute respiratory symptoms, you should go to a local designated medical institution to get treatment immediately,” the statement said.

Shulan party chief Li Pengfei was removed from his post on Friday and the following day five more officials there and in Jilin city were also dismissed.

Meanwhile, Wuhan continued to show signs that life was returning to normal.

All hospitals in the city, the original epicentre of the coronavirus outbreak, had resumed normal service on Saturday after treating thousands of Covid-19 patients, local media reported.

Doctors at Wuhan University’s Renmin Hospital – one of the 48 hospitals designated as a Covid-19 treatment centre – treated nearly 1,000 patients on the first day of normal service resuming, the Changjiang Daily reported on Sunday.

It was the last hospital in Wuhan to resume normal operations, after more than four months battling the outbreak.

Wuhan orders fresh coronavirus tests for all residents as new cluster fans fears of second wave

15 May 2020

During that time, thousands of Wuhan residents were unable to get treatment for emergencies or chronic diseases, but the number of people who died as a result was not recorded.

Before reopening, the hospital underwent a sanitising process that took more than three days, in which all air conditioners, filters, and bedsheets were disinfected.

All patients entering the hospital were required to submit personal information, including their temperature and contact history, in a makeshift shelter set up in front of the hospital’s main entrance before being allowed in.

Source: SCMP

05/09/2019

China earmarks site to store nuclear waste deep underground

  • 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
A preliminary design for the Beishan Underground Research Laboratory. Photo: Handout
A preliminary design for the Beishan Underground Research Laboratory. Photo: Handout

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.”

China condemns US blacklisting of nuclear firms and says American companies could be hurt as a result
The Chinese authorities see nuclear power an important source of energy that will help to curb carbon emissions and pollution as well as reducing its dependence on fuel imports.

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.

China ‘actively promoting’ nuclear fuel processing plant with French Areva
Chinese officials usually stay tight-lipped about how nuclear waste is disposed of mainly because of fears that any discussion of the topic would trigger safety fears, although in recent years more efforts have been made to inform the public to win support.
Scientists say that nuclear waste can be divided into three categories depending on the level of radioactivity.
Low-level waste consists of minimally radioactive materials such as mop heads, rags, or protective clothing used in nuclear plants, while intermediate-level waste covers things such as filters and used reactor components.
High-level waste, however, is generated by the reprocessing of spent nuclear fuel and scientists generally agree that the safest way to dispose of it is to bury it deep underground in areas where the geology means it will have a minimal impact on the environment while it decays over thousands of years.
The facility will be built in a remote part of Gansu province. Photo: Handout
The facility will be built in a remote part of Gansu province. Photo: Handout

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.

Washington blacklists Chinese nuclear firms for ‘helping military acquire US technology’

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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