日本核冷卻廢水執(zhí)意排放引廣泛擔(dān)憂，中國(guó)研制吸附固化蒸發(fā)濃縮法或解燃眉之急
Source: Yongkang Zhongyi Manufacture & Trade Co., Ltd.Publication time：2022-09-05
Recently, the news that 1.37 million tons of nuclear waste water in Japan will be discharged into the sea stirred the hearts of peace loving people in the world.
The reporter learned that Jin Zhimin, a professor of Zhejiang University of technology, and Yongkang Zhongyi industry and Trade Co., Ltd. jointly developed an inert polymer adsorbent. After two consecutive years of simulation tests, the results show that the nuclear Cooling Wastewater with huge reserves that can not be stored in liquid state can be solidified and stored by pure physical adsorption; On this basis, the simple evaporation and concentration process is further adopted to achieve the goals of safe disposal of nuclear wastewater such as solid storage and reduced storage. Huang Jianshe, head of the research group, told reporters that this kind of adsorption material has low cost, can be recycled, low cost and simple operation method. If this technical scheme is promoted, it is expected to solve the problem that Japan's nuclear waste water does not need to be discharged into the sea.
Jin Zhimin, Professor of Zhejiang University of technology, told reporters that the effect of the new material on the solid-state reduction storage of liquid nuclear waste water is certain. However, limited to the scientific research conditions of Zhejiang University of technology, the specific data of tritium, cesium 134, cesium 137, carbon-14, cobalt-60, strontium-90, ruthenium-106, iodine-129 and other radioactive substances in concentrated nuclear wastewater still need to be tested and demonstrated by laboratories and experts with nuclear radiation monitoring conditions.
The reporter learned that Japan's Atomic Energy Regulatory Commission held a meeting on July 22 to formally approve the plan of discharging nuclear contaminated water from the Fukushima No. 1 nuclear power plant into the sea formulated by Tokyo Electric Power Company (TEPCO). TEPCO will then start the project of discharging nuclear contaminated water into the sea. World public opinion holds that Japan's discharge of 1.37 million tons of nuclear contaminated water into the sea is like launching a nuclear war, and the people around it will suffer "twice" from nuclear radiation and suffer "the second crime".
According to the report of the global times on the 23rd, marine affairs experts said in an interview with reporters that Japan, as a "big fishing country" and a "big fish eating country", will bear the brunt, and will be affected by the discharge of nuclear contaminated water into the sea, and the export of marine products will also be blocked. People in coastal areas such as Japan, South Korea and China are at increased risk.
According to the interview by the global times, Yu Zhirong, a distinguished researcher at Ningbo University, believes that Japanese citizens and academics with conscience should fight against the Japanese government and strongly demand that Kishida government attach great importance to the issue of nuclear contaminated water discharge from the Fukushima nuclear power plant and resolutely reverse the discharge decision. The international community should also prevent Japan from discharging nuclear contaminated water, harming the regional and even global marine environment and harming people's health.
As we all know, in the "3 · 11" accident in Japan in 2011, the tsunami caused a large amount of seawater to flow into the Fukushima nuclear power plant. In response to the accident, TEPCO built 1044 sewage storage tanks in the plant area (by the end of 2022), with a storage capacity of 2 million cubic meters of sewage. However, the construction of sewage storage tanks was completed at the end of 2020, with a total water storage capacity of only 1.37 million cubic meters. Obviously, the remaining storage tank space is not much. If it is not treated and discharged in time, the sewage will be full by 2022, which is very harmful to the environment. From this perspective, Japan's decision to discharge 1.37 million tons of nuclear waste water into the sea in order to solve the problem of nuclear liquid waste water storage is extremely irresponsible. A spokesman for China's foreign ministry said on the 22nd that Japan's attempt to create established facts in disregard of the concerns of all parties is extremely irresponsible.
The assessment report of the expert group of the International Atomic Energy Agency clearly points out that if the tritiated wastewater from the Fukushima nuclear power plant is discharged into the sea, it will affect the marine environment and public health of surrounding countries. Meanwhile, the existing treated wastewater still contains other radionuclides. Once the radioactive substances in the nuclear waste water are discharged into the sea, it will endanger the living environment of marine animals and aquatic plants and lead to the mutation and death of species. The radioactive substances will enter the food chain and gradually accumulate in the food chain, which will eventually threaten human health.
Huang Jianshe told reporters that the solid-state adsorption evaporation concentration method will fill the gap in the field of emergency disposal of nuclear cooling water leakage in China. At present, the new technology has been listed in the emergency equipment technology catalogue of the Ministry of emergency response of China. During the preparation and escort of the "G20" Hangzhou summit, this technology occurred in the major oil spill emergency rescue of Yongkang section of Changshen Shenzhen Expressway on July 15, 2016. Under the dangerous situation of not cutting off the water flow, it can quickly intercept and adsorb the oil spilled on the water and remove it in a safe and environmentally friendly physical adsorption mode. It escorted the G20 Hangzhou summit and made immortal contributions to the environmental security of the water system along the Qiantang River.