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    Prospect of resource recycling technology frontier of metallurgical industry with carbon peaking and carbon neutrality strategy
    Huiquan LI Yufeng WU Yunfa CHEN
    The Chinese Journal of Process Engineering    2022, 22 (10): 1414-1417.   DOI: 10.12034/j.issn.1009-606X.222360
    Abstract （456）   HTML （12）    PDF （503KB）（156）       Save
    Resource recycling is an important way for the metallurgical industry to ensure the safe supply of key metal resources and achieve carbon peak and carbon neutrality. From the perspective of carbon peaking and carbon neutrality strategy, this work outlines the overall status and the development trend of green low-carbon transformation in the resource recycling of metallurgical industry, prospects the development frontier of resource recycling technology in the metallurgical industry from multiple perspectives such as the scientific basis of material recycling, the revolutionary technology of "waste free metallurgy", the coupling of resource recycling and carbon cycle, the high-quality recycle of secondary metal resources, and the reconstruction of intellectual property rights based on digital technology. A series of view points is proposed to be useful reference for the green and low-carbon transformation and development of metallurgical industry.
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    Secondary resources utilization, problems and countermeasures of the domestic and oversea steel industry
    Daqiang CANG Lingling ZHANG Yang LIU Zhaohou CHEN Bingyang HE
    The Chinese Journal of Process Engineering    2022, 22 (10): 1418-1424.   DOI: 10.12034/j.issn.1009-606X.222345
    Abstract （380）   HTML （8）    PDF （1055KB）（122）       Save
    In order to improve the steel industrial secondary resources utilization level (steel slag as an example), the different gas, liquid, and solid phase secondary resources (wastes) from the steel industry are introduced first, and then the recent situation of the solid phase secondary resources is introduced. The problems and the relevant countermeasures are put forward for steel slag future utilization. So far steel slag is one of the most difficult proposals and utilization of solid secondary resources, and has become a hot topic in the world steel industry. So new steel slag technologies and product development are urgently needed for high efficiency, cleaner, and high value-added utilization for steel slag utilization.So new steel slag technologies and product development are urgently needed for high efficiency, cleaner, and high value-added utilization for steel slag.
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    The technical development for water saving and pollution control in iron and steel industry under carbon peaking and carbon neutrality background
    Yongbing XIE Di ZHANG He ZHAO Yuehong ZHAO Fengqiang LIU Hongbin CAO
    The Chinese Journal of Process Engineering    2022, 22 (10): 1425-1428.   DOI: 10.12034/j.issn.1009-606X.222357
    Abstract （303）   HTML （11）    PDF （546KB）（85）       Save
    The iron and steel industry plays an important role in Chinese economic development. It is a pillar industry of our country, but also an industry with high energy and water consumption, high pollution, and high carbon emissions. Under the new situation that China has formulated the carbon peaking and carbon neutrality goal, the end treatment of wastewater pollution in the iron and steel industry is still disconnected from the production process, and the efficiency of water and energy usage still needs to be improved. It is difficult to meet the control needs of low-carbon development of the industry, so it is urgent to promote the overall planning of pollution control and carbon emission reduction. This work puts forward the research ideas for the development of water-saving and pollution-reduction technology in the iron and steel industry under this background, which concludes the comprehensive planning of water supply, water use, wastewater treatment, and water recycling, low-carbon collaborative control of water pollution across different mediums, the whole process control and intelligent optimization of wastewater pollution, the common prosperity and collaborative development of steel enterprises and local cities. It is expected to further enhance the scientific and technological support for water conservation and pollution reduction in the iron and steel industry in the future, and help the green and low-carbon development of the industry.
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