With the goal of emission peak and carbon neutrality, the green and low-carbon transformation of the cement manufacturing industry has become a major trend in the development of the industry, and the R&D deployment and application of related energy-saving and carbon-reducing key technologies are increasingly urgent. This paper systematically compares the green low-carbon technologies that have been commercially applied in the cement industry and those that are in the R&D stage from four aspects: raw material substitution, fuel substitution, energy saving and efficiency improvement, and carbon capture and utilization, reviews the carbon reduction potential of various technologies, and analyzes and discusses the synergistic environmental benefits, promotion constraints and other factors of various technologies to provide suggestions and support for the selection of technologies in the process of low-carbon green transformation in the cement industry.

With many unique physical and chemical properties, ionic liquids are regarded as excellent substitutes of traditional solvents for adsorption and separation of gases. The predictive molecular thermodynamic model COSMO-RS(Conductor-like screening model for real solvents)can be used for modeling of the system(gas + ILs) and prediction of the gas solubility and selectivity in ILs. The review introduces the key parameters of the COSMO-RS model. The pseudo ternary system for the properties calculation of ILs used by COSMO-RS was illustrated. The research progresses for the modeling of adsorption and separation of CO₂, SO₂, aromatic volatile organic compounds, aliphatic volatile organic compounds, and H₂O used by ILs were summarized. The correction and optimization of COSMO-RS model for ILs was discussed. Finally, the research direction of COSMO-RS model of ILs screening used for gases capture and separation is prospected.

In recent years, anaerobic ammonia oxidation(Anammox), as an economical and eco-friendly nitrogen removal technology for wastewater, has been widely concerned. However, the application of this technology in existing wastewater treatment still faces difficulties, primarily due to the sensitivity of Anammox bacteria(AnAOB)to environmental factors and the insufficient nitrite supply in the reaction system. This article delves into the operating conditions, treatment performance, and stability of Anammox process from both macro(laboratory research, engineering applications, etc.) and micro(AnAOB community characteristics, AnAOB quorum sensing, etc.) perspectives. The analysis focuses on the features, influencing factors, coupling processes, and application of Anammox technology based on domestic and foreign research. Additionally, the article identifies the progress and obstacles of Anammox technology in practical applications. Finally, the article summarizes and proposes research directions and regulation strategies that merit further study to improve and create new coupling processes of Anammox technology for wastewater treatment.

The technological progress of the electronic and electrical industry has led to an annual scrap rate of 3%~5%, and the proposal of the national dual carbon goal has brought new opportunities and challenges to the green disposal of waste. The study conducts a literature review of environmental load research in the field of recovery and recycling of life cycle evaluation of electrical and electronic products, and systematically sorts out the current research progress of end-of-life treatment methods for major electronic product wastes based on the perspective of the whole life cycle. The recycling method system of waste electronic and electrical appliances was sorted out. The various recycling methods of environmental load distribution were compared. The advantages and disadvantages and scope of application of recycling and circulation were analyzed and discussed. This study looked forward to the future direction of the development of the green and low-carbon technology of electronic and electrical products, so as to provide suggestions and support for the green and low-carbon transformation of the electronic and electrical industry.

Waste denitration catalyst is a typical refractory muti-metal hazardous waste from the energy industry, and its annual emission reaches 500,000 m³ in China. Therefore, the efficient disposal of waste SCR denitrification catalysts and the recycling of valuable elements in waste SCR denitrification catalysts have become the focus of current research. In this review, we introduced the properties of waste SCR denitrification catalysts, summarized the research progress of disposal methods and resource recovery of waste SCR denitrification catalysts in recent years, and compared the advantages and disadvantages of each method. Finally, the efficient recovery and utilization of waste SCR denitrification catalysts were prospected.