Core Viewpoint - The successful establishment of the "Technical Specification for the Use of Sludge as Auxiliary Solid Fuel" by China in the International Organization for Standardization (ISO) will support global green development efforts [1] Group 1: Industry Context - The annual global production of urban sludge has exceeded 150 million tons due to industrialization and urbanization [1] - Traditional methods of landfill or land use are becoming inadequate due to the increasing complexity of chemical pollutants in sludge [1] Group 2: Standard Development - The new standard will provide a global technical solution for the use of sludge as auxiliary solid fuel by regulating sludge quality, trace element limits, pretreatment, co-firing ranges, pollutant control, and sampling and monitoring methods [1] - Experts from countries including China, Canada, France, Italy, India, Ghana, and Nigeria will collaborate to develop this international standard [1] Group 3: Environmental Impact - The implementation of this standard is expected to enhance the technological level of sludge resource utilization and improve urban environmental conditions [1]

Core Viewpoint - The establishment of the "Technical Specification for the Use of Sludge as Auxiliary Solid Fuel" led by China has been successfully initiated within the International Organization for Standardization, aiming to support global green development [1] Group 1: Global Context - The annual global production of urban sludge has exceeded 150 million tons due to industrialization and urbanization [1] - Traditional methods of landfill or land use are becoming inadequate to address the increasingly complex chemical pollutants in sludge, making safe disposal and resource utilization a common challenge for countries [1] Group 2: Standard Specification - The new standard will regulate sludge quality, trace element limits, pretreatment, co-firing scope, pollutant control, and sampling and monitoring methods, providing a global technical solution for using sludge as auxiliary solid fuel [1] - This initiative is expected to enhance the technological level of sludge resource utilization and improve urban environmental conditions [1] Group 3: International Collaboration - Experts from China, Canada, France, Italy, India, Ghana, and Nigeria will collaboratively develop this international standard, contributing knowledge for global sustainable development [1]