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Modified activated carbon leads deep treatment, and "super activated carbon" is recognized by the state
Release time:
2026-02-05
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Abstract
At the forefront of technological research and development, the modification of activated carbon is continuously pushing the boundaries of its performance, providing innovative solutions to complex environmental issues.
Targeted adsorption technology tackles industrial wastewater challenges: The project "Zero-Emission Concentrated Brine Non-Evaporative Crystallization Based on Modified Activated Carbon Targeted Nitrogen Removal Technology", jointly developed by Middling Coal Huali and China University of Mining and Technology (Beijing) and other institutions, has been successfully selected as a 2025 National "Green Technology Innovation Case". This technology, through precise modification, enables activated carbon to exhibit high selective adsorption capacity for nitrogen-containing substances in concentrated brine, achieving near-zero emissions from high-salt wastewater with low cost and short process, providing green solutions for industries such as chemical and metallurgical.
The preparation process of super activated carbon has been certified as "China's Good Technology": A method for producing super activated carbon using a blending process, jointly developed by an environmental protection enterprise in Xiangyang and Sichuan University, has been successfully selected into the 2024 "China's Good Technology" project database. This technology has achieved six key breakthroughs, and the activated carbon produced exhibits high adsorption, high strength, high chemical stability, and excellent regeneration performance. Especially in large-scale flue gas desulfurization applications, it demonstrates significant advantages of greater desulfurization capacity, longer service life, and lower operating costs.
Academic research expands application potential: Recent scientific research continues to provide theoretical support for activated carbon modification. For instance, surface modification of commercial granular activated carbon using cationic polymer (PDADMAC) can significantly enhance its adsorption capacity and efficiency for anionic dyes (such as methyl red) in water, and maintain stability in complex aqueous environments, demonstrating great potential in the treatment of printing and dyeing wastewater. Another review published in "Water Purification Technology" also points out that by optimizing raw material selection, activation process (such as controlling the carbonization temperature at around 700°C), and surface modification (adding acidic oxygen-containing functional groups), the ability of activated carbon to treat complex VOCs (volatile organic compounds) waste gases generated in industries such as mineral processing and chemical engineering can be effectively improved.
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