The application of activated alumina ceramic ball in the field of environmental protection
Release time：2025-04-09
Release time：2025-04-09
Activated alumina ceramic ball, as a kind of porous and highly dispersed inorganic material, is gradually becoming an important technical support in the field of environmental protection of its unique physicochemical properties. This material through structural optimization and functional modification, in industrial wastewater treatment, exhaust gas purification, resource recycling, and other fields shows the potential for diversified applications, providing a new solution for environmental governance.
First, the depth of application in the field of water treatment
In the protection of drinking water, activated alumina ceramic balls achieve fluoride removal through adsorption. Its porous structure provides a large specific surface area, which can be combined with fluoride ions through the ion exchange mechanism to form stable compounds. For example, in groundwater defluoridation equipment, activated alumina ceramic balls are used as the core filter media, which, when activated by aluminum sulfate solution, can reduce the concentration of fluoride ions in the water from an exceeded state to a non-hazardous range. This technology is characterized by easy operation and strong regeneration capacity and has been applied in drinking water treatment projects in many regions. In industrial wastewater treatment, activated alumina ceramic balls can be directed against heavy metal ions and organic pollutants adsorption. For example, in the wastewater treatment system of a chemical park, the hydroxyl group on its surface can be complex with lead, mercury, and other heavy metal ions to form insoluble precipitates. At the same time, for the dye molecules in printing and dyeing wastewater, activated alumina ceramic ball through physical adsorption and chemical degradation of synergistic effect, effectively reduce COD (chemical oxygen demand) and chromaticity.
Second, the technological breakthrough in exhaust gas purification
In industrial waste gas treatment, activated alumina ceramic ball as a catalyst carrier, can significantly improve the conversion efficiency of pollutants. For example, the denitrification system of coal-fired power plants, loaded with vanadium and titanium oxides of activated alumina balls can promote the selective catalytic reduction reaction of nitrogen oxides and ammonia, and convert harmful gases into nitrogen and water. The catalysts maintain stable activity in the temperature range of 200-400°C and are highly resistant to sulfur poisoning. For the treatment of volatile organic compounds (VOCs), activated alumina ceramic balls achieve purification through the dual mechanism of adsorption and catalytic oxidation. For example, in the exhaust gas treatment of the printing and packaging industry, its porous structure first adsorbs organic substances such as benzene and toluene and then decomposes them into carbon dioxide and water through catalytic combustion under high-temperature conditions. The advantage of this technology is that the adsorbent does not need to be replaced frequently, and long-term operation can be maintained through periodic regeneration.
Third, the innovative path of resource recycling
The application of activated alumina ceramic balls in the field of solid waste resources is also gradually expanding. For example, in the process of aluminum ash treatment, through the ‘CHPP multi-phase continuous catalytic leaching process’, activated alumina ceramic balls can be used as a catalyst carrier to promote the leaching of valuable metals (such as aluminum and iron) in aluminum ash, and to achieve the extraction of regenerated alumina. This technology not only reduces the emission of hazardous waste but also transforms aluminum ash into high-value-added products, with a resource conversion rate of 100%.
In the comprehensive utilisation of red mud, activated alumina ceramic balls can be used as adsorbent for treating residual alkali and heavy metals in red mud leaching solution. Through the synergistic effect of physical adsorption and chemical precipitation, it can effectively reduce the toxicity of the leaching solution and provide technical support for the stockpiling and resource utilisation of red mud.
Fourth, the technology development trend and challenges
At present, the research of activated alumina ceramic ball focuses on structure optimisation and functional modification. For example, the in-situ preparation technology developed by Shandong Xinplatinum Chemical Technology Co., Ltd. improves the mechanical strength and anti-sintering performance of the catalyst carrier and prolongs its service life by constructing a special structure of five-coordinated Al³⁺. In addition, its adsorption capacity and catalytic activity can be further enhanced by doping with rare earth elements or transition metals.
However, the application of activated alumina ceramic balls still faces some challenges. For example, in high humidity or high salt environments, its adsorption performance may be inhibited; part of the complex composition of industrial waste gas may lead to catalyst poisoning. In the future, it is necessary to improve its environmental adaptability and stability through material modification and process optimization.
Fifth. Policy and market promotion
With the continuous tightening of environmental protection policies, the market demand for activated alumina ceramic balls shows a growing trend. Ten departments issued the ‘implementation plan for the high-quality development of the aluminum industry (2025-2027)’ clearly put forward to promote clean energy substitution and comprehensive utilization of red mud, for the application of activated alumina ceramic ball provides policy support. According to industry reports, in 2025 domestic alumina production capacity will turn to excess, and environmental protection field demand growth will become a new market growth point.
Conclusion
Activated alumina ceramic ball with its unique physical and chemical properties, in the field of environmental protection, shows a wide range of application prospects. From drinking water to industrial pollution control, from exhaust gas purification to resource recycling, this material provides innovative solutions for environmental governance. With the continuous progress of technology and policy continued to promote, activated alumina ceramic ball is expected to play a greater role in green development, to help achieve the goal of sustainable development.
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