Performance and process optimization of porous ceramics prepared from electrolytic manganese residue using composite pore-making agents

YU Zhiyuan; GUO Jingqi; XU Youze; DAI Xin

doi:10.13205/j.hjgc.202507022

Volume 43 Issue 7

Jul. 2025

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YU Zhiyuan, GUO Jingqi, XU Youze, DAI Xin. Performance and process optimization of porous ceramics prepared from electrolytic manganese residue using composite pore-making agents[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(7): 202-209. doi: 10.13205/j.hjgc.202507022

Citation:

YU Zhiyuan, GUO Jingqi, XU Youze, DAI Xin. Performance and process optimization of porous ceramics prepared from electrolytic manganese residue using composite pore-making agents[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(7): 202-209. doi: 10.13205/j.hjgc.202507022

Citation:

YU Zhiyuan, GUO Jingqi, XU Youze, DAI Xin. Performance and process optimization of porous ceramics prepared from electrolytic manganese residue using composite pore-making agents[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(7): 202-209. doi: 10.13205/j.hjgc.202507022

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Performance and process optimization of porous ceramics prepared from electrolytic manganese residue using composite pore-making agents

doi: 10.13205/j.hjgc.202507022

YU Zhiyuan¹,
GUO Jingqi^1,2,
XU Youze¹,
DAI Xin^{1
,
,}

1. Key Laboratory of Water Pollution Control Technology, Hunan Research Academy of Environmental Sciences, Changsha 410004, China;
2. College of Life and Environmental Sciences, Central South University Forestry & Technology, Changsha 410000, China

Received Date: 2024-06-03
Accepted Date: 2025-01-20
Rev Recd Date: 2024-12-18

Available Online: 2025-09-11

Abstract

Abstract

Electrolytic manganese residue （EMR） is a kind of acidic solid waste which generated from filtration process in the manganese electrolysis industry. It contains a large quantity of harmful substances including heavy metals， and exhibits also high acidity. Inappropriate storage of EMR may cause serious environmental pollution. Proper disposal of EMR has become a critical constraint on development of manganese electrolysis industry. EMR contains a large amount of SiO₂， making it suitable as a raw material for producing EMR-based porous ceramics and other building materials， thereby enabling harmless and resource-efficient treatment. This could be a promising technical route to achieve bulk utilization of EMR. In this study， EMR was used as the ceramic aggregate， and kaolin was used as the binder to produce ceramics. The performance of two types of pore-forming agents， starch and dolomite， which have different pore-forming mechanisms was investigated. The porosity， water absorption， bulk density， compressive strength， and heavy metal adsorption capacity of EMR-based ceramics prepared with different binders were compared. Furthermore， the optimal process parameters for producing EMR-based porous ceramics were systematically discussed. The results showed that the EMR-based porous ceramics prepared with a composite pore-forming agent（doped with 15% dolomite and 15% starch） exhibited both high porosity and high compressive strength. These ceramics can be used as building materials or heavy metal adsorbents. The research findings provide valuable insights for developing high-performance EMR-based porous ceramic materials， thereby advancing the sustainable development of the electrolytic manganese industry.
- electrolytic manganese residue,
- EMR-based porous ceramics,
- composite pore-forming agent

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References(29)

References

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