Preparation of Micro-Electrolytic Iron-Carbon Filler for Sewage by Recycling Metallurgical Dust

Runsheng Xu, Yuchen Zhang, Xiaoming Huang, Minghui Cao, Jiyong Yu, Jianliang Zhang, Heng Zheng, Johannes Schenk

Research output: Contribution to journalArticleResearchpeer-review


In this paper, a new iron-carbon micro-electrolytic filler for wastewater treatment was prepared using the blast furnace dust. The effects of preparation conditions on the performance of the filler during the wastewater treatment were investigated. The optimal preparation conditions of the filler were obtained, which provided an experimental theoretical basis for the use of metallurgical dust sludge in the preparation of micro-electrolytic fillers. From the results of treating methyl orange-simulated wastewater with fillers of different preparation conditions, it could be obtained that the improvement of the filler processing performance requires a suitable iron to carbon ratio, sintering time, and sintering temperature. The optimum preparation conditions were a 1:2 iron-carbon ratio, 30 min sintering time, and 1100 °C sintering temperature. The effect of treatment conditions on the performance of the iron-carbon micro-electrolytic filler was also investigated. The results showed that increasing the filler addition, increasing the treatment temperature, and decreasing the initial pH could effectively improve the treatment efficiency of the filler for methyl orange-simulated wastewater. More than 99% of the methyl orange could be removed in the wastewater under the conditions of 5 g of filler, 40 °C, and pH = 3.
Original languageEnglish
Article number673
Number of pages16
Issue number4
Publication statusPublished - 29 Mar 2023

Bibliographical note

Funding Information: This research was funded by the National Key R&D Program of China (No. 2022YFE0208100), the National Natural Science Foundation (No. 52274316), the Anhui Provincial Key Research and Development Plan (202210700037), and the Xinjiang Autonomous Region Major Science and Technology Special (2022A01003).

Publisher Copyright: © 2023 by the authors.


  • iron-carbon micro-electrolytic filler
  • metallurgical dust
  • preparation parameters
  • wastewater treatment

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