Disposal methods of metal sludge

ZHENGZHOU, China - July 17, 2025 - PRLog -- Metal sludge mainly comes from the treatment of wastewater generated in industrial production processes such as metal processing, smelting, and electroplating. These industries use various metal ions in the production process. During the wastewater treatment process, these metal ions react with the added chemicals to form insoluble substances such as metal hydroxides, which precipitate to form metal sludge. Metal sludge contains metal ions, solid particles, heavy metals, etc. The harmful substances in it will have an impact on the environment and human health, so it is necessary to safely and effectively treat and utilize metal sludge.

Metal sludge drying is necessary because it can significantly reduce sludge volume, reduce transportation and disposal costs, promote the stabilization of heavy metals, and improve the feasibility of subsequent treatment and reduce environmental pollution risks.

Metal sludge dryer is usually a rotary drum structure, which uses a rotating drum and hot air to heat the metal sludge and evaporate the water in it, thereby achieving the purpose of drying. Specifically, the wet sludge enters the drum from the feed end, and is continuously lifted and dropped by the lifting plate (lifting plate) on the inner wall of the drum, fully contacting with the hot air to achieve heat transfer and water evaporation. The dried sludge is discharged from the discharge end, completing the entire drying process. For specific types of metal sludge, the equipment is designed with optimized structure and process to achieve a higher processing capacity.

Zhengzhou Jiutian is committed to the research and development of sludge dryers and has rich experience. If you are interested in our metal sludge dryer, please contact us, we will make free plan for you.

Product website: https://www.zzjtmachinery.com/product/dryer/50.html