Wastewater and sludge generated during metal refining typically contain high concentrations of metallic particles and impurities, with high solids content, viscosity, and corrosiveness. The production process is continuous with variable load, placing high demands on dewatering equipment stability, durability, and adaptability to high-solid sludge. Treatment systems must operate efficiently within limited space while ensuring dewatered sludge meets requirements for transport, recovery, or safe disposal.
Metal Refining Wastewater and Sludge Dewatering Applications
Industry Background
Technical Approach
The system follows a process of pre-thickening followed by mechanical dewatering. Metal refining wastewater and high-solid sludge are first reduced in volume in the thickening stage before undergoing solid-liquid separation in the dewatering unit. The equipment operates continuously with a compact layout, allowing rapid deployment within workshops or plant areas. The dewatered sludge has low and uniform moisture content, facilitating transport, resource recovery, or safe disposal, while minimizing operational and maintenance effort.
On-site Photos
The photos below show a Haibar dewatering unit supplied to a metal refining plant in Chile in 2022. The equipment was used to treat metal-containing wastewater and refining sludge, operating with stable performance and effective continuous operation. The dewatered sludge had low and uniform moisture content, meeting on-site transport and downstream disposal requirements, providing reliable technical support for wastewater management at the refining plant.
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