Belt Press Machine For Sludge Dewatering Applications
The belt press machine is primarily applied downstream of dissolved air flotation (DAF) units, suitable for treating low-concentration, high-viscosity, oil/colloid-containing sludge generated by flotation processes. It is particularly well-adapted for medium-to-large-scale wastewater treatment projects in industries such as food processing, textile dyeing, and mechanical manufacturing. Where sludge oil content is controllable, continuous operation is required, and cost-effectiveness is prioritized, this belt press machine represents an economically efficient preferred solution. Sludge Characteristics Suitable for the Belt Press Machine The belt press machine handles a relatively broad range of sludge types, effectively treating both low-concentration residual activated sludge and higher-concentration primary or mixed sludge. Key compatible sludge properties include: Higher inorganic content / Moderate organic matter: Performs well with municipal primary sludge, digested sludge, mixed sludge (primary + residual), and industrial sludges (e.g., papermaking, mineral processing, coal washing, metallurgy, certain chemical sludges). These sludges typically contain substantial inorganic particles, forming easily releasable cakes with lower belt adhesion. Adequate chemical conditioning: Requires effective flocculation (PAM) to form large, dense flocs critical for gravity drainage and shear resistance in the pressure zone. Poor adaptability to highly viscous/oily sludges: Highly sticky or oil-rich sludges cause severe belt clogging, difficult cleaning, and poor cake release. Chamber...