The high-efficiency cationic polyelectrolyte is specifically designed for solid-liquid separation processes, enhancing sedimentation, thickening, and clarification by promoting the aggregation of suspended particles for efficient solids removal. It is widely used in the clarification of aqueous liquor through sedimentation, sludge dewatering to improve liquor recovery or enable effective solid disposal via filtration and centrifugation, and in the treatment of primary and secondary clarifier sludge, optimizing the performance of rotary vacuum filters, belt presses, and centrifuges.