HEZHl Green sand reclamation plant was developed to dispose of Used Foundry Green Sand (UFGS)remains one of the significant challenges faced by foundry industry nowadays. They include verticalfluidized bed, horizontal fluidized bed and a novel ball-mill type attrition and sieving unit. The cost per tonof reclaimed sand is higher in case of fluidized bed based prototypes while in case of attrition and sievingbased prototype, it is less than half of the cost of the fresh sand. The experimental data generated on thetwo-stage attrition and sieving unit under different conditions is further used to arrive at a semi-empiricalcorrelation and the optimum set of design and operating parameters to get the best performance. Theslurry is easily mulled or mixed-in during green-sand preparation, and the improved green-sand propertiesthat result include: increased areen strenath at eauivalent MB clay levels;* Reduced friability; ” lmprovedflowability and toughness; ” increased wet-tensile strength; ” Increased green compressive and shearstrengths.