Reducing the Leachability of Nickel & Zinc in Phosphate Sludge by Using Reagents

Abstract

This durable tool is eco-friendly, excellent for disposal and safe as per CPCB guidelines. The main objective of this research is to develop a minimum reduction for the use of Portland MAAs in the flow of phosphate mud and to ensure the safe disposal of flow of phosphate mud and toxic substances such as nickel and zinc. Preliminary analysis of waste physical properties such as water content, pH, solubility and availability of toxic metals such as Cd, Zn, Cr, Pb, Cu and Hg. According to the CPCB Storage Water Inlet Test Standard, the stabilization of phosphate mud based on moisture begins with the addition of lime first, followed by the gradual addition of cement containing low toxic metals. After solidification for 24 hours, the samples were rolled and ground, and WLT was run to measure metal availability. Consistent performance is the result of comparing the chemical composition of treated and untreated samples at WLT after 24 hours. Finally, check the performance certificate against the CPCB limits.