ABSTRACT

Tetra Tech India Limited (TTIL) was contracted by Hindustan Zinc Limited, Udaipur, India, to design a disposal facility to handle 750 m3/day of jarosite slurry waste from the hydrometallurgical processing of zinc sulphide concentrate. TTIL, with assistance from Tetra Tech EM Inc. (Tetra Tech), completed the design of a lined tailings pond near Udaipur, India, in 1999, and it is being constructed in 2000. In addition, a closure plan was designed to properly cover two existing ponds that were found to be leaking contaminants to the groundwater. This paper provides the characteristics of the jarosite slurry and leachate and the design criteria, and it describes the design components of the new pond and the cover for the existing ponds.