1. EPA Notification, S.O. 393(E), dt. 16th April 1987.
2. EHS Guidelines as on April 30 (2007), General Manufacture Integrated Steel Mills, www.ifc.org/ifcext/enviro.nsf/Content/Environmental Guidelines.
3. The Making, Shaping and Treating of Steel, 10th ed., Association of Iron and Steel Engineers, Pittsburgh, PA, 1995, p.1084.
4. K. Listed Hazardous Wastes from Specific Sources Appendix C, www.cesenvironmental.com/K List.
5. Recovery of Metals from Sludge and Wastewaters;Krishnan,1993