William J. Andrews, Jason R. Masoner, Oklahoma Water Science Center, U.S. Geological Survey The abandoned Picher mining district of northeastern Oklahoma was the largest source of lead and zinc in the world in the 1920s. After abandonment in the late 1960s, the district continued to be affected by severe environmental degradation, such as subsidence and metals such as cadmium and lead seeping f...

Historic mine sites are a major source of contamination to terrestrial and river environments. To demonstrate the importance of determining the significance of point and diffuse metal contamination and the related bioavailability of the metals present from abandoned mines a case study has been carried out. The study provides a quantitative assessment of a historic mine site, Wheal Betsy, southw...

Lead and zinc poisoning have been recorded in a variety of bird species, including migrating waterfowl such as Canada Geese (Branta canadensis), at sites contaminated with mine waste from lead and zinc mines in the Tri-State Mining District, Kansas, Oklahoma, and Missouri, USA. The adverse health impacts from mine waste on these birds may, however, be more extensive than is apparent from incide...

Stabilization was applied as a remediation option for immobilizing lead (Pb) in contaminated mine soil. Four types of waste materials were used stabilizing agents, namely oyster shells (WOS), calcined (COS), natural starfish (NSF), and spent-coffee-grounds-derived biochar (SCGB). The Pb-contaminated soil treated with the agents ranging from 0 to 10 wt% curing period 28 days. toxicity characteri...

In this paper we show that the problem of optimal mine planning can be cast in the framework of receding horizon control. Traditional formulations of this problem have cast it in the framework of mixed integer linear programming. In this paper, we present an alternative formulation of the mine planning problem using the “language” of control engineering. We show that this alternative formulatio...

Respirable dust is everywhere (in the surface and underground mine) operations its environs. Ririwai Tin mine laden with of metallic particles Arsenic (As), Chromium (Cr), Lead (Pb) Zinc (Zn). These are also found in soil. Continuous inhalation could lead to irreversible diseases. This paper addresses control dust, using previous review prevailing concentrates. research answers questions like w...