Mine Waste Disposal in the Ocean: An Introduction

The environmental effects of mining waste disposal at Lihir Gold Mine, Papua New Guinea

Mining in its broadest sense is the process of obtaining useful minerals from the earth’s crust. A mineral is generally defined as any natural accruing substance of definite chemical composition and consistent physical properties. An ore is a mineral or combination of minerals from which a useful substance, such gold, can be extracted and marketed at a price that will recover the costs of minin...

Cements in Radioactive Waste Disposal

The use of cement and concrete to immobilise radioactive waste is complicated by the wideranging nature of inorganic cementing agents available as well as the range of service environments in which cement is used and the different functions expected of cement. For example, Portland cement based concretes are widely used as structural materials for construction of vaults and tunnels. These const...

Contract "Waste Disposal

We are a privately held corporation that is engaged in the business of contract reclamation of chemicals for reuse and disposal of chemicals where reclamation is not economically feasible. The idea of this business was conceived several years ago with the serious planning and financing stages developing about four years ago. Then subsequent plant site development resulted in the beginning of op...

Developments in Nuclear Waste Disposal

Nuclear waste disposal.

-Experiments are described in which dose-response data have been obtained for EMT6 mouse tumour cells growing in vivo and exposed to various cytotoxic agents. A comparison has been made of the response of solid tumours in the flank and of rapidly growing lung nodules. The results are discussed with regard to their cell kinetic implications and compared with our results for the chemosensitivity ...