Abstract: A process for stabilizing in situ soluble mercury in deposits of mercury-containing materials which comprises treating the deposits with a stabilizing amount of an inorganic sulfur compound. Suitable inorganic sulfur compounds include sulfides, alkali metal thiosulfates, alkaline earth metal thiosulfates, iron thiosulfates, alkali metal dithionites, and alkaline earth metal dithionites. These inorganic sulfur compounds react with soluble mercury to convert it to insoluble mercury compounds and substantially inhibit its removal by elution with water from the deposits of mercury-containing material.The process may be used to treat land areas, landfill deposits, or submarine sediment deposits to reduce soluble mercury concentrations to a few parts per billion.

Abstract: A current conductor assembly for conducting electric current to electrodes in cells for the electrolysis of a salt solution is comprised of a conductor and a nonconductive casing for the conductor. There is a space between the conductor and the casing with an inlet in the casing for receiving a fluid. The conductor assembly has means for supplying a pressurized fluid to the space between the conductor and the casing; means for sealingly attaching one end of the conductor assembly to the electrodes, where this end is immersed in the salt solution; and a compressible sealing assembly for the opposite end of the conductor assembly comprised of a compression means and a sealing means.The conductor assembly employs the pressurized fluid to prevent corrosive attack of the conductor metal should a leak develop in the conductor assembly.

Abstract: A method has been devised for removing hexavalent chromium from concentrated aqueous alkali metal chlorate solution by reacting the solution with an inorganic sulfur containing compound and separating divalent and trivalent chromium compounds from the solution. Alkali metal hypohalites may be simultaneously removed from the chlorate solution by reaction with excess inorganic sulfur containing compound.