RESEARCH ON THE REMOVAL OF RADIUM FROM URANIUM .
and milling effluent. The normal methods used include: 1) barium chloride precipitation; 2) barite adsorption; and 3) pyrolusite removal of radium. In the barium precipitation process, good results for removal of radium can be obtained only when some sulfate ion exists in the effluent. The precipitated barium sulfate has poor deposition properties.