||Gamma radiation treatment of waters from lignite mines /
||Central Research and Design Inst. for Opencast Mining, Wroclaw (Poland).;Industrial Environmental Research Lab., Cincinnati, OH. Resource Extraction and Handling Div.
|| Environmental Protection Agency, Office of Research and Development [Office of Energy, Minerals, and Industry], Industrial Environmental Research Laboratory ; For sale by the National Technical Information Service,
Mine water. ;
Mine waters ;
Coal mines ;
Water treatment ;
Gamma rays ;
Cobalt 60 ;
Chemical analysis ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||xii, 91 pages : illustrations ; 28 cm.
||Discussed in this report are results of laboratory investigations carried out with the application of gamma radiation for the purification of waters drained from surface lignite mines. These waters are polluted to a considerable extent with suspended matter of various sizes, a large quantity of which is colloidal particles, mainly clay, that create turbidity and colour. Moreover there is often a high oxygen demand and occasionally a high content of iron. The remaining chemical physical parameters of the mine water do not diverge from the levels required for waters discharged to surface flows and reservoirs. The investigations have shown a positive influence of Co-60 gamma radiation on the speed of suspended matter sedimentation, starting with an absorbed dose of 500 kRad. An optimal dose was found to be 1000 kRad. Above this dose the acceleration of velocity of settling particles was not proportional to the applied energy value. The investigations found relationship between the absorbed dose and the reduction in turbidity, oxygen demand and iron content.
||Grant no. 05-534-3. Feb. 1979. Includes bibliographical references. Microfiche.
||Cincinnati, Ohio :
|Corporate Au Added Ent
||Industrial Environmental Research Laboratory (Cincinnati, Ohio) ; Central Research and Design Institute for Opencast Mining.
|Corp Au Ser Add Ent
||Interagency energy-environment research and development program report ; EPA-600/7-79-064. United States. ; Interagency energy-environment research and development program report ; EPA-600/7-79-064. United States. ; Interagency energy-environment research and development program report ; EPA-600/7-79-064. United States.
|PUB Date Free Form
|Series Title Untraced
||Interagency energy-environment research and development program report ; EPA-600/7-79-064
||PC A06/MF A01
|OCLC Time Stamp
|OCLC Rec Leader
||01576nam 2200337Ka 45020