Hydrogeology and Geochemistry of Acid Mine Drainage in Ground Water in the Vicinity of Penn Mine and Camanche Reservoir, Calaveras County, California: Summary Report, 1993-95
... ppt , part per trillion ( volume ) ] Tritium ( tritium units ) Calculated atmospheric partial pressure ( ppt ) CFC - 12 Model CFC - ages of waters ( years A.D. ) CFC - 113 CFC - 11 CFC - 12 CFC - 113 occurred after recharge , and before ...
Concentrated Mine Drainage Disposal Into Sewage Treatment Systems: The Disposal of Acid Brines from Acid Mine Drainage in Municipal Wastewater Treatment
... following procedures outlined by them . Both control AS cultures and AAB ... not succeeded in obtaining growth on the solid medium recommended for that ... amoeba " with a very dense granular protoplasm , blunt pseudopodia , and a ...
Design Manual: Neutralization of Acid Mine Drainage
Neutralization of Acid Mine Drainage Industrial Environmental Research Laboratory (Cincinnati, Ohio). Rapid mixing of the polymer solution with mine drainage flow is desired to insure adequate polymer dispersion . A small flash mix tank ...
... manual " . Environmental Research Laboratory , U.S. Environmental Protection Agency , 106 p . Alpers , C.N. , Nordstrom , D.K. and Ball , J.W. 1989. " Solubility of jarosite solid solutions ... Diffusion : Mass Transfer in Fluid Systems . ( ...
Rotating Disc Biological Treatment of Acid Mine Drainage
... disc material used in construction of bench - scale units were acrylic plastic . Corrosion - resistant aluminum and steel were used for the 0.5- and 2.0 - m RBC troughs , respectively . Disc construction material for commercial RBC ...
Projects of the Pollution Control Analysis Section
... log by using theoretical equations , from the neutron log by using an ... sonic and neutron geophysical logs . Each type of logging tool measures a ... sonic log records the transit time of an acoustic pulse traveling from a sonic ...
... settling units observed , 62 were ponds . These were gen- erally simple excavations , although sev- eral were more ... settling units Ponding operations Types and usage Thickeners Settling | Polishing Permanent Emergency ponds ponds ...
Effects of Coal Mining on the Water Resources of the Tradewater River Basin, Kentucky
... RSD , in percent , is calculated according to the follow- ing equation ( Taylor , 1987 ) : where RSD = S Χ S RSD = × 100 X relative standard deviation , = standard deviation , and || || ( 2 ) = mean of all replicate concentrations ...
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