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Conversion of crankcase waste oil into useful products
1971
Maizus, Solfred | Urquhart, Kenneth
Control of mine drainage from coal mine mineral wastes
1971
Barthauer, G. L. | Kosowski, Z. V. | Ramsey, J. P.
A project has been underway which attempts to demonstrate practical means of abating pollution from coal mine mineral wastes. The site included a refuse pile occupying approximately 40 acres and a slurry lagoon complex of 50 acres. In the report, the characteristics and acid formation rate of the refuse pile are described. The average rate of acid formation for this refuse pile is 198 pounds of acidity, as CaCO₃, per acre per day. Acid contribution from the slurry lagoons was not determined but appears to be negligible. As an abatement measure, a number of experimental vegetative covers were tested. Grass was successfully established with and without the use of topsoil, weathering well for one year. The long-term effects of establishing a grass cover directly on the refuse without the use of topsoil are not known at this time.
Показать больше [+] Меньше [-]A survey of alternate methods for cooling condenser discharge water | System, selection, design, and optimization
1971
Smith, N. | Maulbetsch, John S.
Polymeric materials for treatment and recovery of petrochemical wastes
1971
Klein, Elias | Desai, Shyamkant V. | Smith, James K. | Weaver, Robert E. C.
Advanced wastewater treatment as practiced at South Tahoe | Advanced waste water treatment as practiced at South Tahoe
1971
Culp, Russell L. | Evans, David R. | Wilson, Jerry C.
Removal of nitrogen from tile drainage
1971
Livestock waste disposal and water pollution control
1971
Hansen, Ralph W. (Ralph Waldo)
Feasibility studies of applications of catalytic oxidation in wastewater
1971
Chen, Juh Wah | Smith, Gerald Vinton
Dissolved and particulate organic carbon in some Colorado waters
1971
Reed, Edward B.
Instantaneous amounts of organic carbon, both particulate and dissolved, in a number of freshwaters ranging from unproductive tarns to moderately productive reservoirs were measured by acid-persulfate digestion and infrared absorption. Organic carbon was designated as net seston carbon, filter seston carbon, or dissolved carbon based on filtering techniques. Repeated sampling showed amounts of organic carbon, either dissolved or particulate, fluctuated considerably over short periods of time; the dissolved fraction probably varying less than particulate forms. Almost daily measurements in samples incubated over three week periods also revealed erratic changes, with no clear reduction in total organic carbon. The data have descriptive value, although they cannot, at this time, be related satisfactorily to the general limnological knowledge.
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