Municipal and industrial waste product utilization for bauxite mine reclamation

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6543930

Clark, M D

Laboratory and field studies were conducted on acidic bauxite mine soil to compare the effectiveness of fly ash and brown lime to ag-lime for pH and soluble salt control. After 3 additions (109 mt/ha) of liming materials, ag-lime and fly ash were superior to brown lime for controlling mine soil acidity over the three year period. All liming materials were equally effective in controlling soil salinity. Rye, wheat, and bermudagrass were grown sequentially from 1982 to 1984. Nitrogen treatments in the field consisted of the addition of anaerobically digested sewage sludge (50 mt/ha) and (424 kg/ha) commercial inorganic nitrogen fertilizer. Nitrogen mineralization characteristics of sewage sludge were compared to inorganic N fertilizer by measuring decomposition in the laboratory and ground cover establishment and dry matter production in the field. Field results indicated that inorganic N and sludge were equally effective in ground cover establishment and the production of dry matter for rye, wheat and bermudagrass in 1983. Forage tissues were analyzed for 16 trace elements (As, B, Ca, Cd, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, P, Pb, Se, and Zn). Results were compared between lime and nitrogen treatments for each grass crop and harvest time. Fly ash generally increased B content in forage tissue compared to the other lime materials. Wheat accumulated the highest amount. Tissue concentrations of (As, Cd, Cu, Fe, Mn, Ni, Pb, Se, and Zn) were sufficiently low enough to not be detrimental to grazing animals or the human food chain. Overall, levels of N, P, K, Ca, and Mg were sufficient to satisfy nutrient requirements for grazing animals.

• Research Organization: Arkansas Univ., Fayetteville (USA)
• OSTI ID: 6543930
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AEROSOL WASTES
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM ORES
ARSENIC COMPOUNDS
ASHES
BAUXITE
BIOLOGICAL EFFECTS
COPPER COMPOUNDS
ELEMENTS
FERTILIZERS
FLY ASH
GRASS
GROWTH
INDUSTRIAL WASTES
IRON COMPOUNDS
LAND RECLAMATION
LEAD COMPOUNDS
LIMING
MAGNESIUM COMPOUNDS
MANGANESE COMPOUNDS
METALS
MINES
MUNICIPAL WASTES
NICKEL COMPOUNDS
ORES
PH VALUE
PLANT GROWTH
PLANTS
RESIDUES
SLUDGES
TRACE AMOUNTS
TRANSITION ELEMENT COMPOUNDS
UNDERGROUND FACILITIES
UPTAKE
WASTE PRODUCT UTILIZATION
WASTES
ZINC COMPOUNDS