Microbial succession and mineral leaching in an artificial coal spoil
Journal Article
·
· Appl. Environ. Microbiol.; (United States)
OSTI ID:6163984
An artificial pyritic coal spoil was prepared and examined over a period of 1.5 years for changes in the population of various physiological varieties of bacteria and also for mineral leaching. Heterotrophic bacteria were the first to dominate the spoil. Sulfur-oxidizing autotrophic bacteria (Thiobacillus) and finally iron-oxidizing bacteria (Thiobacillus ferrooxidans) increased in the population, the latter becoming the dominant species where acidity was greatest. Partition of species paralleled partition of acidity in the spoil. Molds (notably, Aspergillus), algae (Chlorococcales, Oscillatoria, Navicula), cilliated and flagellated protozoa, an arthropod (Podura aquatica), and a moss (aberrant Physcomitrium pyriforme) were observed. The mineral salts leached from the spoil, in decreasing order, were the sulfates of magnesium (predominantly hexahydrite), calcium (gypsum), sodium, aluminum (alunogenite), and iron.
- Research Organization:
- Univ. of Missouri, Columbia
- OSTI ID:
- 6163984
- Journal Information:
- Appl. Environ. Microbiol.; (United States), Journal Name: Appl. Environ. Microbiol.; (United States) Vol. 36:6; ISSN AEMID
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
550700 -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
ALGAE
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM SULFATES
ALUNITE
ANIMALS
BACILLUS
BACTERIA
CALCIUM COMPOUNDS
CALCIUM SULFATES
COAL MINING
DISSOLUTION
INVERTEBRATES
IRON COMPOUNDS
IRON SULFATES
LEACHING
MAGNESIUM COMPOUNDS
MAGNESIUM SULFATES
METABOLISM
MICROORGANISMS
MINERALS
MINING
OXYGEN COMPOUNDS
PH VALUE
PLANTS
POPULATION DYNAMICS
POTASSIUM COMPOUNDS
POTASSIUM SULFATES
PROTOZOA
SEPARATION PROCESSES
SODIUM COMPOUNDS
SODIUM SULFATES
SULFATES
SULFUR COMPOUNDS
THIOBACILLUS FERROXIDANS
TRANSITION ELEMENT COMPOUNDS
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
550700 -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
ALGAE
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM SULFATES
ALUNITE
ANIMALS
BACILLUS
BACTERIA
CALCIUM COMPOUNDS
CALCIUM SULFATES
COAL MINING
DISSOLUTION
INVERTEBRATES
IRON COMPOUNDS
IRON SULFATES
LEACHING
MAGNESIUM COMPOUNDS
MAGNESIUM SULFATES
METABOLISM
MICROORGANISMS
MINERALS
MINING
OXYGEN COMPOUNDS
PH VALUE
PLANTS
POPULATION DYNAMICS
POTASSIUM COMPOUNDS
POTASSIUM SULFATES
PROTOZOA
SEPARATION PROCESSES
SODIUM COMPOUNDS
SODIUM SULFATES
SULFATES
SULFUR COMPOUNDS
THIOBACILLUS FERROXIDANS
TRANSITION ELEMENT COMPOUNDS