Chemical-Mechanical Alteration of Elemental Sulfur

1972 ◽  
pp. 201-207
Author(s):  
JOHN M. DALE
Keyword(s):  
Elemental Sulfur

Scanning Electron Microscope Study of Bacteria on Mineral Surfaces

1976 ◽  
Vol 34 ◽  
pp. 130-131
Author(s):  
V.K. Berry
Keyword(s):  
Oxidation Reaction ◽  
Electron Microscope Study ◽  
Elemental Sulfur ◽  
Thiobacillus Ferrooxidans ◽  
Physical Contact ◽  
Metal Sulfides ◽  
Low Grade ◽  
Mineral Surfaces ◽  
Mineral Surface ◽  
Scanning Electron Microscope Study

There are two strains of bacteria viz. Thiobacillus thiooxidansand Thiobacillus ferrooxidanswidely mentioned to play an important role in the leaching process of low-grade ores. Another strain used in this study is a thermophile and is designated Caldariella .These microorganisms are acidophilic chemosynthetic aerobic autotrophs and are capable of oxidizing many metal sulfides and elemental sulfur to sulfates and Fe2+ to Fe3+. The necessity of physical contact or attachment by bacteria to mineral surfaces during oxidation reaction has not been fairly established so far. Temple and Koehler reported that during oxidation of marcasite T. thiooxidanswere found concentrated on mineral surface. Schaeffer, et al. demonstrated that physical contact or attachment is essential for oxidation of sulfur.

Elemental sulfur in Eddy County, New Mexico

Circular ◽  
1970 ◽  
Author(s):  
Jim S. Hinds ◽  
Richard R. Cunningham
Keyword(s):  
New Mexico ◽  
Elemental Sulfur

Identification of Taste and Odour Compounds from Western Lake Ontario

1984 ◽  
Vol 19 (1) ◽  
pp. 111-118 ◽  
Author(s):  
B.G. Brownlee ◽  
D.S. Painter ◽  
R.J. Boone
Keyword(s):  
Water Supply ◽  
Water Samples ◽  
Elemental Sulfur ◽  
Lake Ontario ◽  
Direct Link ◽  
Municipal Water Supply ◽  
Municipal Water ◽  
Western Lake ◽  
Odour Concentration

Abstract During August, 1983 geosmin was identified in a municipal water supply drawn from western Lake Ontario. The geosmin concentrations were 0.01-0.07 μg L-1, within the range for threshold odour concentration of 0.01-0.2 μg L-1. 2-Methylisoborneol was not detected. The odour 'event' coincided with a dieoff of Cladophora in the lake, but we were not able to establish a direct link between the dieoff and geosmin production. Decomposing Cladophora in shoreline areas produced a strong odour in the air. 3-Methylindole, elemental sulfur, dimethyl tetrasulfide, and dimethyl pentasulfide were tentatively identified in water samples collected from these areas, but geosmin and 2-methylisoborneol were not detected.

scholarly journals Remediation of arsenic-contaminated paddy soil: Effects of elemental sulfur and gypsum fertilizer application

2021 ◽  
Vol 223 ◽  
pp. 112606
Author(s):  
Dengxiao Zhang ◽  
Guanghui Du ◽  
Wenjing Zhang ◽  
Ya Gao ◽  
Hongbin Jie ◽  
...  
Keyword(s):  
Paddy Soil ◽  
Elemental Sulfur ◽  
Fertilizer Application ◽  
Soil Effects ◽  
Contaminated Paddy Soil

scholarly journals Inverse vulcanization of octenyl succinate-modified corn starch as a route to biopolymer–sulfur composites

2021 ◽  
Vol 2 (7) ◽  
pp. 2391-2397
Author(s):  
Moira K. Lauer ◽  
Andrew G. Tennyson ◽  
Rhett C. Smith
Keyword(s):  
Succinic Anhydride ◽  
Elemental Sulfur ◽  
Corn Starch ◽  
Subsequent Reaction ◽  
Octenyl Succinic Anhydride

Herein we report a route to sulfur–starch composites by the modification of corn starch with octenyl succinic anhydride (OSA) and its subsequent reaction with elemental sulfur to generate OSSx (where x = wt% sulfur, either 90 or 95).

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