EFFECTS OF A HEAVY RAINFALL ON REDOX POTENTIAL AND ACIDITY OF A WATERLOGGED PEAT

1974 ◽  
Vol 54 (2) ◽  
pp. 133-135 ◽  
Author(s):  
V. F. HAAVISTO
Keyword(s):  
Redox Potential ◽  
Plant Development ◽  
Heavy Rainfall ◽  
Normal Plant ◽  
Sphagnum Peat ◽  
Reduction Potentials ◽  
Oxidation Reduction ◽  
Valence States ◽  
Reduced Forms

The oxidation-reduction potentials of the upper 50 cm of a waterlogged, floating, Sphagnum peat mat were reduced an average of 47 mv by heavy rainfall, while expected small but insignificant changes occurred in acidity. Changes of this magnitude in redox potential will significantly alter valence states of some ions and may produce concentrations of the reduced forms that will detrimentally affect normal plant development.

Development of the Redox Probe Field Technique★

CORROSION ◽  
1958 ◽  
Vol 14 (6) ◽  
pp. 26-30 ◽  
Author(s):  
F. E. COSTANZO ◽  
R. E. McVEY
Keyword(s):  
Seasonal Variation ◽  
Redox Potential ◽  
Soil Resistance ◽  
Probe Field ◽  
Redox Probe ◽  
Field Technique ◽  
Reduction Potentials ◽  
Oxidation Reduction ◽  
Bacterial Corrosion ◽  
Profile Study

Abstract A description is given of a field technique developed to obtain oxidation-reduction potentials of soils through the use of a probe. The results of all tests with this probe indicate that redox potential can be an extremely useful tool for corrosion engineers. The instrument is rugged enough for use in the field but sensitive enough to find even small indications of bacterial corrosion. A comparison is made between redox data and the following items: (1) Pipe-to-CuSO4 profile study, (2) Four-point soil resistance survey, (3) pH readings, (4) Earth current readings, and (5) Seasonal variation. 2.4.2

scholarly journals Studies on the Oxidation-Reduction Potentials of Heme Proteins

1965 ◽  
Vol 240 (8) ◽  
pp. 3317-3324
Author(s):  
Maurizio Brunori ◽  
Jeffries Wyman ◽  
Eraldo Antonini ◽  
Alessandro Rossi-Fanelli
Keyword(s):  
Heme Proteins ◽  
Reduction Potentials ◽  
Oxidation Reduction

scholarly journals SULFHYDRYL OXIDATION-REDUCTION POTENTIALS DERIVED FROM THERMAL DATA

1937 ◽  
Vol 117 (1) ◽  
pp. 281-308
Author(s):  
Henry Borsook ◽  
Emory L. Ellis ◽  
Hugh M. Huffman
Keyword(s):  
Reduction Potentials ◽  
Oxidation Reduction ◽  
Thermal Data ◽  
Sulfhydryl Oxidation

scholarly journals OXIDATION-REDUCTION POTENTIALS OF THE METHEMOGLOBIN-HEMOGLOBIN SYSTEM

1939 ◽  
Vol 131 (2) ◽  
pp. 649-662 ◽  
Author(s):  
John Fuller Taylor ◽  
A. Baird Hastings
Keyword(s):  
Reduction Potentials ◽  
Oxidation Reduction

scholarly journals Microbial Removal of Pb(II) Using an Upflow Anaerobic Sludge Blanket (UASB) Reactor

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 512
Author(s):  
Jeremiah Chimhundi ◽  
Carla Hörstmann ◽  
Evans M. N. Chirwa ◽  
Hendrik G. Brink
Keyword(s):  
Treatment Process ◽  
Removal Rate ◽  
Upflow Anaerobic Sludge Blanket ◽  
Uasb Reactor ◽  
Anaerobic Sludge ◽  
Reduction Potentials ◽  
Oxidation Reduction ◽  
Anaerobic Sludge Blanket ◽  
Microbial Removal ◽  
Maximum Removal

The main objective of this study was to achieve the continuous biorecovery and bioreduction of Pb(II) using an industrially obtained consortia as a biocatalyst. An upflow anaerobic sludge blanket reactor was used in the treatment process. The bioremediation technique that was applied made use of a yeast extract as the microbial substrate and Pb(NO3)2 as the source of Pb(II). The UASB reactor exhibited removal efficiencies of between 90 and 100% for the inlet Pb concentrations from 80 to 2000 ppm and a maximum removal rate of 1948.4 mg/(L·d) was measured. XRD and XPS analyses of the precipitate revealed the presence of Pb0, PbO, PbS and PbSO4. Supporting experimental work carried out included growth measurements, pH, oxidation–reduction potentials and nitrate levels.

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