scholarly journals XXVI.—On the estimation of organic carbon and nitrogen in water analysis, simultaneously with the estimation of nitric acid

1881 ◽  
Vol 39 (0) ◽  
pp. 144-149
Author(s):  
M. Whitley Williams
Keyword(s):  
Nitric Acid ◽  
Organic Carbon ◽  
Water Analysis ◽  
Carbon And Nitrogen

Stabilization of Organic Carbon and Nitrogen in Consolidating Benthal Deposits

1985 ◽  
Vol 17 (6-7) ◽  
pp. 929-940 ◽  
Author(s):  
C. W. Bryant ◽  
L. G. Rich
Keyword(s):  
Organic Carbon ◽  
Model Verification ◽  
Volatile Acid ◽  
Free Energies ◽  
Organic Loading ◽  
Carbon And Nitrogen ◽  
Loading Rates ◽  
Degradation Reactions ◽  
The Individual ◽  
Organic Deposits

The objective of this research was to develop and validate a predictive model of the benthal stabilization of organic carbon and nitrogen in deposits of waste activated sludge solids formed at the bottom of an aerated water column, under conditions of continual deposition. A benthal model was developed from a one-dimensional, generalized transport equation and a set of first-order biological reactions. For model verification, depth profiles of the major interstitial carbon and nitrogen components were measured from a set of deposits formed in the laboratory at 20°C and a controlled loading rate. The observed sequence of volatile acid utilization in each benthal deposit was that which would be predicted by the Gibbs free energies of the individual degradation reactions and would be controlled by the reduction in interstitial hydrogen partial pressure with time. Biodegradable solids were solubilized rapidly during the first three weeks of benthal retention, but subsequent solubilization occurred much more slowly. The benthal simulation effectively predicted the dynamics of consolidating, organic deposits. Simulation of organic loading rates up to 250 g BVSS/(m2 day) indicated that the stabilization capacity of benthal deposits was far above the range of organic loading rates currently used in lagoon design.

Soil Organic Carbon and Nitrogen Variations with Vegetation Succession in Passively Restored Freshwater Wetlands

Wetlands ◽  
2021 ◽  
Vol 41 (1) ◽  
Author(s):  
Yu An ◽  
Yang Gao ◽  
Xiaohui Liu ◽  
Shouzheng Tong ◽  
Bo Liu ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Vegetation Succession ◽  
Freshwater Wetlands ◽  
Carbon And Nitrogen

Dissolved organic carbon and nitrogen in the Western Black Sea

2007 ◽  
Vol 105 (1-2) ◽  
pp. 140-150 ◽  
Author(s):  
Hugh W. Ducklow ◽  
Dennis A. Hansell ◽  
Jessica A. Morgan
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Black Sea ◽  
Carbon And Nitrogen

scholarly journals Legacies of agriculture and urbanization in labile and stable organic carbon and nitrogen in Sonoran Desert soils

Ecosphere ◽  
2014 ◽  
Vol 5 (5) ◽  
pp. art59 ◽  
Author(s):  
David Bruce Lewis ◽  
Jason P. Kaye ◽  
Ann P. Kinzig
Keyword(s):  
Organic Carbon ◽  
Sonoran Desert ◽  
Desert Soils ◽  
Carbon And Nitrogen
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