Results 271 to 280 of about 549,109 (310)

Dissolved Organic Carbon from Phytoplankton

2005
Dissolved organic carbon in the sea makes up some 700 gigatons according to conservative estimates. Even more important is the labile part, which constitutes more than 50% of newly produced DOC. The source of DOC production in the sea is photosynthetic algae.
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Dissolved Organic Carbon Losses from Tile Drained Agroecosystems

Journal of Environmental Quality, 2009
Artificial subsurface drainage is commonly used in midwestern agriculture and drainage losses of dissolved organic carbon (DOC) from such systems are an under‐quantified portion of the terrestrial carbon (C) cycle. The objectives of this study were to determine the effect of common agricultural management practices on DOC losses from subsurface tile ...
Matthew D, Ruark, Sylvie M, Brouder, Ronald F, Turco   +2 more
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Dissolved Oxygen as an Indicator of Bioavailable Dissolved Organic Carbon in Groundwater

Groundwater, 2011
Concentrations of dissolved oxygen (DO) plotted vs. dissolved organic carbon (DOC) in groundwater samples taken from a coastal plain aquifer of South Carolina (SC) showed a statistically significant hyperbolic relationship. In contrast, DO‐DOC plots of groundwater samples taken from the eastern San Joaquin Valley of California (CA)
Francis H, Chapelle, Paul M, Bradley, Peter B, McMahon, Karl, Kaiser, Ron, Benner   +4 more
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Removal of dissolved organic carbon using granular activated carbon

Water Research, 1993
Abstract Granular activated carbon (GAC) is used to reduce disinfection by-products by removing dissolved organic carbon (DOC). The optimum empty bed contact time (EBCT) for a single adsorber was determined and the influence of parallel bed operation on GAC usage rate was examined using both pilot-plant data and mass transfer models. To describe the
John C. Crittenden, Kartik Vaitheeswaran, David W. Hand, Elaine W. Howe, E.Marco Aieta, Carol H. Tate, Michael J. McGuire, Marshall K. Davis   +7 more
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Functional Groups of Dissolved Organic Carbon

1985
This chapter discusses the important functional groups of dissolved organic carbon, a basic introduction to the organic chemistry of dissolved organic carbon, and how functional groups of natural organic carbon interact with water. This chapter will be most useful for those just entering the field of organic geochemistry.
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Dissolved organic carbon

2023
Jason James, Rob Harrison
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Dynamics of chromophoric dissolved organic matter and dissolved organic carbon in experimental mesocosms

International Journal of Remote Sensing, 1999
Since CDOM can significantly influence the optical characteristics of Case II waters, we investigated potential sources of CDOM and DOC during a month-long mesocosm experiment. Nutrient additions resulted in a large phytoplankton bloom, followed by a rapid decline.
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Molecular weight distribution of dissolved organic carbon and dissolved organic halogen in advanced treated wastewaters

Environmental Science & Technology, 1984
Evaluation des performances de l'ultrafiltration pour separer les composes organiques dissous des eaux usees et eaux souterraines. Etude des changements dans la distribution des poids moleculaires des composes organiques dissous lors de l'epuration tertiaire et de la realimentation de ...
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Assimilable organic carbon (AOC) and biodegradable dissolved organic carbon (BDOC):

Water Research, 2001
Isabel C Escobar, Andrew A Randall
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Distribution and Cycling of Dissolved Organic Carbon and Colored Dissolved Organic Carbon on the West Florida Shelf

2002
Abstract : The long term goal of this project is to determine sources, sinks and dynamics of Colored Dissolved Organic Matter (CDOM) and Colored Dissolved Organic Carbon (CDOC) optical properties on spatial and temporal scales relevant to physical/biogeochemical/ optical modeling efforts currently in progress for the West Florida Shelf HYCODE site ...
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