scholarly journals Effects of organic carbon, organic nitrogen, inorganic nutrients, and iron additions on the growth of phytoplankton and bacteria during a brown tide bloom

2001 ◽  
Vol 209 ◽  
pp. 19-34 ◽  
Author(s):  
CJ Gobler ◽  
SA Sañudo-Wilhelmy
Keyword(s):  
Organic Carbon ◽  
Organic Nitrogen ◽  
Inorganic Nutrients ◽  
Brown Tide ◽  
Brown Tide Bloom

Trace Metals and Dissolved Organic Carbon in an Estuary with Restricted River Flow and a Brown Tide Bloom

Estuaries ◽  
1999 ◽  
Vol 22 (3) ◽  
pp. 603 ◽  
Author(s):  
Eric Breuer ◽  
Sergio A. Sañudo-Wilhelmy ◽  
Robert C. Aller ◽  
Sergio A. Sanudo-Wilhelmy
Keyword(s):  
Trace Metals ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
River Flow ◽  
Brown Tide ◽  
Brown Tide Bloom

scholarly journals Removal of Inorganic Nutrient and Organic Carbon from Wastewater of Binh Dien Market Using Green Alga Chlorella sp

2016 ◽  
Vol 62 (4) ◽  
pp. 27-31
Author(s):  
Bui Manh Ha ◽  
Duong Thi Giang Huong ◽  
Luong Thi Hong Xuyen
Keyword(s):  
Organic Carbon ◽  
Oxygen Demand ◽  
Inorganic Nutrients ◽  
Potential Candidate ◽  
Algal Density ◽  
Wastewater Treatment Process ◽  
Traditional Markets ◽  
Chlorella Sp ◽  
Green Algal ◽  
Fresh Food

Abstract Traditional markets play a major role in socio-economics and constitutes a significant aspect of Vietnamese culture. However, wastewater streams discharged from the markets are generally characterized by a lot of inorganic nutrients and organic substances originated from fresh food processing units. They could lead to serious water contamination if discharged without proper treatment. This study applied microalgae Chlorella sp. for eliminating inorganic nutrients (NO3−-N, NH4+-N and PO43−-P) and organic carbon (Chemical oxygen demand-COD) from wastewater of the Binh Dien market. The removal efficiencies reached for NH4+-N > 86%, for NO3−-N > 72%, and for PO43−-P > 69%, respectively, at algal density of 49 × 104 cell mL−1, and for COD > 96% at algal density of 35 × 104 cell mL−1 after five cultivating days. The effluence satisfied the Vietnamese standard, column B, of the National technical regulation on industrial wastewater (QCVN 40:2011/BTNMT). The results demonstrated that the culture system composed of green algal Chlorella sp. could be a potential candidate for the removal of nutrients and organic carbon by a wastewater treatment process from the Binh Dien market.

scholarly journals Net accumulation and flux of dissolved organic carbon and dissolved organic nitrogen in marine plankton communities

2000 ◽  
Vol 45 (5) ◽  
pp. 1097-1111 ◽  
Author(s):  
Morten Søndergaard ◽  
Peter J. le B. Williams ◽  
Gustave Cauwet ◽  
Bo Riemann ◽  
Carol Robinson ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Marine Plankton ◽  
Plankton Communities

Organic nitrogen uptake and growth by the chrysophyte Aureococcus anophagefferens during a brown tide event

1997 ◽  
Vol 129 (2) ◽  
pp. 377-387 ◽  
Author(s):  
G. M. Berg ◽  
P. M. Glibert ◽  
M. W. Lomas ◽  
M. A. Burford
Keyword(s):  
Nitrogen Uptake ◽  
Organic Nitrogen ◽  
Brown Tide ◽  
Aureococcus Anophagefferens ◽  
Organic Nitrogen Uptake

Dissolved organic carbon and dissolved organic nitrogen concentrations and exports upstream and downstream of the Dallas–Fort Worth metropolis, Texas, USA

2016 ◽  
Vol 67 (9) ◽  
pp. 1326 ◽  
Author(s):  
J. A. Aitkenhead-Peterson ◽  
M. K. Steele
Keyword(s):  
Land Use ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Significant Relationship ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Urban Land Use ◽  
Fort Worth ◽  
Sewage Discharge ◽  
Effluent Discharge

Concentrations and export of dissolved organic carbon (DOC) and dissolved organic nitrogen (DON) from terrestrial landscapes to near-coastal zones vary with land use. Information on (DOC) and (DON) concentrations and exports from urban ecosystems is sparse; thus, their source from within urbanised watersheds such as soil or vegetation or from permitted sewage discharge is unknown. We examined DOC and DON concentrations and exports in four gauged subwatersheds in the humid subtropical, upper Trinity River basin, upstream and downstream of the Dallas–Fort Worth metropolis in Texas, USA. Annual average DOC concentrations ranged from 5.7±0.4 to 6.4±0.8mgL–1 and DON concentrations ranged from 0.31±0.05 to 0.33±0.14mgL–1. Dissolved organic carbon exports, which included permitted sewage discharge, ranged from 522kgkm–2 year–1 above Dallas–Fort Worth to 3637kgkm–2 year–1 below Dallas–Fort Worth. Permitted effluent discharge contributed between 1 and 35% of DOC loading above and below the Dallas–Fort Worth metropolis. DON exports ranged from 27 to 179kgkm–2 year–1 above and below Dallas–Fort Worth respectively. There was difficulty apportioning permitted effluent-discharge contribution to DON because of the transformations among nitrogen-species. A moderate but significant relationship was found between DOC and sodium concentrations (R2=0.45; P<0.0001; n=40) and between DOC and potassium concentrations (R2=0.45; P<0.0001; n=40). Dissolved organic nitrogen also displayed a significant relationship with sodium (R2=0.33; P<0.001; n=40) and potassium (R2=0.59; P<0.001; n=40), suggesting that increases in these cations to aquatic ecosystems may induce increases in DOC and DON concentrations. Although DOC export was significantly correlated with medium-density urban land use (r=0.96; P<0.05: n=4), DON export was not (r=0.93; P>0.05; n=4), suggesting that land-management practices and permitted point-source discharges have a significant effect on aquatic DOC and DON concentrations and exports derived from urban watersheds.

Dissolved nutrients and organic particulates in water flowing over coral reefs at Lizard Island

1983 ◽  
Vol 34 (6) ◽  
pp. 835 ◽  
Author(s):  
CJ Crossland ◽  
DJ Barnes
Keyword(s):  
Organic Carbon ◽  
Coral Reefs ◽  
Organic Nitrogen ◽  
Inorganic Nitrogen ◽  
Dissolved Nutrients ◽  
Reef Complex ◽  
Nutrient Levels ◽  
Lizard Island ◽  
Nitrogen Phosphorus ◽  
Benthic Zone

Concentrations of dissolved nutrients and organic particulates were measured in seawater flowing across the windward and leeward reef flats of the lagoonal reef complex at Lizard Island. Measurements were made during the day, at night, and at various stages of the tide over a period of several weeks. The reef complex, as a whole, did not consume or export statistically significant amounts of inorganic nitrogen, phosphorus, silicate, organic nitrogen or organic carbon. Depletion or elevation of nutrient levels in one benthic zone appeared to be balanced by production or consumption in downstream zones.

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