Dissolved Organic Matter
From flood to drought: Transport and reactivity of dissolved organic matter along a Mediterranean river
... term dissolved organic matter (DOM) refers to the pool of organic molecules that are dissolved in ...of organic carbon on Earth (Findlay and Sinsabaugh, ...of organic ...
234
Function and structure of river sediment biofilms and their role in dissolved organic matter utilization
... fluvial organic matter is measured in stream sediments when compared to the epilithic biofilm (Romani and Sabater 2001), sediment bacteria being responsible for over 90% of community respiration (Pusch and ...
192
Heterotrophic microbial activity and organic matter degradation in coastal lagoons of Colombia
... the dissolved organic material is quite refractory against bac- terial attack like ...utilizable organic substances are relative- ly small (Michaelis and Ittekkot 1982), high variations of their ...
14
Availability and use of organic matter in stream ecosystems: the role of biofilms
... lignins, organic acids, and other less well- characterized compounds, such as humic substances (Thurman ...of organic nitrogen and amongst the most labile fractions of bulk OM (Spitzy and Ittekkot ...
170
TítuloOptimization of the landfill leachate treatment by the Fenton process
... In the previous assays, after adjusting the leachate pH at 3, a high percentage of the organic matter was removed from the supernatant. Taking into account this fact, these assays were repeated using the ...
13
Litterfall and organic matter decomposition in a seasonal forest of the eastern Chaco (Argentina)
... Leaves were collected from three indi- viduals of each of the four species and analysed to determine nutrient content and C/N ratio, in Autumn 1996 and again on Spring 1997 in order to find out if differences were ...
10
Uso potencial del bivalvo Mytella charruana en el tratamiento de aguas residuales
... It is important to clarify that besides the capacity of filtration, some species of bivalves are characterized by their tolerance to environmental conditions that are not tolerable for other groups of animals; this is ...
12
Effects of organic matter in arsenic removal during neutralization of acid mine drainage
... The presence of POC at pH 3 was attributable to the precipitation or aggregation of humic substances at low pH through cation bridges (Mouvenchery, Kučerík, Diehl, & Schaumann, 2012; Tipping, 2004). The higher ...
94
TítuloHenry's law constants of volatile organic compounds in activated sludge and wastewater at 298 K
... The above results indicate that a medium to high concentration of activated sludge can help in enhancing the water solubility of hydrophobic compounds such as benzene, toluene and xylenes (BTX). This solubility increase ...
8
Caracterización fisicoquímica de un Calcisol bajo diferentes sistemas de uso de suelo en el noreste de México
... The productive capacity of a soil is determined by intrinsic properties such as texture and structure, while others, such as pH and organic matter, can be manipulated by management (Mishra and Sharma, ...
27
Decomposition and nutrient release from leaf litter in Eucalyptus grandis plantations on three different soils in Entre Ríos, Argentina
... The C:N, C:P and N:P ratios, as well as lignin:N, have been used as quality indexes of decomposing organic matter in different ecosystems (Brinson 1977, Vogt et al. 1986, Baker III et al. 2001). Ratios also ...
10
Identification and hydrocarbon expulsion history simulation of the effective source rocks in the Dongying Formation, Paleogene, Bohai Sea area, eastern China
... different organic matter types, based on the data of source rock thickness, current buried depth, organic matter abundance and organic types, ...
16
ANÁLISIS MORFOLÓGICO Y DE HÁBITAT EN EL HÍBRIDO Quercus glabrescens x Q. rugosa
... 1:2), organic matter per cent (Walkley and Black, 1934), nitrogen (extracted by 2N potassium chloride and determined by steam dragging), phosphorous (Olsen et ...
18
Atmospherics particulate matter fractions measured at Camagey, Cuba. Preliminary results
... The statistical results of the series of mean daily concentrations values of PM fractions are summarized in Table I. It shows that PM10 concentration mean daily values range from 13.15 g/m3 to 73.35 g/m3 with an ...
11
PHYSICO-CHEMICAL WATER PARAMETERS VARIATION IN THE FLOATING CAGES OF SNAPPERS (LUTJANUS PERU AND L. GUTTATUS) FARMED IN TROPICAL SEA
... upper Gulf of Thailand is rich in nutrients since it receives domestic sewage, industrial and shrimp farming discharge. In this study the area where the cages are located receives domestic sewage and effluent from inland ...
6
TítuloPlankton carbon budget in a coastal wind driven upwelling station off A Coruña (NW Iberian Peninsula)
... web. Organic matter losses balanced or even exceeded production (% L/P >100) during early spring (February and March 1999) and during September 1999, assuming a con- stant DOC release over 24 ...of ...
13
Phytoplankton Profitability and Use as Organic Matter Source by Pinna nobilis
... & Vicente, 1982; Richardson et al., 1999; Siletic & Peharda, 2003). The large size and fast growth suggest that the species must have a particular feeding strategy facilitating food input and assimilation. The ...
6
Patterns of phytoplankton and primary production variability in the Mediterranean Sea based on remote sensing data
... The nine characteristic temporal patterns obtained from SOM analysis (Fig. 8) reveal small differences in PP among the different regions. Most variations are due to changes in the magnitude of carbon fixation but ...
166
Evaluation Of The Cellular Growth Of The Diatom Skeletonema Costatum (Greville) Cleve 1873 In Alternative Mediums
... require organic substrates to develop growth, such as the mixotrophic and heterotro- phic cultures, glucose or acetate is an adequate source of energy and carbon ...
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