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Researchers Develop Novel Approach for Quantifying Nitrate Discharge from Groundwater to Streams
Researchers Quantifying Nitrate Discharge Groundwater Streams
2016/11/29
Novel groundwater sampling (age, flux, and nitrate) carried out beneath a streambed and in wells was used to estimate (1) the current rate of change of nitrate storage, dSNO3/dt, in a contaminated unc...
Synthesis and characterisation of hydrotalcite from bauxite residue liquor and magnesium nitrate
Synthesis characterisation hydrotalcite bauxite residue liquor magnesium nitrate
2012/3/30
The extraction of alumina from bauxite by the Bayer process produces a slurry by-product referred to as ‘bauxite residue’ or ‘red mud’. The liquid component of the slurry is highly alkaline and requir...
Preliminary Identification of Ground-water Nitrate Sources Using Nitrogen and Carbon Stable Isotopes,Kansas
Preliminary Identification Ground-water Nitrate Sources Nitrogen and Carbon Stable Isotopes
2009/10/20
Increasing nitrate-N in ground water is a problem in many areas with limited ground-water supplies, such as west-central Kansas. However, potential sources of nitrate-N are not known. Nitrate-N concen...
Stable isotopic detection of ammonium and nitrate assimilation by phytoplankton in the Waquoit Bay estuarine system
Stable isotopic detection ammonium and nitrate assimilation phytoplankton Waquoit Bay estuarine system
2014/4/22
We measured concentration and δ15N of chlorophyll a (Chl a), NO3-, and NH4+ along a salinity gradient in Childs River, Massachusetts, in winter, spring, and summer. We used the δ15N of Chl a as a prox...
A new explanation for the unusual critical behavior of calcite and sodium nitrate, NaNO3
A new explanation unusual critical behavior calcite sodium nitrate NaNO3
2012/4/1
The phase-transition behavior of both calcite and the isostructural compound NaNO have longbeen thought to be anomalous. In particular, the ? critical exponent for the orientational order-disor-der t...
Reduction of Nitrate By Fe2+ in Clay Minerals
Clayey till Exchangeable ferrous iron Illite Mossbauer Nitrate Oxidized Structural ferrous iron Unoxidized
2011/12/27
In the 12 km2 catchment area of Syv creek, Denmark, moderate to high concentrations of nitrate (NO3−) occurred in the upper part of the oxidized zone (oxic-I), but dropped within the lower subox...