Stratification of reactivity determines nitrate removal in groundwater

Patchiness in Groundwater Nitrate Removal in a Riparian Forest

Our ability to identify and manage riparian sites for groundwater nitrate (NOAh) removal is limited by uncertainty surrounding the relative importance of plant uptake vs. microbially mediated removal processes. Microcosm studies often demonstrate negligible transformation rates in the subsoil of riparian forests, even in situations where groundwater well networks showed substantial groundwater ...

Nitrate removal from groundwater using electrolytic reduction method

Nitrate (NO3) contamination of groundwater is a major concern throughout intensive agricultural areas. In the present laboratory scale study, an electrolytic reduction method employing copper cathode and insoluble triple mixed oxide anode was studied for the denitrification of groundwater in a divided cell. Influence of process parameters such as pH, current density and time were studied and th...

Tracing atmospheric nitrate in groundwater

Introduction Conclusions References

Influence of carbon source on nitrate removal of contaminated groundwater in a denitrifying submerged filter.

The effectiveness of three selected carbon sources (sucrose, ethanol and methanol) on submerged filters for the removal of nitrate from contaminated groundwater (100mg NO3(-)/litre), was studied. Process yields, nitrite accumulation, biomass production and growth of denitrifying bacteria were compared. Process yields, represented as ratio C/N were 2.5, 1.08 and 1.1 for sucrose, ethanol and meth...

Development of Novel Bioelectrochemical Systems for in Situ Nitrate Removal from Groundwater