nitrate media Articles
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Novel catalytic and mechanistic studies on wastewater denitrification with hydrogen
The present work reports up-to-date information regarding the reaction mechanism of the catalytic hydrogenation of nitrates in water media. In the present mechanistic study, an attempt is made, for the first time, to elucidate the crucial role of several catalysts and reaction parameters in the mechanism of the NO3−/H2 reaction. Steady-state isotopic transient kinetic analysis (SSITKA) ...
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Onsite wastewater nitrogen reduction with expanded media and elemental sulfur biofiltration
A passive biofiltration process has been developed to enhance nitrogen removal from onsite sanitation water. The system employs an initial unsaturated vertical flow biofilter with expanded clay media (nitrification), followed in series by a horizontal saturated biofilter for denitrification containing elemental sulfur media as electron donor. A small-scale prototype was operated continuously over ...
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Northwestern Lancaster, Pennsylvania - Case Study
In August 2011, AdEdge Water Technologies, LLC was contacted by Watek Engineering Corporation to design, manufacture and start up a nitrate removal system and a softening system for the Northwestern Lancaster County Authority in Manheim, Pennsylvania. The existing water system consisted of one well feeding water at 225 gpm to an elevated storage tank which feeds the distribution system. The ...
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Preliminary studies on removal of nitrate and hardness from ground water using polystyrene beads
Ground water has emerged as the primary water deficiency reduction tool in most developing countries. Recently, the quality of ground water has deteriorated due to over-exploitation and contamination resulting from anthropogenic activities. A broad range of physical, inorganic and organic, bacteriological, and radioactive parameters are found in ground waters. The presence of nitrate and ...
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Evaluation of Ceralite-A as Ammonia Removal Biological Treatment Support Media - Case Study
Project Description A novel biological oxidation filtration treatment process was evaluated for removal of ammonia from a California groundwater source. In addition to ammonia, this groundwater had other contaminants such as iron, manganese, methane, hydrogen sulfide odor, color, high organic carbon, etc. As such, more conventional treatment processes such as breakpoint chlorination were deemed ...
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Decoding the AdEdge treatment matrix
U.S. drinking water utilities come up against a variety of water quality issues. From aesthetic issues to naturally occurring contaminants and contaminants resulting from industry processing, no water source is without problems. Contrarily, many of them have co-occurring contaminants, which complicates the treatment process. Although there is no single treatment solution that will successfully ...
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Meeting Water Needs With Desalination
As demand for fresh water increases, communities look to the sea and to previously unusable aquifers With the world’s population consuming water in record amounts and water scarcity causing a host of geopolitical and humanitarian problems, technology can be harnessed to help meet the demand. One increasingly important solution to freshwater scarcity is treating saline water through a ...
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