nitrogen – TechConnect Briefs

Nitrogen-doped porous carbon for the removal of Cr or As in aqueous solutions

Han J.S., Ha D.G., Han J.S., Kang S-H, Seoul National University, KR

The removal of hexavalent chromium and arsenic from aqueous solutions was investigated with nitrogen-doped porous carbon. Excellent adsorption behavior was obtained due to the strong attraction between [HCrO4]- or [H2AsO4]- and nitrogen sites under weak [...]

New biodegradable polymers based on previously unknown functional groups for drug and gene delivery

Yoo J., Graf T.A., Kuruvilla D.J., D’Mello S.R., Salem A.K., Bowden N.B., University of Iowa, US

We developed the synthesis of three new sets of polymers based on bonds between sulfur and nitrogen for applications in drug and gene delivery. These polymers were designed to slowly degrade in water at pH [...]

The Effects of Bioaugmentation in Collection System

Newbold A., Dickerson R., Kelter M., In-Pipe Technology, US

The wastewater treatment plant in the Town of Orange Park, Florida was challenged to meet a new discharge permit issued by the Basin Management Action Plant (BMAP) for the lower St. John’s River that was [...]

The Effects of Bioaugmentation in Collection System

Newbold A., Dickerson R., Kelter M., In-Pipe Technology, US

The wastewater treatment plant in the Town of Orange Park, Florida was challenged to meet a new discharge permit issued by the Basin Management Action Plant (BMAP) for the lower St. John’s River that was [...]

Wastewater Effluent Total Nitrogen of 3 mg/l with Cost Effective, Low Maintenance Cluster Treatment System

Lombardo P., Lombardo Associates, Inc., US

Excessive nitrogen levels pose a threat to the ecological health of water resources in the United States due to excessive algal growth that causes ecological decline. The NitrexTM denitrification filter is a low cost, low [...]