To achieve a more stringent ambient-air ozone standard promulgated in 1997, the U.S. EPA haa established summer NOx emisaiona limits for fossil-fired electric power generating units in the Ozone Transport Rulemaking region, consisting of 22 eastern and midwestem states and the District of Columbia These jurisdictions are required to submit State Implementation Plans by September 1999 in respons...

a biofilm sequencing batch reactor with a volume of 1.42 m3, nylon nets providing a 4,140 m2/m3 support area for biofilms and an automated operation with 8 hour cycles was studied. the duration of the experiment was 135 days. removal efficiencies e≥ 80% were obtained for carbonaceous matter, producing an effluent with 31±26.8 mg/l of filtered cod, 7±3.6 mg/l of bod5 and 12±3.2 mg/l of toc. the ...

Two innovative control technologies for air pollution from the combustion of municipal solid waste (MSW) are discussed. The system concepts of Selective Cat­ alytic Reduction (SCR) and the Electron Beam (E­ Beam) process are presented, along with the extent of demonstrated experience. Estimated capital and op­ erating costs are calculated for each system for oper­ ation on a 1000 tons/day MSW m...

In order to develop low-temperature (below 200 °C) and SO2-tolerant catalysts for selective catalytic reduction (SCR) of NOx, a series of cheap M/bauxite (M = Mn, Ni and Cu) catalysts were prepared using bauxite as a support. Their SCR performances are much superior to typical V2O5/TiO2, the addition of M into bauxite results in significant promotion of NOx removal efficiency, especially at low...

A new concept for non-catalytic NO removal from combustion flue gas is being developed at the University of Kentucky Center for Applied Energy Research (CAER). Flue gas cleanup would be achieved through the use of activated carbons for the selective capture of NOx at stack temperatures between 70-120°C followed by desorption of a concentrated stream of NO, at elevated temperatures, near 140-150...

a biofilm sequencing batch reactor with a volume of 1.42 m3, nylon nets providing a 4,140 m2/m3 support area for biofilms and an automated operation with 8 hour cycles was studied. the duration of the experiment was 135 days. removal efficiencies e≥ 80% were obtained for carbonaceous matter, producing an effluent with 31±26.8 mg/l of filtered cod, 7±3.6 mg/l of bod5 and 12±3.2 mg/l of toc. the ...

An innovative static/oxic/anoxic (SOA) activated sludge process characterized by static phase as a substitute for conventional anaerobic stage was developed to enhance biological nutrient removal (BNR) with influent ammonia of 20 and 40 mg/L in R1 and R2 reactors, respectively. The results demonstrated that static phase could function as conventional anaerobic stage. In R1 lower influent ammoni...

There has been renewed interest in evaluating the effect of biomass co-firing on the multi-pollutant control system such as Selective Non-catalytic Reduction (SNCR) and oxygen enrichment. Emissions savings have been attained by combining SNCR and biomasscoal co-combustion under various oxygen enriched staged air levels. Biomasses with higher tendency of generating CO produced better reduction i...