Search Results for the EPA National Library Catalog

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Select Item Title Year Published
15N Natural Abundance and (15)N Labelling Studies in Forest Ecosystems. 1994
A comparison of oxidation ditch plants to competing processes for secondary and advanced treatment of municipal wastes / 1978
A study of nitrate respiration in the activated sludge process / 1980
A study of nitrification and denitrification / 1970
A study of nitrification and denitrification, 1970
A water quality modelling study of the Delaware Estuary / 1978
Advanced Waste Treatment Performance Evaluation: Summary Report. 1984
Agricultural practices and drainage from agricultural lands. 1968
Anaerobic Inhibition of Trace Organic Compound Removal during Rapid Infiltration of Wastewater. 1984
Application of plastic media trickling filters for biological nitrification systems / 1972
Application of Plastic Media Trickling Filters for Biological Nitrification Systems. 1973
Application of plastic media trickling, filters for biological nitrification systems / 1973
Application of the Ecotone Concept in Defining Nutrient Management Requirements for the Upper Potomac River Basin. 1993
Appraisal of powdered activated carbon processes for municipal wastewater treatment / 1977
Areawide Assessment Procedures Manual. Volume III. 1976
Assessment of cost and effectiveness of biological dual nutrient removal technologies in the Chesapeake Bay drainage basin / 1988
Assessment of single-stage trickling filter nitrification / 1991
Assessment of single-stage trickling filter nitrification / 1991
Assessment of the nitrifying ability of activated sludge 1980 (tentative methods) 1983
Autotrophic denitrification using sulphur electron donors / 1978
Autotrophic denitrification using sulphur electron donors / 1978
Availability and Uptake of Inorganic Nitrogen in a Mixed Old-Growth Coniferous Forest. 1993
Bacterial Bioassay for Level I Toxicity Assessment. 1983
Behavior of soil organic nitrogen 1968
Biochemical Oxygen Demand of Shell Chemicals with Cover Letter. 1982
Biochemical reactor analysis 1977
Biochemical studies of the Potomac estuary--summer 1978 / 1979
Biological Aerated Filter Evaluation (Journal Version). 1988
Biological Fixation and Transformation of Nitrogen in Small Impoundments. 1970
Biological Phosphorus Removal. 1986
Biological removal of carbon and nitrogen compounds from coke plant wastes / 1973
Biological Treatability of KRW Energy Systems Gasifier PDU (Process Development Unit) Wastewaters. 1985
Cape Cod Waste Water Renovation and Retrieval System, a Study of Water Treatment and Conservation First Year of Operation. 1975
Capital and O and M Cost Estimates for Attached Growth Biological Wastewater Treatment Processes. 1989
Carbon, nitrogen, and phosphorus removal in staged nitrification-denitrification treatment / 1975
Carbonaceous and nitrogenous demand studies of the Potomac Estuary / 1977
Case Histories of Nitrification and Denitrification Facilities. 1974
Characterization of sewage sludge and sewage sludge-soil systems / 1984
Community structure, nutrient dynamics, and the degradation of diethyl phthalate in aquatic laboratory microcosms 1982
Community structure, nutrient dynamics, and the degradation of diethyl phthalate in aquatic laboratory microcosms / 1982
Composted municipal refuse as a soil amendment / 1973
Composted Municipal Refuse as a Soil Amendment. 1973
Continuous biological denitrification of wastewater 1974
Continuous-Flow Method for Measuring Effects of Chemicals on Soil Nitrification. 1990
Control of Nitrate Contamination of Ground Water Associated with Land Disposal of Municipal Sewage. 1972
Control of nitrogen transformations in soils completion report / 1974
Converting rock trickling filters to plastic media : design and performance / 1980
Converting rock trickling filters to plastic media : design and performance / 1980
Cost of Columnar Denitrification for Removal of Nitrogen from Wastewater. 1972
Cost of Dispersed Floc Nitrification and Dentrification for Removal of Nitrogen from Wastewater. 1970
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