Search Results for the EPA National Library Catalog

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Operational Control Procedures for the Activated Sludge Process. Addendum No. 1 to the February 1975 Part 3-B. Calculation Procedures for Step-Feed Process Responses. 1975
Operational Control Procedures for the Activated Sludge Process. Part I - Observations. Part II - Control Tests. 1978
Operational Control Procedures for the Activated Sludge Process. Part III-B. Calculation Procedures for Step-Feed Process Responses. 1975
Operational results for the Piscataway model 5 mgd AWT plant / 1978
Operational Stability of the Extended Aeration Process. 1971
Operations and Maintenance Study, Valdosta, Georgia Sewage Treatment Plant. 1972
Operations manual : anaerobic sludge digestion / 1976
Operations manual : sludge handling and conditioning / 1978
Opportunities for energy conservation and load shaping in sludge management systems 1992
Optimal Conditioning Procedures for Waste Activated Sludge Disposal. 1972
Optimal procedures for the processing of waste activated sludge 1973
Optimal Procedures for the Processing of Waste Activated Sludge. 1973
Optimization and design of an oil activated sludge concentration process / 1974
Optimization of wastes treatment with reference to biogas and protein recovery / 1983
Optimizing a petrochemical waste bio-oxidation system through automation / 1975
Optimizing Lipid Biostabilization. 1970
Organic Chemical Fate Prediction in Activated Sludge Treatment Processes. 1985
Organic contaminants in waste water, sludge, and sediment occurence, fate, and disposal / 1989
Organic extraction utilizing solvents : CF Systems Corporation. 1989
Organic nutrient factors effecting algal growths / 1973
Orientation to wastewater treatment operation, training manual. 1971
Our mouldy earth : a study in the fungi of our environment with emphasis on water / 1970
Out of sight, out of mind; report. 1972
Overview of conventional and innovative land-based thermal technologies for waste disposal. {microfiche}/ by Oberacker, D.A. 1991
Overview of Metals Recovery Technologies for Hazardous Wastes. 1990
Oxidation ditch treatment of meatpacking wastes / 1979
Oxidation ditch treatment of meatpacking wastes / 1979
Oxidative Treatment of Industrial Wastewater. 1977
Oxygen activated-sludge wastewater treatment systems; design criteria and operating experience. 1973
Oxygen aeration at Newtown Creek / 1979
Oxygen consumption in continuous biological culture / 1971
Oxygen consumption in continuous biological culture. 1971
Oxygen transfer efficiency surveys at the Jones Island TreatmentPlants, 1985 - 1988 1994
Oxygen transfer efficiency surveys at the South Shore Wastewater Treatment Plant 1994
Oxygen transfer studies at the Madison Metropolitan Sewerage District Facilities 1994
Oxygen utilization in activated sludge plants : simulation and model calibration / 1989
Oxygen utilization in activated sludge plants : simulation and model callibration / 1988
Oxygen-activated sludge plant completes two years of successful operation / 1977
Ozone for industrial water and wastewater treatment : an annotated bibliography / 1980
Package Sewage Treatment Plants Criteria Development. Part II: Contact Stabilization. 1968
Package treatment plants : operations manual. 1977
Packinghouse Waste Treatment. 1970
Parallel Evaluation of Air- and Oxygen-Activated Sludge. 1981
Parallel evaluation of air-and oxygen-activated sludge / 1981
Parallel evaluation of constant and diurnal flow treatment systems / 1978
Parasites and the land application of sewage sludge / 1981
Parasites in southern sludges and disinfection by standard sludge treatment / 1981
Parasites in southern sludges and disinfection by standard sludge treatment / 1981
Parasites in southern sludges and disinfection by standard sludge treatment {Microfiche} 1981
Park Development with Wet Digested Sludge. 1973
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