Validity of Energy Change as a Growth Parameter
Growth of bacterial cells has been reported to be proportional to the change in free energy between the substrate and bio-oxidation products. Growth of bacterial cells would be directly...

Waste-Induced Oxygen Uptake of An Alaskan Estuary
In Knik Arm, Alaska, oxygen consumption in 2○ waters inoculated with settled domestic sewage was measured over a twenty-day period. Oxygen uptake in the natural waters alone was substantial...

Coliform Aftergrowths in Chlorinated Storm Overflow
Laboratory tests were conducted on the possible bacteriological effects of combined sewer storm overflows into a tidal estuary. A standard overflow mixture was diluted with 3 to 25 volumes...

Coliform-Fecal Coliform Bacterial in Tidal Waters
The fecal coliform-coliform relationship has been examined for several estuaries on Long Island to evaluate proposed fecal coliform standards for shellfish growing waters. The level of...

Viability of Long-Storaged Airborne Bacterial Aerosols
Radioactive tagged Escherichia coli cells were aerosolized from distilled water suspension and stored for 4 hr in a storage chamber where temperature and relative humidity were under control....

Enteric Disease Criteria for Recreational Waters
A critical review is given of the overall subject of bacteriological water quality control procedures, criteria and standards and their epidemiological basis, considering the adoption...

Filed Tests on Chlorination of Poliovirus in Sewage
Full-scale field tests on the chlorination of poliovirus in sewage were conducted using the effluent at a small trickling filter plant. A vaccine strain of poliovirus was taken as a model...

Effects of Impoundments on Water Quality
Changes occurring in the quality of water during its passage through Tennessee River reservoirs and during lengthy storage in tributary impoundments are observed. Seasonal variations of...

An Oxidation Pond as a Tertiary Treatment Device
Tertiary treatment is becoming necessary to effect greater removal of BOD, solids, and coliform organisms from the effluents of conventional secondary wastewater treatment facilities....

Role of Protozoa in the Diphasic Exertion of BOD
Mechanisms for the causation of the plateau in diphasic oxygen uptake were investigated. Studies were conducted in the Warburg apparatus and the BOD bottle, using heterogeneous populations...

Closed Ecological Systems
Long term life support requires the use of a closed ecological system. The attainable degree of closure is determined by the extent of conversion achieved in the waste recovery system....

Studies in Force Main Aeration
Studies of an existing system showed air injection into a force main was an effective, economical, and reliable measure for controlling sulfides generations. Additional benefits included...

Coliform Standards for Recreational Waters: Progress Report of the Public Health Activities Committee of the Sanitary Engineering Division
Coliform standards are a major public health factor in judging the sanitary quality of recreational waters. There is little, if any, conclusive proof that disease hazards are directly...

Chlorination of Mixed Sewage and Storm Water
Experiments in various sewage treatment plants are discussed; evaluation of bacterial removal by chlorination of raw sewage, by post-chlorination of effluents, and by providing chlorine...

Metabolism of Organic Sulfonates by Activated Sludge
Discussion of possibilities of bacterial metabolism of ABS substances in sewage; study is described in which 8 activated sludges were developed on 4 simple aromatic sulphonates and 4 analog...

Sanitary Considerations of Five-Mile Ocean Outfall
Discussion of engineering considerations which led to construction of submarine outfall of Los Angeles, Calif, Hyperion plant; results of general as well as specific studies are presented;...

Chlorination of Mixed Sewage and Storm Water
Experiments in various sewage treatment plants are discussed; evaluation of bacterial removal by chlorination of raw sewage, by post-chlorination of effluents, and by providing chlorine...

Sanitary Considerations of Five-Mile Ocean Outfall
Discussion of engineering considerations which led to construction of submarine outfall of Los Angeles, Calif, Hyperion plant; results of general as well as specific studies are presented;...

Metabolism of Organic Sulfonates by Activated Sludge
Discussion of possibilities of bacterial metabolism of ABS substances in sewage; study is described in which 8 activated sludges were developed on 4 simple aromatic sulphonates and 4 analog...

Coliform Organisms as an Index of Water Safety
Progress Report of Committee on Public Health Activities; report is summary of current opinions and scientific investigations relating to use of coliform organism as basis for determining...

 

 

 

 

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