Problems in Obtaining Adequate Sewage Disinfection
Quantitative data are presented concerning the several important factors involved in the wastewater chlorination process. The data indicate that initial mixing of the chlorine solution...

Natural Virus Inactivation Processes in Seawater
Data are presented which indicate that seawater possesses antiviral properties of a biological nature associated with specific marine bacteria. Twelve samples of natural seawater from...

Chlorination Dynamics in Wastewater Effluents
Chlorine was found to be a very rapid acting disinfectant. Eight milligrams per liter of chlorine decreased the coliform count of wastewater effluents to less than 100 per 100 ml in some...

Modern Concept of Disinfection
The literature on disinfection has been critically reviewed and the quantitative data analyzed in an effort to construct a modern concept of disinfection, the chemistry of disinfectants,...

Biological Control of Intestinal Bacteria and Viruses

Research on Sleepers River at Danville, Vermont
Research in hydrology and biology at Danville, Vermont is focused upon the complex physical processes in natural watersheds, leading to development of methods for predicting behavior of...

Probabilistic Variations in Ultimate First Stage BOD
Variations in the ultimate first stage BOD are found to be lognormally distributed under the hypothesis that the bacterial oxidation of organic matter is a first order reaction, and that...

Engineering Evaluation of Virus Hazard in Water
The evaluation is presented in terms of 13 questions: What virus infections may be spread through water? How important is water in transmitting virus disease? Can the coliform index be...

Virus Inactivation during Phosphate Precipitation
Phosphate removal from aqueous solutions by precipitation with calcium and aluminum results in large poliovirus Type I and bacteriophage T2 removals. Tests conducted in distilled water-phosphate...

Control of Bacterial Growths in Rapid Sand Filters
Nitrification has been observed in the rapid sand filters of many iron removal plants in Illinois. The biological oxidation of ammonia to nitrate by nitrifying organisms often results...

Bactericidal Properties of Chlorsulfamates

Halogen Action on Bacteria, Viruses, and Protozoa

Bactericidal Disinfection Testing by Micromethods

Enteric and Pathogenic Bacteria Dieoff Effects by Algae

Sources and Transport of Bacterial Indicators in Rural Streams

Dynamic Model of the Anaerobic Digestion Process
The major problem associated with the anaerobic digestion process has been its poor record with respect to process stability as evidenced by the reports of failing digesters. A dynamic...

Rationale of Standards for Use of Reclaimed Water
California has established standards for reclaimed waste water used for crop and landscape irrigation and recreational impoundments. Insofar as possible the standards avoid the use of...

Dialysis Separation of Sewage Sludge Digestion
The purpose was to study both stages of high-rate anaerobic digestion separately. Raw sludge fed into the acid fermentation tank provided substrate for the bacterial production of volatile...

Stable Alkanol Dispersion to Reduce Evaporation
Highly stable sol- or gel-type dispersions of long-chain alkanols in water have been prepared and shown to be more effective than powdered alkanol in reducing evaporation from water surfaces....

Incrustation in Water Pipelines
Results are presented of an inspection of the water supply system of Boulder City, Nevada, with respect to problems caused by bacterial incrustation in portions of the pipelines of the...

 

 

 

 

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