Sewage disinfection

MILLER, BURKHARDT, EHRLICH, AND PETERSON-SEWAGE DISINFECTION... 

There are two reasons why the concentration of quaternaries is beheved to remain at a low level in sewage treatment systems. First, quaternaries appear to bind anionic compounds and thus are effectively removed from wastewater by producing stable, lower toxicity compounds (205). Anionic compounds are present in sewer systems at significantly higher concentrations than are cations (202). Second, the nature of how most quaternaries are used ensures that their concentrations in wastewater treatment systems are always relatively low but steady. Consumer products such as fabric softeners, hair conditioners, and disinfectants contain only a small amount of quaternary compounds. This material is then diluted with large volumes of water during use. 

Sanitizing and Disinfecting (e.g., for mmiicipal water supplies, swimming pools) Waste and Sewage Treatment... 

NafXll — 2500(X) tpa (on a dry basis) u.sed mainly for household liquid bleach, laundries, disinfection of swimming pools, municipal water supplies and sewage, and the industrial manufacture of N2H4 and organic chemicals. 

Gerba, C. P., Wallis, C., and Melnick, J. L. (1977a). Application of photodynamic oxidation to the disinfection of tapwater, seawater, and sewage contaminated with poliovirus. Photochem. Photobiol. 26, 499-504. 

An adequate supply of clean, potable WATER is one of the primary requirements for good health. Traditionally, health hazards associated with water have been the classic waterborne diseases, namely, typhoid, cholera, and hepatitis. The advent, advancement, and practice of the science of bacteriology after the late 18th century led to the recognition of the causes and sources of these diseases, which resulted in the development of disinfection processes and in the recognition of the necessity to prevent public potable water sources from pollution from sewage and postdisinfection contamination. 

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