Treating Municipal Drinking
Water with Gaseous
The Safe Drinking Water Act of 1974 and its
subsequent provisions have accomplished a great deal in cleaning
up and preserving our nation's water sources. However, the
tough new standards set by the EPA are creating unique challenges
to the thousands of municipal water plants across the country.
The majority of these plants were constructed well before 1974
and engineers are now faced with upgrading their technology
to meet the new standards. Other plants have found their water
sources, both surface and ground water, permeated with contaminates
not originally anticipated when the treatment facilities were
designed. Lastly, recent outbreaks of illness from microorganisms
such as Giardia and Cryptosporidium (Milwaukee, 1993) have
proven current treatment methods fall short in producing safe,
clean, potable water.