United States
Environmental Protection
Agency
Water Engineering
Research Laboratory
Cincinnati OH 45268
Research and Development
EPA/600/S9-87/031 Apr. 1988
AEPA Project Summary
Proceedings: Third Conference
on Progress in Chemical
Disinfection (CD-Ill)
Gilbert E. Janauer
The third in a series of biennial
conferences on progress in chemical
disinfection was held in Blnghamton,
New York, April 3-5, 1986. The
Conference was jointly sponsored by
the State of New York Research
Foundation Technology Transfer
Office; Lonza, Inc; and the U.S.
Environmental Protection Agency's
Water Engineering Research
Laboratory. The primary purpose of
the Conference was to bring together
researchers working on new
disinfectants and disinfection
concepts and those in the regulatory
and industrial community to discuss
progress and possible applications
in solving water treatment problems.
The proceedings of the conference
are a compilation of the speakers'
papers, poster session papers,
transcripts of a panel discussion,
and comments and questions
expressed following each paper.
Major topic areas included: advances
in industrial applications of
disinfectants, nonclassical and new
chemical disinfectants, point of use
water treatment, Giardia concerns,
and two general sessions covering a
variety of related topics. The
proceedings will be of interest to all
concerned with the potential for
improved disinfection processes for
drinking water.
This Protect Summary was
developed by EPA's Water Engineering
Research Laboratory, Cincinnati, OH,
to announce the contents of the
proceedings that are available in their
entirety in a separate report of the
same title (see Project Report
ordering information at back).
The conference proceedings
consists of 47 papers and abstracts given
in seven sessions. Four sessions were
devoted to specific subject areas and two
general subjects. Also included was a
poster session covering a variety of
subjects and a panel discussion by
session chairmen.
The first session was devoted to new
developments in industrial applications of
chemical disinfectants. Specific
disinfectants discussed included
hydrogen peroxide, peracetic acid,
glutaraldehyde, chlorine dioxide, ozone,
and chlorine. Applications included
drinking water, cooling towers, process
piping, and pharmaceutical and hospital
environments.
In the second session, newer
nonclassical disinfectants were
discussed. Papers were presented on
new halomine water disinfectants, surface
bonded disinfectants, and tetra-
nitromethane, a new broad spectrum
disinfectant. The surface bonded
disinfectants are of particular interest for
potential drinking water application
because they release little or no
disinfectant into the water. Inactivation of
the microorganisms requires contact with
the surface on which the disinfectant is
bound.
In another session, five papers on
various aspects of point-of-use water
treatment were given. Subjects included
the microbiology of activated carbon
units, a comparison of point-of-use
disinfection methods, military disinfection
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requirements, and mode of action and
methods for testing microbiological water
purifiers.
The important waterborne pathogen,
Giardia, was the subject of one session.
Four papers covered the resistance of
cysts to disinfectants, cyst detection, and
two broader overviews of the current
status of our knowledge of this pathogen.
The two general sessions and the
poster sessions covered a wide variety of
topics. Of particular interest were papers
on approaches to risk assessment
relating to waterborne pathogens,
mechanics of resistance to disinfectants,
interhalogen disinfectants, inactivation of
microorganisms on biofilms, and a
number of additional papers on
nonctessteal disinfectants.
Breakdown of the papers by subject
area shows that 34% related to water
disinfection; 30% to new concepts,
compounds, or disinfection methods; and
15% to regulatory and health aspects.
The conference concluded with a panel
discussion summarizing the entire
program.
The full report was submitted in
fulfillment of Cooperative Agreement No.
CR-813209 by the State University of
New York-Binghamton under the
sponsorship of the U.S. Environmental
Protection Agency.
Gilbert E. Janauer is with the University Center at Binghamton,
Binghamton, NY 13901.
J.C. Hoffis the EPA Project Officer (see below).
The complete report, entitled "Proceedings: Third Conference on Progress
in Chemical Disinfection (CD-Ill)," (Order No. PB 88-140 785/AS;Cost:
$44.95, subject to change) will be available only from:
National Technical Information Service
5285 Port Royal Road
Springfield, VA 22161
Telephone: 703-487-4650
The EPA Project Officer can be contacted at:
Water Engineering Research Laboratory
U.S. Environmental Protection Agency
Cincinnati, OH 45268
United States
Environmental Protection
Agency
Center for Environmental Research
Information
Cincinnati OH 45268
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