United States
                    Environmental Protection
Risk Reduction
Engineering Laboratory
Cincinnati, Ohio 45268
                    Research and Development
EPA/600/S9-91/047 Jan. 1992
igr EPA       Project  Summary
                     Proceedings of  International
                    Workshop  on  Research  in
                     Pesticide Treatment/Disposal/
                    Waste  Minimization
                    T. David Ferguson
                       An international workshop on treat-
                    ment, disposal, and waste minimization
                    of pesticides and pesticide wastes was
                    held in Cincinnati, OH, on February 26-
                    27,1991. The purpose of this workshop
                    was to work with government, pesticide
                    user groups, pesticide producers, farm
                    organizations, and academia to define
                    and offer practical solutions to pesti-
                    cide users' treatment and disposal prob-
                    lems. The technical program included
                    presentations by government research-
                    ers and regulators, academia, industry
                    experts, and individuals Involved in pes-
                    ticide disposal and treatment.
                      The workshop was sponsored by the
                    following organizations:
                      U.S. Environmental Protection
                      Office of Research and Development
                      Risk Reduction Engineering Labora-
                      Cincinnati, Ohio 45268
                      Tennessee Valley Authority
                      National Fertilizer and Environmen-
                       tal Research Center
                      Muscle Shoals, Alabama 35660
                      This  Project Summary was devel-
                    oped by EPA's Risk Reduction Engi-
                    neering  Laboratory,  Cincinnati, OH, to
                    announce key findings of the research
                    project that is  fully documented In a
                    separate proceedings of the same title
                    (see Project Report ordering Informa-
                    tion at back).
                      Aside from the technical presentations,
                    the workshop allowed for some discussion
                    among the participants. Several  issues/
 concerns were discussed by the attend-
 ees. The two  issues which  caused the
 greatest concern were site remediation and
 regulatory framework.
    Discussions on site remediation were
 directed toward dealer sites. The focuses
 on the cleanup were both soils and ground-
 water contamination. The largest problems
 identified with  dealer site  cleanup were
 costs and issues of how clean is clean
 enough. It was noted that many dealers
 could go bankrupt if costs were high. Also,
 little remediation is being conducted be-
 cause dealers feel that regulators cannot
 give them cleanup levels that will hold true
 in the future.
    Regulatory framework is also of great
 concern. Discussion ensued regarding how
 to solve this problem. Suggestions included
 the following:
  1)  Prove technology first,  then worry
     about the regulatory framework.
  2)  Regulatory framework needs to be
     looked at while technology is being
     developed—it can and  does drive
  3)  Policy people are not listening to re-
     search people.
  4)  Get the key players involved. Target
     state regulators since they are clos-
     est to the problem. Get the concerns
     and scientific information to the perti-
     nent regulatory people.
   Another topic of discussion was waste
 minimization and education. It was agreed
 that many pollution prevention ideas would
 significantly decrease the number of future
 problems involving pesticides. These waste
 minimization  techniques were generally
 low-cost practical  solutions to managing

         ^g> Printed on Recycled Paper

pesticides and pesticide wastes. It is im-
portant that these ideas become common
practices through education of appropriate
users and dealers of pesticides.
   The full report includes the following
   Tennessee Valley Authority National
   Fertilizer and Environmental Re-
   search Center—An Overview
   by Joe Gautney
   Tracking Small Quantities of Can-
   celled or Excess Pesticides Contain-
   ing Dfoxins and Furans
   by J. Paul E. des Rosiers
   Research and Development Needs
   for Agrichemical Retail Dealership
   Site Assessment and Remediation
   by Chris Myrick
   An Evaporation/Degradation System
   for Pesticide Equipment Rinse Water
   by Steven E. Dwinell
   Pesticide Disposal Using a
   Demulsification, Sorption, Filtration
   and Chemical and Biological Degra-
   dation Strategy
   by D.E. Mullins, R.W. Young.
   G.H. Hetzel, and D.F. Berry
Landfarming and Biostimulation for
Decontaminating Herbicide Wastes in
by Kudjo Dzantor and A.S. Felsot
Removal of Pesticides From Aqueous
Solutions Using Liquid Membrane
by Dr. Verrill M. Norwood, III
Field and Laboratory Evaluations of
an Activated Charcoal Filtration Unit
by J.H. Massey, T.L Lavy, and
B.W. Skulman
Preliminary Studies of Batch Chemi-
cal Oxidation of Wastewaters Con-
taining Agrichemicals
by C.E. Breed and M.C. Crim
Extraction of Pesticides from Con-
taminated Soil Using Supercritical
Carbon Dioxide
by G.B. Hunter
Modular Concrete Pads for Pesticide
and Liquid Fertilizer Handling,
Storage and Containment
by Ronald T. Noyes
   Waste Minimization for Non-Agricul-
   tural Pesticide Applicators: EPA's
   Pollution Prevention Guide
   by Teresa M. Harten
   Pesticide Container Management in
   the United States
   by Nancy Fitz
   Pesticide Disposal in Guinea-Bissau:
   A Case  History
   by Janice Jansen
   Downstream Injection Equipment for
   Sprayers and Fertilizer Spreaders
   by A.W. Mclaughlin, S.A. Weeks, and
   O.L. Vanderslice
   Evolution of the Pesticide Container
   Disposal Program in Alberta
   by C.G. Van Teeling and W. Inkpen
   Retail Fertilizer Dealer Product
   by M.F.  Broder
   The full  proceedings was submitted in
fulfillment of Contract No. 68-C8-0061  by
Science Applications International Corpo-
ration (SAIC) under the sponsorship of the
U.S. Environmental Protection Agency.
  T. David Ferguson is the EPA Project Officer, (see below).
 The complete report, entitled "Proceedings of International Workshop on Research in
   Pesticide Treatment/Disposal/Waste Minimization* (Order No. PB92-119940/AS;
   Cost: $35.00, 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:
         Risk Reduction Engineering Laboratory
         U.S. Environmental Protection Agency
         Cincinnati, OH 45268
  United States
  Environmental Protection
     Center for Environmental Research
     Cincinnati, OH 45268
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