United States
Environmental Protection
Agency
Office of
Research and Development
Washington DC 20460
EPA/600/N-93/005
March 1993
Vol. 10
oEPA
ORD ENGINEERING
HIGHLIGHTS
A bimonthly compilation of EPA's Office of Research and Development engineering research activities and
results and related research activities in pollution prevention and mitigation. To discuss any of these
activities, contact the ORD lead person listed below. For general information, contact Charlotte Bercegeay
of the Office of Environmental Engineering and Technology Demonstration, Phone: 919-541-2482.
WStPG
AIR
• Emergency Assistance to Thailand
, ftedocfton T«chndog4e&
INDOOR AIR QUAUTY
* Evaluation of HVAC Systems
* Crawt Space Radon Mitigation
BIOREMEWATIOM
• Btoventmg 0* PAHs in Soil
* Btoremedlation of Wood Preservatives Contaminated Soft
SITI REMEDIATION
« Pneumatic Fracturing and Hot Gas Injection Technologies
HAZARDOUS WASTE
* Mirsrflizatipn of Impact of emergency
Safety Vent Openings
POtUJTIQN PREVgNUOR
* Evaluation of Nonpcocess Solvent Uses
« Waste MSrtimizatfoft Assessment
WATER
* Granulated Activated Carfcor* Water Treatment
TECHNOLOGY TRANSFER
* Stationary Combustion NO, Control Symposium
« Life-Cycle Analysis Guidance Manual .................
» Indoor Air Source Catalog
REGIONAL OR STATE ASSISTANCE
* Support of Texas Water Commission Testing
« PlJat-SeaTe Treatability Tests for a New Jersey Hazardous
Waste Site
^^
AIR
Assistance to Thailand for Air
Pollution Emergency
The Thai Embassy requested urgent technical assistance
from EPA for an air pollution emergency in the Town of
SobPad and its immediate vicinity in Lampang Province,
Northern Thailand. The emergency was caused by 11
power plants that were burning lignite. The Air and
Energy Engineering Research Laboratory (AEERL)
provided air pollution control technology expertise, leading
a five-member Environmental Action Team to Thailand to
evaluate air pollution problems related to the Mae Moh
Power Plant in Lampang Province and recommend
alternative measures for addressing these problems. Other
experts on the mission included an epidemiologist from the
Health Effects Research Laboratory/ORD, two monitoring
specialists from the World Health Organization, and a
control technology specialist from DOE's Pittsburgh Energy
Technology Center. The 2-week mission began on January
10, 1993. Upon the team's return, two presentations on
their findings were given to the ASEAN Council and the
U.S. AEP principals. (Richard Stern, AEERL, 919-541-2973)
Cooperative Research and Development Agreement for
Research on NOX Technologies
Through the Federal Technology Transfer Act (FTTA), a
Cooperative Research and Development Agreement
(CRADA) was signed between AEERL and Nalco Fuel
Tech to investigate the combination of selective
noncatalytic reduction (SCNR) and selective catalytic
reduction (SNR) technologies for NOX research. AEERL
and Nalco Fuel Tech will cofund research at the AEERL
1
AIR
Printed on Recycled Paper
-------
ORD Engineering Highlights
Match
flue gas cleaning laboratory that investigates injection of
NOxOUT*, a urea-based solution, for in-furnace NOX
reduction in series with a down-sized catalyst reactor for
further in-duct NOX reduction. This combined NOX
reduction system would be applicable to both new and
retrofit boilers and could have a significant role in meeting
the standards of the Clean Air Act Amendments of 1990
(CAAA). The optimal combination of SNCR and SCR may
provide a less expensive option for NOX control than is
currently available. (Brian K. Gullett, AEERL, 919-541-
1534)
NO, Emissions Reduced for New Coal-Fired Boilers
The CAAA require NOX emission standards for many
existing utility boilers and revised emission performance
standards for new boilers. An EPA-sponsored demon-
stration of a low-NOx firing system at Virginia Power's 180
MWe Yorktown unit 2 will provide valuable data for
policymakers responsible for preparing and enforcing these
standards. NOX emissions from the tangentially coal-fired
boiler were reduced to 0.3 pounds per million Btu. This is
half the amount currently allowed for new tangentially
fired boilers. The "low-NOx concentric firing system"
(LNCFS-Level 2) was designed specifically for tangentially
fired boilers, and the test showed that the technology
works. Additionally, the test identified design, operating,
and maintenance issues that utilities need to understand
before installation. The test lasted 1 month and consisted
of short-term runs at optimum firing conditions. A 42%
reduction in NOX emissions was achieved when the boiler
ran at full capacity, and a 34% reduction, when it ran at
intermediate capacity. The boiler rarely runs at less than
intermediate capacity. Continued operation of the boiler is
planned to fully assess the long-term performance of this
low-NOx system. (David G. Lachapelle, AEERL,
919-541-3444).
10 MWe ADVACATE Evaluation Completed
ABB-Flakt completed the initial evaluation of ADVACATE
sorbent used with the Moist Dust Injection concept at
TVA's Shawnee 10 MWe pilot plant. Although long-term
tests were not conducted due to equipment problems, 90%
SO2 removal was achieved at a Ca/S of 1.5 on a 2.7%
sulfur coal (1800 ppmv SO2) for a several-day period.
Based on this information, ABB-Flakt is negotiating with a
utility for a 130 MWe demonstration. TVA plans to
evaluate ADVACATE sorbent with several injection
concepts over the next 2 years for possible commercial use
in the TVA system, as well as supporting design of a 10
MWe equivalent system for a Department of Defense
facility under the Strategic Environmental Research and
Development Program (SERDP). Because the Shawnee
facility is hosting a Clean Coal Demonstration in FY 93,
SERDP and ABB-Flakfs demonstrations will depend
heavily on AEERL to operate the 0.7 MWe ADVACATE
pilot plant at Research Triangle Park for support. (Charles
B. Sedman, AEERL, 919-541-7700)
INDOOR AIR QUALITY
International Study on Indoor Air
Emissions
AEERL was one of 20 laboratories (6
from the United States and 14 from Europe) that
participated in a study to compare emissions from indoor
materials and products using small environmental test
chambers. The study was directed by the Commission of
the European Community's (CEC's) Joint Research Center
in Ispra, Italy; AEERL served as the U.S. coordinator. Test
protocols were based on methods developed at AEERL and
published by the American Society of Testing and
Materials. The study results will provide data on the
accuracy and precision of emission rates determined from
small chambers. Preliminary evaluation of the study data
indicates that interlaboratory variability is modest for a
slowly decaying source (e.g., floor tile). Data for a rapidly
decaying source (e.g., wax) show much greater variability
between laboratories. The study results are expected to
provide valuable insight into small chamber testing and
yield recommendations for improving the testing protocols.
Final study results are to be presented jointly by the CEC
and EPA at the INDOOR AIR '93 conference in Helsinki,
Finland, in July 1993. (Bruce Tichenor, AEERL,
919-541-2991).
Cooperative Research Agreement To Study HVAC
System
AEERL recently entered into a cooperative research
agreement with the American Society of Heating,
Refrigerating, Air-Conditioning Engineers, Inc. (ASHRAE)
to evaluate the location, magnitude, and significance of the
types of pollution sources in heating, ventilating, and air-
INQOOR AIR QUALITY
-------
March 1993
ORD Engineering Highlights
conditioning (HVAC) systems. Recent studies have shown
that HVAC systems are among the primary sources of
indoor air pollution, and the components may constitute
major contributors to the "sick building syndrome."
Research will be conducted to identify and quantify
pollutants emitted by HVAC systems into occupied spaces
and to identify how design, operation, and maintenance
may affect emissions of the pollutants. AEERL will
characterize the indoor environment of a multistoried,
multiuse building by providing engineering analysis and
HVAC system monitoring. AEERL has already completed
basic HVAC system characterization and will be installing
newly developed data-logging equipment that will provide
system and space monitoring parameters. (Russell Kulp,
AEERL, 919-541-7980)
Test Method for In-duct Air Cleaners
AEERL has developed a method for determining the
efficiency of in-duct particle air cleaners as a function of
particle diameter. The method is based on the use of a
polydispersed artificial aerosol of potassium chloride
combined with measurement of upstream and downstream
particle size distribution and particle concentration. Used
to evaluate the performance of numerous commercially
available air cleaners designed for home and small
commercial applications, the method is being extended to
cover systems designed for large commercial applications.
The test method is being evaluated by ASHRAE as a
possible replacement for current standard methods of
evaluating particulate air cleaners. Research is also under
way to extend the method to evaluation of in-room air
cleaners. (L. E. Sparks, AEERL, 919-541-2458)
Preventing Radon Entry Into Crawl Space Houses
AEERL completed an analysis of available data on the full
range of alternative techniques for preventing radon entry
into crawl space houses, to develop improved mitigation
techniques. Extensive review of the database was
combined with an analysis of the flow dynamics in crawl
space houses and the mechanisms by which the techniques
appear to operate. The analysis also included rigorous
estimates of the installation and operating costs of the
various techniques. This evaluation confirmed obser-
vations that submembrane depressurization (SMD) is likely
to provide the greatest radon reductions in the living area
in houses where this technique can be applied. Crawl
space depressurization is the second most effective but is
less reliable and appears to be less widely applicable than
SMD. Crawl space pressurization appears applicable only
in isolated cases. Natural ventilation of the crawl space
gives only moderate reductions (<50%) in living areas, and
sealing the floor between the crawl space and the living
area gives essentially no reduction. Sealed barriers over
the crawl space floor also give limited reductions.
Although SMD has the highest installation cost, it has one
of the lowest annual operating costs and appears to be the
most cost-effective approach for many (but not all) cases.
A detailed paper describing this analysis was accepted for
publication in a peer-reviewed journal, Indoor Air. (Bruce
Henschel, AEERL, 919-541^1111)
BIOREMEDIATION
Field Initiative to Biovent
Polyaromatlc Hydrocarbons at
Reilly Tar Site
In November 1992, the Risk Reduction Engineering
Laboratory (RREL) SITE Demonstration Program initiated
a pilot-scale bioventing field demonstration for
polyaromatic hydrocarbon (PAH) bioremediation at the
Reilly Site in St. Louis Park, MN. Bioventing is a biological
treatment process that uses low-rate atmospheric air
injection to treat contaminated unsaturated soil in situ.
The air flow provides a continuous oxygen source that
enhances the growth of aerobic microorganisms naturally
present in soil. Low-rate, low-pressure air injection allows
the soil to be oxygenated with minimal volatilization to the
atmosphere of volatile organic compounds that may be
present in the soil. This demonstration will be the first
attempt to bioremediate larger molecular weight
hydrocarbons by bioventing. Because of the strong
partitioning of PAHs to soil, their availability and
consequently the rate of degradation are expected to be
low. The target removal rate over the 3-year period is 27%
as demonstrated by soil core analysis. Successfully
achieving this removal rate would project total cleanup to
a period of 10 to 15 years. Because of existing land use of
the site by the community and cost considerations, Region
V has indicated that a cleanup period in this range would
be more desirable than any short-term remediation
procedures requiring excavation and above-ground
treatment of contaminated soil. (Paul T. McCauley, RREL,
513-569-7444)
-------
OftD Engineering Htghtights
March 1993
EPA To Evaluate Bioremediation of Soil Contaminated
with Creosote
Final details are being negotiated for a CRADA under the
provisions of the FTTA, between the James Graham Brown
Foundation, Louisville, KY; RREL; and the U. S.
Department of Agriculture's Forest Products Laboratory
(FPL). A two-phase research project is being planned to
evaluate bioremediation of soil contaminated with creosote
compounds and pentachlorophenol (PCP) found in wood-
preserving wastes. The first phase will consist of
treatability studies comparing inoculated fungal and
indigenous organism (bacterial) treatment using bench-
scale pans. The Brown Foundation will contribute $142,000
toward this phase of the work, which will be conducted
primarily under the supervision of RREL researchers. If
the results of the Phase I studies indicate fungal treatment
is more efficient in biodegrading creosote compounds than
are indigenous organisms, a Phase II field study will be
initiated in the summer of 1993 at a wood-treating site
owned by the Brown Foundation in Louisville. FPL will
assume the lead role in the second-phase work with
technical assistance from RREL and the Brown Foundation.
The Brown Foundation will fund out-of-pocket costs of this
phase up to $400,000, plus contribute in-kind services.
RREL and FPL have been cooperatively researching fungal
biodegradation of creosote compounds and PCP for the
past 4 years. The Brown Foundation and its consultant,
Remediation Technologies, Inc., Seattle, WA, have
employed indigenous microorganism treatment to clean up
two other wood-preserving sites for which the Foundation
was responsible. The CRADA being developed for this
project is a first-time effort to comprehensively compare
these two land treatment approaches for remediating and
detoxifying soil contaminated with wood-preserving
chemicals. (Richard C. Brenner, RREL, 513-569-7657)
SITE REMEDIATION
SITE Demo on Pneumatic
Fracturing Extraction and Hot Gas
Injection
A Phase I SITE Demonstration was performed on a
pneumatic fracturing extraction (PFE) and hot gas injection
(HGI) technology system developed to increase the number
of fractures in subsurface soil and rock formations where
conventional in situ soil vapor extraction is limited due to
low permeability geologic strata. The process was
successfully demonstrated on a shale formation containing
trichloroethylene (TCE) at the Derelco Business Center in
Somerville, NJ. Preliminary data indicate orders of
magnitude increases in permeability and subsequent
similar increases in contaminant removal rates. Phase II,
involving the evaluation of an integrated system including
catalytic oxidation of extracted contaminant vapors, is
currently planned for evaluation during 1993. (Uwe Frank,
RREL, 908-321-6626)
HAZARDOUS WASTE
Emergency Safety Vent Tests
Completed
AEERL has completed a series of
bench-scale parametric tests examining operational
parameters that can be used to minimize the impact of
emergency safety vent (ESV) openings. ESV's are safety
devices supplied on rotary kiln incinerator systems that
directly vent the incinerator emissions to the ambient air in
the event of a significant system failure, such as a power
outage, failure of the induced draft fan, or an over pressure
from the primary combustion chamber. In the event of an
ESV opening, all waste being fed into the incinerator is
immediately cut off; any materials remaining behind in the
system will continue to burn out for a period of time.
EPA's Office of Solid Waste funded a study to examine the
parameters (such as kiln rotational speed or air in-leakage)
that incinerator operators can control in order to minimize
worker exposure to incinerator off gases, including acid
gases and organics. Metals were not included in the scope
of these tests. Species that were monitored included O&
CO, COz, NO, hydrocarbons, soot, and HC1. Several grab
samples were taken and analyzed for organic products of
incomplete combustion (PICs). Tests were also performed
to examine the effect of adding a flare in the ESV.
Preliminary results indicate that the addition of a flare is
extremely effective in minimizing organic compounds
released into the atmosphere in the event of an ESV
opening. A statistical analysis of the other parameters is
under way. The draft final report will be completed in
April 1993. (Paul Lemieux, AEERL, 919-541-0962)
SITE 8EMEDIATI0N/HA2AfiDQU$ WA$m
-------
March 1993
Metal Aerosol Transformations and Control In
Incineration Systems
Many toxic metals identified by Resource Conservation
(RCRA) and CAA regulations, and associated with waste
streams, readily vaporize at incineration temperatures and
form small particles that are most difficult to collect in
conventional particulate control systems. AEERL in-house
and extramural-sponsored research examined metal
transformations in laboratory scale combustors in order to
explain this behavior and develop new control techniques.
These studies have yielded insight into the mechanisms of
metal aerosol evolution. Preliminary results also suggest
that common naturally occurring inorganic materials can
be used as in-duct sorbents to capture volatile toxic metals.
One set of tests that injected kaolinite into a combustion
system doped with lead resulted in an approximate 99%
reduction in the submicron lead mass concentration. These
results are significant in that they suggest that sorbent
injection can be used to capture toxic metals much as it is
currently used to capture acid gases. (William P. Linak,
AEERL, 919-541-5792).
POLLUTION
PREVENTION
Innovative Clean Technologies
Program Recipient Wins R&D 100
Award
RREL's Innovative Clean Technologies Program, managed
in conjunction with the Office of Small and Disadvantaged
Business Utilization, awarded a $25,000 grant to Earth Safe
Industries, Inc., to promote pollution prevention among
small businesses. Earth Safe Industries received the award
for development of NoTox, a nontoxic chemical substitute
for formaldehyde in the biological sciences and medical
field. NoTox has been tested as a histological fixative and
is being validated as an embalming fluid. In addition to its
antimicrobial capabilities, its performance characteristics
appear to be superior to formaldehyde, with anatomical
specimens having a more pliable texture amenable to the
separation of layers of tissue and muscle fiber for
anatomical study. Occupational exposure to formaldehyde
and phenol fumes is eliminated. (Contact: Kenneth Stone,
RREL, 513-569-7474)
Sources of Key Nonprocess Solvents Targeted for
Pollution Prevention
A preliminary evaluation of nonprocess solvent use for 15
source categories was completed in support of the
Consumer/Commercial Products Report to Congress. This
report was mandated for completion during November
1993 by Title I of the CAAA. The definition of consumer
and commercial products contained in the CAAA includes
traditional consumer products as well as nontraditional
ones such as paints, coatings, and solvents, used in
commercial and industrial facilities. Nontraditional
consumer/commercial product emissions were estimated
for selected industrial and commercial operations such as
textile manufacturing, machine shops, furniture repair and
restoration, roofing, and "quick print" facilities. These
estimates were provided to EPA's Office of Air Quality
Planning and Standards (OAQPS) and will have an impact
on the first internal review draft of the report expected in
March 1993. During future phases of this project, several
source categories will be analyzed in greater detail to
produce better estimates of the types, locations, and
volumes of nonprocess solvent emissions and to identify
and demonstrate pollution prevention opportunities to
reduce these emissions. (Michael Kosusko, AEERL, 919-
541-2734)
Organic Material Recycling by Pulp and Paper Industry
As outlined by the Environmental Defense Fund and the
National Wildlife Foundation settlement agreement, the
EPA is investigating process changes and pollution
prevention strategies for the pulp and paper industry. A
sampling effort was completed in October 1992, at
Alabama Pine Pulp, Clairborne, AL. The EPA sampled this
plant's pulping, bleaching, and wastewater treatment
technologies. The technologies evaluated at this point
included the Kamyr or extended cooking process, which
removes lignin from pulp prior to bleaching. This
increases the quantity of organic material recycled and
burned in the recovery boiler for energy recovery rather
than being removed in the bleach plant as in the
conventional process. The extended cooking process also
decreases the amount of bleaching chemicals required,
thereby reducing the likelihood of forming and discharging
chlorinated organics. The key analytes of concern are
volatile organics, chlorinated dioxins and furans,
chlorinated phenolics, adsorbable organic halogens, organic
halides, chemical and biological oxygen demand, total
POLLUTION PREVENTION
-------
ORD Engineering Highlights
March 1393
suspended solids, and color. Samples collected are
currently being analyzed; a draft report of the test was
completed in December 1992. (Thomas J. Holdsworth,
RREL, 513-569-7675)
Waste Minimization Assessment Series with New
Jersey Completed
Under a cooperative agreement between RREL and the
New Jersey Department of Environmental Protection and
Energy, the New Jersey Institute of Technology completed
30 research briefs on pollution prevention options
identified at various industrial facilities within the State of
New Jersey. The facilities cover nine industries including
paint manufacturing, motor vehicle maintenance, printing,
plastics, metals, refrigeration, air conditioning equipment,
electrical utility, and chemical formulations. These
research briefs are available for distribution from the ORD
Publications Unit, Cincinnati, Ohio, 513-569-7562. (Mary
Ann Curran, RREL, 513-569-7837)
WATER
World's Largest Advanced Water
Treatment Facility Dedicated
This sytem evolved from a pilot study
starting in 1977 between the City of Cincinnati and EPA
with a $3 million research grant. RREL has played a major
role in conducting and supporting research since that time.
The granular activated carbon (GAC) system will entrap
and adsorb chemical contaminants. After 15 to 20 minutes
of contact with the carbon particles, the water can be
chlorinated at a much lower dosage than in traditional
plants and then distributed into the system. The new
system will provide protection against spills in the Ohio
River and remove raw water contaminants which interact
with chlorine to form potentially carcinogenic by-products.
The GAC will cost consumers an additional $.06/1000 gal
for treated water (drinking water in Cincinnati currently
costs $.33/1000 gal). It should, however, provide insurance
that Cincinnati will meet not only the current drinking
water standards but also any foreseeable standards past the
year 2000. (Robert Clark, RREL, 513-569-7201)
TECHNOLOGY
TRANSFER
Stationary Combustion NO, Control
Symposium
The 1993 Joint Symposium on Stationary Combustion NOX
Control, cosponsored by AEERL and the Electric Power
Research Institute, will be held May 24-27 in Miami. The
strong response to the call for papers—69 papers and 7
poster presentations were selected out of 120 abstracts
submitted—indicates the high level of interest in NOX
control technologies for utilities as well as industrial
sources. Utility applications of both traditional
combustion modifications such as low-NOx burners and
postcombustion technologies such as selective catalytic
reduction will make up the majority of sessions. In
addition, the symposium will include sessions covering
fundamental advances in NOX formation and control, and
field test results of natural gas reburning, including the
joint EPA-Ukrainian-Russian reburning project now under
way in the Ukraine. (Charles A. Miller, AEERL, 919-
541-2920)
Life-Cycle Analysis Guidance Manual Available
RREL has completed work on a guidance manual that will
advance the understanding and application of life-cycle
assessment (LCA). LCA can be used as an objective
technical tool to evaluate the environmental consequences
of a product, production process, package, or activity
holistically from cradle to grave. The document provides
scientifically oriented, consensus-based guidelines on the
conduct of the inventory component of LCA. It includes
a brief discussion on the history of LCAs, the basics of
LCA methodology, the procedural framework for
conducting life-cycle inventory, and descriptions of the life-
cycle stages. It will be of interest to a broad audience
including manufacturers, consumer interest groups, and
policymakers. Printed copies of the manual (EPA-600/R-
92-036) are expected to be available in February 1993.
(Mary Ann Curran, RREL, 513-569-7837)
WATErVTECHNOLOOV TRANS^lR
-------
March 1993
ORD Engineering Highlights
Determination of Nine Haloacetlc Acids In Finished
Drinking Water
A poster session was presented by RREL at the 1992
AWWA Water Quality Technology Conference, in Toronto,
Canada. Whenever natural organic matter is chlorinated,
significant concentrations of chlorinated haloacetic acids
(HAAs) are produced. When present in the water,
bromide ion shifts the distribution of HAAs to include
brominated species. Because HAAs in drinking water are
suspected of having an adverse health effect, analytical
techniques have been developed to detect and measure
them. A method that was originally developed by RREL
for the measurement of mono-, di-, and trichloracetic acid
was modified to include the six brominated HAAs. These
include mono-, di-, and tribromoacetic acid, and
dibromochloro-, and dichlorobromo-, and bromochloro-
acetic acid. These brominated acids are formed during the
disinfection of water with chlorine in the presence of
bromide ion. The method is currently available as
EPA/EMSL Method 552. (Ron Dressman, RREL, 513-
569-7202)
Video on Protective Clothing
An EPA videotape, "Shedding Some Light on Pesticide
Protection," is used to educate agricultural workers on the
proper use of protective clothing. Actual footage of
agricultural workers shows pesticide contamination on
workers and dramatically demonstrates the importance of
protective clothing. The video will be distributed to state
cooperative extension services and should motivate
workers to change their behavior in regard to improved
selection and use of personnel protective clothing and
equipment. (Carolyn R. Esposito, RREL, 908-906-6895)
Report on Revised Emissions Estimation
Methodologies
AEERL has published a report that presents the
development of improved and streamlined EPA emission
estimation methods for stationary combustion area sources
by the Joint Emissions Inventory Oversight Group research
program. These sources include categories traditionally
labeled "other stationary source combustion." Existing
methodologies are summarized (if any exist), and then
proposed algorithms are presented. Emission factors and
data sources required to implement the new methodologies
are introduced in each chapter. The program office is
expected to implement these improved methodologies in
their guidance for development of future emissions
inventories (EPA-600/R-92-239, Dec. 1992). (Sue
Kimbrough, AEERL, 919-541-2612)
Indoor Air Source Catalog
The "Catalog of Materials as Potential Sources of Indoor
Air Emissions. Volume I: Insulation, Wallcoverings,
Resilient Floor Coverings, Carpet, Adhesives, Sealants and
Caulks, and Pesticides" presents a classification system for
products found in the indoor environment. The catalog
provides the foundation for a systematic analysis of the
role of materials in influencing indoor air quality. These
products are organized on the basis of the Standard
Industrial Classification system and the Architect's
MasterSpec Code TM. Each section of the catalog presents
sales and usage data, qualitative data on product
composition, and quantitative and qualitative data on
emissions rates and emissions factors for volatile organic
compounds, based on currently available information. This
catalog is a valuable resource for researchers and architects
interested in developing emission testing plans,
experimental design parameters, test protocols, and for
presenting the data. It also presents a clear message that
many product categories are not well studied with respect
to their potential impact on indoor air quality. (James
White, AEERL, 919-541-1189)
Lead Recycling 1992 Directory
The Lead Industries Association, Inc., has published the
Lead Recycling 1992 Directory. This 8-page document
contains a 2-page matrix that identifies the forms of lead
scrap that are accepted by 35 U.S. and Canadian lead
recycling facilities. Included in the 29 forms of lead scrap
are lead paint removal debris (12 facilities); firing range
soils (11 facilities); lead slag (13 facilities); and lead-bearing
Superfund cleanup materials/wastes (7 facilities). For each
of the lead recycling facilities, an address, contact name,
and telephone number are provided. The Lead Recycling
1992 Directory is available from Lead Industries
Association, Inc., 295 Madison Avenue, New York, NY
10017; telephone 1-800-922-LEAD. (Mike Royer, RREL-
Edison, 908-321-6633)
TECHNOLOGY TRANSF£R
•U.S. Govermrum Printing Office: 1893— 750-071/80199
-------
ORD Engineering Highlights
March 1993
REGIONAL OR STATE
ASSISTANCE
Assistance to Texas Water
Commission
The Texas Water Commission's New Technologies Task
Force will evaluate a concept for heating and cooling that
utilizes the Texas public water systems. Three
demonstration installations will incorporate heat pumps
with underground pipes connected to municipal water
systems. Concerns were raised regarding the allowance of
potable water to flow through a heat exchanger and then
return to the mains. The commission intends to conduct
the testing for 3 months and has invited EPA to participate
in the evaluation. (Edwin Geldreich, RREL, 513-569-7232)
Pilot-Scale Treliability Test at New Jersey Site
The King of Prussia (KOP) site in southern New Jersey is
contaminated with sludge material high in chromium,
copper, and nickel. The Record of Decision specified
volume reduction and application of soil washing for this
site. The EPA assisted Region II in conducting a pilot-scale
treatability test. The demonstration was run at a fixed
facility in Moerdijk, The Netherlands. The 7-hour test used
160 tons of soil excavated in New Jersey and shipped to
The Netherlands. The test soil will be returned to the site.
Data collected in this test will support the remedial design.
(Michael Borst, RREL, 908-321-6631)
United States
Environmental Protection Agency
Center for Environmental Research Information
Cincinnati, OH 45268
Official Business
Penalty for Private Use
$300
EPA/600/N-93/005
BULK RATE
POSTAGE & FEES PAID
EPA
PERMIT No. G-35
ORD
HI
EPA,
RH-1IOS 5
CHICAGO,
cKS* 8T.VP
-1 L h
------- |