A report documenting background issues for this project will be available in December The high level of industry participation through the PSTC has allowed EPA to obtain a profile of the industry's plans to change from solvent-based systems. Hot melt and radiation- cured coatings and solvent recovery compete with the water-based alternatives.
Case studies will be completed during early Innovative Ink Feed Systems. This project is also part of the SRRP and is just underway. The systems e. Alternative feed systems could substantially reduce these emissions. The objective of this project is to develop the use of polymeric surfactants to stabilize the microstructure in, and influence the physical properties of, waterborne inks.
The focus will be on the enhancement of the performance of traditional inks, not the reformulation of inks. Specific research will include: 1 characterization of the microstructure of waterborne ink systems; 2 correlation of the microstructure with physical properties e. VOC and air toxic emission reductions will result from this project if it is successful. Demonstration 2. The objective of this project is to demonstrate P2 technology to reduce volatile organic emissions from automobile body refinishing operations. The demonstration will focus on technologies which can prevent emissions from small, dispersed, stationary area-sources.
The results of these tests will be made available to small companies that previously have not had access to control or prevention technologies. Work is expected to be underway during The objective of this project is to evaluate an ULV spray gun system.
Tests have been completed cooperatively with the U. Qualitative results of the test are promising.
An improvement of paint utilization efficiency was attributed to the enhanced paint laydown provided by the gun. The final project report is under review by the U. Air Force and has not yet been released. The objective of this project is to improve the competitiveness of small businesses by allowing them to coat their products more efficiently by using powder coatings whenever that is technically and economically feasible.
Paint in powder form is electrostatically charged and applied to oppositely charged metal or electrically conductive parts. Overspray is collected and reused.
There are more than one thousand different VOCs, but the most abundant in the air are methane, toluene, n butane, i-pentane, ethane, benzene, n-pentane, propane and ethylene. Comparison of information obtained with sensory analysis and electronic nose measurements concerning occurrence of odour interactions in two-, three-, four- and five-component mixtures. Creating statistics that help website owners to understand how their users interact with their website, which allows them to improve their structure and content. Technology Transfer 3. All rights reserved.
The powder coated parts are then cured with heat or UV radiation. The process eliminates VOC emissions and avoids generation of paint booth wastewater.
The powder coating expertise developed by the DoD will be applied to civilian applications to achieve this goal. Recirculating Spray Booth. This project is presented even though it is not P2 since it complements OCB's P2 projects in surface coating. Recirculation in paint spray booths has been recognized for many years as a means of reducing the volume of spray booth exhaust.
This allows the use of a smaller control device, hence reducing air pollution control costs i. Partitioning of the spray booth exhaust stream takes advantage of the VOC concentration gradient that exists vertically across the booth exit. VOCs stratify in the booth and their concentration is greatest closer to the floor.
By pulling the booth exhaust stream from the bottom portion of the booth and the recirculating stream from the top portion of the booth, the concentration of the exhaust stream can be enhanced, perhaps removing the same mass of pollutants in a smaller exhaust volume than is possible in a traditional recirculating booth. A demonstration of the stratified recirculation concept is planned for at the U. The demonstration will be completed cooperatively with the Marine Corps and Pennsylvania State University.
During the demonstration, an existing spray booth will be modified to use both recirculation and partitioning.
A movable plenum will be used to evaluate the optimum height for flow partitioning. An end- of-pipe control technology will be evaluated in conjunction with the spray booth demonstration. Spray booth exhaust will feed to a control device which uses UV light to destroy organic compounds absorbed on a catalytic substrate, scrubbing with ozonated water, and a final activated carbon polishing step.
Technology Transfer 2. This workshop was held July , to explore the potential for development and use of materials that would not need to be coated during manufacture or recoated during use. If such materials were to come into widespread use, VOC and air toxic emissions associated with surface preparation cleaning , coating, and paint stripping before recoating could be avoided.
Purchase Characterization and Control of Odours and VOC in the Process Industries, Volume 61 - 1st Edition. Print Book & E-Book. ISBN Characterization and Control of Odours and VOC in the Process Industries. Proceedings of the Second International Symposium on Characterization and.
The proceedings of this workshop are available7. The first conference was held in San Diego, California, May , , to provide a forum for exchanging technical information on innovative coating technology and to allow EPA to interact with industry, academia, and others interested in surface coating technology.
Conference proceedings will be available late in A second conference has been scheduled for early and will be held in the Raleigh-Durham, North Carolina, area. CAGE will summarize information on new and innovative coating technologies along with their potential applications. This system will be modeled after the Solvent Alternative Guide which is described in Section 3. CAGE will expand to handle new data as they become available. This project has been proposed for under the SRRP. Its objectives are similar to those of CAGE except that it will focus on alternative adhesives.
Scoping 3. The objective of this project is to assess the types and quantities of emissions from various cleaning and reconditioning processes at the Air Force Base and to identify the types and quantities of emissions and the potential benefit of P2 approaches.
A summary report for this effort will be available during mid Funding has been requested to demonstrate these approaches in Evaluation and Pollution Prevention Analysis at the U. Marine Corps Maintenance Depot. The objective of this project is to assess the types and quantities of emissions from various cleaning and reconditioning processes at the Maintenance Depot and to identify the types and quantities of emissions and the potential benefit of P2 approaches.
Funding is available to demonstrate these approaches. Technology Assessment and Development 3. The purpose of this project is to evaluate alternative degreaser designs in support of the regulation scheduled for promulgation during The impacted industries, types and quantities of emissions, and potential benefit of prevention approaches will be assessed. The final report of this project will be available in February This project will test alternative cleaners and cleaning equipment. It will develop a standardized scale for determining the level of cleanliness required for various applications.
A status report for this project will be available during late Evaluation of Alternative Dry Cleaning Techniques. The purpose of this project is to evaluate dry cleaning techniques which do not use toxic solvents. Work will be underway early in Demonstration 3. Coated and Laminated Paper Equipment Cleaning. The rationale for this project is similar to that for the "retrofit" project described earlier under in Section 2. However, the focus of this project is on the second largest source of MEK and toluene emissions in the industry, equipment cleaning.
The objectives of this project are to identify and evaluate improved methods for cleaning process equipment surfaces, recommend candidate demonstration projects, conduct demonstrations, and transfer technical findings to the small businesses in the industry. A report detailing emissions characterization and P2 opportunities will be available in December The demonstration report should be available early in The purpose of this project is to identify candidate industrial processes in which conventional cleaning solvents can be replaced by non-organic solvents or by solventless technology, to demonstrate the alternative techniques, and then to compare them to conventional cleaning.
Two reports detailing these demonstrations will be available in January and February A demonstration of the use of carbon dioxide C02 snow at an automotive parts manufacturer is scheduled for Spray Gun Cleaning. The purpose of this project is to compare emissions from two types of paint spray gun cleaning equipment e. The CTC provides technical support to local, state, and EPA Regional environmental personnel, small businesses, and international clients. Technology Transfer 3. SAGE is an information system which identifies low-pollution surface cleaning alternatives, given the substrate to be cleaned, the type of soil, and the degree of cleanliness desired.
For the intensity, our sense of smell behaves much like our perception of hot or cold substances. The signal strength is very strong at the beginning then there is adaptation and gradual decline in signal strength toe in a bath. In terms of odor quality, our sense of smell works similarly to taste: we can recognize, classify and assess the quality of an odor. One of the quality of olfactometry is that a lot of the odor perception complexity is tied in a reproducible quantified parameter: the odor concentration.
Published by Thierry Page at December 12, Categories Blog Olfactometry Odor Sampling. Odor metrology — Olfactometry vs chemical analysis Measurement of odor emissions — Olfactometry or chemical analysis? Similarities between the electronic nose and human odor perception. Invented OdoWatch and revolutionized odor monitoring state of the art.
Participated in projects in more than 20 countries. Related projects. Odotech Inc has been acquired by Envirosuite Limited Lire la suite. Odor Monitoring and Biogas Projects Lire la suite.