Posted by Thierry Page on Sat, Jan 21, 2012 @ 10:43 AM

|
Odotech invites you to join for the next GlobalSpec's Free Online educational sessions
|
Water Quality & Water Reclamation, January 25, 2012 see agenda
Attendees of this presentation will learn of the latest techniques for assessing odor problems, including a wireless sensor network that provides an odor map of an area to determine the impact of plant odors on the neighborhood. Attendees will also learn how to set up an odor management master plan to right size odor abatement equipment, reduce documentation, and establish odor management priorities.
Key Take-Aways:
- Learn how to right size odor abatement equipment and reduce documentation costs
- Understand how to set odor management priorities
- Learn how to save on investigations and government reporting
- Discover the benefits of an odor management master plan
Other interesting presentations:
12:00 PM - 12:30 PM EST (9:00 AM - 9:30 AM PST)
12:30 PM - 12:45 PM EST (9:30 AM - 9:45 AM PST)
GlobalSpec's FREE online event, Water Quality & Water Reclamation, gives you the opportunity to learn about the latest technologies and solutions from leading suppliers to the water and wastewater industry – all from the convenience of your desktop. Participate in educational sessions offering industry expertise on innovations and trends across key technology areas including resource management, treatment, supply, and distribution. It's your chance to find out what's driving change in today's water/wastewater industry and at same time, discover solutions that will help your facility reduce cost, improve customer service, and increase profitability.
Posted by Thierry Page on Sun, Jan 15, 2012 @ 02:45 PM
The USCC’s Annual Conference and Trade Show is the largest composting conference and exhibition for the composting, wood waste and organics recycling industry in North America.

From January 17 to 20, 2012, the US Composting Council will be hosting the 20th Annual National Composting Conference and Exposition. During this time the Renaissance Hotel in Austin will attract the largest group of composting and organics professionals in the country to participate in a comprehensive program of workshops, training courses and educational and technical sessions designed specifically to provide you with the information you need to solve your composting challenges.
Odotech will demonstrate Odor monitoring and Odor Management tools. For example, the Odowatch Continuous Odor Monitoring System will be feature with real eNose demonstation. Fully automated, it is unique of its kind.

OdoWatch employs a network of electronic noses that measure odor D/T in real-time and alerts you before the odors travel offsite. OdoWath is the key to switch to proactive management toward odors.
We have equiped more than 30 composting, waste management & anaerobic digestion plants with odor monitoring systems.

Come visit us and see our new dispersion modeling app for complex terrains.

Posted by Veronique Cadieux on Fri, Dec 23, 2011 @ 09:39 AM
Seasons Greetings to Everyone!



Posted by Veronique Cadieux on Wed, Dec 07, 2011 @ 08:16 AM
Although odor is not generally directly associated with toxic exposure problems, it may raise doubts and questions.
Odotech offers services to study the technological risks associated with atmospheric emissions. The analysis of technological risks determines potential hazards and establishes possible management/mitigation scenarios.
Technological and toxicological risk studies
To address this problem, Odotech conducts preliminary toxicological risk studies. The first stage consists of an inventory and the characterization of atmospheric sources of compounds that present a risk to human health. The results allow us to assess exposure and the resultant dose on the target population, to evaluate the potential long-term effects on health and to then quantify the risks to human health associated with the exposure.

Air Quality Studies
Odotech develops and performs ambient air quality studies, according to a scientific assessment process, in order to assess the impact of a project in terms of atmospheric emissions. The results define components that may be useful during project development, so that the regulatory requirements around a project may be satisfied.
Posted by Veronique Cadieux on Mon, Nov 21, 2011 @ 02:49 PM
Olfactory emissions are determined by sampling and analysis of the emissions of odorific sources. This involves sampling the gas emitted according to a recognized sampling protocol suitable for the type of source, followed by a determination of the odor intensity using olfactometric analysis.
Two types of sampling may be conducted:
-
For point or channelized sources, sampling is conducted using a lung or a pump and a glass or stainless steel rotameter.
-
For surface sources such as compost winrows or settling ponds, the odor samples are taken by means of the OdoFlux™ dynamic flow chamber. This permits us to quantify the gas emitted at the soil/air or water/air interface. This technique allows us to sample the gas actually emitted by a surface source without disturbing its natural surface flow.
Our laboratories are equipped with ODILE™ dynamic dilution olfactometers which allow objective quantification of odors.
The following services are available:
-
olfactometric analyses with a factor of dilution up to 2,000,000
-
odor concentration measurements as per Standards EN 13725, ASTM E679-04, CUM, Probit and Logarithmic regression
-
hedonic tone analyses
-
odor intensity analyses
-
juried perception thresholds
-
jury certification as per Standard EN 13725

In addition to odor concentration measurements, our laboratories can carry out odor intensity measurements, and investigations of odor synergies and hedonic tone.
With a significant number of juries certified in compliance with European Standard EN 13725 as well as juries that have received preliminary authentication based on ASTM Standard E679-04, we are ready to conduct your analyses in the shortest possible timeframe.
Posted by Veronique Cadieux on Mon, Oct 31, 2011 @ 09:42 AM
ODOR IMPACT STUDIES
Applications:
- Verification of facility compliance with current regulations
- Estimation of level of abatement required to eliminate odor problem
- Knowledge required to identify and choose the best reduction approach possible
Modeling atmospheric dispersion of odors allows us to forecast impacts and olfactory nuisance factors associated with the odor sources under study.

This impact is quantified using atmospheric dispersion models such as AERMOD, CALPUFF, and TROPOS; the choice of model depends on a variety of factors (type of source under study, site topography, required level of result precision, or type of atmospheric contaminant under study).
The classic atmospheric dispersion models for contaminants do not allow sufficient simulation of atmospheric dispersion of odor. For this reason, Odotech performs simulations of atmospheric dispersion of odors using mathematical models specific to odors.
Our odor impact studies are designed and carried out according to a scientific method similar to that of impact studies conducted to study air quality. Using techniques and tools specific to odor, the odor impact study provides the information needed to assess and examine the impact of a project with respect to odor emissions. Its purpose is to help satisfy current regulatory requirements.
Posted by Veronique Cadieux on Fri, Oct 28, 2011 @ 10:43 AM
1.Emission rates are extremely variable for some sources (a large number of distinct samples would be needed to have a clear picture of the variations), an e-Nose can:
-Provide a tool to track fluctuations and trends;
-Allow for immediate reaction and pro-active actions;
-Improve understanding;
-Focused efforts towards the real issues… reduced odour management costs.
Tracking Real-time Odours

2. Real time modelling will present the current situation:
-Which periods and conditions are putting the facility at risk;
-Enables activity planning (i.e. first phase windrow turning, screening…);
-Ensure odour events are minimized ;
-Allows for production increases in optimal periods.
3.System can be programmed with alert points:
-Monitoring of odour concentration at a nose/source or modelled off site odours at specific points;
-Operator is actively informed (alert);
-Neutralizers could be activated, additional aeration (or closure of a fan), startup of a treatment system, etc.;
-Leads to reduced operational cost and rapid response.
Testimonial
“Allowed us to rank odour sources and to set up corrective actions”
“Good correlation between the complaints and the system’s data”
“The real time plume allows for visualisation of our odour impact at all times, more useful and relevant than met tower info”
“My monthly survey can be correlated with the Odowatch information”
“Odour events are avoided by planning around unfavourable conditions”
Posted by Veronique Cadieux on Fri, Oct 21, 2011 @ 10:06 AM
You would like to respond objectively to odor concerns?
In our last blog, we have shown you how to respond objectively to odor concerns using audits, odor diagnosis, impact study and odor observer committee.
Odor issues are never the same from one industry to the next, but depend upon sectoral functions and varying priorities there is always a way to monitor odor emissions.
OdoScan let you monitor the impact of odor emissions of your industrial site or facility in real time! OdoScan is easy to implement, reliable, incorporating the EPA Aermod dispersion model, it is a site operator’s dream come true.

If you have ever had an odor assessment done, you know the budget it represents. And how many weeks or months it can take for you to get the results. OdoScan gives you the equivalent results in 4 or 5 minutes. And more accurately, too, because OdoScan has its own weather station, as opposed to an assessment working with 5-year area weather averages. Operating 24/7, OdoScan delivers the visuals and data of at least 288 odor assessments each day!
Since odor issues are never the same from an industry to another, you might be in need of a continuous odor monitoring system using eNoses.

OdoWatch, offers 24/7 odor measurement with eNoses, realtime odor plume dispersion modeling & automatic odor alerts. OdoWatch allows you to:
-
Right-size odor abatement equipment
-
Set odor management priorities
-
Reduce odor neutralizer volume
-
Save on investigations and government reporting
-
Facilitate community relations
-
Ensure site Certificate of Approval & Permit compliance
-
Reduce documentation cost
-
Eliminate current onsite sampling & measurement campaigns
-
Prove good corporate citizenship
-
Shield yourself against false claims & accusations
-
Optimize CAPEX
-
Save on OPEX – time, energy & chemicals
Posted by Veronique Cadieux on Mon, Oct 17, 2011 @ 01:09 PM
You would like to respond objectively to odor complaints? Here is how to do it!
Several solutions are available to you, but the first stage must be a preliminary audit conducted by an engineer/odor expert. The object of the audit is to validate the parameters associated with regulatory documents, complaints or issues at stake. During the course of this audit, the following parameters will be identified, quantified and analyzed:
-
Fugitive/channeled emissions
-
Waste parameters such as stack height, emission rates, diameter, flow rates, etc.
-
Mapping complaints
-
Number and frequency of complaints

Our odor experts will develop an odor diagnosis on the basis of these parameters (sampling odors directly at the source, followed by olfactory measurement in the laboratory) and an impact study that will provide you with a clear, accurate image of the odor impact of your activity.
If you wish to pursue this further, within the framework of an odor nuisance management plan, our teams can establish an Odor Observer Committee. The participation of the residents in characterizing the odors around the site will create greater involvement of the community in the main aspects of the project and improve understanding and quantification of the odor issue. This also supports the emergence of constructive and cooperative dialogue between site managers and neighbors.
Posted by Thierry Page on Fri, Oct 14, 2011 @ 08:53 PM
If you want to know more about how to:
Manage and prevent odor complaints
- Positively impact community relationships
Accurately diagnose and treat causes of odor - quickly
- Saving plants money on labor and associated investigating costs
Prioritize odor control projects
- Provides precise data to justify capital projects
Right-size plant & equipment
- Decreasing plant investment costs
Provides historical data to make investigations easier
- Acts as self-defense tool where competing odors are an issue
$$$ Savings
- Optimize chemical use
- Operate equipment efficiently
- Pinpoint where capital will pay off

Come and join us at Booth 2525 South Hall during the 2011 WEFTEC edition this coming week!

Odotech will partner with Kruger at WEFTEC 2011 edition . Come and see the latest version of OdoWatch with the new added functions and lessons learned from existing users. Also on display, our new H2S monitor, OdoSulf, which has the lowest detection threshold on the market for hydrogen sulfide monitoring. We will illustrate their effectiveness by presenting actual case studies.
WEFTEC, the Water Environment Federation’s Annual Technical Exhibition and Conference, is the largest conference of its kind in North America and offers water quality professionals from around the world with the best water quality education and training available today. Also recognized as the largest annual water quality exhibition in the world, the expansive show floor provides unparalleled access to the most cutting-edge technologies in the field, serves as a forum for domestic and international business opportunities, and promotes invaluable peer-to-peer networking between its more than 20,000 attendees.
