September 29 – October 3, 2012 | New Orleans Morial Convention Center | New Orleans, LA USA.
WEFTEC 2012 is the 85th Annual Water Environment Federation
Technical Exhibition and Conference. WEFTEC’s massive show floor provides access to the field’s most cutting-edge technologies and services.
It also has a rich a cutting-edge technical sessions and workshops address topics including collection systems; membrane technologies; plant operations, treatment, and management; regulations and research; residuals and biosolids; water recycling, and more.
Make sure to add OdoWatch on your exhibition itinerary at Booth 2819. This year Kruger USA developed a unique display to show interesting new features of this unique electronic nose technology. With over 80 odor monitoring installations made over the last years, we have a lot of interesting case studies to share with you. Come learn how you can drastically save on odor control using OdoWatch.
What are e-noses? E-noses are a type of device designed to mimic the human nose and electronically detect odors.
Each e-nose will be calibrated to track the specific odor profile for each facility or source selected for odor monitoring. OdoWatch® provides 24/7 odor measurement with eNoses, realtime odor plume dispersion modeling & automatic odor alerts. It enables plant operators to see and track the odors for proactive odor management – Save on OPEX (time, energy & chemicals) – Optimize CAPEX – Show proactivity.
Read the last white paper on WWTP Odor Control Chemical Optimization using Electronic Nose
IFAT ENTSORGA is taking place May 7-12 in Munich, Germany at the Munich Trade Fair Centre. IFAT is the world’s premier trade show for innovations and services in water, sewage, waste and raw materials management. Odor in wastewater treatment plants is one of the many topics that will be covered and where Odotech will be displaying its odor monitoring and tacking solution – OdoWatch.
Visit Booth A4 – 304, where Odotech will be located. There will be a working electronic nose on display as well as a real-time web based display of waste water treatment plant’s odor monitoring data. The solution connects to a weather station to display an odor plume, so the operator can “see” the odor and it is linked to alert points. Odotech General Manager for Europe – Stuart Lee, International Sales Manager – Marvin Garellek and CEO – Thierry Page will be there to answer questions about OdoWatch, and why municipalities rely on OdoWatch every day for proactive odor management.
See. Track. Control Odor. Booth A4 – 304. www.odotech.com
The Florida Water Resources Conference is planned for April 29 through May 4 in Orlando, Florida at the Renaissance SeaWorld Resort. There will be a two-day technical program covering topics in wastewater, collection systems, regulatory issues and potable systems, to name but a few. Odor in wastewater treatment plants is one of the many topics that will be presented.
Visit Booth #804 - 807, where Kruger (a Veolia Water company) will be located at MTS Environmental booths. MTS, as a representative for Kruger, provides the OdoWatch technology to municipal wastewater treatment plants in Florida. Kruger will have on display a functional model of the OdoWatch eNose. Kruger Product Manager Sharon Paterson will be there to answer your questions about OdoWatch, and why several U.S. municipalities rely on it every day for proactive odor management.
Florida Water Resources Conference, Inc. ("FWRC") is a non-profit 501(c)3 organization, which provides an annual educational and technical, multi-day conference servicing individuals in the water and wastewater industry. FWRC is a joint conference of the Florida Section of the American Water Works Association, the Florida Water Environment Association, and the Florida Water and Pollution Control Operators Association.
The first permanent US installation of a unique technology that can actually “smell” an odor problem before it occurs has been on line in Tucson, Arizona, since 2009.
The Roger Road Wastewater Reclamation Facility (RRWRF) –TucsonAZ-is an older 41-MGD secondary wastewater treatment facility. Last upgraded and expanded in 1985, the Roger Road WRF was well known for having odor emission problems. Pima County Regional Wastewater reclamation Department completed in 2007 over 7-million dollars worth of odor control improvements at the facility. The facility is located along the banks of the Santa CruzRiverwash, at the base of theTucson Mountainsand adjacent to the I-10 Freeway.
This plant has odor emission sources:
As mentionned by Mr. Dennis Froehlich MS PE, System Wide Odor Control, Engineering Manager,Pima County, during his last presentation at the WEF 2012 Odors & Air Pollutants conference (The Relative Benefits of Dynamic vs Steady-State Continuous Odor Emissions Dispersion Monitoring for Multiple Sources) ''All of these sources have in common one characteristic: significant intermittent (read: dynamic) emissions driven by diurnal fluctuations in the plant processes and local meteorological conditions. So first they have to be identified and then quantified before they can be constructively addressed with a control plan. This meant continuous emissions monitoring.''
In January 2009, the OdoWatch Odor Continuous Monitoring System was installed for source emissions and controls monitoring to provide operators a consistent means of odor event awareness, process issue identification, and receptor impact estimation.
This system continuous emission monitoring system, the Odowatch System, employs a network of electronic noses monitoring odor and a local 10-meter tower with a meteorological station transmitting continuous emissions and met data via radio to a signal transceiver and router sending the data to a central modeling server. This server uses the data to update a locally calibrated Aermod dispersion model and serve the data in realtime to a windowing webpage presenting all of the data, plume map, alerts, and configuration data in four windows. This system also provides user configurable sampling locations where odor data at a given location are estimated from them model and saved.
OdoWatch®, operational at the Roger Road Wastewater Reclamation Facility, where six e-noses (electronic noses) calibrated to smell odors like the human nose are installed at the facility. The unit performs real-time air dispersion modelling to generate a colour-coded plume indicating the level of odour on a map of the site.
The odor monitoring system is capable monitoring facility’s compliance performance in terms of odor concentrations for nuisance threshold at fenceline, assumed as 7 D/T.
The odor is quantified by the system, and if the level begins to approach the threshold that can be perceived as a nuisance by a human nose, an alert notifies operators that actions must be taken to mitigate the situation. OdoWatch® can also be used to determine which source at a facility is causing the alert.
Mr. Froehlich reported that ''...this system is clearly state of the art... As a result of the monitoring, between 2009 and 2011, the low-pressure digester gas system was rebuilt, a flare shroud was designed and installed to shield the laminar flame from winds, and a chemical feed system was improved for chemical sulfide control in the primary clarifiers.''
Odors and Air Pollutants 2012
This year’s Odors and Air Pollutants Conference will bring together environmental professionals from the technical and regulated communities to discuss state-of-the-art techniques for the assessment and control of odors and air pollutants while promoting the use and acceptance of effective innovative technologies. The conference will cater to the following technical session topics:
|Methods of Sampling, Measuring, and Estimating Emissions
||Odor and emission Control Systems
|Odor Control Planning and Monitoring
||Biological Odor Control
|Fate and Odor Modeling
|Collection System Odors and Corrosion
||Design of Odor Control Systems
|Emission from Biosolids
||Collection Systems Tunnel Ventilation
Three presentations related to the use of OdoWatch - unique electronic nose odor monitoring technology – will be presented over the duration of this odor specialty conference.
The Relative Benefits of Dynamic vs Steady-State Continuous Odor Emissions Dispersion Monitoring for Multiple Sources, D. Froehlich , Pima County, AZ ; C. Mendes, Odotech
02E 11:30am Session 2: Planning for a Better Odor Tomorrow Monday, April 16 Room: 104 8:35am - 12:00pm
Using the Monitoring of Odors from a Biosolids Composting Site to Optimize the Process and Reduce the Costs D. Martin, T. Jean, Sede Environnement ; P. Micone, Odotech
07C 2:45pm Session 7: Biosolids Odors and Control: A Broad Perspective Tuesday, April 17 Room: 1:35pm - 5:00pm
Odor Control Using Chemical Dosing, Coupled with Odor Monitoring Electronic Noses on an Aeration Basin at a WWTP M. Feltner, A. Kennedy, J. Layne, Hampton Roads Sanitation District ; P. Neofotistos, US Peroxide ; T. Pagé, Odotech ; S. Paterson, Kruger
10D 11:00am Session 10: Innovative Approaches to Odor/Emissions Control and Estimating Wednesday, April 18 Room: 104 8:35am - 12:00pm
Come visit us at Booth: 114
Odotech will feature its patented technologies to see, track, monitor & manage odors 24/7 including eNoses and H2S detectors. Alerting operators during odor episodes give way to; proactive management; reduce complaints; chemical costs.
The conference will be held at the Kentucky International Convention Center
Conference: April 15 –18, 2012
Exhibition: April 16–17, 2012
Conference Brochure (PDF)
A recent study shows that OdoWatch is an effective technology to help reduce odors at wastewater treatment plants. People who live near the Chesapeake-Elizabeth wastewater treatment plant in southeast Virginia can thank HRSD for their proactive approach to address odors and commitment for improving their quality of life with state-of-art odor monitoring sensors.
This test of OdoWatch technology was significant since HRSD is a large regional waste water treatment utility. The plant is 24 MGD design capacity and operates anywhere from 12-18MGD. Other municipalities may want to take note and consider how OdoWatch technology might help them save money while better serving their customers.
OdoWatch technology allows wastewater treatment employees to better assess the need to use chemicals to prevent odors from escaping. By monitoring the escaping odors, it also allows chemicals to be added more scientifically and only when really needed.
Mark Feltner, an HRSD environmental scientist, organized the recent study of the effectiveness of OdoWatch. He and his colleagues conducted the study by observing the effectiveness of OdoWatch at the HRSD regional waste water treatment utility. The study concluded that the utility was able to reduce chemical use by up to 10%, while reducing odor at the same time. Chemicals are a significant part of the cost of all water treatment. So, fewer chemicals mean greater savings. Astoundingly, even with this reduction of chemical use, the odors emitted were less than when the utility was using more chemicals.
In assessing the importance of this study, Feltner concluded that, "By using the OdoWatch technology, we can assure our neighbors and rate payers that we are doing everything possible to reduce the potential for off-site odors while operating our plants as efficiently as possible."
Since citizens pay for the waste treatment process, they are concerned about costs as well as about quality. Everyone benefits by running our water treatment plants more efficiently.
Odotech will partner with Kruger at WEFTEC 2011 edition . Come and see the latest version of OdoWatch with the new added functions. Also on display, our new H2S monitor, OdoSulf, which has the lowest detection threshold on the market. We will illustrate their effectiveness by presenting actual case studies.
Come and join us at Booth 2525!
At wastewater treatment plants (WWTP), municipal or industrial, the first intuitive step for odor control is to capture emissions from the most onsite smelly areas. And your nose can tell you which ones they are.
Well, can you really rely on your nose?
Covering primaries, secondaries, DAF or aeration basins would represent major investments: first covers, then gas collection, plus piping, and odor treatment. Millions $ are there: $3M to $8M on covers and engineering + $2M to $5M for scrubbers and piping.
In your odor master planning, it is possible to phase your investment and address first only what will provide you the best bang for the buck.
The question is how far should you go on odor control $ before reaching acceptable off-site odor impact?
It is almost impossible to know from onsite sniffing how far on odor is travelling from diffuse sources. And what about the thousands other different weather conditions that will occur over the seasons by the combination of wind speed, wind direction, temperature, atmospheric pressure, humidity and solar radiation? In your odor master planning, before spending big $ on covers and odor control, why not monitor first in your odor study$.
How much should each source be knocked down? The question is how far should you go on odor control $ before reaching acceptable off-site odor impact?
Classical static odor study (Odor sampling, odor panel and odor distribution modeling) is good but limited to a few entry points. It does not capture all the complexities of the fluctuations induced by variations of the influent, operations and meteorological conditions.
Monitoring odors first with electronic noses at each candidate source for odor control could provide very valuable information:
- Variations, fluctuations, trends of odor emissions
- Peaks, lows and average odor loads
- How far the odors are traveling from each source
- Which sources contribute the most to the off-site odors or odor complaints
- How much should each source be controlled.
If you use a traditional odor study, your engineers may work with as few as 3 snapshot samples to design your odor control master plan that will cost millions... or benefit from thousands of objective data points by using continious odor measurement devices. (It is like seeing 3 pictures to understand the scenario of a story or watching the full movie!)
Your savings could potentially be massive. Think of the cost of under sizing, over sizing or inappropriate design.
However, it has been scientifically demonstrated over the last decade that H2S is only partially responsible for the odors perceived offsite. Monitoring H2S for odor problems may lead to underestimations of the odor intensity or completely missing the contribution of other odorous compounds (VOCs, ammonia & amines, other sulfurous compounds, etc). We invite you to read these blogs:
Olfactometric quantification is essential for quantifying the overall odor level (odor concentration). Many operators today recognize the value of odor monitoring expressed in odor units for understanding odor complaints and improving their production processes. (http://blog.odotech.com/bid/51233/Pima-County-Marks-1-Year-of-Odor-Management-Innovation). However, there is a continuity problem in switching from H2S to Odor monitoring. How to relate the H2S historical data to the new Odor measurements ?
It is now possible to bridge the gap between H2S and Odor real-time monitoring by merging OdoWatch (odor monitoring with eNoses) with the new OdoSulf technology (H2S monitoring). Simultaneous H2S and Odor on the same platform is made easy with two 100% compatible technologies.
OdoSulf is the first automated system designed specifically for Hydrogen Sulfide (H2S) emissions with atmospheric dispersion plume display. The sulfNoses (H2S detectors) can measure H2S down to 2 ppb at the perimeter and up to 100 ppm at the emission source. The system delivers a real-time H2S atmospheric plume display. The data are then archived for future reference.
It is now possible with one air quality monitoring system to track real-time Odor and H2S. The eNoses and H2S monitors can be located at the sources and/or at the fenceline for the SulfNose. But all the sensors are integrated in one software to get H2S plumes and Odor plumes simultaneously and fenceline H2S logs. You can get alerted when odors are leaving your site, and know how far and were they travel.
Some of the possible uses of this combined H2S-Odor approach:
- Insure regulatory compliance (Track the H2S values at the property boundaries)
- Reduce the cost and impact of air quality & Odor investigations
- Improve community relations
- Monitor the effectiveness of abatement actions taken
- Optimize process
- Manage proactively
- Manage off-site impacts and complaints
- The sulfNoses + eNoses at the emission sources plus real-time modeling quickly determine whether or not the H2S from the facility is causing an off-site impact at complaint location
- In case of an alert, they show immediately which of the site sources needs action.
- Access historical data as needed.
- Monitor trends or address complaints.
- Quantify H2S/Odor to optimize H2S/Odor emission controls.
- Implementation of controls can be prioritized.
When you’re faced with the selection of odor monitoring options at a waste water treatment plant, the decision making process can be confusing: Should I measure H2S? Should I consider using a field olfactometer? What can I learn from an odor study? What about real-time odor monitoring? What are the costs? What are the risks? And, if there are no consequences for emitting nuisance odors or you are not actually receiving complaints, why bother monitoring at all?
If you manage a facility that is responsible for nuisance odor emissions, you should monitor them, and do so in real-time. Here’s why: it is a proactive approach and your best defense against unfounded complaints (or complaints caused by others), it will convey your interest in ensuring your status as a good neighbor, and it will help you optimize your overall operating and capital costs.
Proactive approach and best defense
Real-time odor monitoring with OdoWatch is your best defense against unfounded or targetted complaints. Especially if you have competing odor sources from other neighbors, there is no other way to demonstrate where your responsibility ends and others’ begins. The issue of nuisance odors is an emotional one. Often, a foul odor is the first indicator of something wrong in the environment. People become alarmed and sometimes fearful that they are breathing in toxic gases. If you are tracking the odors emitted from sources at your facility, you are producing the documentation needed to demonstrate and discuss what you are and are not accountable for. You can also use this information in describing the results of your efforts to community members and other stakeholders, and if necessary you could use the information in court (having a traceability of odor emissions, meteorological data and off site odor levels associated with your sources). There is no other method that can provide better odor management information and protection from nuisance complaints.
Optimized odor complaint management
Before real-time odor monitoring, when an odor complaint was received at a waste water treatment plant, the tedious task of investigating began. Often, a staffer would visit the location where the call came from and attempted to diagnose it by smell, if the odor was still present. The time lag between complaint and investigation, and the potential it was due to the occurrence of a peak emission event in the process, did not always result in the ability to identify and solve the problem. But with OdoWatch, plant operators can immediately see if the odor at the location of the complaint could be linked to their operations, and if so, from which monitored process. When your neighbors know that you are investing in the best available technology in order to manage odors, you are on the road to building trust. When you respond to an odor complaint with a copy of the odor plume in the vicinity of their home, they know you are staying on top of the problem and are most likely to identify and address the issue. Your facility is seen as a better neighbor in the process. Also, any odor complaints you receive will be more reliable since the neighbors know you are using advanced systems to monitor and assess your off site impacts.
Finally, using odor monitoring to update predictions of actual odor impacts every few minutes enables you to control odors with efficiency. The OdoWatch system can help you spot, diagnose and correct odor problems as they happen or even before they can be called "problems" – not days or weeks later when the surge of complaints starts coming in. Users of OdoWatch have detected system leaks, trends showing loss of treatment efficiency over time, maintenance issues and chemical dosing errors that they were able to correct rapidly, reducing odors in their vicinity. Making subtle changes can often result in major savings over time. The monitoring can also lead to more efficient equipment design when faced with odor abatement installations and upgrades. The savings can be impressive!
While it’s true that no single method of measuring odors is perfect, real-time monitoring with OdoWatch is the best available technology today. As more people use the technology, their comments and needs are considered by the OdoWatch R&D team, and improvements are built in at each new software release. Each new version, including the upcoming OdoWatch 3.0, provides additional reasons for supporting the implementation of real-time odor monitoring.
Consistent with Kruger’s vision of being a leading supplier of value added water and wastewater treatment equipment and process solutions, we have integrated the Odowatch system in our offerings. Kruger (I. Kruger, Inc.) is a subsidiary of Veolia Water, one of the largest full service water and wastewater companies in the world.