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News Archive

December 2012

GPS-X Version 6.2 Released

Hydromantis’s new release of GPS-X™, 6.2, features a struvite precipitation reactor, open basin HPO object, and plant wide mass balance tables.

GPS-X v6.2

View the press release.

Email info@hydromantis.com for upgrade support.

September 2012

Hydromantis develops a high purity oxygen (HPO) module in partnership with Praxair, Inc.

The Praxair display at WEFTEC will feature the use of High Purity Oxygen (HPO) systems that incorporate oxygen into processing systems and will include a new software module demonstration that helps determine the impact of using HPO systems in place of air-based systems to meet wastewater treatment process requirements. The HPO module is included with the latest version of Toxchem™.

Click here for the press release.



Hydromantis and The City of Hamilton to demonstrate an advanced wastewater treatment plant operator training and development platform at WEFTEC 2012 in New Orleans.

Click here for the press release.

City of Hamilton


Come see us - Booth #2645

The following Hydromantis experts will be a part of WEFTEC 2012.

Oliver Schraa,

Rajeev Goel,
VP of Technology

Spencer Snowling,
VP of Business &
Product Development

Hank Andres,
Senior Process

Hugh Monteith,
Senior Consultant

Darren Richarz,
VP of Sales & Marketing

W102: Sustainable Aeration Practice
Saturday, September 29, 2012, 8:30 AM - 5:00 PM
Room 345

Diego Rosso, University of California, Irvine
Michael Stenstrom, Unversity of California, Los Angeles
Jochen Henkel, Colorado School of Mines
Don Howard, City of Greensboro
Joe Rohrbacher, Hazen and Sawyer, P.C.
Spencer Snowling, Hydromantis ESS, Inc.
Oliver Schraa, Hydromantis ESS, Inc.

Lory Larson, Southern California Edison

TS013: A Model for Improved Operations
Monday, October 1, 2012, 1:30 PM - 3:00 PM
Room 355

Alt 1 SimuWorks: A Cost-Effective Model-Based Wastewater Treatment Plant "Flight Simulator" and Training Tool for WWTP Operators
Speaker: Hank Andres, Hydromantis ESS, Inc.

TS035: Counting Greenhouse Gases: Changing Your Operational World
Tuesday, October 2, 2012, 8:30 AM - 12:00 PM
Room 353

10:30am Implementation of Carbon Footprint Model in a Dynamic Process Simulator
Speaker: Rajeev Goel, Hydromantis ESS, Inc.

TS110: Biosolids as Resource
Wednesday, October 3, 2012, 1:30 PM - 5:00 PM
Room 357

3:30pm Microconstituents in Biosolids Treatment: A Canadian Field Study
Speaker: Hugh Monteith, Hydromantis ESS, Inc.

August 2012

Hydromantis is pleased to announce that the City of Barrie, through a competitive bid process, has selected Hydromantis’ industry leading GPS-X™ simulation platform for the Barrie Wastewater Treatment Facility.  The introduction of GPS-X™ is part of The City of Barrie’s continuing commitment to optimize plant operations and efficiencies while also providing the most advanced tools for operator training and development.



Hydromantis enhances The Ontario Clean Water Agency’s (OCWA) training programs with SimuWorks™, Hydromantis’ advanced operator training and development platform based on the industry leading GPS-X™ simulation technology.

Click here for more information.






Oliver Schraa, Hydromantis President, is a co-author of an upcoming WEF book entitled,
"Solids Process Design and Management".

To be released at the 2012 WEFTEC bookstore or online here.


June 2012

Toxchem Version 4.1 Released

Hydromantis releases Toxchem™ 4.1, the latest version of the industry’s most advanced simulator to predict and report on wastewater air emissions and contaminant fate.

Toxchem v4.1

View the press release or the new features flyer.

Email info@hydromantis.com for upgrade support.

March 2012

Hydromantis and Mohawk College implement a carbon footprint model to help reduce greenhouse gas emissions at wastewater treatment plants

Click here for the press release.

Carbon Footprint

December 2011

Announcing the Release of SimuWorks

Hydromantis announces SimuWorks™, the world’s first water and wastewater treatment plant control room simulator.

Click here for the press release or here for more information.



October 2011

GPS-X Version 6.1 Released


Click here for the press release or email info@hydromantis.com for upgrade support.


Available in Android Market

A simple, fast and easy to use unit converter built specifically for wastewater professionals. WaterUnits offers unit conversion between various common Metric (SI) and Imperial (US) water and wastewater units and also allows users to add their own.

Click here for the press release.




Hydromantis VP of Technology, Rajeev Goel, is the co-author of a recent paper by Marius Majewsky in the Water Research journal:

M. Majewsky, T. Galle, M. Bayerle, R. Goel, K. Fischer, P. A. Vanrolleghem (2011). Xenobiotic removal efficiencies in wastewater treatment plants: Residence time distributions as a guiding principle for sampling strategies. Water Research., Vol. 45, Issue 18, pp. 6152-6162.


Water Research


Please visit us - Booth #2859

Hydromantis experts are involved in the following technical presentations as part of WEFTEC.11.

Oliver Schraa,

Rajeev Goel,
VP of Technology

Hugh Monteith,
Senior Consultant

Hank Andres,
Senior Process Engineer

Workshop 213: WEF/WERF Hands-on Selection of the Best Combined Heat and Power System for Your Plant 
Sunday, October 16, 2011
2:30 PM

Understanding and Using WERF’s Life-cycle Cost Assessment Tool
(H. Monteith)
3:30 PM
Small Group Breakout Session: Hands-on Experience with WERF’s Life-cycle Cost Assessment Tool
(O. Schraa, H. Monteith)

Session 33: Wastewater Management in the Energy-Producing Industries
Tuesday, October 18, 2011
8:30 AM

Process Optimization of a Petroleum Refinery Wastewater Treatment Facility Using Process Modeling and Site Specific Biokinetic Constants
(H. Andres, D. Kujawski, O. Schraa, A. Wong)

Session 56: Treatment of Industrial Wastewater in POTWs
Tuesday, October 18, 2011
3:30 PM

How Effective is SRT Control for Eliminating Microconstituents?
(H. Monteith, H. Andres)

Session 79: Moving Fixed Film Design and Operating Parameters
Wednesday, October 19, 2011
9:30 AM

Examining the Phenomenon of Self Regulation of Biofilm Density under Dynamic Conditions Using a Biofilm Model
(R. Goel, A. Kaldate, S. Murthy, O. Schraa, B. Stinson)

Session 101: Anaerobic Treatment of High Strength Industrial Wastewater
Wednesday, October 19, 2011
2:30 PM

Enhanced Biogas Generation With a Novel Thermophilic Activated Anaerobic Digestion System
(J. Kang, K. Olmstead, O. Schraa, Y. Eum)

September 2011

Dr. Gilles Patry, founder of Hydromantis, speaks at the International Forum on Research and Development. 

Click here for the news coverage on CHCH.



Curso Taller Diseño, costeo, modelación de PTAR

Our Mexican representative is hosting several training workshops for CapdetWorks and GPS-X throughout September, October, and November.

For more information, click here.




The McMaster University Engineering Alumni magazine, MacEngineer, has a feature story this month on two Hydromantis team members.  McMaster engineering alumni Spencer Snowling and Oliver Schraa discuss their past influences at McMaster, the role of simulation in the wastewater industry, and the meaning of the name “Hydromantis”.

Check out the Fall 2011 edition on the McMaster website.


August 2011

Announcing the Addition of CapdetWorks to our Video Library

Please review our extensive range of flash videos offering product overviews, tutorials and technical support.  This growing library of streaming videos, organized by product line, offers step-by-step user tutorials, product features and highlights, technical support and answers to some of our most frequently asked questions.

Visit the Videos page.



Energy and Water 2011: Efficiency, Generation, Management, and Climate Impacts

Hyatt Regency McCormick Place
Chicago, Illinois

Conference: July 31 - August 3, 2011
Exhibition: August 1-2, 2011

Hydromantis' president, Oliver Schraa, presented the following paper:

Resource Recovery and Municipal Wastewater Treatment: Modeling of a New Approach
O. Schraa, Hydromantis Environmental Software Solutions, Inc.; P. Sutton, P.M. Sutton & Associates, Inc.; R. Goel, H. Andres, Hydromantis Environmental Software Solutions, Inc.
Wednesday, August 3, 2011
Hyatt Conference Center Room 11
18A 8:30am

Click here for more information on the conference.


July 2011

Curso Internacional Tratamiento Anaerobio de Aguas Residuales Industriales con Reactores UASB/EGSB

Dr. Rajeev Goel, Hydromantis' VP of Technology, will be a presenter at a Mexican workshop entitled “International Training Course on Anaerobic Treatment of Industrial Wastewater with UASB/EGSB reactors” in July. 

For more information, click here and here.


June 2011

Announcing the Addition of Toxchem to our Video Library

Please review our extensive range of flash videos offering product overviews, tutorials and technical support.  This growing library of streaming videos, organized by product line, offers step-by-step user tutorials, product features and highlights, technical support and answers to some of our most frequently asked questions.

Visit the Videos page.



Dr. Hongde Zhou, NSERC/GE Industrial Research Chair in Advanced Wastewater Technologies and a Professor at the University of Guelph joins Hydromantis for Sabbatical.

Click here for more information.




Hydromantis president, Oliver Schraa, is the co-author of a recent paper in the Water Science and Technology journal:

P.M. Sutton, B.E. Rittmann, O.J. Schraa, J.E. Banaszak and A.P. Togna (2011). Wastewater as a resource: a unique approach to achieving energy sustainability. Wat. Sci. & Tech., 63(9), pp. 2004-2009.




Oliver Schraa, President of Hydromantis, will be a presenter at a WEAO Specialty Seminar entitled “Whole WWTP Modeling: Overview, Tools & Future Needs” on June 23, 2011 in Milton, Ontario Canada.


May 2011

Hydromantis Releases Advanced Simulator to Predict and Report on Wastewater Contaminants and Air Emissions

Hydromantis Environmental Software Solutions, Inc. (Hydromantis), a leading global provider of water and wastewater simulation software and consulting services, announced today the latest release of their trace contaminants fate modelling tool, Toxchem v4.

Click here for more information.



Hydromantis to Provide Consulting Services to Halifax Water for Biosolids Stabilization Technology

Click here for more information.

Halifax Water


Water Environment Federation (WEF) Industrial Wastewater Seminar 2011

Bally’s Hotel/ Atlantic City, New Jersey
May 9-10, 2011

Mr. Hank Andres, Mr. Hugh Monteith and Dr. Spencer Snowling of Hydromantis Environmental Software Solutions will be participating at the seminar:

Session 3 – Microconstituents
Monday, May 9, 2011 (1:15 p.m. – 4:45 p.m.)
3A) 1:15 pm - Investigating the Fate of Triclosan in Wastewater Treatment through Fate Modeling
Presented by: Mr. Hugh Monteith and Mr. Hank Andres, Hydromantis Environmental Software Solutions, Inc.

Session 5 - Process Optimization
Monday, May 9, 2011 (2:45 p.m. – 4:45 p.m.)
5B) 3:15 p.m. - Process Optimization of Industrial Wastewater Treatment Facilities Using Dynamic Process Modeling
Presented by: Mr. Hank Andres, Hydromantis Environmental Software Solutions, Inc.

Session 6 – Pharmaceutical Industries’ Wastewater Treatment
Tuesday, May 10, 2011 (8:45 a.m. – 12:15 p.m.)
6C) 9:45 am - The Fate and Transformations of Microconstituents in Wastewater: What Can Modeling Tell Us?
Presented by: Mr. Hugh Monteith, Hydromantis Environmental Software Solutions, Inc.

Session 10 - Innovations
Tuesday, May 10, 2011 (2:45 p.m. – 4:45 p.m.)
10A) 1:15pm - Automated Model Calibration and Forecasting for Unit Process Maintenance
Presented by: Dr. Spencer Snowling, Hydromantis Environmental Software Solutions, Inc.

Click here for more information on the seminar.




Shanghai New International Expo Centre (SNIEC)
May 5-7, 2011

Mr. Zhiping Qiu, Director of China Operations for Hydromantis Environmental Software Solutions Inc. (HESSI) is participating at the IFAT CHINA + EPTEE + CWS Exhibition from May 5-7, 2011 in Shanghai.   

Our booth is located at Booth 5520, Ontario Pavilion, Section E5 at the Shanghai New International Expo Center. Please drop by to say hello.

Click here for more information on the seminar.




Dr. Rajeev Goel, Hydromantis' VP of Technology, is the co-author of a recent paper in the Water Science and Technology journal:

K. Komatsu, H. Yasui, R. Goel, Y. Y. Li and T. Noike (2011) Novel anaerobic digestion process with sludge ozonation for economically feasible power production from biogas, Water Science & Technology,  Vol 63 No 7 pp 1467–1475.


April 2011

At the Annual Conference of the Water Environment Association of Ontario, Hydromantis' Hugh Monteith is presenting a paper titled “Update of WEAO Survey of Fate and Significance of Emerging Substances and Pathogens in Biosolids”.

The paper highlights the results and identified knowledge gaps of two recent literature reviews. The detailed reviews documented the occurrence and fate of pathogenic organisms and emerging substances of concern, such as pharmaceuticals and personal care products, in biosolids and in the terrestrial environment following soil amendment of biosolids.



Hydromantis president, Oliver Schraa, is the co-author of a recent paper in the Water Science and Technology journal:

P. M. Sutton, H. Melcer, O. J. Schraa and A. P. Togna (2011). Treating municipal wastewater with the goal of resource recovery. Wat. Sci. & Tech., 63(1), pp. 25-31.


March 2011

Announcing Our New Video Library

Please review our extensive range of flash videos offering product overviews, tutorials and technical support.  This growing library of streaming videos, organized by product line, offers step-by-step user tutorials, product features and highlights, technical support and answers to some of our most frequently asked questions.

Visit the Videos page.

Consultores Internacionales En Tratamiento Y Reuso Del Agua

MexicoOur Mexican representative is hosting two training workshops for CapdetWorks and GPS-X.

The first is in Puebla City on February 21-25.

The second is in Mérida on March 7-11.


February 2011

Hydromantis is currently offering live, 30-minute, free webinars. Visit the Webinars page for more details

January 2011

Hydromantis Contributes to New WEF Manual of Practice

Hydromantis president Oliver Schraa contributed to the Water Environment Federation's recently released "Nutrient Removal : WEF Manual of Practice 34". Oliver authored sections on control, optimization, sensitivity and online applications in Chapter 11 "Structured Process Models for Nutrient Removal".

Nutrient Removal

November 2010

Our GPS-X V6 training workshop (Nov 3,4) and User Group Meeting (Nov 5) in Lisbon, Portugal was a great success.

Thanks to all who attended.

October 2010

Hydromantis Welcomes Adam Smith

We are pleased to announce the recent addition of Mr. Adam Smith to our technical team. Adam is a graduate of the University of Guelph’s Engineering Systems and Computing (BEng) program, and will be focusing on GPS-X and future product development.


Hydromantis staff are involved in the following technical presentations, workshops and posters as part of WEFTEC.10 in New Orleans.

Sunday Workshop 202: Nitrogen Upgrade Life-Cycle Cost Assessment Simulation: Digital Game-Based Learning (Spencer Snowling)

Sunday Workshop 215: Waste to Resource: Crafting Forward Thinking and Pragmatic Approaches (Hugh Monteith)

Sunday Workshop 216: Process Design of Industrial and Municipal Wastewater Treatment Systems: Design Approaches and State-of-the-Art Modeling Tools (Hugh Monteith)

Monday Session 18: Modeling pH dynamics in Nutrient Removal Activated Sludge Process (R. Goel , J. Makinia, O. Schraa, S. Snowling, H. Andres)

Wednesday Session 100: Model Calibration for a Post Denitrification Moving Bed Biofilm Reactor (A. Kaldate, R. Goel, O Schraa, S. Snowling, B. Stinson, S. Murthy)

GPS-X Version 6.0 Released


Check the GPS-X product page for more information or email info@hydromantis.com for upgrade support.

September 2010


The Canadian Council of Ministers of the Environment recently published the report "Emerging Substances of Concern in Biosolids: Concentrations and Effects of Treatment Processes" by Hydromantis researcher Hugh Monteith et al. The report can be found here on the CCME website in pdf format.



The article "The Persistence of PBDEs" by Hydromantis researchers Hugh Monteith, Hank Andres, Spencer Snowling and Oliver Schraa was published in this month's WEF Industrial Wastewater Bulletin (Vol. 9, No.4). The article describes the use of modelling to study the fate of polybrominated diphenyl ethers (PBDEs) in a conventional activated sludge system.



Hydromantis' Rajeev Goel co-wrote a chapter in the recently published book, "Environmental Anaerobic Technology Applications and New Developments" edited by Herbert H P Fang (The University of Hong Kong, Hong Kong).

Anaerobic technology has become widely accepted by the environmental industry as a cost-effective alternative to the conventional aerobic process. In addition, with the intrinsic advantages of energy saving, reduced sludge yield, and production of biofuel, anaerobic process will be the favored green treatment technology for sustainable environment in years to come.

For more information, click here.



One of our GPS-X users, Dr. Jacek Makinia, has just released a book entitled "Mathematical Modelling and Computer Simulation of Activated Sludge Systems"

It is a comprehensive guide to modeling and simulation studies in activated sludge systems that leads the reader through the entire modeling process – from building a mechanistic model to applying the model in practice.

For more information, click here.


IWA World Water Congress and Exhibition

Montreal, Canada, Sept 19-24.

IWAOliver Schraa is participating in the workshop "Explicitly dealing with uncertainty in WWTP design and operation" on Monday, September, 20th, presenting the talk "What can we learn from other water disciplines?".

Oliver is also a co-author of the paper "Treating Municipal Wastewater with the Goal of Resource Recovery", with P.M. Sutton, H. Melcer, and A.P. Togna, being given on Wednesday, September 22nd in the session "Membranes for Wastewater Treatment - Full-scale Application of Membrane Technology".


WEF/IWA Biofilm Reactor Technology Conference

Portland, Oregon, Aug 15-18.

Spencer Snowling presented a paper entitled "Modeling A Full-Scale IFAS System in Groton CT " (Spencer Snowling, Amit Kaldate, Oliver Schraa, Rajeev Goel, Carl Almquist) .

JULY 2010

Hydromantis contributes to WEAO Biosolids Report

WEAOWEAO (Water Environment Association of Ontario) announced in July the completion of a new report co-authored by Hydromantis titled "Assessing the Fate and Significance of Microconstituents and Pathogens in Sewage Biosolids - Update of the 2001 WEAO Report on Fate and Significance". The report can be found on the WEAO website in pdf format, using this link: WEAO Biosolids Report

June 2010


WEFWEF Membrane Applications Specialty Conference
Anaheim California June 5 to 9th.

Oliver Schraa presented the paper "A Dynamic Model of Membrane Bioreactor Systems for Wastewater Treatment " (Oliver Schraa, Hank Andres, Spencer Snowling, Rajeev Goel) .

MAY 2010


WEFHugh Monteith was a presenter at a workshop in the use of digester gas for combined heat and power at the WEF Residuals and Biosolids Conference in Savannah, GA, May 23-26.


April 2010

Name Change

Hydromantis, Inc. of Hamilton, Ontario has amended its name to : Hydromantis Environmental Software Solutions, Inc.

Click here for more details.


WEAO 2010 Annual Conference - Toronto, Ontario

Oliver Schraa presented the paper "Evaluation of Wet Weather Treatment Alternatives at the Port Dalhousie WWTP" (O. Schraa, M Newbigging, D. Averill, M Tanne, M Solomon, A. Joyner).

February 2010


The April issue of WE&T magazine will feature a co-authored paper utilizing GPS-X v5.02 entitled "How Low Must you go? - Continuous-backwash filters can meet exceptionally low effluent nutrient limits". GPS-X was used to predict the performance of a denite filter.

Hydromantis is pleased to announce we have collaborated with Refinery Water Engineering & Associates (RWEA) on a joint paper entitled "Deployment of Biokinetic Modeling Tools to Optimize Real-time Biological Wastewater Process Control in the Oil refining Industry". This paper has been submitted to the American Academy of Environmental Engineers as part of their annual excellence in Environmental Engineering competition.

Hydromantis Staff (Hugh Monteith, Lars Sterne and Shujun Dong), with collaborators Dr. Wayne Parker of the University of Waterloo and Dr. Chris Metcalfe of Trent University, have just finalized a major literature review report for the Canadian Council of Ministers of the Environment. The Review is titled "Emerging Substances of Concern in Biosolids: Concentrations and Effects of Treatment Processes". This in-depth review tabulates concentrations of these microconstituents in various sludge and biosolids matrices with a focus on the effectiveness of different biosolids treatment processes for reducing the mass of these contaminants in treated biosolids. Watch for this report that will soon be posted on the CCME website.

Meetings/Workshops and Conferences

Hydromantis senior process engineer Dr. Rajeev Goel is a co-author on a paper that will be presented at the International Water Association - leading edge technology conference at Phoenix Arizona June 2-4 2010. The paper is titled "Advanced Anaerobic Digestion process with Ozonation towards Feasible Power Production from Biogas".

Look for details in the near future for the our GPS-X European 2 day training and user group meeting to be held in Lisbon, Portugal in November 2010.

Hydromantis staff will be presenting 3 days of intensive training on the use of Toxchem in Beijing China May 5 - 7th to the staff of SINOPEC one of China's largest Oil companies. A 3 day training session on GPS-X will also be held in Ningbo, China.

WWTmod2010 Workshop
Hydromantis Inc. is co-sponsoring WWTmod2010 which is the 2nd IWA/WEF Wastewater Treatment Modelling Seminar on March 28-30 in Monte-Sainte-Anne, Quebec.
Oliver Schraa is an organizing committee member and Senior scientific committee member.
Hank Andres is a scientific committee member.
Dr. Rajeev Goel will be taking part in the WWTmod2010 conference as part of the workshop "Towards a Generalised Physicochemical Framework". He will be presenting a paper titled "Limitations and framework in current IWA models"
Hugh Monteith is a member of the organizing committee for the workshop "Modelling micropollutants fate: status and challenges", co-moderated by Dr. Lorenzo Benedetti of the University of Ghent and Dr. Hansruedi Siegrist of EAWAG, Switzerland. Hugh will make a feature presentation titled "Development and calibration of fate models for micropollutants in wastewater".
On March 25 and 26, a Dissemination workshop will be held highlighting the efforts of the European Neptune Project. The Neptune Workshop, titled "Technical Solutions for Nutrient and Micropollutants Removal in WWTPs" is held in conjunction with the WWTmod2010 Workshop. At the Neptune Workshop, Hugh Monteith will make a presentation on March 25 titled "Fate and Transformations of micropollutants in WWTPs: Status in North America"

At the Water Environment Federation's Specialty Conference on Residuals and Biosolids 2010 in Savannah, GA, Hugh Monteith is contributing a presentation at a workshop on May 23 focusing on Digester Gas Combined Heat and Power. He will be speaking about a spreadsheet model called LCAMER, the Life Cycle Assessment Manager for Energy Recovery, which Hydromantis and colleagues developed for the Water Environment Research Federation.


Hydromantis has recently developed a Bulgarian language interface for GPS-X Version 5.02. Please feel free to contact us for a license.

January 2010

Upcoming WE&T Article on Operator Training

Spencer Snowling has co-authored the article "Cost-Effective Training of WWTP Operators with Virtual Treatment Plant Models" with several Hydromantis staff.
The article will appear in the Operations Forum section of the February 2010 issue of the WEF publication Water Environment & Technology.

December 2009

GPS-X v5.02 is available in the following languages.

1  Spanish   2  Chinese    3  Korean

4  French    5  Japanese  6  Hungarian

7 Russian    7 English

November 2009

Oliver Schraa is participating in the IWA Design and Operational Uncertainty Task Group (DOUTGroup).

Oliver is leading Task A4: "Incorporate knowledge from other fields and institutions on applications of uncertainty evaluation methodologies" and is also participating in Task A3: "Document and evaluate existing methods for assessing and evaluating uncertainty in wastewater treatment".

October 2009


Rajeev Goel co-authored with Yasui Hidenari (The University of Kitakyushu, Japan) a chapter on "Application of Mathematical Models to Anaerobic Digestion Process" for the book "Anaerobic Technology for Sustainable Environment", Imperial College Press, 1-21

October 2009


Come visit Hydromantis, Inc. at WEFTEC 2009 in Orlando, Florida, October 12-14, Hall A. Booth 2859.

We will be previewing the upcoming releases of GPS-X 6.0 (WWTP modeling) and TOXCHEM+ 4.0 (fate of toxics). We will also be demonstrating CapdetWorks 2.5 (design and costing), ARTS 1.4 (Hydraulic design), and WATPRO 2.0 (drinking water disinfection). Hydromantis, Inc. staff will also be presenting or co-authoring a number of technical papers.

Technical Papers To Be Presented At WEFTEC

Monday, October 12, 2009 (11:00 am) Session 03: "Resource Recovery and Municipal Wastewater Treatment: A New Approach to Combining Biological and Physical-Chemical Processes". P.M. Sutton, C.L. Wallis-Lage, O.J. Schraa, A.P. Togna.

Tuesday, October 13, 2009 (11:30 am) Session 043: "Use of a Batch Reactor To Calculate Removal Rates To Verify Model Calibration". M. Gray, S. Kestel, S. Snowling.

Wednesday, October 14, 2009 (9:00 am) Session 086: "Estimating Air Emissions From an Industrial Cooling Water Reservoir After an Accidental Material Release". H. Monteith, H. Andres, O. Schraa, S. Snowling.

Wednesday, October 14, 2009 (11:00 am) Session 087: "Development and Calibration of Fate Models for Micro-Constituents in Wastewater". H. Monteith, O. Schraa, H. Andres, S. Snowling.

Wednesday, October 14, 2009 (4:30 pm) Session 116: "Cost Effective Training of WWTP Operators with Virtual Treatment Plant Models". S. Snowling, O. Schraa, R. Goel, H. Andres, B. Tole.

October 2009


ScorePP Workshop
Quebec City, Quebec, Canada
Oct 4-5th 2009

(Un)successful Strategies to Reduce Emissions of Microconstituents
WEF Micro-constituent Community of Practice

Presented by: Hugh Monteith

July 2009

Presentations and Workshops

Microconstituents and Industrial Water Quality Conference 2009
Baltimore, Maryland, USA
The Marriott Inner Harbor at Camden Yards.
July 26 - 29, 2009

Hydromantis presentations included:

Workshop A: Process Design Approaches and State-of-the-Art Modeling Tools –Problem Solving Sessions for Organics, Nitrogen and Microconstituents Removal

Modeling of Industrial Wastewater Treatment - Background, Challenges, and Continuation of Problem Solving Example using GPS-X Modeling Tool
Presented by: Oliver Schraa, Hydromantis, Inc.

Fate and Transformations of Microconstituents in Wastewater Treatment
Presented by: Hugh Monteith, P.E., Hydromantis, Inc.

Bioscrubbing of Process Air Emissions: When Does it Work?
Presenter: Hugh Monteith (Hydromantis, Inc.) and Joe Cleary (HydroQual, Inc.)

On-Line Dynamic Simulation to Monitor Multi-Point Water Inventories at an Industrial Water Treatment Plant
Presenter: Rajeev Goel (Hydromantis, Inc.)

May 2009


McMaster Advanced Control Consortium (MACC) Annual Meeting
May 12-14, 2009
Models and Model Maintenance in Wastewater Treatment Applications
Presenter: Oliver Schraa (Hydromantis, Inc.)

April 2009

New Articles

An article entitled “Model-based evaluation of alternatives for treating wet weather flows” by Hydromantis’ Oliver Schraa was published in the Spring 2009 edition of WEAO’s INFLUENTS magazine.

Oliver is also featured in an article entitled “Modelers Take on the Challenges of Wastewater Treatment” in the same publication.

Announcing the 2009 Hydromantis User Group Meeting and Modelling Workshop

Location: Hotel Dedek Park, Warsaw, Poland

Dates: June 3-5, 2009

User Group Meeting - June 5, 2009
Are you a Hydromantis software user?  Interested in learning more about wastewater simulation tools?  Then plan on attending this year’s Hydromantis Software User Group Meeting in Warsaw, Poland on the 5th of June.
Come and meet with other modellers, and ask Hydromantis’ modelling specialists  for help with general modelling related issues or specific simulation problems.  Even present your own case study which demonstrates the use of GPS-X.

Modelling and Simulation Workshop - June 3-4, 2009
In conjunction with this meeting, a short course on modelling and simulation is being offered June 3rd and June 4th.  Whether you are an advanced wastewater professional or just getting started, plan on attending as we will provide you with the fundamentals as well as the advanced dynamic modelling and simulation training you have come to expect from Hydromantis, Inc.

June 3-4, 2009, 9:00 a.m. - 5:00 p.m (Workshop)
June 5, 2009, 9:00 a.m. - 5:00 p.m (User Group Meeting)

Contact info@hydromantis.com for more details or to register.

February 2009

Hydromantis Research Cited in Testimony before U.S. House of Representatives

On February 4, 2009, Glenn Reinhardt, the Executive Director of the Water Environment Research Foundation (WERF) appeared before the U.S. House of Representatives Subcommittee on Water Resources and Environment, providing testimony on sustainable wastewater management.  In his written remarks, Mr. Reinhart made reference to two WERF projects managed and delivered by Hydromantis Inc.  One study, produced by Hugh Monteith and Youssouf Kalogo of Hydromantis Inc. for WERF and co-members of the Global Water Research Coalition, examined the current state-of-knowledge on opportunities for recovery of energy and other resources from wastewater residual solids.  Besides use of energy-rich digester gas which can be used in on-site combined heat and power projects, the wastewater residuals can be “mined” for phosphorus, nitrogen, building material aggregates and other useful products.

The second report mentioned in Mr. Reinhardt’s testimony produced an estimating tool that municipalities can use to compare the life cycle costs of different technologies for recovering the energy in digester gas.  Hugh Monteith and colleagues from the University of Toronto constructed the LCAMER (Life Cycle Assessment Manager for Energy Recovery) model incorporating factors such as site-specific wastewater plant characteristics, costs for energy recovery equipment and energy, and the cost of borrowing. With these factors entered in the model, cities can compare the relative costs of technologies such as engine-generators, turbines and fuel cells.  An additional useful feature of the LCAMER (Life Cycle Assessment Manager for Energy Recovery) included the potential for including greenhouse gas reduction credits.

For further information, please contact info@hydromantis.com.

View WERF Testimonial

October 2008


In October, Hydromantis will attend the WEFTEC 2008 conference in Chicago, Illinois. Hydromantis will have a booth in the Exhibition Hall, and will be presenting a number of papers and workshop presentations. Please come visit us at booth 24070 in Hall B.

Hydromantis presentations will include:

Modeling the Fate of Estrogenic Hormones in Municipal Wastewater Treatment. Hugh Monteith, Hank Andres, Spencer Snowling, and Oliver Schraa
Tuesday October 21, 2008, Session 46, 9:30 AM

Modeling the Fate of Mercury, Selenium and Silver in a Large POTW. Hugh Monteith, Youssouf Kalogo, Guy Jamesson and Jeff Ifft
Tuesday October 21, 2008, Session 65, 1:30 PM

Resource Recovery from Wastewater Solids: A Global Review. Hugh Monteith, Youssouf Kalogo, Lauren Fillmore, Frans Schulting, Cora Uijterlinde and Steve Kaye
Wednesday October 22, 2008, Session 106, 3:30 PM

Promoting On-Site Use of Wastewater Process Models with Customized Simulators. Oliver Schraa, Bruce Tole, Evangelina Belia, Jing Luo, Dennis Froehlich, Jackson Jenkins, Edward Becker, and Patricia Martinak
Wednesday October 22, 2008, Session 115, 4:00 PM

Controller Commissioning. Oliver Schraa, Bern Adams, and Hugh Monteith
Workshop on Implementation of Instrumentation and Control in Wastewater Treatment, Sunday October 19, 2008 (W214, 8:30 AM – 4:30 PM).

Hydromantis will also be assisting with the Advanced Hands-On Workshop on Whole Wastewater Treatment Plant Modeling on Saturday October 18, 2008 (W103, 8:30 AM – 5:00 PM).

September 2008

Mexico City Workshop

Hydromantis in conjunction with CITRA will be hosting a 4 day workshop in Mexico City during the last week of September. The workshop will provide users with a combination of theory and hands-on modeling. Attendees will receive a free fully functional 30-day trail copy of GPS-X when they complete the workshop. For more information contact Jose Colli Misset at citraconsultores@yahoo.com.mx

June 2008

IWA WWTmod2008

In June 2008, Hydromantis attended the IWA WWTmod2008 conference in Monte-Sainte-Anne, Québec. Attendees from Hydromantis included Oliver Schraa, Rajeev Goel, Spencer Snowling, and Hank Andres. Oliver Schraa and Lina Belia (Primodal Inc.) chaired a workshop at the conference on “Experience with Models and Knowledge-Based Systems for Plant Operations”. The workshop included presentations from Joaquim Comas (University of Girona), Glen Nivert (Gryaab AB), Takayuki Ohtsuki (Kurita Water Industries Ltd.), Maureen O’Shaughnessy (Alexandria Sanitation Authority), Cyril Printemps-Vacquier (Veolia Water), and Stefan Weijers (Waterboard De Dommel). A summary paper describing the workshop results has been submitted to Water Science and Technology. In addition, a description of the conference can be found on page 42 of the Summer 2008 issue of the WEAO Influents magazine.

Oliver and Lina are trying to initiate the creation of an IWA task group on the on-site application of models and knowledge-based systems. As part of this work, a special issue on the on-site application of models and knowledge-based systems is being planned for the Water Practice and Technology on-line journal. Anyone interested in the task group or special issue, should contact Oliver Schraa (schraa@hydromantis.com) for details.

Papers presented at the conference or provided in the proceedings that discuss the use of GPS-X include:

Process simulation of wet weather performance for the Richmond WWTP. Yuan Fang, Art K. Umble, Edward J. Cronin, Hank Andres, Robert C. Steidel and Clair Watson

Wastewater treatment modelling in practice: A collaborative discussion of the state of the art. Heather M. Phillips, Kristian E. Sahlstedt, Kevin Frank, John Bratby, Bill Brennan, SteveRogowski, David Pier, Wendy Anderson, Michela Mulas, John B. Copp, Nick Shirodkar

Process modeling for design and optimization of wet weather treatment. Ed Becker, Jennifer Phillips, Sam Jeyanayagam, Susan Landon, Elizabeth Widmeyer, Joe Husband and Don Cruden

Full ASM1 calibration experience at a medium-size WWTP in Mexico. Cheikh Fall, Jimmy Loaiza-Navia and Mario Esparza Soto

May 2008

Paper and Presentation by Hugh Monteith

Hugh Monteith was invited to make a presentation at the Biosolids and Energy Workshop associated with the Florida Water Resources Conference on May 6. Hugh’s paper (title given below) described the development of the LCAMER (Life Cycle Assessment Manager for Energy Recovery) tool for determining the optimal use of anaerobic digester gas for on-site energy recovery. The LCAMER model was the end result of a four-year project led by Hydromantis Inc. and the University of Toronto for the Water Environment Research Foundation.

Cost-effective energy recovery from anaerobically treated wastewater solids (LCAMER model). Hugh Monteith

Hugh Monteith was invited by the Metropolitan Washington Council of Governments to present a paper at the workshop on Maximizing the Dual Benefits of Advanced Wastewater Treatment Plant Processes: Reducing Nutrients and Emerging Contaminants, held in Washington D.C. on May 12 and 13. Hugh’s paper (title given below) discussed the implications for energy consumption and greenhouse gas emissions by seeking to remove conventional and emerging wastewater contaminants to exceedingly low concentrations.

Energy costs and greenhouse gas impacts associated with removing emerging contaminants. Hugh Monteith

April 2008

Paper by Hugh Monteith

At the Ontario Water Works Association Annual Conference and Trade Show, April 27-30, Hugh Monteith presented a paper on the successful integration of Hydromantis’ WatPro water disinfection simulator with the SCADA system of the city of Toronto’s FJ Horgan Water Treatment Plant. The paper was titled:

Online disinfection monitoring at Toronto’s FJ Horgan filtration plant. Hugh Monteith, Alex Vukosavljevic, Ian Chin, Liza Ballantyne, Kevin Nyman, Mark Yendt and Bern Adams

March 2008

GPS-X Usergroup Meeting

In March, Hydromantis held its annual GPS-X User Group Meeting in Lübeck, Germany. The meeting was chaired by Oliver Schraa and Rajeev Goel. Recent research and development activities at Hydromantis were highlighted and interesting case studies and experiences were presented by GPS-X users. User presentations included:

Optimizing Nutrient Removal at Two Large WWTPs in Northern Poland. Jacek Makinia, Gdansk University of Technology

The Importance of Influent Characterisation. Omid Shafibeik, Anglian Water

A Zero-Dimensional Biofilm Model for Dynamic Simulation of Moving Bed Bioreactor Systems: Model Concepts, Peterson Matrix, and Application to a Pilot Scale Plant. Mario Plattes, CRTE

Experience with GPS-X at WWTP Domzale-Kamnik, Slovenia. Meta Levstek, JP CCN Domzale-Kamnik d.o.o.

Wastewater Treatment Plant Optimization - The Kélibia Case. Cherif Hayet, l'école nationale d'ingénieur de Tunis

Characterization of Hungarian Municipal Wastewater. István Pásztor, Kristály

Characterization of Russian Municipal Wastewater. Andrey Epov, ITT Flygt AB

The UGM was accompanied by a 2-day GPS-X training course.

Some background on Lübeck:

Lübeck was founded in 1143 as the first German city on the Baltic Sea and is a UNESCO World Heritage Site. It prospered until the 16th century as the major trading centre for northern Europe. It is famous for its beautiful 15th- and 16th-century patrician residences, public monuments (e.g. the famous Holstentor brick gate), and gothic churches. Lübeck is also known for its legendary marzipan, a confection used in chocolates and cakes.

February 2008

Paper Presentation

Hydromantis participated in the 43rd Central Canadian Symposium on Water Quality Research in Burlington, ON on February 11th and 12th by delivering a paper on dynamic modeling of the fate of endocrine disrupting hormones during wastewater treatment:

Modeling the fate of estrogenic hormones in municipal wastewater treatment. Hugh Monteith, Hank Andres, Spencer Snowling and Oliver Schraa