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Resume of Peter L. LaMontagne P.E.


Peter is an independent consultant for centrifuges since 2001 with no ties to manufactures, repair shops.  His focus is on supporting design engineers in centrifuge matters, Operator Training Programs, plant optimization and cost reduction, and application engineering for centrifuges. He advises plants on polymer evaluation and contracts, contracting out centrifuge maintenance, and auditing the residuals area.  He is a Sponsor of wastewater certification courses in numerous states. A specialty course is Centrifuge Design and Operation, for those with a more technical interest.

Other work includes advising municipalities on selling surplus centrifuges, upgrading existing centrifuges, polymer evaluation and quality control.  Several engineering firms use his services to advise them on contracts involving design, installation, procurement and startup of new centrifuges.

Mr. LaMontagne writes extensively on wastewater topics, especially centrifuges, controls and automation, and is active in the Water Environment Federation. 

Mr. LaMontagne had over 25 years of experience with Sharples/Alfa Laval. As technical Manager, he was responsible for the process development of the PM and DS series of centrifuges and the ABC backdrive control logic used at hundreds of wastewater treatment plants in the US and abroad. He has completed startup and optimization on many of the P, PM, XM, DS series of decanter centrifuges made by Alfa Laval Sharples. He led the commercial development of the first large thickening centrifuges in wastewater treatment. Developed improved proprietary torque control and dry solids centrifuge design for Alfa Laval / Sharples the principles of which remain state of the art today.

Mr. LaMontagne left Alfa Laval in 2001 on friendly terms, and has been an independent consulting engineer ever since.

EDUCATION: BS, Chemical Engineering, University of Massachusetts, Amherst Mass 

REGISTRATION: Professional Engineer in the State of Pennsylvania




* Automatic Improvements, Installing an Integrated Control System Can Improve Sludge Dewatering Performance and Cut Costs. Vol. 14, No 10 October 2002 WE&T published by the Water Environment Federation

* Dewatering Made Easy, Automated dewatering technology has come a long way. Vol. 16, No 1 January 2004 WE&T published by the Water Environment Federation

* Thrift Score. BUYING AND SELLING USED EQUIPMENT STRETCHES YOUR CAPITAL BUDGET, pp30-34, October 2004, WE&T published by the Water Environment Federation

* Degrees of Automation, Deciding where and how to automate requires careful consideration pp43-45, November, 2004, WE&T published by the Water Environment Federation 

* Polymer Power, Optimizing polymer usage can improve performance and cut costs.  Pp61-64, May 2006, WE&T, published by the Water Environment Federation

* Bidding the Polymer Contract, things to consider in drawing up a contract, Pp60-64November 2006, WE&T, published by the Water Environment Federation

* The Tools and the Talent, Giving sufficient authority and a better human-machine interface, operators can minimize dewatering costs. Pp 70-73, November 2008, WE&T, published by the Water Environment Federation

* Recruitment Tours, Tailoring plant tours to attract new hires, Pp 52-57 March 2009, WE&T, published by the Water Environment Federation 

* Polymer Ps and Qs, Implementing polymer Quality Control, February 2011, WE&T, published by the Water Environment Federation

* Polymer evaluation basics Designing an impartial and fair qualification test, May 2011, WE&T, published by the Water Environment Federation

* 24 Hours to Disaster, the creeks rising and the plant will be under water, September 2012, WE&T published by the Water Environment Foundation


The State of the Science for Automating Dewatering Processes WEF Biosolids Conference, Baltimore MD, February, 2003

Plant Operational Control Strategy, Impact on Automation, Automation Workshop,  WEFTEC, Los Angeles, 2003

Cost Effective Optimization of Centrifuges WEFTEC 2004, workshop W111, Conditioning and Dewatering: Current Practices and Innovations, New Orleans LA, 2004

Centrifuge Selection and Specification for the Clark County Water Reclamation District, Ronald Sieger, Peter Lamontagne et al WEF Biosolids Conference, Cincinnati OH, March 2006

A great Display of Efficient Centrifuge Operation  Central States Water Environmental Association,  Educational Seminar March5, 2007 David Quast, P.E., Peter LaMontagne, P.E.

Snake River WWTP�S Disposal of Surplus Equipment Profits Buyers and Seller, WEFTEC 2007, Peter LaMontagne PE, Chuck Clause, Randy Cook, Mike Bailey

Getting What You Paid For.  DCWASA's Blue Plains Wastewater Treatment Plant's Improved  Polymer Evaluation and Quality Control  WEF Biosolids Meeting 2009, Aklile Tesfaye, P.E., DEE, Manager WWT,    Peter LaMontagne P.E.

24 Hours to Disaster.  The Creek�s Rising And The Plant Will Be Under Water, WEFTEC, 2012, William Jones, Operations &Maintenance Superintendant, Swatara Township Authority, Peter LaMontagne P,E.


Lead Author WEF Manuals of Practice, MOPII, Sixth edition Chapter 33, Dewatering. (2007 publication date) 

Lead Author WEF Manuals of Practice, MOPII, Sixth edition Chapter 29, Thickening. (2008 publication date)

Contributing Author, Upgrading and Retrofitting Water and Wastewater Treatment Plants (Manual of Practice No 28) WEF, 2005

Contributing Author, EPA Design Manual, Chapter 13, sub section on Dewatering Centrifuges, 2008 revision


WEF Professional Development Committee WEF Plant Operations and Maintenance Committee


Phone: 215-348-7879
Mobile: 267-252-3283