Engineers' Society of Western Pennsylvania


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“Best of IWC”

Webinar Series

The Best of IWC Webinar Series is a great way to preview the high quality technical content presented at the International Water Conference®.

  • Attendees can earn 1 PDH credit from the comfort of their own computer.
  • It is FREE to attend, but registration is required for pdh certification.  Multiple viewers on one computer will be required to sign in on the required form distributed at the webinar.

Note: Individual NY P.E.’s requesting the 1 PDH must sign into the webinar via the link provided when registered and are also required to sign a login sheet after completion of the webinar. NY P.E.’s attending the webinar as a group require only one person to register for the webinar. That person is the room moderator for the group and must sign into the webinar via the link provided when registered. Each attendee in the group will be required to sign in and out on the login sheet. The times and signatures are verified by the room moderator.


Previous Webinars

Topic:  Sustainability

September, 2019

Bridget Finnegan and Michael Pudvay, P.E., Veolia Water Technologies, Inc., Pittsburgh, PA; John He, P.E., Veolia Water Technologies, Inc., Cary, NC; Lucas Davis, P.E., Kiewit Engineering Group, Inc., Lenexa, KS

IWC 18-18: Sustainable Alternatives to Power Plant Make-up Water: Using Treated Municipal Wastewater

Using treated municipal effluent as make-up water for power plants presents obvious benefits, including cost reduction and sustainability. The methods and benefits of using treated municipal effluent are compared in this paper for three separate power plants in North America. Each power plant includes a nitrification stage and a solids removal process to treat the municipal effluent before it can be used. However, the stability of the source water and the environmental benefits outweigh the treatment costs.

Brad Buecker and Ray Post, P.E., ChemTreat, Richmond, VA

IWC 18-17: Grey Water for Cooling Tower Makeup: Mission Possible

By choice or mandate, design personnel for many new industrial plants are selecting alternatives to fresh water for plant makeup.  An increasingly common choice is effluent from a publicly owned treatment works (POTW), commonly known as municipal wastewater treatment plant effluent (grey water).  These waters typically contain elevated concentrations of ammonia, nitrate, organics, phosphate, and suspended solids, all of which, if left untreated, can lead to a nightmare scenario of microbiological fouling in cooling towers and cooling systems.  But with proper pre-treatment and cooling water chemical treatment, these waters can successfully be utilized for cooling water makeup.  Methods to prepare this water for use in cooling systems include biological treatment of the makeup, consistent and reliable biocide feed to the recirculating water, and use of all-polymer treatment for scale/corrosion control in place of the phosphate/phosphonate programs of the past.  The latter has already gained impetus due to concerns about the environmental impacts of phosphorus discharge to lakes and rivers.


Topic:  Industrial Wastewater

August, 2019

Greg Wood, i2m LLC, Raleigh, NC; Sreenath Kariveti, Mann+Hummel USA Inc., Raleigh, NC

IWC 18-58: Ceramic Hollow Fiber Membrane Technology for Industrial Wastewater Treatment in Recycle/Reuse Applications

Crossflow membrane technology has gained more interest recently with an important focus in treating high total suspended solids (TSS) concentration and oily wastewater applications to recover the valuable products and reduce total waste volume. Ceramic Hollow Fiber Membranes (CHFM) show the advantage of a high volumetric filtration area and high flux rates compared to other ceramic membranes with different geometric membrane designs. CHFM’s performance parameters resulting from pilot tests are given with respect to the effect of membrane pore size, crossflow velocity, transmembrane pressure, the separation characteristics and the cleaning efficiency while achieving highest solids concentrations (>10%) and stable operational flux conditions. The present study is focused on CHFM’s pilot tests with Microfiltration (MF) and Ultrafiltration (UF) membrane pore sizes (30-130nm) are developed and tested with three different industrial wastewater qualities and it shows significant filtration performance advantages and huge potential for cost savings in terms of total cost of solution. The first application deals with metal finishing industry wastewater filtration of high organic suspended solids with oily compounds and produce reusable clean water for further reusing in the production process with further treatment. The CHFM filtration performance shows high permeate quality (turbidity <1NTU) and stable filtration flux in operation. CHFM’s MF and UF membranes demonstrate flux values of 100-340LMH while concentrating wastewater from 1.2% to >11% solids thereby reducing total wastewater volume. In the second application, the CHFM’s are tested in algae dewatering application. During the filtration performance tests using MF and UF membranes, a stable flux with no in increase in TMP as concentration increased further. The different pore size membranes fluxes range from 150-250 LMH with retentate microalgae TSS concentration factor of 30x. The TSS results show a significant pre-concentration of algae from 0.15% to a dry weight percentage of 5%. The third application is dewatering of an anaerobic digester biomass wastewater using microfiltration and ultrafiltration CHFM’s. The feed wastewater stream is highly organic (COD~10,000ppm) with TSS ~ 1.5%. The crossflow filtration of 80nm and 30nm shows stable flux performance in the range of 100-130 LMH with high concentrations of biomass up to TSS >8%. The filtration performance parameters resulting from experimental investigations show the cleaning efficiency of the newly developed ceramic hollow fiber membranes compared to conventional dewatering technologies.

Rebeccah Chapman, Frontier Water Systems, Salt Lake City, Utah; Luke Halverson and Logan Terheggen, Frontier Water Systems, Atlanta, GA

IWC 18-59: Overcoming Challenges in Biological Treatment of Selenium Containing Wastewaters by Advancements in Bioreactor Design

This paper covers engineering advancements that have been made in bioreactor design for selenium treatment which overcome the challenges associated with conventional bioreactor design. Specifically, a two-stage approach has been developed to allow for a smaller footprint, prefabricated and modular bioreactor design suitable for a wide variety of water treatment applications. Several case studies support motivations behind the reactor design, exemplify treatment capabilities, and show versatility in treatment applications.


Topic:  Water Projects

July, 2019

Russell Huffmyer, McKim & Creed, Sewickley, PA

IWC 18-05: Utilizing Progressive Design-Build to Efficiently Complete Projects in the Upstream Oil & Gas Sector

The upstream O&G sector utilizes a significant amount of water to drill and develop their wells and generates a significant amount of brine wastewater. In some industries infrastructure projects, such as water & wastewater pipelines and facilities, are developed utilizing the traditional design-bid-build project delivery model. The Design-Bid-Build concept, by its nature, results in extended delivery schedules and higher costs because of its linear progress and losing the opportunity for the constructors, and equipment suppliers to provide input into the design. In contrast, recent projects have shown that the design-build delivery method allows for the engineer to work closely with the Owner from early in the project to develop expectations and clearly define successful project outcomes, which in turn provides a higher probability of achieving successful project execution.

Michael Soller, P.E., DBIA, Josh Thomas, P.E., and Ben Klick, E.I., Bowen Engineering Corporation, Indianapolis, IN

IWC 18-06: With the Chemistry Set, What’s Next? A Case Study to Deliver a Fast-Tracked EPC Industrial Wastewater Project

The key to complete a water or wastewater project is to understand the influent and effluent chemistry and agree on the treatment process flow sheet. Significant time is sometimes required to achieve stakeholder agreement on an optimized treatment scheme which can ultimately delay the start of detailed design and construction in the field. These delays can increase the design cost, and the construction complexity and cost due to overall schedule compression because the project end date does not change.

Group Log In Sheets

Topic:  Mining

June, 2019

Mohan Badami, Keith Benson, Kashi Banerjee, and Charles Blumenschein, Veolia Water Technologies, Moon Township, PA

IWC 18-38: Three Years of Full-Scale Water Treatment Plant Operational Experience from Rare Earth Mining Facility

A centralized water treatment plant was built in 2012 in a rare earth mining facility in the Southwestern part of the United States to treat well water and water recycled from various systems. The objective of the treatment plant was to produce demineralized water with conductivity < 10 µs/cm for boiler feed and other plant areas. This paper will describe and discuss various treatment steps and will present three years of operational data.

Shannon Brown and John Pugh, Bayer U.S.-Crop Science, Creve Coeur, MO; Molly Prickett, Bayer U.S.-Crop Science, Soda Springs, ID; Matthew Wright, NewFields, Missoula, MT

IWC 18-40: Learnings from Phased Installation of a Permeable Reactive Barrier for Mine Water Treatment

Weathering oxidation can enable release of oxidized selenium compounds from pyrite and sphalerite laden overburden into surface runoff water and groundwater. The remote nature inherent to mining operations can preclude access to utilities and infrastructure necessary for many water treatment systems. Therefore, passive biotreatment utilizing naturally occurring endemic microbes supported by emplacement of organic matter within an engineered interception and treatment system was selected. Phased installation of this permeable reactive barrier afforded opportunities for optimization.

Group Log-In Sheet


Historical Papers

As an offering of the high quality technical content presented at the IWC, please review these historical  papers from IWC-past.  Technical Papers from more recent conferences, and our archived history, can be found here.  Check back often, as content will be updated on a regular basis.

Please click on title to download paper

G.L. Dimotsis, Sybron Chemicals Inc., Birmingham, NJ
F.X. McGarvey, Sybron Chemicals Inc., Birmingham, NJ


IWC 09-36: Steam Generation Using Produced Water: Lessons Learned
Martin R. Godfrey, Nalco Company, Naperville, Illinois
Keywords: Produced Water, OTSG, Evaporator, Steam Generation, SAGD

Prepared Discussion for IWC 09-36:
Discusser: Melonie Myszczyszyn, CNRL Facilities Engineer, Alberta, Canada


IWC 07-24:  Equipment Design Considerations for Lime and Ion Exchange Treatment of Produced Water in Heavy Oil Extraction
Robert Holloway,  Holloway Associates, Etobicoke, Ontario, Canada
Gordon Page, Page Technology Ltd., Calgary, Alberta, Canada

Prepared Discussion for IWC 07-24:
John E. Fair, P.Eng., Fair Canada Engineering Ltd., Calgary, Alberta

Author’s Closure for IWC 07-24:
Robert Holloway,  Holloway Associates, Etobicoke, Ontario, Canada
Gordon Page, Page Technology Ltd., Calgary, Alberta, Canada