Webinar: Case Studies—Struvite Recovery for Phosphorus Removal and Recovery at Wastewater Treatment Plants

December 6th
12:00 pm to 1:30 pm Pacific Time

Sponsored by PNCWA Emerging Technology Committee
No cost for PNCWA members, PNCWA Section members, and WEF-UPP organization employees; .1 CEUs requested; $50 for nonmembers

Struvite, or magnesium ammonium phosphate, is a crystalline material that is often formed downstream of anaerobic digestion processes, where abundant nitrogen, magnesium, and phosphorus is present and pH is raised due to CO2 stripping, which results from pumping or other turbulences. Uncontrolled struvite formation is typically viewed as a maintenance problem; until recently, as technologies have emerged that precipitate struvite in a controlled manner to recover phosphorus, allowing the plants to achieve low phosphorus limits, and simultaneously remove a fraction of the sidestream nitrogen.

This webinar highlights and provides the updates on full-scale implementations of two representative struvite recovery technologies in the Pacific Northwest, the Ostara Nutrient Recovery Technology implemented at the Clean Water Services’ wastewater treatment facilities (WWTFs) in Oregon, and the Multiform P- Recovery System implemented at the West Boise WWTF of City of Boise, Idaho.

This webinar completes the side stream webinar series started in 2015.

This webinar features the following presentations:

  • Case studies: Struvite Recovery at Durham and Rock Creek Wastewater Treatment Facilities (WWTF), OR, by Peter Schauer, Clean Water Services, OR. The presentation will discuss the history of the first struvite recovery facility in United States that was opened at the Durham WWTF in 2009, and the struvite recovery facility opened in 2012 at the Rock Creek WWTF. Updates on the recent operations will be provided.
  • Case study: Struvite Recovery at West Boise WWTF, ID, by William Benko and Ron Gearhart, City of Boise, ID. The West Boise WWTF dewaters digested sludge from the nearby Launder Street WWTF, which represents a significant phosphorus load to the West Boise WWTF. The presentation will highlight the latest operational requirements and optimization of the struvite production facility and the impacts from the 2015 startup of the enhanced biological phosphorus removal (EBPR) improvements constructed at the West Boise WWTF, as well as from Launder Street WWTF’s 2015 conversion from a chemical phosphorus removal plant to an EBPR plant.

This webinar is ideal for municipalities, utility managers, operators, and engineers who may consider or be interested in utilizing struvite recovery as a potential revenue generating vehicle to recover phosphorus, reduce sidestream phosphorus load to the plant, and allow achievement of stringent phosphorus permit limit more efficiently.

Register for webinar

Past Webinars

  • Asset Management - CMMS Aug. 11, 2016

  • Significant money is spent collecting data for utility operations, capital improvement, and customer service. But many utilities do not know what happens to data after it is collected. Do operations improve or does the data sit, under-analyzed, on utility servers? The more resources we place in collecting data, the more important it becomes to know that we are actually using that data to improve our decision making.

    • This webinar highlights the essential methods for using data effectively. Participants will learn how to optimally choose key performance indicators and run the right reports. They will take away optimized data visualization techniques and better understand how to leverage their technology to make decisions.

    • This webinar is ideal for utility managers and operators who want to better leverage utility data collection to improve processes, management, and customer service. (Presented by the PNCWA Plant Operations and Maintenance Committee) Contact David Gordon [email protected] for questions or Continue reading complete description.

  • Cyber Security for WWTP Operations and Maintenance Aug. 23, 2016 

  • Cyber-Security is an ever-increasing concern for governments, businesses, and consumers. High-profile data breaches that affect government agencies, conglomerates and millions of consumers alike indicate hackers are becoming more creative in their efforts. Historically, SCADA systems have been isolated from cyber-attacks; primarily because SCADA systems were developed in isolation of business networks. As critical infrastructures such as water systems become increasingly dependent on digital technology, those that manage these systems must be educated in the ways that computers and networks influence their operation.

    • This webinar will review the range of security technologies used to protect those systems including case studies, and will cover methods and processes that do allow for legitimate stakeholder access to data and yet provide adequate security to identify and minimize the impacts of cyber-attacks.

    • Presented by the PNCWA Plant Operations and Maintenance Committee, contact  Molly Du [email protected] for questions or Continue reading complete description.

Webinar Technical Requirements

PNCWA will provide each attendee with the link to access the webinar and call-in audio instructions. PNCWA is not responsible for technical support before, during or after the webinar. Attendees must ensure that they have the needed equipment, that it is functioning, that it is compatible with the webinar system and that they know how to use it. Refunds will be handled according to PNCWA’s current webinar refund policy and will not be issued for attendees that experience technical or equipment failures during the webinar.
PNCWA webinars are conducted using GoToWebinar. It is highly recommended that you use the following link to the GoToWebinar website to test your computers compatibility before planning to attend a webinar. To test your computer’s compatibility go to: http://support.citrixonline.com/en_US/Meeting/help_files/G2M050001?title=Join+a+Test+Session%7D
To participate in the webinar, you must have access to a computer with an internet connection AND an audio connection (EITHER phone line or VOIP connection). It is recommended that you participate from a semi-private, quite location where there will be few distractions. Below are the System Requirements recommended by GoToWebinar. You may also view their most current FAQ at http://www.gotomeeting.com/meeting/online-meeting-support

On a PC:
· Internet Explorer 9, Mozilla Firefox 34, Google Chrome 39 (JavaScript enabled) or the latest version of each web browser
· Windows XP, Windows Server 2008 or later
· Cable modem, DSL or better Internet connection (1 Mbps or faster)
· Dual-core 2.4GHz CPU or faster with 2GB or more of RAM

On a Mac:
· Safari 6, Firefox 34, Google Chrome 39 (JavaScript enabled) or the latest version of each web browser
· Mac OS X 10.8 (Mountain Lion) or newer
· Cable modem, DSL or better Internet connection (1 Mbps or faster)
· Intel processor (2GB of RAM or better)
· Participants wishing to connect to audio using VoIP a microphone and speakers. (A USB headset is recommended.)

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· Free GoToMeeting, GoToWebinar or GoToTraining app from the App Store, Google Play or Windows Store
· WiFi connection recommended for VoIP audio

Webinar Attendee Guide is available at either of these locations


PNCWA Webinar Attendee Guide

Webinar Continuing Education Units Requirements

The following guidelines apply when a webinar is approved for CEU’s

  • No partial credit will be given.
  • Attendees must pre-register and provide a valid certification number or License number.
  • Each attendee must be logged into a separate computer so that their participation may be accurately tracked.
  • In certain webinars where the CEU authority has required a proctor or attendance monitor be present, more than one individual may attend at a station and be eligible for CEUs.
  • Attendees must be logged in at the beginning and must remain logged in through the end of the session. Attendees must promptly respond to brief quizzes that appear randomly throughout the webinar.
  • After the webinar, PNCWA staff will email CEU documentation to attendees meeting the CEU requirements. Reports will also be sent to the appropriate certification boards.

Inability to complete CEU requirements due to technical difficulties will result in no CEU’s being issued.

Webinar Recordings

Webinar participants should be aware that the webinar they attend may be recorded. PNCWA holds a perpetual license to copy, distribute, make videos, DVDs, CDs, publish, reproduce the Recording, to post the Recording on its website, to sell the Recording or any copy or derivative thereof, to market and publicize the Recording, all without any fee or compensation paid or to be paid to Attendees by PNCWA.
Prohibition of Recording Statement:Recording of any sounds or visual images, and use of any recording device or medium now known, or later developed, is prohibited at all PNCWA Seminar, School, Conference or other training events unless prior written permission has been expressly granted by PNCWA.