1. science
2. ecology
3. waste management
4. recycling

19th Annual Water Reuse & Desalination Research Conference
Monday, May 5, 2015
7:45 a.m. –
3:00 p.m.
7:45 a.m. –
8:30 a.m.
Registration Open
Continental Breakfast
8:30 a.m. –
9:45 a.m.
Opening Session
9:45 a.m. –
10:15 a.m.
Networking Break
9:45 a.m. –
10:15 a.m.
Poster Presentations
A1
Ensuring the Safety of
Direct Potable Reuse
10:15 a.m. –
10:45 a.m.
Achieving Reliability in Potable
Reuse through Enhanced
Treatment and Monitoring
Pilot Scale Operation Does not Always
Reflect Full Scale Implementation
From Groundwater Recharge to
Surface Water Augmentation, and
Direct Potable Reuse in California
Treatment Options for Water Reuse in the
Food Industry: A Bench-Scale Study of
Leafy-Green Washwater
Quantitative Relative Risk Assessments
for Direct Potable Reuse
Pilot Test of Nanofiltration Membranes for
a Novel Approach to Water Reclamation
What Monitoring Tools do we Need
to Ensure the Safety of Direct
Potable Reuse?
Integrated UV Oxidation and Ceramic
Membrane Treatment for Challenging
Waters
Brian Pecson, Trussell
Technologies
10:45 a.m. –
11:15 a.m.
Brian Bernados, California State
Water Resources Control Board
11:15 a.m. –
11:45 a.m.
Margie Nellor, Nellor Environmental
Associates, Inc.
11:45 a.m. –
12:15 p.m.
Allegra da Silva, CDM Smith
12:15 p.m. –
1:15 p.m.
B1
Innovative
Treatment Technologies
Diane Gatza, West Basin Municipal
Water District
ShihChi Weng, Johns Hopkins University
Robert McCandless, Brown and Caldwell
Josh Alvey, University of Alaska,
Anchorage
Awards Luncheon and Subscriber Meeting
Conference Agenda | Monday, May 5
1
Monday, May 5, 2015
A2
DPR Operations
and Water Quality
1:15 p.m. –
1:45 p.m.
Readying Operations for Direct Potable
Reuse
Troy Walker, Haze and Sawyer
1:45 p.m. –
2:15 p.m.
B2
Reuse Planning
and Case Studies
Achieve Increased Production Reliability
and Production Capacity by up Rating the
Recycled Water Filtration
Jessica Zadeh, South Bay Water
Recycling and Gordon Williams, Trussell
Technologies
Real-time and Online Integrity
Monitoring of Reverse Osmosis
Membranes for Direct Potable Reuse
Applications
Pilot Testing El Paso's Advanced Purified
Water Treatment Plant
Evaluation of Source Water Control
Options and the Impact of Selected
Strategies on Direct Potable Reuse
Evolution of Reuse Planning in the City of
Riverside
Odorous Compounds: A Potential Barrier
to Potable Reuse?
Expanding Tucson's Recycled Water
Program from a Foundation of Past Success
Caroline Russell, ARCADIS
Arun Subramani, MWH
2:15 p.m. –
2:45 p.m.
Alan Rimer, Black & Veatch
2:45 p.m. –
3:15 p.m.
Florence Bonvin, University of
California, Berkeley
3:15 p.m. –
3:45 p.m.
3:15 p.m. –
3:45 p.m.
Steve Friedman, HDR
Corin Marron, ARCADIS and Jeff Biggs,
City of Tucson Water Department
Networking Break
Poster Presentations
Conference Agenda | Monday, May 5
2
Monday, May 5, 2015
A3
Panel Discussion:
Critical Control Points
for Potable Reuse
3:45 p.m. –
4:15 p.m.
Troy Walker, Hazen and Sawyer
Dave MacNevin, Tetra Tech
4:15 p.m. –
4:45 p.m.
4:45 p.m. –
5:15 p.m.
Mehul Patel, Orange County Water District
Andrew Salveson, Carollo Engineers
Roshanak Aflaki, City of Los Angeles
Department of Public Works
B3
Low Energy
Treatment Schemes
Development and Testing of a Novel LowEnergy Wastewater Treatment Process for
Producing High-Quality Product Water
Eric Marchand, University of Nevada,
Reno
Impacts of NPXpress Process on Energy,
Nitrous Oxide Emissions, and Microbial
Ecology in Wastewater Treatment Plants
Yunjie Tu, American Water
Emerging Technologies, Energy Use, and
Approaches for Advanced Oxidation and
Disinfection
Nicola Fontaine, Carollo Engineers
5:30 p.m. –
7:00 p.m.
Welcome Reception
Conference Agenda | Monday, May 5
3
Tuesday, May 6, 2015
7:45 a.m. –
2:30 p.m.
7:45 a.m. –
8:30 a.m.
Registration Open
Continental Breakfast
A4
Treatment for
Indirect Potable Reuse
8:30 a.m. –
9:00 a.m.
Comparison of Two Disinfection
Strategies Prior to Soil Aquifer
Treatment for Potable Reuse
Reymundo Trejo, Upper San Gabriel
Valley Municipal Water District and
Shane Trussell, Trussell Technologies
9:00 a.m. –
9:30 a.m.
10:00 a.m. –
10:30 a.m.
Eric Nelson, Sanitation Districts of Los
Angeles County
Rejection of N-nitrosamines and their
Precursors during Reverse Osmosis
Membrane Treatment in Water
Reclamation Plants
Treatment Sustainability as a Tool in
Water Reuse Treatment Train
Configuration
Predicting DBP Formation Using
Hybrid QM/MM Computational
Methods
Keel Robinson, Xylem
10:00 a.m. –
10:30 a.m.
Chlorinated and Brominated Disinfection
Byproducts of Selected Pharmaceuticals and
Personal Care Products in Secondary and
Tertiary Treated Wastewaters from
Southern California
A Full-Scale Demonstration Study
Comparing UV/Chlorine and UV/H2O2
for the Treatment of 1,4-Dioxane in
Potable Reuse
Alan Royce, Trojan Technologies
9:30 a.m. –
10:00 a.m.
B4
Disinfection
Byproducts
Haruka Takeuchi, Kyoto University
Harry Ridgway, AquaMem Scientific
Consultants
Networking Break
Poster Presentations
Conference Agenda | Tuesday, May 6
4
Tuesday, May 6, 2015
A5
Novel Technologies
for Potable Reuse
10:30 a.m. –
11:00 a.m.
Removing Trace Organic Contaminants
Using Biofiltration in Potable Reuse
Systems
Lessons Learned from UV System
Performance Audits for Reuse Applications
Role of Chlorine Radical Species in
Advanced Oxidation Process Treatment
of Wastewaters for Direct or Indirect
Potable Reuse
Occurrence of Legionella in Reclaimed
Water
Forward Osmosis Membrane
Bioreactor Performance for
Wastewater Treatment Applications
Next Generation Sequencing Reveals
Potential Surrogates for Performance
Monitoring of Graywater Recycling Systems
Peroxone Mineralization of NonBiodegradable Organics for Direct
Potable Water Reuse
Disinfection and Regrowth of Model
Pathogens in a Graywater Reuse Treatment
System
Marco Velarde, Southern Nevada
Water Authority
11:00 a.m. –
11:30 a.m.
B5
Pathogens and
Disinfection
Traci Brooks, Carollo Engineers
Mark LeChevallier, American Water
Stephen Mezyk, California State
University at Long Beach
11:30 a.m. –
12:00 p.m.
Ally Freitas, University of Nevada,
Reno
12:00 p.m. –
12:30 p.m.
Tingting Wu, University of Alabama,
Huntsville
12:30 p.m. –
1:30 p.m.
Brian Zimmerman, U.S. Environmental
Protection Agency
Susan De Long, Colorado State
University
Luncheon Presentation – Update Since DPR: A Path Forward
George Tchobanoglous, University of California, Davis
Conference Agenda | Tuesday, May 6
5
Tuesday, May 6, 2015
A6
Development of a
Framework for Direct
Potable Reuse Guidelines
B6
Desalination
Technologies and
Concentrate Management
Results of the NWRI/WateReuse
Association Expert Panel
1:30 p.m. –
2:00 p.m.
Jeff Mosher, National Water Research
Institute
Justin Mattingly, WateReuse Research
Foundation
2:00 p.m. –
2:30 p.m.
George Tchobanoglous, University of
California, Davis
Andrew Salveson, Carollo Engineers
2:30 p.m. –
3:00 p.m.
Jim Crook, Consultant
Adam Olivieri, EOA, Inc.
Application of Electrodialysis for ByProducts Recovery from Saline Brine to
Balance Costs of Zero Discharge
Elisabeth Vaudevire, PWN Technologies
Improved Bubble Column Desalination and
Sterilization
Muhammad Shahid, University of New South
Wales, Australia
Sweeping Gas Membrane Distillation in Flat
Sheet Membrane Contactor
Vasiliki Karanikola, University of Arizona
Shane Trussell, Trussell Technologies
Joe Cotruvo, Joseph Cotruvo & Associates
Ellen McDonald, Alan Plummer
Associates
3:00 p.m. –
3:30 p.m.
3:00 p.m. –
3:30 p.m.
3:30 p.m. –
4:45 p.m.
4:45 p.m. –
5:00 p.m.
Networking Break
Poster Presentations
Closing Research Needs Plenary Session
Conference Summary and Closing Remarks
Melissa Meeker, Executive Director, WateReuse Research Foundation
Conference Agenda | Tuesday, May 6
6
Poster Presentations
Are Ceramic Membranes Better Choice
for Treating Highly Challenging Feed
Water
Ufuk Erdal, CH2M HILL
This poster will summarize a detailed pilot
testing study results for using a new ceramic
membrane system and treating poor quality
secondary effluent generated at South Orange
County Wastewater Agency's J.B. Latham
Wastewater Treatment Plant. The pilot testing
results are highly valuable for agencies who are
considering using membranes to produce
reclaimed water.
Challenges for Large Scale Application
of Microbial Fuel Cell for Wastewater
Treatment Prior Irrigation Water
Reuse
Carole Abourached, Oregon State University
Microbial Fuel Cell (MFC) technology treats
wastewater and generates electricity
simultaneously. The potential economic returns
from using MFC as a pre-irrigation treatment
method for wastewater was evaluated. The
analysis showed that MFC is economically
feasible and can reduce water and energy
shortages which simultaneously increase food
security.
Deep Well Placement of Biosolids with
Other Waste Water Residuals
Depth Filtration with Microfiber Cloth
Enhances Performance of
Ultrafiltration as Pretreatment to
Seawater Desalination Systems
Terence Reid, Aqua-Aerobic Systems
This study was conducted to determine whether
depth filtration with microfiber cloth would
improve UF pretreatment used for seawater
desalination. The study found that the microfiber
filter allowed the system to achieve a lower
effluent SDI, use less power, handle higher solids
more effectively, and incur less maintenance and
downtime.
Effects of Pre-Ozonation on Organic
Fouling Reduction in Nanofiltration
(NF) Brine
Minkyu Park, University of Arizona
The effects of pre-ozonation on reduction in
organic fouling potential were investigated. As a
result, it was found that ozonation of brine
significantly reduces organic fouling potential.
Hence, ozonation can be a promising pretreatment technique for membrane process using
water containing highly concentrated organic
foulants such as brine.
Novel Photothermal Nanocomposite
Membranes for Direct Solar Membrane
Distillation
Diane Jones, City of Los Angeles
Jinjian Wu, Rice University
This presentation will deliver important
information about the innovative use of biosolids
and wastewater treatment brine and tertiary
effluent at the Terminal Island Renewable Energy
(TIRE) Project. Information on project successes,
site selection, site geology, outreach program,
technology, project findings and next steps will
be provided.
Novel photothermal nanocomposite membranes
that generate heat locally at the membrane
surface were fabricated to improve the efficiency
of direct solar membrane distillation processes.
Photothermal nanoparticles (carbon black and
SiO2/Au nanoshells) were coated on membrane
surface via physical/chemical interactions and
found to effectively improve membrane
production under simulated sunlight conditions.
Poster Presentations
7
Optimization of Ozone-Biological
Activated Carbon Treatment for
Potable Reuse Applications
Ashley Selvy, University of Nevada, Las Vegas
A study was performed to characterize the
performance of ozone and biological activated
carbon (BAC) treatment as a potential potable
reuse treatment train. This poster will highlight
important data gathered throughout the study
and conclusions based on the applicability of this
type of treatment for potable reuse applications.
Optochemically-Realistic Greywater:
Synthetic Water Matrices for
Characterization of Direct
Photochemical Greywater Recycling
Vivek Rao, University of California, Berkeley
We present optochemically realistic formulations
for synthetic greywaters, appropriate for use in
characterizing photochemical treatment
processes.
Progress Towards Indirect Potable
Reuse in California: Lessons Learned
from Early Adopters
Kristal Burry, University of Melbourne
This project has sought to understand the
broader socio-political factors that have led to the
development of indirect potable reuse projects in
California. The outcome of this study will aid
decision makers in identifying key thematic
indictors to improve the targeted process of
developing indirect potable reuse.
Regional Stormwater Capture and
Reuse for Upper Newport Bay
Estuarine Resource Protection and
Aquifer Recharge, Newport Beach, CA
John Dodge, Daniel B. Stephens & Associates, Inc.
Multiple methods for routine capture of 4,000
acre-feet of stormwater per storm event are
being evaluated with collaboration from major
stakeholders to eliminate continual discharge and
loading to Upper Newport Bay. Captured water
would be recharged to regional aquifers by LID
and Orange County Water District's Groundwater
Replenishment System.
Using Carbon Adsorbents to Remove
Perfluoroalkyl Acids in Potable Reuse
Systems
Mandu Ime Inyang, Las Vegas Valley Water
District
Perfluoroalkyl acids (PFAA) are a persistent and
potentially toxic group of chemicals whose
presence is increasingly detected in drinking
water and potable reuse systems. In this work,
bench-and pilot-scale tests were conducted to
investigate the performance of three types of
carbon adsorbents at removing PFAA from
different water matrices.
Poster Presentations
8
Water Savings, Reliability & Readiness
via Satellite Reclamation & Reuse
Jonathan Lanciani, Sustainable Water
Satellite or on-site water reclamation provides a
number of operational and economic benefits for
bulk water users by localizing an inexpensive
source of clean water near end-use applications.
Beyond potential energy and infrastructure
savings through the elimination of large
reclaimed water distribution networks, satellite
reclamation provides greater water security
related to drought and municipal service
disruption. Additionally, satellite water
reclamation allows greater customization of
effluent water quality tailored to specific endusers on-site, which enables the optimization of
process engineering and overall system
operational performance.
Water Use by Sector: An Analysis of
FracFocus and USGS Water Use Data
Michael Nickolaus, Ground Water Protection
Council
This study is a comparative analysis of water
usage in three consumptive use categories
(Irrigation, Public Supply and Hydraulic
Fracturing) for a three state area (Texas,
Pennsylvania and North Dakota). The study was
designed to evaluate the relative use of water
over different geographic scales and compare
states with and without substantial reuse of
water for hydraulic fracturing.
Poster Presentations
9