Annual Conference Brochure - AZ Water Association

TECHNICAL SESSIONS
4:00 - 5:00pm
Controlling Activated Sludge Inventories
Paul D. Cornejo, Arizona American Water Company
This presentation will provide an in depth analysis of solids
inventory control practices and procedures common to the
wastewater treatment industry. The pros and cons of various
sludge wasting practices and procedures will be reviewed
e.g. wasting based on a MLSS set point, F/M Ratio, and
MCRT. Participants will learn how to choose the best control
strategy for their facility, how to calculate wasting rates, and
how to implement a control strategy in order to optimize
plant performance.
TRACK 2 - GREEN TOPICS
8:00 - 8:30am
Tempe FOG to Energy Feasibility Study
David McNeil, City of Tempe
Using grant funding from the U.S. Department of Energy,
the City of Tempe, with HDR Engineering, embarked on
a study to determine the feasibility of diverting fats,
oils and grease (FOG) from its wastewater stream and
utilizing FOG as feedstock for the generation of renewable
energy. The focused FOG-to-biodiesel scope evolved to
provide Tempe with valuable information regarding FOG’s
potential for methane generation, opportunities for regional
partnerships to achieve economies of scale for energy
generation, and creative public-private partnerships for the
collection of FOG and its beneficial use for the generation
of renewable energy. Tempe and HDR will provide the
results of this feasibility study and discuss Tempe’s plans for
implementation.
8:30 - 9:00am
Assessing Environmental Impacts for Making Informed
Decisions on Greener Processes
Zhuang Liu, Carollo Engineers
With the development of environmental awareness, utilities
are showing increasing interests in making sustainable
decisions. More sustainability studies start to use life
cycle assessment (LCA) to provide a cradle-to-grave
evaluation and a comprehensive view on environmental
impacts beyond simply carbon footprint analysis or energy
performance evaluation. The general LCA methodology
and a recent completed City of Phoenix case study about
lowering energy and chemical usages for RO concentrate
management will be presented. Learn how to improve the
communication of the abstract LCA results with general
public by relating the impacts to average American’s
annual contribution and using preset screening matrix. The
information will help the utility to make informed decisions
with sustainability considerations.
9:00 - 9:30am
Automation for Energy Operations Optimization in
Water Distribution Systems
Julie Inman, Black & Veatch
Energy management and operations optimization provide
a significant positive impact for utilities as well as the
environment. These impacts include: Minimized facility
operating costs; Reduced energy consumption to help
long-term sustainability of energy resources; Sustainable
decisions in facility expansions, upgrades and retrofits;
Reduced carbon emissions as a result of less energy
consumption This presentation will discuss optimization
drivers, identify key strategies for water distribution
optimization and offer approaches utilizing SCADA
system and other software applications to implement the
strategies. Attendees will gain an understanding of different
optimization approaches and benefits based on utility case
studies. The approaches reviewed in the utility examples
vary from simple low cost solutions to highly automated
operations and energy management software and can be
applied to large or small utilities.
18
9:30 - 10:00am
Sustainable Organic and Nitrogen Removal via
Microbial Fuel Cells
Caitlyn Butler, Arizona State University
With the cost of energy increasing, lower energy,
decentralized treatment processes are becoming more
attractive. This is particularly true for agricultural waste
streams where point-of-production treatment could alleviate
eutrophication of the receiving waters. We propose using
amicrobial fuel cell (MFC) for decentralized treatment
of agricultural wastewaters, yielding electricity. A three
chamber MFC was constructed, including a BOD-oxidzing
anode, a nitrification chamber, and a denitrifying cathode.
During the preliminary operation, BOD fluxes of 18 mg/L-d
in the anode, nitrification fluxes of 2.3 mg-N/L-d in the
intermediate chamber, and denitrification fluxes of 1.9
mg-N/L-d in the cathode were observed. A maximum
power production of 2.5 W/m3 was achieved. The power
generated from the MFC has potential to sustain or off-set
the energy requirements of treatment.
10:00 - 10:30am
Water Loss Control
C. Scott McElroy, M.E. Simpson Co., Inc.
This class will teach you the benefits of a Water Audit based
on the American Water Works Association’s standards. Plus,
hear about the benefits of having a Meter Testing and Leak
Detection program and the cost savings of these programs.
TRACK 2 - NEW FACILITIES
1:30 - 2:00pm
Commissioning of Deer Valley WTP – a 65 MGD
Municipal Water Treatment Plant
Yang Zhang, Wilson Engineers
The reconstruction of the East Basins of Deer Valley WTP
is completed in 2010. The City retained the services of
Wilson Engineers to support the commissioning of the Deer
Valley WTP East Basins. The plant commissioning started in
November 2010 with the East Basins and the existing West
Basins in operation at 15 MGD each. This presentation will
focus on the detail of commissioning and also highlight
process optimization measures during commissioning.
2:00 - 2:30pm
Construction and Start-up of the City of Glendale Zone
4 Groundwater Treatment Plant
Ryan Rhoades, CH2M HILL
The City of Glendale’s 10 MGD Zone 4 groundwater
treatment plant began construction in 2009 and will
enter start-up and operation in January 2011. The design
incorporates five wells with differing groundwater quality
but generally has high arsenic and nitrate with elevated
sulfate and chloride. The groundwater treatment process
is ion exchange with special consideration on residuals
concentrations and handling. Operational strategies of
blending raw and treated groundwater with treated surface
water will provide maximum flexibility and optimization for
treatment performance and operability. The presentation
will also cover the start-up challenges and commissioning
strategies to demonstrate effectiveness of the ion exchange
treatment system, achieve regulatory approval, and maintain
operations of the existing surface water treatment plant.
2:30 - 3:00pm
Sustainability in the Design and Construction of a New
18 Mgd Water Treatment Plant
Jack Bryck, ARCADIS / Malcolm Pirnie, Inc.
The Consolidated Mutual Water Company (CMWC), a not-forprofit
water utility serving 50,000 customers in the City of
Lakewood CO, delivered by CM@Risk a new 18 MGD water
treatment plant with low pressure membrane filtration
placed in operation October 2009. The plant design lead
by the Malcolm Pirnie Phoenix office replaced a sixty year
old 10 MGD plant. Sustainability was critical element in
the plan. The commonly held definition for sustainability is
“development that meets the needs of the present without
compromising the ability for future generations to meet
their own needs (Brundtland Commission, 1987)”.
TRACK 2 -
DESIGN STANDARDS & TOOLS
3:30 - 4:00pm
Water and Wastewater Standards for a
Pleasant Surprise
John B. Richardson, Carollo Engineers
The presentation will focus on the definition of the City’s
DSG, the design workshop process, reference design
documents, the document review process as well as
discuss the process used to individual portions of each of
the Volumes 1 through 3 as follows: Volume 1 – General
Standards and Guidelines Permitting requirements, project
submittal requirements, pre-design requirements, bid phase,
construction phase, operation and maintenance manuals,
as-built drawings, civil design, geotechnical design,
structural design, corrosion control, chemical facilities,
electrical requirements, instrumentation and control,
heating, ventilation and air conditioning. Volume 2 – Water
Standards and Guidelines Onsite water piping, potable
water transmission pipelines, water pump stations, pressure
reducing stations, water storage reservoirs, water production
wells Volume 3 – Wastewater Standards and Guidelines
Large diameter wastewater interceptors, wastewater lift
stations, reclaimed water pipelines, reclaimed water storage
reservoirs, reclaimed water pump stations, recharge facilities.
4:00 - 4:30pm
Building Information Model (BIM): It’s Role in WWTP
Design/Build Projects
Dan Miller, PCL Construction
During the design phase and construction of this project,
Water Works Engineers and PCL Construction utilized BIM
technology together as a means to assist and refine the
design effort and to facilitate LEAN Construction Methods.
This BIM model included structural elements, mechanical
processes and underground utilities for the entire project
campus. We will present this BIM model of the facility and
discuss and illustrate how its use proved to be indispensable
to the rapid and efficient design and construction required
for this project along with an open discussion on what
benefits & post construction use Owners may have with the
BIM product.
4:30 - 5:00pm
Picturing Project Success with 3-D Design Tools
Jim Detweiler, Carollo Engineers
This presentation will illustrate how the use of 3-D design
tools helped to make the Ak-Chin Indian Community
Water and Wastewater Capital Improvements Project
both successful and internationally awarded. Effective
integration of 3-D design tools accelerated an otherwise
stringent design schedule, improved the overall quality of
the final design, and enabled Community stakeholders
and operations staff to better envision project elements in
order to efficiently gain their acceptance and endorsement.
Unique project circumstances made excecuting these goals
particularly important.
TRACK 3 - WATER DISTRIBUTION
8:00 - 8:30am
Distribution System Application of Surface Aeration
for TTHM Reduction
Jeanne M. Jensen, DSWA, a Jacobs Company
The Cities of Phoenix and Mesa are planning full-scale
distribution system testing of surface aeration, which is a
new application of the existing surface aerator technology.
Since surface aerators have historically been used in
wastewater applications, obtaining NSF certification was
AZ Water Association 84th Annual Conference & Exhibition Arizona’s Water Future is Here!