Water Cluster
Technology Seminar
Intro REUSE
WATER
CASE HISTORY
Larry Burbach
Mazzei Injector Company, LLC
June 17, 2010
Water Reuse
• Water needs
Scarcity - out
Surface
Supplies &
Water
pacing
Aquifer Storage
supplies
worldwide
• Governments – Municipalities –
reuse/recycle no longer a choice
• New concerns – removal of
chemical contaminants,
endocrine disrupters (EDC),
pesticides, petroleum additives
Storm water recovery – high
DS1600-LF
GDT™
rain seasons,
the need
was to
Degas
capture
runoffSeparators
in the water
shed and resupply
(restore)
for PHASE II of
the
aquifer
City of
Wichita’s Aquifer
Storage and Recovery Project
(ASR-II)
June 2010
Potable standards
required
–
Aquifer Storage
need to remove all regulated
and Recovery
organic
and
inorganic
• Removal of atrazine
contaminants
–
farm
land
• Design & Test Corporate ‘Partners’
runoff
tested
high
in
o Mazzei
pestesides
o Lakos and herbacides
o Rain-for-Rent
o Fresno State University – WET Lab
City of Wichita
used MIC for
Aquifer Storage and
Recovery
(ASR)
Project
ozone injection
at the
Cheney
Facility – injectors, flash
reactors and degas equipment
with great success
 $400 million project
 Ensures stable and reliable water supply through
2050
 Takes excess water flow out of Little Arkansas
River, treats it to meet water-quality standards, and
pumps it underground into the Equus Beds acuifer
for later use
 Phase I was completed in 2006 with the capacity to
pump up to 10 million galls of water a day into the
aquifer. When Phase II is completed in 2012, that
number will jump to 40 million gallons a day.
ASR-II
AOP selected for the removal
PHASE II: During thisof
phase,
the water treatment plant will use
atrazine
membranes to treat the water and advanced oxidation to remove the
atrazine and provide disinfection so that all of the water recharged meets
the safety standards established by the Kansas Department of Health
and Environment. Both of these are proven cutting edge technologies –
but the success of phase II of this project would only be achieved if a
degassing system could be designed to work at system operating
parameters. Mazzei was selected for their proven ability to adapt their
products to specific operating conditions.
Certification Testing Was Performed at the Dublin San Ramon
Services District on Micro- and Media Filtered Water
Demonstration project
completed in CA – toSand
validate
Filtration
A the AOP process with
either membrane/micro or
sand filtration
Microfiltration
Program Design
• Air Products Halia – AOP
SMALL
FOOTPRINT
–
vs
o Very effective at organic destruction
large
storage tank o Large pressure drop across system
• Mazzei Degas System
o Remove 95% (min) of all undissolved
ozone and oxygen gases
o Mazzei System must perform at 1.5
psi influent pressure
Examples of Full-Scale HiPOx Reactors
Hypox reactors require interior
static mixing and nozzles
causing a significant pressure
drop across the system
Halia Advanced Oxidation Pilot System
Solution – Step 1
• Modify Mazzei standard product
(DS1600) – to DS1600LF
• Mazzei and Lakos engineers
redesigned degas separator for
reduced flow at 1.5 psi inlet
pressure
• Lakos manufacturing division built
prototype to be tested
Cheney installation required
engineering changes to the MIC
Mazzei Ozone Injectors & GDT Degas Separators
Wichita,
degas system
toKansas
accommodate
high supply pressures – 175psi
TM
The Mazzei GDT™ Degas Separator is
designed to remove entrained gas bubbles
from pressurized water streams.
Mazzei was asked to create a custom degas
separator to meet the performance criteria of
the ASR-II Advanced Oxidation Process (AOP).
The challenge of designing the custom degas
separator was removing gases at extremely
low operating pressures.
Prepared for oxygen service –
full penetration welds required
Contract
Requirements
Burns and
McDonald, CAS
System
validationwitness
at specifiedof
PM• and
Wichita
parameters by Engineering
test
validation
Company and City prior to
contract award
• Delivery date NLT September 2010
• Validation must be witnessed at full
flow conditions (3472 GPM)
Solution – Step 2
• Prototype delivered to WET Lab on
time for validation phase
• Rain-for-Rent contracted to
complete custom installation of
the largest system ever tested
at WET – pipes cut to fit on site
• WET Lab testing began
prototype validation – testing
design critical at full flow –
inlet and discharge head
‘visual’ measurements as well
as air flow into the water
stream and out of the degas
separator vent valve.
Figure V. Degas separator process testing set-up
The WET Lab’s capabilities
were key to our success –
precise monitoring of flow and
pressures were required by
B&C and CAS PM – all
controlled by Joe on a PDA –
data logged stored through
telemetry
DS1600LF Arriving at ICWT
Gantry allowed for safely offloading and positioning the
separator which weighed
nearly 6000 lbs.
DS1600LF Unloaded
Largest system ever tested at
the WET Lab
–
height
• Rain-for-Rent
restrictions requiredinstallation
the use of
• WET
Facilities
the water flume
channel
to–
Joe Oliphant
reduce the overall
height
of
• Height restrictions
the system insideresolution
the test
facility
Sight glass to set and monitor
influent pressure – air supply
line located on riser measured and set at .1 : 1 gas
to liquid ratio
Success!!
The initial test run of the degas
separator was successful.
-
The final test run witnessed by Burns
and McDonnell verified degas
separator performance resulting in
final approval of Mazzei’s submittal
to supply ASR-II with six custom
DS1600-LF GDT™ Degas Separators.
DS-1600 LF-A Test Data
Separator
Water. Flow
(GPM)
Separator
Inlet
(PSIG)
Gas
Removal
(%)
Target
3,472.0
1.5
97.0%
Total
Average
3,489.6
1.5
97.4%
Acknowledgments
The successful development of the
custom degas separator was due to the
teamwork and the design skills of the
engineers at Mazzei and Claude-Laval
Corporation, our partner in the
development GDT™ Degas Separator
Separator performance testing was
conducted at the Fresno State University
Water & Energy Technology (W.E.T.)
Laboratory – custom installation performed
by Rain-for-Rent.
Thank You