Impact of Membrane Technology in Southern California

Report
Impact of Membrane
Technology in Southern
California
Craig R. Bartels, PhD
Hydranautics
1
•Founded in 1963, RO since 1970
•Purchased by Nitto Denko 1987
•Floor Space 160,000 ft2
16,000 m2
•Facility 14 acres
•Employees ~430
2
2/ 15
Corporate Headquarters in Oceanside, CA
R&D / QA Laboratories
Manufacturing
Administration / Logistics
3
Global Customer Support Worldwide
UAE
Algeria
4
Shanghai
3 Manufacturing facilities ensure prompt deliveries.
International Presence
Seawater RO
Wastewater RO
5
5
Desalination Growth: Installed
Capacity, 1980 – 2010 (cumulative)
1,800,000
8x40”
Spiral Elements
Typical Life:
3-6 years
6
Growth of the RO Business in Southern
California Region
• Saline Groundwater Treatment for Drinking Water
• Wastewater Treatment for Industrial Reuse
• Wastewater Treatment for High Purity Water in the
Power Industry
• Treatment of Colored Water by NF for Potable Use
• Treatment of Wastewater for Recycling
• Treatment of Wastewater for Agricultural and Golf
Courses
• Treatment of River Water for Beverage Industry
• Wastewater Treatment for Indirect Potable Reuse
• Seawater Water Treatment for Potable Water
7
Membrane Treatment Plants in
the San Diego Area
HYDRANAUTICS
MISSION BASIN BWRO
CARLSBAD WWRO
*CARLSBAD SWRO
PALOMAR ENERGY WWRO
STONE BREWERY MBR/RO
ELECTRONICS CO WWRO
NORTH CITY WWRO
FUTURE
SEAWATER
WASTEWATER
BRACKISH WATER
SWEETWATER BWRO
8
Courtesy Google Maps 2012
Northern San Diego, Orange & LA Counties
INDUSTRIAL BWRO
WEST
BASIN
SWRO & WWRO
REFINERY BWRO
*HUNTINGTON BEACH SWRO
ORANGE COUNTY WWRO
IRVINE RANCH GWRO
*DANA POINTSWRO
FUTURE
CAMP PENDLETON BWRO
SEAWATER
WASTEWATER
INDUSTRIAL PLANT BWRO
CATALINA ISL SWRO
BRACKISH WATER
HYDRANAUTICS
Courtesy Google Maps 2012
9
Sources of Water for Orange County
• Groundwater (OCWD) provides up to
66% of the water used in North and
Central Orange County
– Groundwater is pumped from
wells to producers (Cities and
Agencies)
– Groundwater basin is recharged
by the Santa Ana River, rain
water, imported water and
recycled water
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72 MGD OCWD WWTP for IPR and
Seawater Intrusion Barrier
• 72 mgd of treated water
• 14 Trains + 1 Standby
• 15700 spiral wound
elements
• 85% Recovery of
wastewater
Parameter
pH
Electrical Conductivity
Ammonia Nitrogen
Chloride
Fluoride
Nitrite Nitrogen
Sodium
Total Coliform
Total Dissolved Solids
Total Organic
Carbon
11
Turbidity
Plant Influent
7.4
1820 um/cm
30.5 mg/L
226 mg/L
0.96 mg/L
0.894 mg/L
222 mg/L
800,000 MPN /
100 ml
962 mg/L
Product
7.2
51.1 um/cm
1.4 mg/L
5.4 mg/L
0.13 mg/L
0.045 mg/L
6.1 mg/L
<2 MPN /
100 ml
15 mg/L
16 mg/L
0.25 mg/L
1.8 NTU
Seawater Pilot – Encina Power Station
TDS - 33 to 34 ppt
Turbidity – 1 to 3
(spikes to 24 NTU)
Seawater Temp – 8 to 25 C
50 mgd RO Facility
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Encina Seawater RO Pilot Testing
•
•
•
•
•
2 pressure vessels in series
4 elements / vessel
Permeate flow = 18-22 gpm
Flux = 8 – 10 gfd
Recovery = 50%
Feed pressure = 860 psi at 26C
Feed pressure = 803 psi at 26C
Perm TDS = 288 ppm
Perm TDS = 165 ppm
Perm Boron = 1.5 ppm at pH 7.6
Perm Boron = 0.74 ppm at pH 7.6
2003
13
Saving 2300 kWhr per day
2010
Mission Basin Desalter in Oceanside
• Treats brackish well water
and produces 6.4 mgd of
high quality drinking water
• Supplies 15% of the
Oceanside water demand
• Water Quality:
Na
Ca
(ppm) (ppm)
14
Mg
(ppm)
Hard- Fe
ness (ppm)
Cl
SO4
(ppm)
(ppm)
Alk
Well Water Quality
253
209
75.0
852
1.03
471
408
277
RO Product Quality
30.5
1.04
0.267
3.70
0.011
39.2
1.51
10
Treatment of Groundwater for use in
Bottling Industry
* Largest soft drink bottling facility in the United
States.
* Source = City well water
Dissolved Salts = 500+ ppm
Chloride = 86 ppm
Alkl = 170 ppm Ca CO3
*Objectives
Achieve less than 500 ppm TDS in product
Minimize chemical consumption
Discharge waste streams with < 250 ppm Cl
Remove possible organic contaminants
Maintain chlorine residual
Hcore 10
Primary NF
2
7
1
3
Hcore10
Primary NF
2
3
5
Hcore 50 Hcore 10
Recovery NF
Dasani RO
Pass1
4
6
15
15
Irvine Ranch Colored Water Treatment
Coast
Inland
Depth
0
Wells
Main Aquifer
Deep Aquifer
1000’
Feedwater
2000’
Concentrate
3000’
0
5
10
15
20
Colored Water
Ground Water
Goal – remove color, minimize chemical use, >94%
water recovery
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Success of Irvine Ranch DATS Project
m3/d
Increased Local
Groundwater Production
250,000
200,000
150,000
100,000
50,000
0
PROJECT GOALS
Low Colored Water:
Color from 265 CU to <5 CU
Better Quality (TDS of 300 mg/L)
7 million gal/day since 2002
Cheaper than imported water
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•
•
•
•
•
•
DATS
Well
Imported
As is Desired
State
(1999)
(2002)
PROJECT COSTS & PAYBACK
Well Drilling
$2.8 million
Treatment Plant $13.2 million
Total
$16.0 million
Annual Savings $2.6
million/yr
Payback
8.0 years
Savings
$9000/day
Wastewater Recycling at Industrial Plant
• Located in Escondido, California
• 8500 sq.ft restaurant and 1 acre
beer garden with on site brewery
• One of the fastest growing
breweries in America over the last
10 years
• Have one of largest rooftop solar
panel arrays in California
• BOD and TSS limits enforced by
City of Escondido required them to
build a treatment plant on site
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MBR / RO System
• Solids and BOD levels undetectable
after RO
• Reduced wastewater discharge from
25,000 gpd to 10,000 gpd
• 30,000 gpd reused in plant
•Cooling tower make-up
•Boiler make-up
•Centrifuge, fermentation & storage tank
rinses
•Floor wash downs
•Bottle and keg rinses
MBR
Feed
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MBR
Permeate
RO
Permeate
Bottom Line
• Saved $442,000 in hauling fees
• Saved $114,000 in chemical
costs (polymer)
• Saved $34,000 in water usage
fees from water re-use
– 11 MG/year normally taken from City
water supply not needed
• Undisclosed amount in fines
from City
• Approx. $600,000/year total
savings in operating costs
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Conclusions
Membrane technology is critical technology
for water sustainability in Southern CA
The growth of seawater desalting and
wastewater reclamation will be essential for
further commercial growth in our region
Support for and involvement in local
projects is strengthens provides jobs
Maintaining state-of-the-art capability is key
to further grow our export business
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