Transcript Slide 1

Membrane Separations &
System Technologies
and Case Studies
Larry A. Lien
Overview of MDSs Process
Membrane Expertise
Hollow Fiber
Microfiltration
(MF)
.1 to 1 micron
Bacteria
Ultrafiltration (UF) 6K to 100K MWCO
Proteins
Thin Film UF
500, 1K, 2K & 3K
MWCO
Rejects Ferric Iron,
Dyes & Small
Colloids
Nanofiltration
(NF)
150 to 500 MWCO
Divalent salts
rejected 99% but
transmits salts or
acids
RO / EMS®
50 to 150 MWCO
Rejects all salts and
acids 99+%
Typical spiral-wound element
construction:
20 cm x 100 cm (30 m2)
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•
•
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•
•
High temperature – 140°C
High pH – 14
Low pH – 0
High viscosity – 300 Centipoise @ 90°C
High solids (soluble and suspended)
Ultra-high pressures – 200 Bar
Spiral Wound Technology
Cross Flow Filtration
Important Parameters
Feed Spacer Turbulence Promoter
Feed
Vector
Permeate Vector
Keeping this ratio Low will minimize Fouling
Our system is designed to keep this ratio to minimize fouling
and reduce the cleaning frequency
Permeate Rate Does Effect
Fouling
Fouling Tendency
Fouling Tendencies vs Permeate Flux
8
6 m 3/h
6
4
15m 3/h
2
0
10
15
20
25
30
35
Flux in Liters-M2-Hour
40
Normal Cross Flow
Fouling Rate
High Cross Flow
Fouling Rate
Acid reclamation concentration with
Acid RO or
purification with Modified NF
Membranes
•
Sulfuric
•
Boric
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•
•
Nitric
Hydrochloric
Hydrofluoric
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•
•
Phosphoric
Acetic
Citric
Caustic high-pH environments with
special
RO and NF membranes
• Operated RO in high-pH cyanide solutions for 8 years’
special construction to meet waste water processing
needs
• Recovery of 5-20% caustic solution with NF membranes
with special construction for Aluminum Refinery
processes
Case Studies for Why the Mining
and Metal Refinery Industry
should use Membrane Technology
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•
•
•
Recovery of metals
Recovery of acids or caustic
Recovery of energy
Reduction of disposal costs
CASE STUDY: Yanacocha
• Gold mining heap leach water balance issue at
Yanacocha, Peru
• First RO Water Treatment system installed in 2003
• Currently, 2,750 m3/hr of barren leach solution is treated
and discharged safely into the environment
• Most original membrane-elements installed in 2003 are
still operating effectively
• Payback <4 months with gold recovery
Yanacocha process
overview
Heap Leach
Cyanide Solution
Mining
Gold
Extraction
Merrill-Crowe
3
2200 m /hr
117.5 ppm CN WAD
Returned to Extraction
Gold Recovery
Carbon Column
RO
3
1750 m /hr after
Chlorine Treatment
Discharged into Environment
Yanacocha Water Quality
Ion
mg/L
Feed
mg/L
Permeate
mg/L
Concentrate
mg/L
Discharge
Limit
mg/L
pH
10.1
8.0
9.7
6.0–9.0
CN WAD
46.7
<.05
117.5
0.2
Arsenic
0.4
<.01
1.5
0.5–1.0
Mercury
0.0025
<.0005
0.0076
0.002
Nitrite
5.19
0.09
17.11
Nitrate
27.5
0.64
89.8
Copper
3.1
0.1
11.6
0.3
Zinc
17.2
0.3
65.1
1
RO of gold-cyanide
complex concentration
99% WAD
Cyanide Removal
at pH >10.5
Au CN
CN WAD
Gold Cyanide Complex
Rejected 96.5+%
RO Membrane
Water with trace amount of Cyanide
1000 m3 Plant at
MYSRL – Yanacocha Norte,
Peru
Comments from Newmont’s
Operators at Yanacocha
• Meets water quality discharge standards
(including nitrites and nitrates not regulated)
• Allows for future safe operation and expansion
• Increased Gold and Silver recovery in membrane concentrates
(Au and Ag rejected at 96.5% rate by the membranes –
especially important during upset conditions)
• Cyanide recovery for re-use
• Chlorine consumption reduced by 75%, and overall operating cost is
70% less than that of a conventional precipitation plant
• EASY TO OPERATE
NF fractionation of gold and
copper-cyanide complex
AuCN
CuCN
Copper Complex
Rejected 98.5+%
NF Membrane
Gold Cyanide
Transmission 100%
Copper-Gold fractionation
process
Heap
Au CN
Cu CN
Preg Soln
CN
Cu CN
Copper
Recovery
Special NF
Au CN
Gold
Recovery
CN
Cu
Special RO
To Discharge
Au Recovery
CASE STUDY: Copper and
sulfuric acid rejection with special
RO membrane-elements at PhelpsDodge
Feed
1.23 g/l CuSO4
Sulfuric Acid
10 g/l
Rejected
100 g/l
RO Membrane
Transmission Water and
Trace Amount of Acid
18 years of operation of EMS®
systems at Freeport McMoRan
(Phelps-Dodge) Rod Mill – El Paso,
Texas
1-2% H 2SO 4
1,230 ppm CU
pH .8
3
18 m /hr
1% Acid
500 ppm Cu
3
1.3 m /hr
<.01% Acid
3 ppm Cu
3
14.7 m /h
Rinse Water for Rod Mill
Acid RO 1
10-12% H 2SO 4
8,000-9,000 ppm Cu
3
2 m /hr
55 Bar 45°C
.1% Acid
35 ppm Cu
3
16 m /h
Acid RO 2
ZERO-DISCHARGE
SYSTEM
To Scrap
Copper Dissolving
Process Tank
CASE STUDY: Freeport McMoRan
(Phelps-Dodge)
Acid Reference System installed in
1992
• 400 m3/day x 2 (two-pass system), total of 800
m3/day as Product
• 70 Bar capability
• All Stainless 316 with Viton Elastomers –
Victaulic and O-rings
• Two-pass system to achieve product quality
desired
Copper and Iron rejection with
special
Modified RO membrane-elements
Water and
Sulfuric Acid
Transmission
CuSO4 and
FeSO4
Both
Rejected
RO Membrane
Transmission
AMD Copper Recovery
Process
1,000 gpm
From AMD Pit
4,000 gpm
700 ppm Copper
20,000 ppm Iron
pH 0.9
1,000 gpm
Concentrate 2,000 gpm
1,400 ppm Copper
40,000 ppm Iron
pH 0.9
1,000 gpm
1,000 gpm
Permeate 2,000 gpm
<10 ppm Copper
<50 ppm Iron
CASE STUDY: AMD application at
Cananea de Mexico
• Recovery of Copper directly from EMS® concentrate
• EMS® process paid for itself within 6 months via copper
recovery
• Allowed mine to open new reserves from an old 1890s
mine shaft that would otherwise have flooded
CASE STUDY: Asarco
Refinery Wastewater
Reclamation Project
• Legacy refinery with ground water pollution
issues after 100 years
of operation
• Precipitation system installed in 1985 –
$1M capital and huge operating costs
• Membrane system installed in 1993 preceding
precipitation –
reduced volume to precipitation system from 6
m3/hr to 1 m3/hr
Copper Refinery Precipitation Process
Prior to
Addition of Membrane System
Surge Tank pH 4.0
4,000 - 10,000 ppm
Sodium Carbonate
Ferric Sulfate
Precipitate
Sludge Hauled
from System
Filter Press
Lime pH 9.8
Sodium Sulfide
Clarification
Precipitate
pH Adjust
7.0
Difficult to
Discharge and
Meet Specs
Refinery layout with membrane
system
followed by precipitation
Concentrate
to Existing
Precipitation
Modified RO
Membrane
RO Permeate
80% Recovery
Volume
Reduced
by 80%
Mixing &
Clarifying
Tanks
To Surface
Discharge
Media II
Media I
Liquid Returned
to Feed for RO
Filter Press
Sludge Hauled
Re-refined
Capital and operating costs:
Precipitation vs. Membrane-Media
Cap Cost
Chemicals
Sludge disposal per m3
Total sludge generated per
m3
Total Op cost per m3
treated
Precipitation
Membrane-Media
$1M
$300K
$2.61 per m3
$ .15 *
$26.53
$1.35
19.24 Kg
2.88 Kg
$29.15
$1.82
* Membrane cleaning and media regeneration
Final Permeate Water Analyses
Feed
mg/l
Permeate
mg/l
As
10.1
.081
Cd
14.5
.05
Zn
33.5
.01
Pb
3.07
.05
Cu
.073
.01
Fe
.986
.10
Mn
3.33
.05
Total Metals
67.9
.583
99.14%
Extraction
Sun Metals Zero Discharge Project
• New Zinc Refinery in Townsville, Australia
• $A 0.5 Billion Investment
• Zero Discharge Permitting Because Townsville is
on Great Barrier Reef
• After Construction Commenced Sun Discovered
Their Plant Effluent Could contain up to 30 ppm
of Boron
• Conventional Precipitation Could Not Remove
Boron
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Proprietary and Confidential
Sun Metals Zero Discharge
Zinc Refinery
Low pH Process
Water From Zinc
Refinery – Peabody
Water
Lime
Pond (Saturated CaSO4 )
40 M3/hr
To Evaporation Ponds
Reverse Osmosis
Boiler Feed Make-up
33 M3/hr
33
Proprietary and Confidential
35
M3/hr
Nanofiltration
Cobre Los Crucas
Seville, Spain
• Application 1
– New Mine Copper Open Pit Mine
– Alkaline Mine Drainage from Rainy Season
– Contaminated with Arsenic, Fluoride and Boron
– Zero Liquid Discharge Facility
• Application 2
– To Maintain Static Hydraulic Pressure on Open Pit Ground
Water is Pumped from Wells around the Perimeter of the Pit
– These “Water Wells” once they reach the surface must be
treated for high levels of Arsenic, Fluoride and Boron
– Clean Permeate Re-injected into Ground Water
– Membrane Plants Operate at 95-97% Recovery and the
Concentrate is Evaporated
Application 1
CLC
Alkaline Mine Drainage
•
Application 1
Cobre Los Crucas Copper Mine
Alkaline Mine Drainage
Alkaline Mine
Drainage
Pond
Hollow-Fiber
UF
Backwashable
600 m3/hr
50 m3/h
To Evaporator
Special
Construction
RO
550 m3/hr Clean Permeate
<100 ppm
Sent to Mill as Process Water
36
Proprietary and Confidential
Application 2
CLC
Well Water Treatment and Reinjection
• Perimeter Wells Drilled around Open Pit Pump Ground Water that
must be Treated before Re-injection
Application 2
Cobre Los Crucas
ZLD Process Flow Diagram EMS Plant Recovery 9597.5%
Backwash Recovered
or Sent to Seeded Reactor
Hollow
Fiber
UF
75 m3/h
750 m3/h
Wells
To Evaporator
25 m3/h
50 m3/h
For Re-injection
Special RO
90% Recovery
Special RO
60 Bar
66% Recovery
675 m3/h
For Re-injection
Hollow
Fiber
UF
Seeded
Reactor
Sludge to
Filter Press
Case Study Waihi Gold
Overview Process
PDF for Newmont Waihi Gold EMS
Turbidity
MMF
With
Backwash
9 Filters
Feed 240 M3/H
10-25C
ORP
1 micron
Bag
Filters
Duplex
on
Each Skid
AntiScalant
Oxygen Scavenger Bisulfite or Thiosulfate Solution
PI
PI
pH
TDS
High Pressure < 400 psi
Low Pressure < 200 psi
240 M3/H
Turbidity
2 Skids of Low Pressure
HF
Each capable of
120 M3/H Feed
at 75% Recovery
2 Skids Concentrator
HF High Pressure
30 M3/H back to
Each capable of 30 M3/H
60 M3/HFeed at 50% Recovery
30 M3/H
180 M3/H
TDS
210 M3/H
Permeate
to Discharge
Tailings Pond
Waihi Overview Process
PDF for Newmont Waihi Gold EMS
Turbidity
MMF
With
Backwash
9 Filters
Feed 240 M3/H
10-25C
ORP
1 micron
Bag
Filters
Duplex
on
Each Skid
AntiScalant
Oxygen Scavenger Bisulfite or Thiosulfate Solution
PI
PI
pH
TDS
High Pressure < 400 psi
Low Pressure < 200 psi
240 M3/H
Turbidity
2 Skids of Low Pressure
HF
Each capable of
120 M3/H Feed
at 75% Recovery
2 Skids Concentrator
HF High Pressure
30 M3/H back to
Each capable of 30 M3/H
60 M3/HFeed at 50% Recovery
30 M3/H
180 M3/H
TDS
210 M3/H
Permeate
to Discharge
Tailings Pond
Tapered Array for Primary
System
1st Stage
2nd Stage
9 Vessels
In Parallel
120 m3/h
5 Vessels
In Parallel
30 m3/h
Exit Volume
From Each
6 m3/h
90 m3/h
Ave 22.2 l/m2/h (l-m-h)
Tapered Array for
Concentrator System
1st Stage
2nd Stage
2 Vessels
In Parallel
1 Vessel
30 m3/h
15 m3/h
Per vessel
High Exit Velocity
Less Fouling
Exit Volume15 m3/h
15 m3/h
Ave 22.2 l/m2/h (l-m-h)
Water Quality for Selected Ions of
Interest Based on System Performance
Ion
Feed
Permeate
Concentrate
Discharge Limit
µg/l (ppb)
µg/l (ppb)
µg/l (ppb)
µg/l (ppb)
pH
9.5
10.5
8.7
6.0-9.0
CN WAD
690
144
720
NA
Arsenic
50
2
1.5
NA
Chrome
5.5
1.6
16.8
NA
Selenium
54.9
0.63
143.5
NA
Antimony
85.5
.82
272.8
NA
Copper
2.9
0.11
12.5
NA
Zinc
3.4
0.3
12.5
NA
Waihi Gold Membrane Plant
240 m3/h
Membrane Plant
Permeate Storage
Prior to Discharge
Important Operating
Parameters
•
•
•
•
Turbidity
Feed TDS
Permeate TDS
Feed Pressure
• Delta P
• ORP
• Permeate Pressure or Flow
•
•
•
•
High Level Alarm
High Level Alarm
High Level Shut-down
Low Inlet Pressure Stop &
High Pressure Alarm
• High Level Alarm
• High Level Shut-down
• High Pressure Stop & High
Flow Stop (and Alarm)
Tapered Array for Primary
System
1st Stage
2nd Stage
9 Vessels
In Parallel
120 m3/h
5 Vessels
In Parallel
30 m3/h
Exit Volume
From Each
6 m3/h
90 m3/h
Ave 22.2 l/m2/h (l-m-h)
Tapered Array for
Concentrator System
1st Stage
2nd Stage
2 Vessels
In Parallel
1 Vessel
30 m3/h
15 m3/h
Per vessel
High Exit Velocity
Less Fouling
Exit Volume15 m3/h
15 m3/h
Ave 22.2 l/m2/h (l-m-h)
Water Quality for Selected Ions of
Interest Based on System Performance
Ion
Feed
Permeate
Concentrate
Discharge Limit
µg/l (ppb)
µg/l (ppb)
µg/l (ppb)
µg/l (ppb)
pH
9.5
10.5
8.7
6.0-9.0
CN WAD
690
144
720
NA
Arsenic
50
2
1.5
NA
Chrome
5.5
1.6
16.8
NA
Selenium
54.9
0.63
143.5
NA
Antimony
85.5
.82
272.8
NA
Copper
2.9
0.11
12.5
NA
Zinc
3.4
0.3
12.5
NA
Waihi Gold Membrane Plant
240 m3/h
Membrane Plant
Permeate Storage
Prior to Discharge
Oil & Gas Experiences
Case studies
• Shell Refinery – oily waste water treated and discharged
• Coal Bed Methane Produced Water, 2500 bbls/day
discharged to the environment
• Husky Oil Produced Water re-used as flood water
• SAGD Produced Water re-used as steam make-up
• Produced Water from Gas direct discharge
• Frac-Flowback Barnett Shale re-used as Frac make-up
• High-TDS Bakken Produced Water for re-use
Shell Oil Refinery surface
waste water system
50-100 ppm Oil & 40 ppm S.S.
Equilization Tank
collects all run-off
water from
Refinery perimeter
Heat Exchanger
raises temperature
to 45°C
5% volume back to
Collection Tank
95% discharged
into Manila Bay
0 ppm Oil & S.S.
ULTRA-FILTRATION
M-Series
<50-100 ppm Oil &
<25 ppm S.S.
Conventional
Filtration
50-micron
Coal Bed Methane
produced water process
Iron & Barium control
Equilization Tank
collects produced
water from new
methane gas wells
Screen
Filtration
50-micron
10% Concentrate
to evaporation pond
90% surface
discharge quality
RO Permeate
Low-fouling
RO
Cartridge Filtration
20-micron
followed by
5-micron
Husky Oil produced water
Hydrophilic UF –
Process Overview
Concentrate returned
to Knock-out Tank
Knock-out
Tank
Ultrafilic
UF
Oil & Suspended Solids-free Permeate
to re-use as formation flood water
90+% recovery
Methane Dissolved
Air Flotation
25-50 micron
Bag Filter
Current SAGD Process – lowquality steam generator makeup and high blow-down
volumes & sludge
WAC
Weak Acid
Cation
IX
Hot Lime
Sludge Disposal
15 to 30% Blow-down
saturated in Silica-to deep well reinjection
10% returned
to Hot Lime
Steam Generator
Filtration
5-micron
followed by
1-micron
SAGD Membrane Process –
3-pass RO Permeate for boiler
feed
20 psi
95% Recovery
Nano-filtration 85°C
300 psi
100% Recovery
Ultra-filtration 85°C
Reverse Osmosis 85°C
100 psi
95% Recovery
Permeate for Steam Generator
or conventional package boiler
(less expensive)
Bench test results: 85°C
•
Feed 2600 mg/L
– Ca.............. 6.3
mg/L
– Mg.............
1.63
mg/L
– Silicon.......
66 mg/L
– Fe
..............
1.5 mg/L
– TDS............ 2500
mg/L
– TOC............ 293
mg/L
•
Permeate 24 mg/L
– Ca………….. .45
mg/L
– Mg………….
[undetectable]
– Silicon……. 1.8
mg/L
– Fe
…………..
[undetectable]
– TDS………… 24 mg/L
– TOC……….. 12.5
mg/L
Membrane SAGD Process
• Eliminate Hot Lime, new Steam Generation option,
high recovery <5-10% blow-down
3-pass
(UF-NF-RO)
Membrane System
Feed
5-10% deep well or
hot lime disposal
25%
back
to RO
RO Permeate
90-95% of
Initial Feed
Low Silica,
Hardness
& TDS
Existing
NEW OPTION
because of
high-quality
RO Permeate
97-99% Steam
Conventional
high-pressure
steam boiler
75% as steam
Steam Generator
1-3% Blow-down
Gas Well produced water
• Produced Water from a Devon Energy
natural gas production facility
in New Mexico
• Water temperature: 130-140°F
• Capacity: 7500 GPD
• Operational for 12 months
Produced Water –
3-pass membrane process (UF,
NF, RO)
Return to Produced Water storage tank
From Devon
Produced Water
Storage
Acid
60 psi
Concentrate to disposal
Ultra-filtration 130°F
1st Pass
Nano-filtration
2nd Pass
350 psi
Reverse Osmosis
3rd Pass
60 - 48 psi = 12 psi net driving pressure
175 psi
Concentrate to disposal
Permeate to surface discharge
Lab test results: Ultrafiltration process
•
Feed
–
–
–
–
–
–
–
Ca………………. 632 mg/L
Mg……………… 68 mg/L
Sodium………. 3137 mg/L
Sulfate……….. 2907 mg/L
Chlorides……. 3915 mg/L
pH………………. 5.95
TDS…………….. 10,833
mg/L
– Cond*………... 16,400 µm
hos
– TOC……………. 29 mg/L
– Oil & Grease. 80 ppm
•
Permeate
–
–
–
–
–
–
–
Ca………………. 576 mg/L
Mg……………… 148 mg/L
Sodium………. 3201 mg/L
Sulfate……….. 2944 mg/L
Chlorides……. 4118 mg/L
pH………………. 6.33
TDS…………….. 11,158
mg/L
– Cond*………... 16,700 µm
hos
– TOC……………. 11.9 mg/L
– Oil & Grease. [undetected]
Lab test results: Nano-filtration
process
•
Feed
–
–
–
–
–
–
–
Ca………………. 632 mg/L
Mg……………… 148 mg/L
Sodium………. 3137 mg/L
Sulfate……….. 2944 mg/L
Chlorides……. 4118 mg/L
pH………………. 6.33
TDS…………….. 11,158
mg/L
– Cond*………... 16,700 µm
hos
– TOC……………. 11.9 mg/L
– Oil & Grease. [undetected]
•
Permeate
–
–
–
–
–
–
–
–
Ca………………. 98 mg/L
Mg……………… 16 mg/L
Sodium………. 3201 mg/L
Sulfate……….. 50 mg/L
Chlorides……. 3976 mg/L
pH………………. 6.43
TDS…………….. 6,835 mg/L
Cond*………... 12,050 µm
hos
– TOC……………. 7.71 mg/L
– Oil & Grease. N/A
Lab test results: Reverse
Osmosis process
•
Feed
–
–
–
–
–
–
–
–
Ca………………. 98 mg/L
Mg……………… 16 mg/L
Sodium………. 3201 mg/L
Sulfate……….. 50 mg/L
Chlorides……. 3976 mg/L
pH………………. 6.43
TDS…………….. 6,835 mg/L
Cond*………... 12,050 µm
hos
– TOC……………. 7.71 mg/L
•
Permeate
–
–
–
–
–
–
–
–
Ca………………. 10 mg/L
Mg……………… 0 mg/L
Sodium………. 339 mg/L
Sulfate……….. 3 mg/L
Chlorides……. 483 mg/L
pH………………. 6.39
TDS…………….. 933 mg/L
Cond*………... 1,690 µm
hos
– TOC……………. 2.85 mg/L
Projected Energy Costs –
24,000 bbl/day (3,790 m3/d)
• Cost for a 3-pass system
• Total Energy – 720 hp
$ 1.85M USD
$ 0.0422/bbl
– Based on an electric cost of $0.08/kwh USD (equal to
$0.317 m3/d)
• Operating Costs
$ 0.08/bbl
– Membranes, chemicals, etc. – estimated
Frac-Flowback
•
•
•
Scope
– MDS will provide an Membrane Separation plant to process 4,000
bbl/day of frac-flowback water
– MDS will build, own, operate and maintain plant for 3-year period
Objectives
– Continuous treatment of 4,000 bbl/day of frac-flowback water
– Production of 3,400 bbl/day of final permeate water
• Low chloride, TDS & TOC levels
– Production of 600 bbl/day of final concentrate water
• Low hardness & TOC levels, high chloride & TDS levels
• Concentrate to deep well injection, evaporation pond
Overall water recovery: 85% (3,400 bbl/day from 4,000 bbl/day)
MDS Process Plant Water
Balance
RO Permeate
3400 bbl/d
Suitable for re-use
Frac-Flowback
4000 bbl/d
Concentrate
600 bbl/d
Utilizes ultra-high-pressure RO machines capable of 1500 psi
Pretreatment of feed water is important in
order to minimize membrane fouling and
ensure consistent plant performance
– 3-stage pretreatment process
• Induced Gas Flotation (IGF):
removes bulk oils, polymers and
suspended solids
– Reduces insoluble oil and
suspended solids from ~200
ppm to ~20 ppm
• Walnut Shell Filtration (WSF):
polishing removal of oils,
polymers and suspended solids
– Reduces insoluble oil and
suspended solids from ~20
ppm to ~2 ppm
• Ultra-filtration (UF): 0.01 µm pore
size for final polishing of oils,
polymers and suspended solids
– No additional solids generated
N2 Exhaust
•
N2 Supply
Pretreatment – an Important
Component
1 gpm, IGF
Skim Water
WSF Backwash
1 gpm Nominal
13 gpm UF
Conc Bleed
Chem
Tote
Chem
Tote
Anti
Scalant
Tote
UF
WSF
IGF
115 gpm
UF Perm
UF Feed
Tank,
500 bbl
Frac Tank
130 gpm,
20 psi,
129 gpm,
45 psi
128 gpm,
15 psi
UF Wash Skid
N2 Exhaust
Blending
Tank,
500 bbl
Frac Tank
N2 Supply
Frac-Flowback Plant Process
Flow Diagram
1 gpm, IGF
Skim Water
3 gpm
Blowdown
12 gpm
NF Conc
WSF Backwash
1 gpm Nominal
600 bbl/day
Waste Tank,
500 bbl
Frac Tank
13 gpm UF
Conc Bleed
Chem
Tote
4,000 bbl/day
117 gpm Frac Flow-Back
Water, 30,000 TDS
Blending
Tank,
500 bbl
Frac Tank
Chem
Tote
Anti
Scalant
Tote
Anti
Scalant
Tote
UF
UF Feed
Tank,
500 bbl
Frac Tank
Receiving
Tank
500 bbl
Frac Tank
Blending
Tank,
500 bbl
Frac Tank
130 gpm,
20 psi,
1,000
bbl/day
103 gpm
NF Perm
129 gpm,
45 psi
128 gpm,
15 psi
Evaporator
(existing)
HF
3,400 bbl/day
2,400 bbl/day
72 gpm
HF Perm
HF Feed
Tank,
500 bbl
Frac Tank
NF Feed
Tank,
500 bbl
Frac Tank
NF Wash Skid
100 gpm Permeate
for Devon Take-Off
HF Perm
Tank,
500 bbl
Frac Tank
103 gpm
50 psi
115 gpm
50 psi
UF Wash Skid
Blending
Tank,
500 bbl
Frac Tank
31 gpm
HF Conc
NF
115 gpm
UF Perm
500 gpm, (Periodic)
130 gpm (Average)
1,000 bbl/day
29 gpm
Condensate
WSF
IGF
17 gpm Waste for
Devon Take-Off
HF Wash Skid
What makes MDS
Systems
Design
Unique?
Special membranes and element construction
•
• Special system design
• Special operating procedures based on intimate
knowledge of the installation’s water
• Special cleaning procedures
• 28 years of process membrane systems
experience
• Not just another bench test result – commercial
applications running daily at significant volumes