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QED
Ferret In-Well Separator |
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Remove the Hydrocarbon Source with Unique Ferret Technology |
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The Ferret provides a new, more effective way
to remove floating hydrocarbon (LNAPL) layers from water at remediation
sites, in sumps or from tanks.
Using a unique separator valve to sense the differences in specific
gravity between the hydrocarbon and water, the Ferret pumps out pure
hydrocarbon and rejects any water back into the well so that large volumes
of water do not have to be treated or disposed.
Set-up and operation are easy and safe because the Ferret is air-powered,
small diameter and lightweight.
The Ferret does not use hydrophobic screens, or belts that are messy and
work only with high viscosity floating hydrocarbons. The Ferret technology
was developed for, and proven in, ground water clean-up projects at spill
leaks sites. These projects demand that no water be pumped from the well,
in order to avoid the high cost of treating and disposing of contaminated
water. The Ferret has set a new standard in these applications based on
its proven effectiveness.
Recovering floating hydrocarbons (LNAPL) from ground water is a tough job
- with changing viscosity, fluctuating well levels and yields, and
difficult site conditions.
No one device can deliver optimal performance in every application. QED
engineers have worked with extensive customer feedback from the field to
develop six different Ferret models to solve real-world problems.
There are no easy answers, but the Ferret system is a better answer.
- Broad range of applications
- Reliable specific gravity separation
- No hydrophobic membranes
- Superior pump engineering: high
performance, low O&M
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Free Test Kit for determining the Ferret’s suitability to your site
and characterise your specific site and hydrocarbon.
The Ferret Test Kit enables you to measure the density and viscosity of your actual floating hydrocarbon layer. These two characteristics determine whether Ferret recovery will be an effective technology at your site and help choose which Ferret system will provide optimum performance.
This FREE, do-it-yourself kit comes complete with simple, illustrated instructions. Once you have recorded the results of your hydrocarbon test, Enviroequip will be able to provide expert technical assistance in system design and specification.
Contact us for a Free Test Kit.
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CHOOSING THE RIGHT FERRET MODEL |
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4-inch
and larger wells |
2-inch
and larger wells |
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Programmable |
Automatic |
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Name |
High
Capacity |
High
Capacity w/ Floating inlet |
Standard |
Standard
w/ Floating inlet |
Standard |
Standard
w/ Floating inlet |
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Model
No. |
QHIWS42 |
QHIWSFI12 |
QAIWS22 |
QAIWSFI12 |
QSIWS24 |
QIWS26 |
Max.
viscosity
(centistokes) |
1,000 |
350 |
100 |
4 |
40 |
4 |
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Min.
liquid depth (in.) |
18 |
35 |
21 |
35 |
45 |
60 |
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Maximum
flow rate (GPD)* |
300 |
275 |
100 |
100 |
300 |
100 |
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Rate will vary depending on viscosity, hydrocarbon layer thickness,
and site conditions |
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FERRET
FAMILY SPECIFICATIONS |
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4-inch
and larger wells |
2-inch
and larger wells |
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Programmable |
Automatic |
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Name |
High
Capacity |
High
Capacity w/ Floating inlet |
Standard |
Standard
w/ Floating inlet |
Standard |
Standard
w/ Floating inlet |
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Model
No. |
QHIWS42 |
QHIWSFI12 |
QAIWS22 |
QAIWSFI12 |
QSIWS24 |
QIWS26 |
Overall
length
in(cm) |
22
(58) |
51
(128) |
26
(76) |
47
(119) |
50
(127) |
72
(183) |
O.
D.
in(mm) |
3.5
(90) |
3.5
(90) |
1.75
(45) |
1.75
(45) |
1.75
(45) |
1.75
(45) |
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Floating
layer density (g/cc) |
0.76-0.90 |
0.76-0.90 |
0.76-0.90 |
0.76-0.90 |
0.76-0.90 |
0.76-0.90 |
Max.
viscosity
(centistokes) |
1,000 |
350 |
100 |
4 |
40 |
4 |
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Minimum
liquid depth |
18"
(46 cm) |
35"
(89 cm) |
21"
(54 cm) |
35"
(89 cm) |
45"
(114 cm) |
60"
(152 cm) |
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Inlet
type and range in(cm) |
Stationary |
Floating
w/ 12 (31) range |
Stationary |
Floating
w/ 12 (31) range |
Stationary |
Floating
w/ 12 (31) range |
Maximum
flow rate*
GPD(LPD) |
300
(1137) w/ 3 feet (91cm) LNAPL |
275
(0140) w/ 1 foot (30cm) LNAPL |
100
(379) w/ 1 foot (30cm) LNAPL |
100
(379) w/ 1 foot (30cm) LNAPL |
300
(1137) w/ 1 foot (30cm) LNAPL |
100
(379) w/ 1 foot (30cm) LNAPL |
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Max.
LNAPL volume per cycle |
1300
ml if no water taken in |
1300
ml if no water taken in |
280
ml if no water taken in |
280
ml if no water taken in |
250
ml if no water taken in |
250
ml if no water taken in |
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Compatible
floating layer LNAPLs |
Gasoline,
jet fuel, kerosene, fresh and weathered diesel, #2-#5 fuel oil,
light-weight motor oils, and hydraulic fluids |
Gasoline,
jet fuel, kerosene, fresh and weathered diesel, #2-#5 fuel oil,
light-weight motor oils, and hydraulic fluids |
Gasoline,
jet fuel, kerosene, fresh and weathered diesel, #2-#5 fuel oil,
light-weight motor oils, and hydraulic fluids |
Gasoline,
jet fuel, kerosene, fresh diesel fuel, and #2 fuel oil |
Gasoline,
jet fuel, kerosene, fresh and weathered diesel fuel, and #2 fuel oil |
Gasoline,
jet fuel, kerosene, fresh diesel, #2 and #3 fuel oil |
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<-------------------------------ALL MODELS------------------------------> |
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Materials |
Stainless
steel, brass, Delrin®, Viton®; Floating inlet models include epoxy
float and fuel grade tubing coil; Automatic models include internal
epoxy float |
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Fittings |
Brass
compression: discharge - 1/2" (13 mm); exhaust (automatic only) -
3/8" (9 mm); air supply and level gage - 1/4" (6 mm) |
Maximum
lift
ft(m) |
Programmable
models: 200 (61) @ 120 PSI (840 kPa); Automatic models: 150 (45) @ 100
PSI (700 kPa) |
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Air
supply pressure |
Programmable
models: 50-120 PSI (350-840 kPa); Automatic models: 50-100 PSI
(350-700 kPa) pressure
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Air
supply flow |
0.5
- 1.0 SCFM (0.85 - 1.7 m3/hr) flow |
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*
Rate will vary depending on viscosity, hydrocarbon layer thickness,
and site conditions |
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Teflon
and Delrin are registered Dow trademarks. Tygon is a registered Norton
trademark. Viton is a registered trademark of DuPont Dow Elastomers. |
| HOW THEY WORK |
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Refill Cycle:
AIR SUPPLY OFF
Hydrocarbon (Red) and/ or water (blue) enter the inlet. As the pump
fills, water settles to the bottom and hydrocarbon droplets coalesce and
float on top. The lower check ball floats and rises, preventing water
from entering the bottom of the pump. |
Water Discharge Cycle:
AIR SUPPLY ON
Air pressure forces the lower check ball down, while the upper check
ball floats, allowing water to exit the bottom of the pump. Low pressure
in the pump keeps the pressure check valve shut, blocking the discharge
line so no water is pumped to the surface. |
Hydrocarbon Discharge
Cycle
AIR SUPPLY ON
After the water is gone, the upper check ball sinks in the hydrocarbon
and seats, closing off the pump bottom and allowing pump pressure to
build. The pressure check valve opens, releasing hydrocarbon into the
pump discharge line and tube to the surface. |
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