Compact 33V - 5.2mm - X-Flow

X-Flow
CompaCt 33V
waTer soluTions product brochure

low energy
anD high effiCienCy
general inForMaTion Key FeaTures
Due to more stringent requirements for
wastewater discharge, the disposal cost
of municipal and industrial wastewater
is increasing. In addition, in some areas,
the use of groundwater is being limited to
prevent dehydration of the soil, which could
have a destructive influence on nature’s
flora and fauna. With these factors in
mind, the need for a closed water cycle is
increasing rapidly. For efficient wastewater
treatment, Pentair X-Flow has developed
the Airlift Membrane BioReactor (MBR).
This energy-efficient treatment concept
has Compact 33V - 5.2 mm ultrafiltration
(UF) membrane modules at its center with
a robust and reliable enforced tubular
membrane inside. The 3 m long 8” modules
allow a bioreactor to run up to 15 g/l MLSS
biomass with a limited space requirement
while offering a clean and safe environment.
These features make Pentair’s Airlift MBR
technology an ideal small footprint solution
for municipal and industrial applications.
Membrane placement
• Outside the bioreactor
Permeate quality
• True ultrafiltration
• Turbidity < 0.1 NTU
• Silt Density Index < 3
Maintenance & cleaning
• Accessible & clean environment
• Fully automated cleaning
• Use of low cost chemicals
airlift filtration
• Low energy ~ 0.3 kWh/m3 • Simple layout
• High flux rates
• Low TMP
Fully automatic operation
• Logging of operating parameters
atmospheric system
• Fully enclosed
• No operator exposure to fumes or
aerosols
• Small footprint
aPPlicaTions
• Municipal (typical application)
• Industrial (only for specific applications)
> Beverage industry, where high COD
loads need to be reduced
- Breweries
- Dairy plants
- Malt houses
> Refineries
> Other industries
- Automotive
- Chemical
- Textile

airliFT Mbr PrinciPle
The Airlift MBR system consists of a
loop with membranes positioned outside
the bioreactor tank rather than having
the membranes in the bioreactor or a
separate part of the bioreactor as in
submerged concepts. The membrane
modules are arranged vertically and are
aerated continuously at the bottom. The
turbulence created by the air injection
enables high flux rates at a very low Trans
Membrane Pressure (TMP) and a low energy
consumption of 0.3 kWh/m³.
The continuous aeration is the main driving
force for the circulation of the activated
sludge, while the feed pump is only
used to overcome the hydraulic losses.
A combination of forward flushing and
periodic backflushing and/or relaxation
intervals is used to control the cake layer
formation inside the membrane tubes
and to extend the intervals between
maintenance cleanings. The continuous
aeration also takes care of the fouling
control inside the individual membrane
tubes.
reFerences
Municipal wastewater, Netherlands
Capacity: 3,600 m 3 /d
clean & coMPacT design eFFiciency & susTainabiliTy
The Pentair Airlift MBR is a compact-built
purification system combining the biological
degradation step with a membrane
separation step. This combination offers
several significant advantages over a
conventional activated sludge system,
including higher biomass concentration and
less sludge carryover. The higher biomass
concentration results in a more compact
system design which is an advantage for
both highly populated and remote areas.
The decrease in sludge carry-over in the
effluent reduces the need of post-treatment
of the effluent protecting ecologically
sensitive areas. Another advantage of
the side stream set-up is that existing
wastewater treatment plants can be easily
expanded. By adding the membrane units
to the existing plant, its capacity can be
advanced significantly, without increasing
footprint or civil works.
Municipal wastewater, Netherlands
Capacity: 14,000 m 3 /d
The need for reusing wastewater, both
industrial and municipal, requires topquality
membranes which provide direct
re-useable water. The membranes
applied in these applications filter down to
ultrafiltration level and can be compared
to the ones utilized in direct potable water
plants. Energy consumption is at the same
level of submerged membranes or even
less, due to the efficient use of process
conditions for flux enhancement.
Another advantage of the AirliftTM MBR
technology is that the membrane modules
are placed outside the bioreactor in a clean
and dry system setup. The wastewater
itself is inside the membranes rather
than outside, thus reducing the problem
of maintaining elements submerged
in activated sludge. Accordingly, the
membranes are easily accessible and
cleaned without having to touch or smell
the sludge.
Brewery wastewater, Venezuela
Capacity: 2,000 m 3 /d

X-Flow Module overview
POTABLE
WATER
PROCESS
WATER
DESALINATION
PRE-TREATMENT
sPeciFicaTions
Membrane area [m²/ft²] 33 [335]
Membrane Diameter [mm/mil] 5.2 [205]
Permeate Silt Density Index < 3
Permeate turbidity < 0.1 nTu
MUNICIPAL
WASTEWATER
INDUSTRIAL
WASTEWATER
XIGA 55 o o o o
AqUAFLEX 55 o o o o
SEAGUARD 55 o
SEAFLEX 55 o
COMPACT 32V o
COMPACT 33V
(Airlift MBR)
o o
COMPACT 27 o
COMPACT 33
(Crossflow MBR)
WATER
MIRACLE
o
o
WINE
FILTRATION
R-100 o
HFS 60 SILICA o
SILICA
REMOVAL

Pioneers in
membrane filtration
abouT PenTair X-Flow
Pentair X-Flow has broad know-how and
a proud history in the development and
application of innovative membrane filtration
technologies. The company develops
and supplies membrane technology to
global municipal and industrial markets.
The product portfolio contains numerous
standard membranes, modules and units
for filtration and purification processes.
Full circle MeMbrane Technology ParTner
The success of any project, no matter how
big or small, starts with the selection of the
right membrane product, continues during
the design and commissioning phase and is
finally guaranteed by the right maintenance
and timely service.
Throughout the years, Pentair X-Flow
has especially gained expertise and
experience in water purification, ranging
from producing potable water to treating
wastewater and the pre-treatment of
seawater, but also in the food, beverage
and pharmaceutical industries.
With research, production, engineering,
automation, project management and
service in-house, Pentair X-Flow focuses
on the development of durable and reliable
products that can be tailored to the specific
needs of our customers.
Worldwide, Pentair X-Flow has an extensive
network of professional sales offices, service
centers, agents and distributors that work
together to make Pentair X-Flow the partner
of choice for world-class water purification
solutions.
As all of these aspects are equally
important to us, Pentair X-Flow is able to
support its customers from A-Z and achieve
unique results together. The benefits of
this full circle partnering approach are
demonstrated by the many worldwide
projects where Pentair X-Flow’s innovative
membrane products are applied.

X-Flow
p.o. box 739, 7500 as enschede, netherlands WWW.x-floW.coM
all pentair trademarks and logos are owned by pentair, Inc. all other brand or product names are trademarks or registered marks of their respective owners.
because we are continuously improving our products and services, pentair reserves the right to change specifications without prior notice.
pentair is an equal opportunity employer.
compact-33V e-10/12 © 2012 pentair, Inc. all rights reserved.