oxyflex - mf 1100 ® membrane-plate-diffuser - supratec.cc

BELÜFTUNGSTECHNIK
UMWELT- & VERFAHRENSTECHNIK
SERVICE & WARTUNG
G E N E R A L I N F O R M A T I O N
OXYFLEX
®
- MF 1100
MEMBRANE-PLATE-DIFFUSER
For fine bubble aeration of liquids
Supratec
von-Drais-Straße 7
D-55469 Simmern/Hunsrück
Fon: *49 (0 67 61) 9 65 09-00
Fax: *49 (0 67 61) 9 65 09-01
e-mail: info@supratec.cc internet: www.supratec.cc
GESELLSCHAFT FÜR U MWELT-
U N D VERFAHRENSTECHNIK mbH

Supratec
®
OXYFLEX -MF
General
Information
Design
Membrane
Characteristics
Gesellschaft für Umweltund
Verfahrenstechnik mbH
Supratec Gesellschaft für Umwelt- und Verfahrenstechnik mbH produces modern
high efficient aeration systems, which are mainly used for oxygen transfer into
biological waste water treatment. These products can also be used for any kind of
transfer of gases into liquids
OXYFLEX ® is the brand of membrane diffusers (plate, tubes and discs) with a
plastic body.
The extra ordinary characteristics of OXYFLEX ® - MF membrane plate diffusers
are given by its shape and the materials used.
OXYFLEX ® -MF membrane plate diffusers are available in two sizes:
• OXYFLEX ® -MF 650 (width x length) 650 mm x 150 mm and
• OXYFLEX ®
-MF 1100 (width x length) 1100 mm x 200 mm.
The body is a oval plate, made of glass reinforced made of Polypropylene. The
membrane is fixed to this body with a plastic frame also made of glass reinforced
Polypropylene.
Standard membranes are made of EPDM.
Membranes made of Silicone and Polyurethane are also available.
The membranes have a unique slot-arrangement. The size and arrangement of
those slots is optimized to achieve maximum oxygen transfer efficiency.
OXYFLEX ® - MF membrane plate diffusers have low pressure loss.
OXYFLEX ® - MF membrane plate diffusers are highly resistant against soiling.
OXYFLEX ® - MF membrane plate diffusers produce fine bubbles of a medium
diameter < 2 mm.
Unlike tube diffusers, the whole active diffuser surface is at the same hydraulic
level, therefore the membranes operate evenly across the full range from minimal
to maximal air flow. This feature results in optimum lifetime and efficiency.
OXYFLEX ® -MF membrane plate diffusers can be operated intermittently.
OXYFLEX ® -MF membrane plate diffusers can be installed with plastic- and/or
stainless steel pipes and are used for all geometric forms of tanks, but they are
extraordinarily good for medium and huge sized tanks.
OXYFLEX ® -MF membrane plate diffusers are well established and are working to
the clients satisfaction world-wide.
Performance OXYFLEX ® -MF membrane plate diffusers have a very wide range 2-25 Nm³/h.
Combination
Variations
The design air flow should be approximately 12 ± 2Nm³/h.
OXYFLEX ® -MF membrane plate diffusers can reach specific oxygen transfer
efficiency up to 25 gO2/Nm³xmsub, if coverage and water depth is favourable.
For plants with partly intermittent operated tanks, OXYFLEX ® -MF membrane plate
diffusers can be combined with BRANDOL ® ceramic tube diffusers. However,
different pressure losses have to be considered
Modified OXYFLEX ® -MF membrane plate diffusers are also available for drinking
water purposes.
OXYFLEX ® -MF membrane plate diffusers are also available as coarse bubble
diffusers
von-Drais-Straße 7 • D-55469 Simmern • Fon: +49 (0 67 61) 9 65 09-00 • Fax: +49 (0 67 61) 9 65 09-01 • info@supratec.cc

Supratec
Gesellschaft für Umweltund
Verfahrenstechnik mbH
®
D R A W I N G OXYFLEX MF1100 ‘B’
Membrane Plate Diffuser
®
OXYFLEX -MF 1100 Type ‘B’ will be installed to a
rectangular pipe by 4 welded thread bolts, those are
welded to the pipe.
Materials:
Body: Polypropylen (PP-GF)
Frame: Polypropylen (PP-GF)
Gasket: EPDM
Membrane: EPDM
Polyurethan
Silicon
Membrane area: 0,2 m²
Frame 2 pieces
Frame 2 pieces
Distributor Pipe
Distributor Pipe
30
1105
Frame
Distributor
Membrane
Body plate
Threat-bolt M6 x 35mm
Hole in Pipe Ø 30mm
Membrane
Gasket
Air-socket
Hole Ø 30mm
von-Drais-Straße 7 • D-55469 Simmern • Fon: +49 (0 67 61) 9 65 09-00 • Fax: +49 (0 67 61) 9 65 09-01 • info@supratec.cc
227
30
270

Frame
2 pieces
Frame
2 pieces
Membrane
Clamp
Thread connection
Hole Ø 25mm
Distributor in different diameter
e.g. DN 100, DN 80
Stainless steel or plastic
Supratec
Gesellschaft für Umweltund
Verfahrenstechnik mbH
®
D R A W I N G O X Y F L E X - M F 1 1 0 0 ‘ A S ’
Membrane Plate Diffuser
®
OXYFLEX -MF 1100 Type ‘AS’ will be mounted onto
distributor with a welded clamp (different diameter
available).
Materials:
Body: Polypropylen (PP-GF)
Frame: Polypropylen (PP-GF)
Clamp:
Polypropylen (PP)
Gasket: EPDM
Membrane: Polyurethane
EPDM
Membrane area: 0,2 m²
Frame
Body
Distributor Pipe
1105
Membrane
Clamp
Thread Connection 2”
Gasket
Hole Ø 25mm
von-Drais-Straße 7 • D-55469 Simmern • Fon: +49 (0 67 61) 9 65 09-00 • Fax: +49 (0 67 61) 9 65 09-01 • info@supratec.cc
20 30
65
227
270

OXYFLEX
®
- MF 1100
MEMBRANE-PLATE-DIFFUSER
For fine bubble aeration of liquids
- No guarantee-claims can be derived from the diagram!
specific O2-entrainment standard conditions and pressure loss
®
OXYFLEX -MF 1100
Supratec
von-Drais-Straße 7 • D-55469 Simmern • Fon: +49 (0 67 61) 9 65 09-00 • Fax: +49 (0 67 61) 9 65 09-01 • info@supratec.cc
Gesellschaft für Umweltund
Verfahrenstechnik mbH
C U R V E S P r e s s u r e - O x y g e n
®
OXYFLEX -MF 1100 membrane plate diffuser are high efficient diffusers, and are mainly used for oxygen supply
to bioligical waste water treatment plants.
Beside procedural necessities, important criterions are used to select the matching fine-bubble aerationtechnology
to the features of a treatment plant.
®
Systems using OXYFLEX -MF1100 membrane plate diffusers are typically designed at a specific air-flow of 12
Nm³/h per unit.
This gives a good compromise between capital investment and efficiency.
The following table shows figures taken from an actual oxygen efficiency test.
The values have been reached in a carrousel basin with water depth of 5,0m, submergence of diffusers of 4,8m
and coverage of 16,2% (in the aeration zones - 2 zones per tank).
These are typical values particular to the test basin. The figures can deviation ± 25% in tanks of different sizes and
diffuser density and loading.
SUPRATEC would be pleased to produce a data-sheet for any individual application on request.
OCL,h [gO 2/(Nm³
x m ET)]
35
30
25
20
15
10
0
�p
OC
2 4 6 8 10 12 14 16
specific load [Nm³/h]
60
50
40
30
20
10
�p [mbar]

Supratec
Gesellschaft für Umweltund
Verfahrenstechnik mbH
I N S T A L L A T I O N M A N U A L
OXYFLEX ® OXYFLEX - MF 1100
-B-
MEMBRANE MEMBRANE-PLATE-DIFFUSER
PLATE DIFFUSER
FOR For fine FINEbubble BUBBLE aeration AERATION of liquids OF LIQUIDS
Description
Measurements
Storage
Preparation
Levelling
Installation
®
OXYFLEX ® -MF 1100 – membrane plate diffuser Type ’AS’ has a solid,
strong, horizontal body, made of glass-reinforced Polypropylene and a
slipped over membrane (e.g.: EPDM).
The two-piece-frame, made of glass-reinforced Polypropylene ensures
the proper location of the membrane.
The body has an air-socket of ∅29 mm.
This clamp can be fastened by screws or wedges.
The integral gasket of the clamp seals the system.
Width: .. 215mm, Length: .. 1105mm, Height: ..30mm
- with rounded edges.
Free membrane area: Length: 1100 mm, Width: 210 mm (0,2 m²)
The diffusers should be stored in their packing inside a dry and aerated
building. DIN 7716 has to be considered.
Before installation of the OXYFLEX ® - MF 1100 - membrane plate
diffuser Type -B- it has to be checked that the piping system is clean.
Drilling chips, dirt etc. have to be removed, as those will be transported
into the diffusers as soon as blowers are set into operation causing
serious damage to the diffuser membranes.
OXYFLEX ® -MF 1100 - membrane plate diffuser Type -B- are normally
installed onto rectangular pipes. The piping system has to be levelled to
maximum ± 10 mm.
OXYFLEX ® -MF 1100 - membrane plate diffuser Type -B- can be fixed
to rectangular pipes made of stainless steel. On the upper side of those
pipes, centred holes of diameter ∅ 30 mm must be made and 4 threatbolts
are welded onto this pipe.
The diffuser's air socket must fit in the a.m. hole. The bolts will suit into
the 4 holes in the two-piece-frame of OXYFLEX ® -MF 1100 - membrane
plate diffuser Type -B-.
Care must be taken of the horizontal seat of the diffusers. The gasket,
made of EPDM must be clean and undamaged and should sit between
diffuser and pipe.
von-Drais-Straße 7 • D-55469 Simmern • Fon: +49 (0 67 61) 9 65 09-00 • Fax: +49 (0 67 61) 9 65 09-01 • info@supratec.cc

f o r f i n e b u b b l e a e r a t i o n o f l i q u i d s
MEMBRANE-PLATE-DIFFUSER
For fine bubble aeration of liquids
Function
and
Leakage Check
First Run of
Diffusers
Visual Bubble
Check
Oxygen-
Transfer-
Efficiency Test
Start up
Supratec
Gesellschaft für Umweltund
Verfahrenstechnik mbH
O P E R A T I O N M A N U A L
®
OXYFLEX - MF 1100
®
After installation of OXYFLEX -MF 1100 Membrane Plate Diffusers a function and leakage test
should be carried out.
The tank should be filled with clean water up to maximum 10 cm above diffusers’ surface and the
diffusers set in operation.
Then function and installation can be checked and confirmed by report.
®
After function and installation has been checked and confirmed OXYFLEX -MF 1100 Membrane
Plate Diffusers have to be operated at least another 60 hours continuously.
Water level shall be as quickly as possible raised up to minimum 100 cm above diffusers’ surface.
IMPORTANT: • Diffusers should not stand still
The visual judgement of the bubble distribution should not be taken before the above specific first run
of diffusers.
To do the visual check, the diffusers shall operate at maximum capacity and shall be turned to the
minimum.
• Test of even aeration (visual bubble check) must take place when the water level is at least 60-100
cm above diffusers’ surface.
• Test of even aeration (visual bubble check) at minimum air flow can only take place if the water
temperature is above 10°C.
®
Before the stated oxygen transfer efficiency figures of the OXYFLEX -MF 1100 Membrane Plate
Diffusers are proved with an oxygen transfer efficiency test, the above mentioned steps have to be
considered.
The oxygen transfer efficiency test must be done accordingly to accepted rules (e.g. ATV-M 209) in
clean or waste water.
Guarantee figures have to be controlled exactly. It is necessary to have a precise air-flow
measurement system.
®
After successful oxygen transfer efficiency test, start up of the OXYFLEX -MF 1100 Membrane Plate
Diffusers may follow immediately. If there is a postponement of the start up, care should be taken that
®
the water level stays at least 100 cm above diffusers’ surface to protect OXYFLEX -MF 1100
Membrane Plate Diffusers from sunlight and / or freezing.
von-Drais-Straße 7 • D-55469 Simmern • Fon: +49 (0 67 61) 9 65 09-00 • Fax: +49 (0 67 61) 9 65 09-01 • info@supratec.cc

Supratec
Gesellschaft für Umweltund
Verfahrenstechnik mbH
M A I N T E N A N C E M A N U A L
OXYFLEX
®
- MF 1100
MEMBRANE-PLATE-DIFFUSER
For fine bubble aeration of liquids
Maintenance
Supervision
Warranty
®
OXYFLEX -MF 1100 Membrane Plate Diffusers do not need a lot of maintenance. Usually it is
enough to have one run of 10 to 15 minutes operation at maximum air-flow per day.
To do so, it may help to shut down the system partially, by closing the corresponding valves.
This removes layers of sludge which may have occurred after long times of in operation of the system
or long times of low specific air flow.
®
At least once per year OXYFLEX -MF 1100 Membrane Plate Diffuser should be checked visually,
particulary they should be checked for layers of sludge or similar. If so, those layers should be
removed carefully.
A seperate maintenance-contract is available.
A Visual bubble check should be carried out daily. The pressure loss of the system should be
monitored and reported monthly.
Apparent changes of the bubble distribution and/or of the pressure loss should be promptly reported
®
to SUPRATEC GmbH, especially at installations with intermittent operation where there is a risk that
®
activated sludge could penetrate the entire piping through a damaged OXYFLEX -MF 1100
®
Membrane Plate Diffuser which would affect function and lifetime of all OXYFLEX -MF 1100
Membrane Plate Diffusers in the system.
®
®
The maximum of SUPRATEC GmbH’s warranty for OXYFLEX -MF 1100 membrane is 24 months.
Longer warranty can be arranged only with conclusion of a maintenance contract between the
®
operator and SUPRATEC GmbH.
Damage and/or other influences are specifically excluded from the warranty promise.
®
The maximum of SUPRATEC GmbH's warranty for Membrane-Plate-Diffuser OXYFLEX MF is 24
month.
Longer warranty can be arranged only with conclusion of a maintenance contract between the
operating and SUPRATEC GmbH.
Damages and/or outer influences are specifically excluded from the warranty promise.
The warranty ends if it known, that sewage is partially mainly full of industrial origin and/or the
sewage has damaging influence on membrane diffusers and the SUPRATEC GmbH was not
informed accordingly. In such case, a confirmation of the warranty is to be ordered through the
SUPRATEC GmbH.
The correction of vaults in the warranty is to determine by approval. In case of warranty starts a 2
year long warranty for the changed diffusers. Is the first warranty longer running, it apply till it ends.
The general sales and warranty conditions of SUPRATEC GmbH are valid, and can be appreciate at
www.supratec.cc.
von-Drais-Straße 7 • D-55469 Simmern • Fon: +49 (0 67 61) 9 65 09-00 • Fax: +49 (0 67 61) 9 65 09-01 • info@supratec.cc