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| Q1 : |
Are the modules approved by appropriate regulatory
authorities ?
Are the module materials verified for safety ? |
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Membrane modules applied in water applications are approved
by Japan's Association of Membrane Technology by complying with the AMST standards.
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| Q2 : |
What is the status for equipment approval
by the Japan Water Research Center (JWRC) ? |
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Many suppliers of municipal water installations, including
Asahi Kasei Chemicals Corporation., have received approvals from JWRC for deploying these
modules in water plants. |
| Q3 : |
Do membrane modules conform to JWRC standardization specifications? |
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The UNA-620AS Microfiltration module meets JWRC standardization specifications. |
| Q4 : |
Which technology is preferred in
municipal water applications - Microfiltration (MF) or Ultrafiltration (UF) ?
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There is no significant difference in UF or MF permeate (filtrate)
quality and in Cryptosporidium removal efficiency. Hence, it is recommended to
make the selection on the basis of cost and taking capacity (water flux rate)
into account. |
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| Q1 : |
What are the main differences between Plate
& Frame type Membrane Bio Reactors (MBRs) and Hollow Fiber Membrane (HF) MBRs? |
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Plate & Frame MBRs facilitate removal for cleaning when
fouled from extended use in activated sludge filtration.
A promising advantage of HF MBRs, when compared with Plate & Frame MBRs, is
the HF's inherent higher membrane packaging density which facilitates a reduction
in membrane aeration tank size. |
| Q2 : |
Are hollow fiber type membranes fragile? |
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The hollow fibers employed in the Microza MBRs are designed
to have enhanced physical strength compared with more general purpose hollow fibers.
| Specific Hollow Fibers (HF) Features for Microza® MBR |
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Large diameter fiber comparable in shape and diameter with
'spaghetti', and with a significantly thicker wall structure than conventional
HF. |
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Highly crystalline PVDF HF polymer has demonstrated greater
mechanical strength and chemical resistance compared with ordinary PVDF HF. |
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The HF membrane wall is comprised of a homogeneous three-dimensional
network structure which eliminates the peeling of the skin layer often experienced
with laminated membranes. |
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| Q1 : |
How to properly choose between the KCV-3010
and KCV-3010E modules? |
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Selection is basically paint type specific. However, the KCV-3010
module is well suited for the currently in vogue CED-Lead Free paints. |
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| Q1 : |
Who should be contact to purchase membrane
modules? |
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For the Pencil type and Lab modules for experimental use,
please contact the following sales agents:
| Sales Agent |
Phone Number |
| Funakoshi Co. Ltd. |
Tokyo: 03-5684-1616 |
| Advantec Toyo Co. Ltd. |
Tokyo: 03-3862-6262, Osaka: 0729-67-1353 |
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For commercial modules for in-plant use, please contact Asahi Kasei Chemicals
Corp. sales staff directly |
| Q2 : |
How should effective filtration testing be
performed? |
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Please refer to the instruction manuals supplied with the
Pencil type and Lab modules. |
| Q3 : |
How to select module size to meet requirements?
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Please use the below table as reference or guide.
| Module Size |
Filtrate Volume |
Purpose |
| Pencil type |
~100 to 200 ml |
Separation feasibility check |
| Lab module |
~10 to 20 liters |
Obtain basic engineering and sizing data |
| Commercial size |
> hundred liters |
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| Q4 : |
How to proceed when feasibility testing is
required? |
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Our staff consultants will provide targeted technical and
economic recommendations after the questionnaire has been completed and submitted.
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