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Microdyn Nadir Bio-Cel L-1 Technical Instructions

Replacement of cassette and diffuser
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Technical Instruction
MICRODYN BIO-CEL
Replacement of Cassette and Diffuser
Safety Precautions & Storage Conditions
i
Important Information
The regional safety precautions must be fulfilled that the required work can be performed
onsite. The fulfillment of these safety precautions is not a duty of MICRODYN-NADIR.
To transport and temporarily store the module before installation, please consider the safety instructions
listed below. These instructions are also listed on the packaging.
Please note that diffusers are very sensitive against direct sunlight and sharp materials. Be careful when
opening the package and handling with the diffusers.
Transport with
Do not damage
forklift only.
outer packaging
Do not stack the
Protect from
modules.
direct sunlight.
®
Handle the
product with care.
at the top.
Store in the
following
temperature
range only:
5°C - 40°C
(40°F - 104°F).
L-1
Packaging is
top-heavy.
Protect from
moisture
(< 70 %).
Form-No: TI-WW006 // Revision: B // Date: Jul. 5, 18
Store packaging
upright with arrows
directed upwards.
1 | 13

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Summary of Contents for Microdyn Nadir Bio-Cel L-1

  • Page 1 Technical Instruction ® MICRODYN BIO-CEL Replacement of Cassette and Diffuser Safety Precautions & Storage Conditions Important Information The regional safety precautions must be fulfilled that the required work can be performed onsite. The fulfillment of these safety precautions is not a duty of MICRODYN-NADIR. To transport and temporarily store the module before installation, please consider the safety instructions listed below.
  • Page 2 Materials The following materials are needed on site to perfom a replacement of a cassette and/or diffuser Table 1. Materials needed to perform diffuser change Picture Description Crane to lift membrane module out of tank incl. lifting tool or chains in case work is carried out outside. Max.
  • Page 3 Introduction & Handling Rules for Cassettes and/or Diffuser Tubes • When replacing the cassette or/and the diffuser tubes MICRODYN-NADIR strongly recommends reading this technical instruction carefully and exactly following the instructions. • Please note the safety and storage conditions described above and in the BIO-CEL ®...

  • Page 4: Available Accessories And Spare Parts

    Available Accessories and Spare Parts ® Table 2 and 3 show the available accessories and spare parts for the BIO-CEL L-1 module. ® Table 2. Available Accessories for MICRODYN BIO-CEL Part Drawing Stainless Steel Position Accessory Number numbers Grade 00350115 Standard: 1.4301/304 (V2A) ®...

  • Page 5: Spare Part

    ® Table 3. Available Spare Parts for MICRODYN BIO-CEL Part Position Spare Part Stainless Steel Grade Number 00350123 Standard: 1.4301/304 (V2A) ® BIO-CEL L-1 Spare cassette C L-UP150 00350124 On request: 1.4571/316Ti or 1.4404/316L (V4A) 00350125 Standard: 1.4301/304 (V2A) ® BIO-CEL L-1 Base frame including diffusors 00350126...
  • Page 6 ® Replacement of MICRODYN BIO-CEL L Cassette The replacement of the BC-L cassette might either be done in the filtration tank or by lifting out the complete module. In both cases make sure you remove heavy sludge deposits before lifting the module or the cassette.
  • Page 7  Open the screws (M6x16) which fix the connection bolts (which connects the cassette to the diffuser frame) and remove the bolts.  The cassette can now be lifted out of the diffuser frame. Before installing the new cassette on the diffuser frame, check the diffuser status.
  • Page 8  Make sure the o-ring is seated in the groove correctly.  Mount the permeate connector on the cassette (open side of permeate channel) with 6 M10x90 screws. Do apply some screw lock (Loctite 243) on the screws before mounting Do apply some screw lock (Loctite 243) on the screws before mounting and torque the screws with 14Nm.
  • Page 9  Align the cassette in a way, that the boreholes of the cassette and the frame do match.  Put the bolts into the boreholes and fix them with the screws (M6x16) Do apply some screw lock (Loctite 243) on the screws before mounting The Module is now ready to be installed back again.
  • Page 10  Open the screws (M6x16) which fix the counter part of the diffuser tubes and remove  Disassemble the blind cap with the special socket wrench.  If there are round shaped blind caps (older systems) use a pipe wrench to remove it.. ...
  • Page 11 Flat seal Washer A 8,4 (from screw set) Hex nut M6x16 Tuflok (from screw set)  Check that the flat seal is on the blind plug. (The plug comes already with a seal!) The flat seal on the plug is different from the one you need for the tube (1mm, thicker).
  • Page 12  Mount the diffuser tube into the bore hole from below. Make sure the diffuser is correctly plugged in the bore hole and the sealing is pressed against the rectangular steel pipe. Make sure that the air distributor is clean (from out- and inside) before mounting new diffuser tubes.
  • Page 13  Make sure that the flat seal is correctly adjusted.  Use the special socket wrench to assemble the blind cap of the diffusor tube. Make sure the diffusor tube did not turn and the perforation is still on the right position (3 & 9 o’clock) ...