Microdyn Nadir Bio-Cel L-1 Technical Instructions page 2

Materials
The following materials are needed on site to perfom a replacement of a cassette and/or diffuser
Picture
Table 1. Materials needed to perform diffuser change
Crane to lift membrane module out of tank incl. lifting tool
or chains in case work is carried out outside.
Max. weight for lifting 2800 kg.
Make sure you have a flat floor with bearing load of 2000
2
kg/m
Submerged pump to drain tank totally. If no sump pit is
available, a vacuum cleaner is highly recommended to get
the tank bottom totally cleaned and drained.
Water hose 3 inch to clean membrane modules and water
or mixed liquor supply with 5 to 10 l/s (80 to 160 gpm) for
dewatering of membrane modules if required
Sprinkler system for keeping membrane cassettes wet,
while replacing diffusers.
Torque wrench with special socket wrench for diffuser
exchange (available on request)
Loctite 243 or equivalent to apply on screws
Description
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Form-No: TI-WW006 // Revision: B // Date: Jul. 5, 18
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