70
11.6.2
Chemical cleaning
Chemical cleaning dissolves biological build-up (fouling) and mineral deposits (calcium) accumulated inside
of the hollow fibres.
Chemical cleaning of the membrane cartridge may be done in two ways:
In-Situ, directly in the bioreactor
Intensive, in a separate cleaning container
The main differences between the two cleaning possibilities are:
In-Situ cleaning
Intensive cleaning
Cleaning time
2 hrs
12 - 24 hrs.
Cleaning result
(greywater application)
Depends on the initial state of
the membrane up to 1.5 L/min
Independent of the initial state of the
membrane up to 2.0 L/min
Required accessories
Filtration cleaning connection
and chemical container
Separate cleaning container,
container size depends on the number of
membranes on the membrane station
Depending on the cleaning interval, the incoming water quality, temperature, dirt and other parameters
the average flow can vary. Typical flow curves for standard grey water qualities in dependence of the
cleaning intervals are shown in the curve below:
Fig.: Membrane cartridge stabilization flow filtration curve with proposed cleaning schedules
Summary of Contents for AQUALOOP GW 10800
Page 12: ...11 Fig AQUALOOP System 1200 L day 317 GPD Fig AQUALOOP System 1800 L day 476 GPD...
Page 13: ...12 Fig AQUALOOP System 3600 L day 952GPD Fig AQUALOOP System 5400 L day 1428 GPD...
Page 37: ...36 Fig Electrical connection plan upper pump lower pump...
Page 39: ...38 Fig Control cabinet of multiple membrane station controller...
Page 42: ...41 7 1 3 Expansion membrane station controller Fig Control cabinet of expansion controller...
Page 89: ...88 Designed and provided by INTEWA GmbH or to be separately approved alternative...
Page 90: ...89 INTEWA GmbH Version 1 1 a Subject to technical changes...
