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What are
the differences of different types of membranes? Are all membranes
of the same type (e.g. TFC) from different manufacturers the same?
(example: an oil filter by Toyota is different from that of Mitsubishi).
You
are right. These are very similar in construction and performance. Like
other products, the main difference is in the reputation and reliability
of the manufacturer. However, because there are different
manufacturers, membranes do come in several end type configurations
depending on the manufacturer. When ordering vessels, you will
need to specify what brand of membrane you plan on using so the
appropriate end adapters can be built in. When replacing membranes
with a different brand, you should check with the salesperson to make
sure the end configuration is compatible for direct replacement.
If not, you can usually purchase an end adapter for a reasonably low
price.
I am using RO Water for our La Marzocco
espresso machine. Is it possible that the water may be too pure to allow
the electric steam generator level controller to operate successfully?
Pure water will not conduct electricity. For this reason if your
steam generator level controller operates by measuring electrical
currents, the water may be too pure to allow it to operate successfully.
We recommend using a Nanofiltration Element instead of RO, which will
remove only 80% of the Ions, compared to 99% by RO.
I have been using Full Fit Elements in my system.
I just changed the elements and am now using BW304040 which is a non-full
fit element with a fiber glass cover. What kind of problems should I
expect with the performance of the equipment?
There should be no problems. These
membranes are completely compatible.
I wonder if it would be possible to separate air
with your membranes? I’m looking for a way to separate oxygen from air.
What I understand, if concentrations and flow rates are moderate, a
membrane-system is the best system to do that with.
Our membranes will not work for air. They
are good for liquids only.
1.Can we use the nanofiltration system for reduce COD (in treated water
from leachate treatment plant) from 300 mg/l to 100 mg/l? 2. Does
nanofiltration need the sand filter and activated carbon for pretreatment?
3. What is the good characteristic of feed water for nanofiltration?
Nanofiltration performance on
waste waters is difficult to predict. Only sure way is to run a pilot test
with one membrane.
I
have seen RO systems with CTA and TFC membranes. The TFC units are higher
in price. Are they necessarily better that the CTA? I want a small unit
under the counter, about 10 GPD
The CTA membranes are chlorine
tolerant whereas TFC membranes are not. The two systems should be very
similar for your use.
What is the difference with Tap Water Membranes and Brackish water
Membranes?
There
is no
difference in the membrane material. Brackish water membranes have
an outer shell of fiberglass whereas Tap water have a tape wrap. The
construction allows Brackish water membranes to be operated at higher
pressures required to treat brackish water.
I
would like to get information about how to calculate the microfiltration
membranes area knowing the characteristics of the water and the feed flow.
Unfortunately, it is not that simple. You will need to do a pilot test to
determine the design criteria for each feed water source
Are Nano Filtration membranes suitable for removal
of Flouride?
No, you will need an RO membrane. |
