Chemistry and related sciences

Is reverse way of membrane filtration possible?

Hello all,
          Normally for filtering large molecular size particles from
the smaller ones, membrane filtration is used. In this unit operation,
a high velocity liquid stream is passed through a membrane having very
small pore size.Membrane remains fixed at its loacation.
Is is possible that instead of fluid membrane will move in the
opposite direction?
Also in this arrangement we can use multiple membranes and can design
a system in which membrane will be replaced, cleaned and again
utillized for the operation in a cyclic order.
I just want to know whether this can be a possible aspect ?

Regrads:-
Ankit Khandelwal
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Fortune Favours the Boldness
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Comments (2)




2 Responses to “Is reverse way of membrane filtration possible?”

  1. admin says:

    > Normally for filtering large molecular size particles from
    > the smaller ones, membrane filtration is used. In this
    > unit operation, a high velocity liquid stream is passed
    > through a membrane having very small pore size. Membrane
    > remains fixed at its loacation. Is is possible that instead
    > of fluid membrane will move in the opposite direction?

    French press: http://en.wikipedia.org/wiki/French_press
    Buchner cell press:

  2. admin says:

    candle wrote:
    > Hello all,
    >           Normally for filtering large molecular size particles from
    > the smaller ones, membrane filtration is used. In this unit operation,
    > a high velocity liquid stream is passed through a membrane having very
    > small pore size.Membrane remains fixed at its loacation.
    > Is is possible that instead of fluid membrane will move in the
    > opposite direction?
    > Also in this arrangement we can use multiple membranes and can design
    > a system in which membrane will be replaced, cleaned and again
    > utillized for the operation in a cyclic order.
    > I just want to know whether this can be a possible aspect ?

    > Regrads:-
    > Ankit Khandelwal

    All you have to do is figure out how to make it work
    economically and reliably.  As the engineers’ motto goes,
    "The devil is in the details".

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