Question:

Desalination of sea water & reverse osmosis?

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Desalination seawater & RO for sewage treatment?

Which is cheaper in term of energy cost? Seawater desalination or waste water treatment by RO?

And which one is more environmentally friendly?

Note:

With a reference plz

RO= is reverse osmosis

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2 ANSWERS


  1. im not sure what the answer is but im sorry to answer your question with another, if its so esy to do this why is there still millions of people in thiis world without any water at all???


  2. RO for sewage treatment is typically cheaper in terms of energy costs - the saltier the water, the more pressure you need to get the water through the membrane.

    But RO for sewage treatment typically uses more chemicals and additional treatment processes, so the overall cost is similar to seawater desalination, obviously depending on the exact design.

    As for which one is more environmentally friendly, I would say RO for sewage treatment as it is reusing a waste product that is otherwise dumped in our rivers and oceans.

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