The cleaning of microfiltration membranes helps maintain a stable ______ while keeping recovery at or above _______.

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Multiple Choice

The cleaning of microfiltration membranes helps maintain a stable ______ while keeping recovery at or above _______.

Explanation:
Cleaning removes foulants that build up on microfiltration membranes, which would otherwise increase resistance and cause the permeate flux to decline. By restoring the membrane’s hydraulic permeability, the permeate flow remains stable over time. Recovery is the fraction of the feed that becomes permeate, so aiming to keep recovery at or above 99% minimizes waste and maximizes water production. Because cleaning directly supports stable flux and a very high recovery target is used for efficient MF operation, the best pairing is stable flux with recovery at or above 99%.

Cleaning removes foulants that build up on microfiltration membranes, which would otherwise increase resistance and cause the permeate flux to decline. By restoring the membrane’s hydraulic permeability, the permeate flow remains stable over time. Recovery is the fraction of the feed that becomes permeate, so aiming to keep recovery at or above 99% minimizes waste and maximizes water production. Because cleaning directly supports stable flux and a very high recovery target is used for efficient MF operation, the best pairing is stable flux with recovery at or above 99%.

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