PDVF membranes have excellent chemical resistance to which substance, and what is their typical service life?

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Multiple Choice

PDVF membranes have excellent chemical resistance to which substance, and what is their typical service life?

Explanation:
PDVF membranes stand out for their resistance to inorganic foulants like iron, which is why they’re well-suited for waters with iron content. Iron in water can form oxide/hydroxide deposits that foul membranes, but PVDF’s chemical stability and smooth surface help prevent irreversible buildup and tolerate the cleaners used to remove such deposits. With proper pretreatment and routine cleaning, a typical service life for these membranes is about 8–12 years. Of course, actual life depends on water quality, fouling rate, and maintenance practices.

PDVF membranes stand out for their resistance to inorganic foulants like iron, which is why they’re well-suited for waters with iron content. Iron in water can form oxide/hydroxide deposits that foul membranes, but PVDF’s chemical stability and smooth surface help prevent irreversible buildup and tolerate the cleaners used to remove such deposits. With proper pretreatment and routine cleaning, a typical service life for these membranes is about 8–12 years. Of course, actual life depends on water quality, fouling rate, and maintenance practices.

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