1.

WHICH_OF_THE_FOLLOWING_REMAINS_THE_PRIMARY_USE_OF_MEMBRANE_FILTRATION_IN_WATER_TREATMENT??$

A. Desalination of salt water to produce potable water
B. A pretreatment step in water treatment
C. Filtration of surface or ground water under the direct influence of surface water
D. Pre heating
Answer» B. A pretreatment step in water treatment


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