Which of the following statement is incorrect? Nanofiltration can withstand very high or low pH environment Nanofiltration cannot withstand very high or low pH environment Nanofiltration membrane tend to have a slightly charged surface, with a negative charge at neutral pH both a and c

Which of the following statements is incorrect? Porous membrane contains fixed pores, in the range of 0.1-10 µm for microfiltration and 2- 100 µm for ultrafiltration. Porous membrane contains variable pores, in the range of 0.1-100 µm for microfiltration and 2- 100 µm for ultrafiltration. The main problem in microfiltration and ultrafiltration membrane is flux decline. Therefore, the choice of membrane material for such process is based on prevention of fouling and cleaning procedure after it is fouled. none of the above

For Nanofiltration membranes, the rejection of monovalent ions range between 0% and 50% 0% and 30% 60% and 70% none of the above

A negative membrane potential indicates that the area with a more negative charge is on the Blank______ of the membrane.Multiple choice question.outsideinsideNeed help? Re

Which one of the following is not considered as an approaches to minimize membrane fouling ? Optimize pH Optimize ionic strength Increase the cross flow velocity Decrease the cross flow velocity

Which of the following aqueous solutions has the highest pH