The MFI-UF as a water quality test and monitor

Separation of oil-in-water emulsions using electrospun fiber membranes and modeling of the fouling mechanism

“…However, it is generally recognized that these relationships must be used with caution, because fouling is rarely the result of only one mechanism [22,24]. The fouling of micro-and ultrafiltration membranes are often characterized by the membrane fouling index (MFI), in which the decline in flux is attributed to the specific resistance of the foulant [25][26][27]. The MFI model assumes that the total resistance to flow is the sum of the resistances of the foulants and that of the membrane (i.e.…”

SUR test used for optimisation of membrane filtration plants treating wastewater effluents

“…The MFI is calculated using the same filtration data as the SDI, but interpreting these with the cake filtration theory [8]. To incorporate colloidal particles into the MFI measurement, Boerlage et al [9,10] proposed the application of UF membranes and named this parameter the MFI-UF. In all of these examples a mix of (filtration) properties of the feedwater was related to the occurring fouling phenomena in membrane filtration.…”

Coagulation performance and membrane fouling of different aluminum species during coagulation/ultrafiltration combined process

“…The fouling potential of ultrafiltration membrane is explained by using modified fouling index (MFI) according to the cake filtration theory [20,21]:…”