Towards improved protein anti-fouling and anti-microbial properties of poly (vinylidene fluoride) membranes by blending with lactate salts-based polyurea as surface modifiers

Noncovalently Functionalized Sulfated Castor Oil–Graphene Oxide-Strengthened Polyetherimide Composite Membranes for Superior Separation of Organic Pollutants and Their Fouling Mitigation

“…The mean pore size was calculated by the following Guerout–Elford–Ferry equation where η is the viscosity of water (8.9 × 10 –4 Pa·s), P is the operation pressure (Pa), l is the thickness of membranes (mm), A is the effective membrane area (m 2 ), and Q is the quantity of permeate collected (in m 3 ·s –1 ).…”

Understanding Single-Protein Fouling in Micro- and Ultrafiltration Systems via Machine-Learning-Based Models

“…The database was compiled from 83 publications on single-protein fouling in MF and UF filtration systems in the last 30 years (i.e., 1991–2022). ,− ,− The extraction of data from published publications was done manually by extracting the reported values given in the text or tables and using the WebPlotDigitizer 4.5 software for figures. After the data extraction, the parameters that are prevalently reported in the 83 publications were first identified, thus eliminating the need for assumptions of parameter values (such as zeta potential and hydrophilicity of membrane and protein) that would compromise such an effort .…”

“…However, membrane fouling due to protein remains a challenging issue that needs to be understood for the better application of membrane filtration in these industries. Various studies have been conducted in the past for understanding protein fouling mechanisms. ,− Empirical equations with some physical understanding have been developed to describe various phenomena, but the applicability of such equations usually is limited to the tested parameters in each study, and hence leads to substantial deviations in the predicted values outside of the tested ranges. , In the absence of a comprehensive understanding as in the case of protein fouling, machine-learning methods, which do not require detailed assumptions and governing equations, could be useful to bridge these gaps.…”

“…Only data from the studies that used a single protein type were considered for the current study; the data for mixed-proteins will be studied separately in the future based off the insights here. Although these studies have contributed towards the understanding on protein fouling caused by different parameters, first-principles understanding remains elusive. ,− , While other machine-learning methods are available, NN and RF were employed here as both have been successfully implemented for predicting membrane performance and understanding the relative importance of parameters, respectively, in past studies. ,,, Thus, focusing on single-protein fouling, this study has two main goals, namely, (i) the relative importance of the input parameters on the output parameters via RF; and (ii) the applicability of the NN model in predicting membrane fouling. Ten input parameters were assessed in this study, which incl...…”

Membrane Technology for Groundwater Purification : A review

“…It is preferable to use the membrane in water purification because there are no chemical additives, however, there are many limitations such as; membrane fouling, low flux, and compromised rejection [9]. Microbial properties of poly (vinylidene fluoride) membranes was introduced by blending with lactate salts-based polyurea as surface modifiers in the reported work [10][11][12]. In this review, a focus on ground water in Egypt and membrane as green technology for water purifications will discussed and reviewed.…”