Whey is the major by-product of cheese industry which contains valuable organic materials. Further processes are needed before these materials can be used in food industry. Membrane filtration a convenient alternative to traditional processes. Low energy consumption, reduced processing costs and enhanced quality products main benefits membrane filtration. Due advantages techniques have affected...

In this study, the applicability of nanofiltration (NF) membranes as a pretreatment prior to reverse osmosis (RO) in seawater desalination was investigated. The membranes used wereNF270 and NF90 as the NF membranes, while the brackish water (BW) RO membrane BW30 was used as the RO membrane. In desalination tests, permeates of the NF membraneswere collected and used as the feed to th...

A novel nanofiltration membrane bioreactor (NF-MBR) was constructed by integrating a loosely structured hollow fiber into an aerobic activated sludge system. In order to verify the feasibility of loose NF bioreactor, parallel experiments conventional ultrafiltration (UF-MBR) and NF-MBR were conducted investigate process performances, fouling characteristics. The showed relatively high permeabil...

A novel polyacrylonitrile (PAN)-based ultrafiltration (UF) hollow-fiber membrane was newly synthesized for nanofiltration (NF) applications. This semi-fully NF characterized using a variety of analysis techniques. The exhibited higher negative charge and hydrophilicity lower surface roughness compared to the pristine UF membrane. Experiments study performance fouling were simulated under labora...

Nanofiltration (NF) has become a widely accepted process not only for producing drinking water but also for recovering wastewater in industrial processes or removing pollutants from industrial wastewater effluent. In the textile industry, the treatment of various dye baths with NF at room temperature have already been studied and was found feasible at lab-scale and pilot scale. The aim of this ...

in this work, several machine learning techniques are presented for nanofiltration modeling. according to the results, specific errors are defined. the rejection due to nanofiltration increases with pressure but decreases with increasing the concentration of chloride ion. methods of machine learning represent the rejection of nanofiltration as a function of concentration, ph, pressure and also ...

nanofiltration (nf) has become a widely accepted process not only for producing drinking water but also for recovering wastewater in industrial processes or removing pollutants from industrial wastewater effluent. in the textile industry, the treatment of various dye baths with nf at room temperature have already been studied and was found feasible at lab-scale and pilot scale. the aim of this ...

ii I hereby declare that I am the sole author of this thesis. This is a true copy of the thesis, including any required final revisions, as accepted by my examiners. I understand that my thesis may be made electronically available to the public. Abstract Arsenic is a known carcinogen, causing cancers of the skin, lungs, bladder and kidney. Current research suggests that drinking water is the mo...

The development of models that predict membrane performance has contributed a better understanding of the basic principles and mechanisms of solute rejection and deposition. It also serves as fundamental properties that allow specific characterization determination. This work fabricates hollow fiber membranes using Polyethersulfone (PES). The membranes were fabricated in-house using phase inver...

Nanofiltration of a solution containing four monovalent ions has been carried out to assess the Donnan steric and dielectrical exclusion pore model (DSDE-PM). The sequences of the ions rejections were Li > Cl > IO3 > K and IO3 > K > Li > Cl when membrane was positive or negative charged, respectively. Several types of ionic radii were implemented either in the interfaces equilibrium or in trans...