Journal of Membrane Science & Technology

A Novel Micro Filtration Membrane was Designed for Effective Separation

Ivana Trusek^* Department of Science, Wroclaw University of Science and Technology, Wroclaw, Poland
^*Correspondence: Ivana Trusek, Department of Science, Wroclaw University of Science and Technology, Wroclaw, Poland, Email:

Received: 04-Mar-2022, Manuscript No. JMST-22-16261; Editor assigned: 07-Mar-2022, Pre QC No. JMST-22-16261 (PQ); Reviewed: 21-Mar-2022, QC No. JMST-22-16261; Revised: 28-Mar-2022, Manuscript No. JMST-22-16261 (R); Published: 07-Apr-2022, DOI: 10.35248/ 2329-6925.22.12. 269

Description

Micro Filtration (MF) membrane is described as a membrane separation technique to remove the particles having average molecular weight >400 k using membranes with a pore size varying between the 0.05-10 μm under an operating pressure of less than 2 bar. MF membrane is a pressure driven technique in which a membrane is applied to separate particles from an aqueous solution. It is described as the filtration of a suspension with colloidal and other fine particles having a linear dimension of approximately 0.02-10 μm [1,2] .

It is a type of membrane filtration physical technique where a contaminated fluid is passed through a special pore sized membrane to separate microorganisms and suspended particles from liquid procedure. It is generally used in conjunction with various separation techniques which includes ultrafiltration and Reverse Osmosis (RO) to provide a product stream which is free of undesired contaminants. As explained micro filtration designates a membrane separation technique similar to ultrafiltration (UF) but with even larger membrane pore size allowing particles in the range of 0.2 to 2 μm. The pressure usually reduces than that of Ultra Filtration (UF) technique procedure.

Micro Filtration (MF) membrane is a separation technique for removing micron sized particles, like bacteria, cells, colloids, and smoke particles from gases. It is used to separate suspended colloidal particles between 0.1-10 μm in diameter from solution. Most of the chromatography applications are micro filtration based. The same type of membrane with different pore length is used for those packages. The main difference between Micro Filtration (MF), Nano Filtration (NF) and Ultra Filtration (UF) is the pore size of the membrane. With each different filtration process a variety of elements get either blocked or passing through water. It is widely employed for filtering numerous varieties of particles which includes microorganisms including fungi, bacteria, and viruses. Viruses are roughly ten times smaller than the pores of micro filtration membranes i.e., they are small enough to pass through the membranes. Micro Filtration (MF) membranes remove all bacteria. Only part of the viral contamination is caught up in the technique, even though viruses are smaller than the pores of a micro filtration membrane [3,4] .

Micro Filtration (MF) membrane usually serves as a pretreatment for other separation techniques including ultrafiltration, and a post treatment for granular media filtration. The typical particle size used for micro filtration ranges from approximately 0.1 to 10 μm. In terms of approximate molecular weight these membranes can separate macro molecules of molecular weights generally less than 100,000 g/mol. The filters used in the micro filtration technique are specially designed to prevent particles including sediment, algae, and large bacteria from passing through a specially designed filter. More micro scope, atomic materials including water (H₂O), monovalent species including Sodium (Na+) or Chloride (Cl⁻) ions, dissolved natural organic matter, and small colloids and viruses will still be able to pass through the filter. Micro filtration membranes are made from a variety of polymers which includes polyether sulfonic, polysulfide, polypropylene, and mixed cellulose esters, and hydrophilized polyvinylidene fluoride [5] .

The advantages of Micro filtration membranes are low operating pressure required, Low energy consumption for semi dead-end set-up, compared to nano-filtration and reverse osmosis, few manual actions required, relatively cheap, no energy consuming phase transfer needed, evaporation techniques, and quality of the produced permeate is not determined by the management. The disadvantages of Micro filtration membranes are only suspended matter and bacteria removed, Sensitive to oxidative chemicals for example nitric acid, sulphuric acid in high concentrations, damage can be caused by hard and sharp particles >0.1 mm, where by pre-filtration is necessary, and membrane damage if re-rinsed at pressure in excess of 1 bar.

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