Reverse Osmosis Membrane

Reverse Osmosis Membrane

Filtration Accuracy

0.0001 microns

Filterable Material

Dissolved Salts & Organic Substances

Reverse Osmosis Membrane

Introduction

The use of reverse osmosis membranes in the water treatment industry is standardized practice, due to the requirement of filtration to take place in removing unwanted impurities from water. Membrane water treatment is done through the use of barriers that allow only specific substances to pass through the small pores of the membrane while not allowing other types of contaminants. There are a variety of membranes in use throughout the market which act as processes in treating groundwater, surface water, and wastewater to a level that is acceptable for industries and especially consumption. It is a rapidly growing industry, as a result of the need to combat low quality water sources such as rivers, lakes, wells, streams, and the ocean, in order to provide more alternative methods in supplying healthy, safe, steady, and accessible water to the masses.

As per mentioned, there are different types of membranes which can be utilized for water treatment. The factors that necessitate which membrane would be more effective relies upon the types of contaminants existing in the water, and the desired water quality by the user.

Reverse Osmosis Membrane 1
Reverse Osmosis Membrane 2

The two most common type of membranes used in the industry are:

Membrane Filtration (ultrafiltration, microfiltration) works by eliminating particles (mainly suspended solids) from water through operating under pressure.

Reverse Osmosis/Nanofiltration Membranes that operates similarly in producing freshwater from the prevention of larger dissolved molecules from passing through the small pores of the permeable membrane, while allowing the pure water to flow through.

LEFILTER is a proud supplier of high quality membranes from top-rated reverse osmosis membrane manufacturing brands such as Dupont/Dow Filmtec, Hydranautics, Toray, CSM, GE, and VONTRON. These membranes come in sizes ranging from 2″, 4″, and 8″ for brackish water and seawater applications. They offer important features necessary for efficient performance, including low pressure and high rejection.

Equivalent Brands

DOW Membrane Equivalent Brands
Hydranautics Membrane Equivalent Brands
Toray Membrane Equivalent Brands
CSM Membrane Equivalent Brands
GE Membrane Equivalent Brands
VONTRON Membrane Equivalent Brands

Common Part Numbers

DowHydranauticsTorayCSMGEVONTRON
BW30XFR-400/34ESPA1-4040TMH20A-400CRE4040-BLRAG8040F-400FR,34SW4040HR
BW30FR-400/34CPA2-4040TMH20A-440CRE8040-BEAG8040F-400ULP21-8040
BW30-400/34C   PA3-LDTMG20-370CRE8040-BLNAG8040F-400LFULP2012
BW30-400/34iSWC5-LDTMG20-400CRE8040-BLRAG4040FMULP1812
BW30-400ESPA2-4040TMG20-440CRE4040-BLNAG8040F-365ULP32-8040
BW30-400IGYQS-4040TMG20D-400RE4040-BEAG8040N-400ULP31-4040
BW30-365ESPA2-7TMG20D-440L-RO-4040AK4040FMULP22-8040
BW30XFR-400/34iCPA6-LDTM720-370RE1812-HR50AG4040FULP21-4040
BW30FR-400/34iESPA2 MAXTM720-400RE1812-HR75ETC.ETC.
BW30HRLE-440LFC3-LDTM720-440RE1812-HR100  
BW30HRLE-440iESPA2TM720C-440RE4021-TE  
XFRLE-400/34iPR0C10TM720D-370RE2521-TE  
SW30HRLE-400PR0C20TM720D-400RE2540-TE  
BW30FR-400/34iESPA2-4040TM720D-440RE4040-TE  
BW30XFRLE-400/34iESPA4-4040TML20N-400RE4040-TL  
BW30LCHR-4040CPA3-LD-8040TML 20D-370ETC.  
BW30-4040SWC5-8040TML20DA400   
LCLE-4040YQS-8040TML20D-400   
BW30HRLE-4040ESPA2-8040TMH10A   
SW30-4040ESNA1-LF-LDTMG10D   
BW30HR-380ESNA1-K1TM710D   
SFP-2880CPA3-LDTML10D   

Application

A reverse osmosis membrane is an essential product for handling water and wastewater. There are three other types of membranes, categorized by membrane pore size, widely used for commercial purposes: Microfiltration (MF), Ultrafiltration (UF ), Nanofiltration (NF). These four membrane types are widely used to meet the objectives of the Drinking Water rules and guidelines of water and wastewater treatment. A reverse osmosis membrane is also used for processing desalted and/or Ultra Pure Water (UPW) for various industrial and other uses, such as making up water from power plants, manufacturing of electronic chips, food industry, pharmaceutical, medical, and others.

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