Cookie Img
Send Inquiry
Home » Products » Other Filtration System » Nanofiltration

Nanofiltration

Nanofiltration
Product Code : SWE-NF
Brand Name : SWE
Product Description

Nanofiltration Systems:

The fundamental principle of Nanofiltration membrane's technology is the use of pressure to separate soluble ions from water through a semi permeable membrane. The membrane operates under a different hydraulic profile which is also known cross flow filtration, unlike a dead end filter.

Most Nanofiltration membranes are composite materials supported by polymer substrate and manufactured in a spiral design as opposed to a flat sheet or tube geometry. The predominant model used today for industrial applications is the spiral configuration.

Nanofiltration (NF), in water treatment, “bridges” a gap between UF and RO membranes. It is sometimes referred to as a loose or lower rejecting RO membrane. It could also be called a tight UF, as NF membrane pore size ranges from .01 to a little less than .001. Generally, an NF membrane system lets more salt pass than an RO membrane. In addition, an NF membrane element will produce the same quantity of product at 50 to 70% the applied pressure as an RO water treatment system.

There are applications where a 75% rate of salt rejection is preferable to 95 to 99%, especially when it is achieved using only half of the energy. Unlike with RO membrane elements, the NF offerings of the major membrane manufacturers are quite different in performance from company to company. With RO membrane elements, any model with less than 99.5% sodium chloride rejection, especially with seawater membranes, is considered inferior. In the case of NF, there is a “place” for any membrane with a NaCl rejection rate of 40%, or more.

Nanofiltration has also been called a “softening” membrane as while its salt rejection may be 80% or less, hardness rejection will often remain well over 90%.

Like RO, and unlike UF, a Nanofiltration Systems will recover a percentage of the feed water. Most all NF membranes are of a spiral wound configuration.

Applications:

  • The removal of heavy metals from wastewater
  • The removal of pesticides from groundwater
  • Wastewater recycling in laundry facilities
  • Water softening
  • Nitrate removal

 

 

Standard Features

  • Powder coated carbon steel frame
  • 8” TFC spiral wound membranes
  • Stainless steel multi-stage pump with TEFC motor
  • FRP membrane housing
  • 5 micron cartridge prefilter
  • 460V/3Ph/60Hz power requirement
  • PLC based control panel
  • Programmable time delay and set points
  • Status indicators
  • Motor starter
  • Low pressure switch
  • High pressure switch
  • Liquid filled pressure gauges
  • Permeate conductivity monitor
  • Permeate & concentrate flow meters

Usages:

Nanofiltration is also becoming more widely used in food processing applications such as dairy, for simultaneous concentration and partial (monovalent ion) demineralization.



Works
Our factory address is:

Plot 6/2, 9&10 Sumukh Industrial Estate,
Phase I, Opposite Kiran Industries,
GIDC, Vatva, Ahmedabad 382445, Gujarat State, India

SHREYANS WATER ENGINEERS
153, Shukan Mall, Science City Road, Sola, Ahmedabad - 380060, Gujarat, India
Mr. Suresh Chaudhari
Mr. Baldev Solanki (Director)
Send Inquiry


Buyers Helpdesk

Let tradeindia.com find Quality Suppliers for you!

I agree to abide by all the Terms and Conditions of tradeindia.com
SHREYANS WATER ENGINEERS All Rights Reserved.