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Commercial Nanofiltration -
Membrane Technology
Nano filtration is a pressure
related process during which separation takes place based on
molecule size. Nano filtration is mainly applied in drinking
water purification process steps, such as water softening, decolouring
and micro pollutant removal. Nano filtration is also applied
in Agricultural and Business applications in the removal of specific
components, such as coloring agents, sugars, dyes, surfactants,
minerals, divalent salts, bacteria, proteins, particles, dyes,
and total dissolved solids.
Because nano filtration uses
less fine membranes, the feed pressure of the NF system is generally
lower compared to reverse
osmosis systems. Also the fouling rate is lower compared
to RO systems.
Nanofiltration (NF) is not as
fine a filtration process as
reverse osmosis (RO), since the membrane pores are typically
much larger. However, NF does not require the same energy to
perform the separation. The differences between the two types
of membrane are subtle, but distinct. Most notably, NF can reject
only ions with more than one negative charge, such as sulfate
or phosphate, while passing single charged ions.
Nanofiltration systems are used
for water filtration, dairy and cattle farming, business, water
softening, food, pharmaceutical, municipal, lake, river, and
well water applications.
Nanofiltration Benefits
- Lower operating costs
- Lower energy costs
- Lower discharge, Less waste
water than RO
- reduces salt (TDS) content of
slightly brackish water
- reduces pesticides, VOC's (organic
chemicals)
- reduces heavy metals
- reduces nitrates and sulfates
- reduces color, tannins, and
turbidity
- softens hard water
- Chemical-Free - i.e. does not
use salts or chemicals
If a higher purity water is needed
or a greater impurity rejection percentage is required please
see our Reverse Osmosis and Commercial
Reverse Osmosis. Reverse osmosis has proven to be the most
efficient means of removing up to 99% of total dissolved solids.
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Comparison Chart |
Reverse Osmosis |
Nano Filtration |
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Filtration level
(micron) |
0.0001 to 0.001 |
0.0008 to 0.01 |
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Size of viruses
(micron) |
0.005 to 0.01 |
0.005 to 0.01 |
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Size of bacteria
(micron) |
0.2 to 10 |
0.2 to 10 |
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Filtration of viruses
and bacteria |
YES |
YES |
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Typical recovery
(%) |
50% |
75% |
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Typical TDS reduction
(%) |
99% |
70% |
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Typical points
of pH reduction |
2+ |
Less than 1 |
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Need for pH correction
of permeate |
Yes, 50% of time |
No, 90% of time |
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Residual water
hardness (grains) |
0 |
1 |
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Maximum raw TDS without
special design considerations (PPM) |
2,000 |
1,500 |
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Average high pressure
(PSI) |
150 |
90 |
- RainDance Water Systems No
Hassle Commercial Nano Filtration Water Treatment Quote Form
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- The Nano systems we offer have
all been for specific applications where the user provides us
feed water chemistry and desired product water quality and quantity
info. Nano water treatment applications are typically softening
related, sometimes it is dewatering to obtain a desired concentrated
by product, other times it is waste water treatment, etc. If
you can obtain feed water info and product water requirements
we can determine if Nano is applicable.
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- Customer Assurance - RainDance
Water Systems has become a stable and reliable name in the water
treatment industry. We take great measures to assure our customers
the best quality, dependability, service, and reliability. Why
Raindance Water Systems? We offer the following:
- Member Ramona Chamber Of Commerce
- Secure online ordering on most
systems or call toll free 1-877-788-8387
- Water Equipment Warranty
- We know reverse osmosis! Quality
Equipment - Knowledge - Superior Customer Service
- Technical and Installation support
available.
- About RainDance Water Systems:
RainDance Water Systems can assist you in all of your residential
and commercial water treatment needs. There's no need to go anywhere
else. With over 80 years of combined experience in the water
treatment business our resources can quickly & accurately
answer all of your water filtration questions. We offer proven
systems for your residential and commercial water treatment applications.
Residential water treatment can be found on our main company
website @ www.raindancewatersystems.com
To ensure our customers receive the most economical, dependable,
and environmentally friendly solutions, our resources include
engineers and water treatment professionals who utilize virtually
all known water treatment processes. This would include: commercial reverse osmosis,
sea water desalination filters,
water store equipment,
water softening, iron
filters, complete well water filtration, city water filtration,
commercial ultraviolet disinfection systems and commercial water
treatment. Our water treatment systems range from domestic residential
households to commercial water applications.
RainDance Water Systems is committed to providing proven water
treatment solutions that enable our customers to achieve their
well and city water filtration needs. We take pride in our products,
our customer service and our shipping procedure (which is our
specialty). To assure a safe and proper delivery for your new
water treatment equipment, we offer export crating and packaging
for all overseas orders. We can use your freight forwarder, ship
freight collect or we can find the best shipping rates from our
facility. For our domestic U.S. orders, we offer crating or pallet
packaging for a safe easy delivery). Our extensive customer database
is second to none.
Our customers include numerous residential households on well
and city water sources, commercial applications, business facilities
and farms throughout the United States, Venezuela, Spain, Africa,
Canada, Japan, U.K., Bahamas, Cayman Islands, Indonesia, Taiwan,
Singapore, Kabul, Afghanistan, and Malaysia.
A small sample of our customer base includes: The U.S. Army,
The U.S. Environmental Protection Agency (EPA), The U.S. Fish
and Wildlife Federation, The United States Coast Guard, Washington
St. National Park Service, San Diego State University, Arizona
State University, Palomar College, Golden Eagle Thoroughbred
Horse Farm, Buckridge Plantation and Stables, Advanced Marine
PTE., Quinlan Texas Elementary School, Fairbanks Farms, Hunter
Industries, Sonance Corp., Owens Brigam Medical, 1st Choice GMAC
Realty, Century 21 Realty, Coldwell Banker Realty, Austin Productions,
Fairfield Country Club, and Auer Precision Inc. Just to name
a few
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