Reverse Osmosis serves as one of the most critical processes
that are involved in the process water treatment to clean water, utilized in
various industrial process applications. Reverse Osmosis can be regarded as the
process wherein semi-permeable membranes help in separating purified water from
contaminated water. It occurs when a pressure is applied to the concentrated
side of the membrane resulting in forcing purified water to the dilute side.
Reverse Osmosis is very efficient for the
treatment of brackish, surface and ground water for both large and small flow
applications. Some examples of industries that use RO water include boiler feed
water, food and beverage, pharmaceutical, metal finishing and semiconductor
manufacturing to mention a few.
The overall performance of a reverse osmosis system relies on various
factors like feed water quality, membrane type, flow control, temperature and
pressure. Systems must be well maintained for ensuring effective performance
with any fouling requiring cleaning that will maximize the output of the water.
Now, scaling of RO Membranes is one
of the critical determining factors of the rate of process water treatment by
reverse osmosis system. More the scaling, reduced is the productivity of the
system. To effectively control the scaling and to improve the productivity of
the system, RO Antiscalant is the best solution one can opt for.
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| Scalant |
What is Scaling?
Scaling can occur when certain dissolved (inorganic)
compounds become more concentrated and exceed their solubility limits and
precipitate on the membrane surface as scale. The most common scale that
develops on RO membrane is that of Calcium Carbonate.
How scaling can be controlled?
The scaling can be controlled in two ways – either by
removing scaling after it has formed or simply by protecting or preventing the
formation of scaling. This prevention can be done by employing RO Antiscalant
chemicals.
RO Antiscalants efficiently controls Iron fouling by
sequestration thereby reducing the frequency of membrane cleaning. It helps to
check the capacity of RO close to design, and assists in minimizing membrane
cleaning cost and shutdowns. It accounts for effective scale inhibition with
high recovery rate. It is effective at low chemical dosage thus appears to be
economical.