Reverse osmosis; These are membrane filtration processes that separate all unwanted minerals from water and are used for pure water and drinking water supply.
Reverse Osmosis Systems
These systems work in cross flow. It is not a filtration process in the usual sense. Because the pores on the membrane that allow water to pass are extremely small. (Approximately one-2,000,000 of 1 mm hole diameter). Only water molecules and some very small inorganic molecules can pass through such a small pore. Other molecules are expelled from the system in the concentrated water phase.
Reverse osmosis systems are generally used after pre-filtration stages. The water is first filtered through a particle filter, particle filtration retains all particles larger than 5 microns in the water. (1 micron = 0.001 mm) Particle filtration is used to prevent clogging of membranes. After particle filtration, the water is passed through an activated carbon filter. Unwanted odor, taste and chlorine are kept in water with activated carbon. After the activated carbon is filtered, the water is passed through 1 micron filtration again. Here, it is ensured that the finer particles are retained. The water passing through these systems is ready to be given to the reverse osmosis membrane. The reverse osmosis membrane holds dissolved ions in the water. Among these ions in water are heavy meth aller, sodium, lead, arsenic, nitrate, asbestos and many other harmful ions. After the water leaves the reverse osmosis membrane, it is passed through a second flavor regulator post activated carbon filter. The water coming out of the reverse osmosis system is at drinking water values.
Particle filters and activated carbon filters in the system have a certain life span and must be replaced periodically. Usually these filters need to be changed once a year. The frequency of replacement may vary depending on the raw water quality and the amount of water treated. Reverse osmosis membrane will last at least 3-4 years with regular maintenance. It is necessary to consult a specialist whether it is time for membrane replacement or not.
MAXI SERIES T.O.S. 150 m3 / day to 1650 m3 / day
Membrane sheaths FRP
TFC Spiral wound membranes 8 ”diameter
AISI304 or AISI316 stainless steel vertical centrifugal high pressure pump
ST-37 Epoxy painted carbon steel or AISI304 Stainless steel chassis
Cartridge filter with 5 micron precision
Low pressure line U-PVC PN16
High pressure line AISI304 Stainless steel
Butterfly valve with inlet electric actuation
Pressure regulating globe valves at pump outlet and waste water line
Low and high pressure switch
Product water and waste water flow meters
Glycerine manometers
Product water conductivity indicator (0-2000µS / cm)
Product water pH meter (optional)
Autoflush, automatic rinsing and chemical washing system
On-Off switch
PLC and operator panel
380 V / 50Hz / 3ph
IP56 control panel
INLET WATER LIMITS
Inlet water TDS: 0 - 2,000 ppm
Working pressure: between 10 and 15 bar
Inlet water pressure: 2 to 5 bar
ASC dosage required if the hardness is more than 3 French
pH range: 6 - 8
Silica (SiO2) Tolerance: 25 ppm max. @ 60% efficiency
Max. Inlet water temperature = 30º C Max.
Max Iron (Fe) tolerance: 0.05 ppm, 0.2 ppm if ASC is dosed
Hydrogen Sulfide should not be.
There should be no turbidity